| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 030392000 | With means to reciprocate saw | 57 |
| 20090119935 | PNEUMATICALLY POWERED POLE SAW - A pneumatically powered pole saw, comprising: an extendable pole; a head member secured to the extendable pole; a cutting blade movably mounted to the head member; a piston linked to the cutting blade; a reciprocating valve disposed in the head member configured to release compressed gas into the piston chamber on one side of the piston when the reciprocating valve is in a first position causing the cutting blade to move in a first cutting direction, when the cutting blade reaches the limit of travel in the first direction, the reciprocating valve releases compressed gas into the piston chamber on another side of the piston causing the cutting blade to move in a second cutting direction. | 05-14-2009 |
| 20100107427 | HAND-OPERATED JIGSAW - A hand-operated jigsaw is disclosed. The reciprocating drive mechanism has a reciprocating body which can be put into a reciprocating motion along an axis via an eccentric of an eccentric wheel that can be set in motion by the motor. The eccentric wheel is arranged on a pivot bearing axis. The reciprocating drive mechanism has an additional mass with a mass center of gravity to minimize vibrations. The additional mass is arranged in a rotationally fixed manner with the eccentric wheel on the pivot bearing axis. An eccentric axis of the eccentric lies on a first radial of the pivot bearing axis, which is offset from a second radial in the operating direction of rotation of the eccentric wheel at an angle of between 190° and 270°, which second radial lies between the mass center of gravity of the additional mass and the pivot bearing axis. | 05-06-2010 |
| 20100095537 | TOOL AND METHOD OF USING SAME - The invention relates to a reciprocating saw that includes a reciprocatable spindle for supporting a saw blade for reciprocating sawing movement. A body houses a motor and a drive mechanism driven by the motor. The drive mechanism selectively drives the spindle and the body supports the spindle. A grip extends outwardly from the body adjacent a center of gravity of the saw so as to allow an operator to operate the reciprocating saw with a first hand and support a workpiece being cut with a second hand. | 04-22-2010 |
| 20090044416 | Handheld power saw - The invention is based on a handheld power saw, having a coupling means ( | 02-19-2009 |
| 20090100690 | Universal saw - A hand power tool that can be folded in its longitudinal span, having a housing base body that holds the driven tool insert and whose axis is adjustable—relative to the axis of a housing part serving as a handle—around a folding axis, is made especially compact and lightweight in that the hand power tool is embodied in the form of a universal saw that has the ability to be locked in various angular positions of the housing parts relative to one other; the housing part contains the drive motor, whose driven rotary motion is transmitted via an angle transmission to the tool insert—a saw blade—that is guided in the housing base body. | 04-23-2009 |
| 20100275452 | HANDHELD POWER TOOL, IN PARTICULAR HANDHELD POWER SAW - The invention relates to a handheld tool, in particular a handheld saw, with an electric drive motor ( | 11-04-2010 |
| 20080282557 | Handheld Power Tool - The invention relates to a hand machine-tool comprising a housing ( | 11-20-2008 |
| 20120096721 | RECIPROCATING SAW - A reciprocating saw includes a motor and a drive shaft driven by the motor. The drive shaft defines a longitudinal axis. The reciprocating saw also includes a wobble plate coupled to the drive shaft. The wobble plate extends from the drive shaft at an oblique angle relative to the longitudinal axis. The reciprocating saw further includes a spindle coupled to and reciprocated by the wobble plate. The spindle has a stroke length. The reciprocating saw also includes an adjustment mechanism coupled to the wobble plate. The adjustment mechanism is operable to adjust the stroke length of the spindle. | 04-26-2012 |
| 20100126028 | DRIVE MECHANISM FOR A RECIPROCATING TOOL - Embodiments are disclosed of a drive apparatus for a reciprocating tool, that comprises a housing, a rotatable drive shaft assembly located in the housing, an elongated plunger located in the housing for reciprocating motion, the plunger having a front end portion for attaching a cutting blade thereto, a rotary joint elongated rocker having a lower end portion with a lower pivot connection to the housing and an upper end with an upper pivot connection to a mid portion of the plunger, a wobble plate interface operatively connected to the drive shaft assembly, a lower portion having an effective lower pivot connection, the interface also having an upper pivot connection to a rear portion of the plunger and configured to reciprocate the plunger generally in its lengthwise direction during alternating cutting and return strokes, the distances between the upper and lower pivot connections of both the rocker and wobble plate interface together with the distance between the upper pivot connections thereof to the plunger defining a four bar mechanism that produces a path of movement of an attached cutting blade that is effective to apply a progressive non-linear cutting force to a work piece during the cutting stroke. | 05-27-2010 |
| 20080209742 | Reciprocatory saw and more especially a jigsaw - A reciprocatory saw and in particular a jigsaw comprises a pitman with a chuck means arranged for the releasable clamping of a saw blade. The chuck means comprises a movably mounted chuck jaw arrangement able to be clamped laterally against the saw blade shank, a wedge element arrangement adjacent to and for cooperation with the chuck means, a first spring means whose spring force acts downwardly on the inserted saw blade and a second spring means whose spring force acts on the wedge element arrangement downward. The wedge element arrangement is connected with the chuck jaw arrangement in a manner for the transmission of rotary movement and from the outside and is able to be shifted between a bottom clamping position clamping the chuck jaw arrangement against the saw blade shank and a top release position freeing the chuck jaw arrangement. The wedge element arrangement assumes an angular position turned in relation to the clamping position and is seated on a stationary holding face. Furthermore there is a stationary abutment face associated with an abutment arrangement on the saw blade shank so that in the clamping position the abutment arrangement is held by the first spring means against the abutment face and in the turned release position of the wedge element arrangement and the chuck jaw arrangement the shank may be moved beyond the abutment face. | 09-04-2008 |
| 20090277022 | KEYLESS BLADE CLAMP FOR A POWER TOOL - A reciprocating tool that includes a spindle that reciprocates with respect to a housing within a cavity of the housing. The reciprocating tool includes a blade clamp mechanism actuator coupled to the housing for movement with respect the housing between first and second positions. The spindle reciprocates with respect to the blade clamp mechanism actuator. A blade clamp mechanism is coupled to the spindle for reciprocating movement therewith, and the blade clamp mechanism is configured to attach the saw blade to the spindle. The blade clamp mechanism includes a collar mounted on the end of the spindle, and the collar is rotatable about the longitudinal axis of the spindle between an engaged position and a disengaged position in response to movement of the blade clamp mechanism actuator between the first position and the second position. | 11-12-2009 |
| 20080244916 | Hand-Held Power Tool with a Rod-Shaoed Grip - A hand-held power tool, in particular a barrel jigsaw, having a barrel grip ( | 10-09-2008 |
| 20080289196 | Electric jigsaw - An electric saw ( | 11-27-2008 |
| 20080276470 | Reciprocating Saw and Attachments - A simple attachment for a reciprocating tool that will effectuate the ability to do a flush cut in an inexpensive and simple manner which is neither' too ligid, nor not rigid enough. This is effectuated by providing an insert, which fits into the reciprocating tool in the same fashion as a regular' blade. The present invention then offsets the placement of a blade, sander, file, or' other 1 tool by as many inches as wished by the user | 11-13-2008 |
| 20090113728 | Reciprocating power tool - It is an object of the invention to provide a useful technique for reducing vibration of a handgrip and improving the cutting efficiency while achieving weight reduction of a reciprocating power tool. According to the invention, a representative reciprocating power tool is provided to comprise a body, a tool bit, an actuating mechanism, a handgrip. The handgrip and the body can rotate with respect to each other via a pivot in a direction crossing the direction of reciprocating linear motion of the tool bit. An elastic element is disposed between the handgrip and the body and serves to absorb vibration transmitted from the body to the handgrip by elastically receiving the relative rotation of the handgrip and the body. According to the invention, vibration in the handgrip can be reduced and the cutting efficiency can be improved without complicating the construction. | 05-07-2009 |
| 20090188119 | LINKAGE DRIVE MECHANISM FOR A RECIPROCATING TOOL - Preferred embodiments of a reciprocating drive apparatus are disclosed that comprise a housing, a rotatable drive shaft assembly located in the housing an elongated plunger located in the housing for reciprocating motion, the plunger having a front end portion for attaching a tool thereto, a rotary joint rocker mechanism supported in the housing and operatively connected to the plunger and the drive shaft assembly so that rotation of the drive shaft assembly produces reciprocating motion of the plunger. Another preferred embodiment includes a reciprocating counterweight. | 07-30-2009 |
| 20090025233 | HAND-HELD JIGSAW - The invention is based on a hand-held jigsaw, in particular a scrolling jigsaw. It is proposed that control means ( | 01-29-2009 |
| 20120192439 | Tool Device - A tool has at least one point, at least one working edge, at least one edge, which connects to the point and is located opposite of the working edge and which has at least one first edge region that is straight and forms an inclination angle between 0° and 2.5° with the working edge. The edge has a second edge region, which has a different inclination than the first edge region. | 08-02-2012 |
| 20100162579 | RECIPROCATING POWER TOOL HAVING A COUNTERBALANCE DEVICE - A reciprocating power tool that includes a drive system having a first driven gear that includes a spindle counterbalance weight and a second driven gear that includes a spindle counterbalance weight. The first driven gear and the second driven gear rotate in opposite directions about an axis of rotation in response to rotation of a driving gear by a motor. The power tool further includes a spindle having a longitudinal axis and a first end that is configured to support a tool element. The spindle is coupled to one of the first driven gear and the second driven gear by a scotch yoke mechanism to reciprocate the spindle with respect to a housing of the power tool along the longitudinal axis of the spindle in response to operation of the motor. | 07-01-2010 |
| 20100180455 | Hand-held reciprocating power saw - A hand-held reciprocating power saw ( | 07-22-2010 |
| 20090077819 | Cutting Angle Indicator in Jigsaw Housing with Positive Lock in Separately Assembled Shoe Sub-Assembly - A jigsaw generally includes a housing containing a motor activated by a trigger assembly. A shoe member is pivotally connected to the housing. A locking mechanism has an unlocked condition that permits the shoe member to pivot relative to the housing and a locked condition that prevents the shoe member from pivoting relative to the housing. A stop member extends from the housing and the shoe member is configured to be moved axially relative to the housing so that a portion of the shoe member engages the stop member to prevent the shoe member from pivoting relative to the housing. The stop members provide an additional positive lock for the shoe member at a certain cutting angle. | 03-26-2009 |
| 20090077817 | DASH-DOT LASER CUTTING GUIDE TILTABLE FROM A HOUSING FOR BATTERY REPLACEMENT - A jigsaw generally includes a housing that contains a motor activated by a trigger assembly. A reciprocating shaft is connected to the motor that extends from the housing toward a cutting area. A laser module is contained with a housing operable to produce a laser light pattern forward of the cutting area. An upper connection portion releaseably connects the housing of the laser module to the housing of the jigsaw. A lower connection portion pivotally couples the housing of the laser module to the housing of the jigsaw to permit the housing of the laser module to tilt away from the housing of the jigsaw to provide access to a rear area of the laser module. | 03-26-2009 |
| 20090077816 | ADJUSTABLE AND REMOVABLE KEEL ASSEMBLY AND BLADE GUIDE FOR A JIGSAW - A jigsaw includes a housing containing a motor activated by a trigger assembly. A shoe member is pivotally connected to the housing of the jigsaw and establishes an angle therebetween. The jigsaw includes a keel assembly includes a blade member that generally extends from the housing beyond the shoe member. The keel assembly remains generally in line with the housing as the angle between the shoe member and the housing varies. The jigsaw also includes a latch assembly capable of retaining and releasing the keel assembly from the housing. | 03-26-2009 |
| 20100154231 | ROTATING SPINDLE FOR A RECIPROCATING SAW - A reciprocating saw including a first end, a working end opposite the first end, and a housing extending between the first end and the working end. A reciprocating shaft is supported within the housing and has a longitudinal axis. A locking mechanism is supported at the housing and is selectively moveable between a first position and a second position. When the locking mechanism is in the first position the reciprocating shaft is configured to substantially reciprocate relative to the housing but remain substantially rotationally fixed relative to the longitudinal axis of the reciprocating shaft. When the locking mechanism is in the second position, the reciprocating shaft is configured to substantially reciprocate relative to the housing and at the same time substantially rotate about the longitudinal axis of the reciprocating shaft independent of the housing. | 06-24-2010 |
| 20120192438 | RECIPROCATING POWER TOOL - It is an object of the invention to provide a technique for reducing vibration by counter weights which smoothly operate without linearly reciprocating, in a reciprocating power tool. | 08-02-2012 |
| 20100218389 | Reciprocating Saw Blade With Tangs On Each End And Related Method - A reciprocating saw blade has a first end with a first tang and a second end with a second tang. The first and second tangs are alternatively engageable with the chuck of a reciprocating saw. The reciprocating saw blade defines a substantially uniform cutting edge extending from approximately the first end to approximately the second end of the blade. The first tang is engageable with the chuck of the reciprocating saw for fixedly securing the first end of the blade to the reciprocating saw and forming with the second tang the free end of the saw blade. Alternatively, the second tang is engageable with the chuck of the reciprocating saw for fixedly securing the second end of the blade to the reciprocating saw and forming with the first tang the free end of the reciprocating saw blade drivable in a reciprocating motion by the reciprocating saw. | 09-02-2010 |
| 20100000100 | HAND-HELD JIGSAW WITH CLAMPING DEVICE FOR RECIPROCATING TOOL, IN PARTICULAR A JIGSAW BLADE - The invention relates to a hand jig saw having a chucking device for a tool that can be moved back and forth, particularly a jig saw blade ( | 01-07-2010 |
| 20080229589 | Power tool having improved visibility of the cutting area - An electrically powered hand operated cutting tool comprising a housing for accommodating a motor having an output shaft coupled to a gearbox, said gearbox being arranged to convert rotary output motion of the motor into reciprocating motion of a shaft, said shaft having a clamp disposed at one end for clamping a saw blade thereto, and a footplate for engaging with a work-piece during use, said footplate comprising an opening through which a blade disposed in the clamp can pass, wherein the tool further comprises a camera and display screen, during use, said camera being arranged to take real-time images of a blade engaging with a work-piece, and wherein the display screen displays the real-time images, said display screen being disposed on the housing so as to be visible to an operator. | 09-25-2008 |
| 20110239474 | POWER TOOL WITH VIBRATION REDUCING MECHANISM - A power tool comprises a crank pin that is eccentrically rotatable by a motor about a rotational axis. A non-rotatable first slider is linearly reciprocated by the crank pin so as to linearly reciprocate a tool. An eccentric pin is disposed substantially diametrically opposite of the crank pin relative to the rotational axis and is eccentrically rotatable by the motor about the rotational axis. A non-rotatable second slider is linearly reciprocated by the eccentric pin in a substantially opposite phase from the first slider so that the second slider acts as a counterweight to the first slider in order to reduce vibrations at least in the direction of linear reciprocation. A rotatable component is rotatably driven by the motor about the rotational axis and has a center of gravity displaced from its rotational axis towards the eccentric pin so as to supplement the vibration reducing function of the counterweight. | 10-06-2011 |
| 20100229407 | POWER HACKSAW WITH A FASTENING DEVICE FOR A SAW BLADE - A reciprocating saw has a locking element ( | 09-16-2010 |
| 20110154671 | Reciprocating pruning saw - An apparatus for the cutting of tree limbs includes an extensible drive shaft that is detachably-attachable at one end to a portable electric drill and is secured to a housing at an opposite end thereof. The housing converts the rotary motion that is supplied by the drill into reciprocating motion of a saw blade and it disposes the saw blade at an angle with respect to the drive shaft that is slightly less than 90 degrees. An extensible two-part cylindrical outer sleeve covers the drive shaft and is detachably-attached at one end thereof to the drill and at an opposite end to the housing. A hook is provided in the housing and is used to grab and urge severed limbs where desired. An optional clamping mechanism is attached to the housing and is used initially to urge the blade and the limb toward each other during cutting and then to retain the limb proximate the housing after it has been cut for controlled placement and safe release of the limb. | 06-30-2011 |
| 20110247223 | RECIPROCATING CUTTING TOOLS - A reciprocating cutting tool includes a motion converting mechanism configured to convert rotation of a rotary member into a reciprocating motion of a slider coupled to a rod capable of mounting a blade thereon. The reciprocating cutting tool further includes a slider support mechanism including a first support mechanism and a second support mechanism disposed at different positions along a reciprocating direction of the slider and each supporting the slider such that the slider can move in the reciprocating direction. The first support mechanism includes a first member and a second member disposed on opposite sides of the slider in a holding direction perpendicular to the reciprocating direction and each slidably contacting the slider. | 10-13-2011 |
| 20090000131 | Saw comprising movable guide - A saw can include a guide for guiding a saw blade. In one embodiment, the guide can be moveable between an active position wherein the guide guides a saw blade and an inactive position wherein the guide does not guide the saw blade. | 01-01-2009 |
| 20110185582 | POWER TOOL, ESPECIALLY HAND-HELD POWER TOOL - The invention relates to a power tool ( | 08-04-2011 |
| 20100031518 | HAND HELD POWER SAW APPARATUS AND METHOD - An apparatus is provided comprising a saw blade, and a saw body portion of a power saw. A lower retaining device, which can hold an object so that the object can be cut by the saw blade, is attached to the saw body portion. The lower retaining device may be attached to the saw body portion so that the object holding device can pivot with respect to the saw body portion. The apparatus may be a reciprocating saw. The lower retaining device may be supplemented with an upper retaining device for holding an object tightly while cutting. | 02-11-2010 |
| 20100024226 | HANDHELD POWER TOOL - A handheld power tool having a power tool that executes a reciprocating motion, in particular a reciprocating power saw with a reciprocating sawblade ( | 02-04-2010 |
| 20120005906 | Guiding System for Power Tools - A power tool, particularly in the form of a keyhole saw as a hand-held power tool includes a work tool. A working line to be followed by the work tool with respect to the workpiece is optically provided by the power tool without contact being involved. | 01-12-2012 |
| 20090077818 | Housing of a cutting tool including blade storage, integral blade guard and motor ventilation pathway - A jigsaw that uses a cutting blade generally includes a housing containing a motor activated by a trigger assembly. A blade storage compartment is recessed in the housing. A platform is provided in the blade storage compartment having a first edge that at least partially defines a first recess that extends further into the housing beyond the platform. A member is connected to the platform that produces a magnetic field that releasably secures the cutting blade to the platform. The magnetic field is configured to permit a user to tilt the cutting blade about the first edge of the platform into the first recess to overcome the magnetic field and remove the cutting blade from the storage compartment. | 03-26-2009 |
| 20100126027 | IMPACT ABSORPTION DRIVE MECHANISM FOR A RECIPROCATING TOOL - Embodiments are disclosed for a reciprocating saw that comprises a housing, a drive mechanism in the housing, a motor in the housing for driving the drive mechanism, an elongated plunger located in the housing for reciprocating motion and having a front end portion for attaching a saw blade for cutting material, the saw having an energy absorbing compliant configuration at least partially isolating a portion of the plunger and the drive mechanism from high energy impulses that can be produced by the saw blade being bound in the material being sawed during operation of the saw. | 05-27-2010 |
| 20120297632 | CUTTING TOOLS - A cutting tool may include an outer housing that receives a motion conversion unit and a drive device therein. A cutting blade may be driven by the drive device via the motion conversion unit. A dust preventing device may prevent dust from reaching to the drive motor from between the outer housing and the motion conversion unit. | 11-29-2012 |
| 20110239473 | Jig Saw with Saw Blade Holder - The invention relates to a jigsaw ( | 10-06-2011 |
| 20080222901 | Hand-Guided Power Jigsaw - The invention relates to a handheld hacksaw with a saw blade that can be moved to and fro, an effective support device ( | 09-18-2008 |
| 030393000 | In uniplanar compound path | 8 |
| 20130055576 | Drive Mechanism for a Reciprocating Tool - In one embodiment, a reciprocating tool includes an elongated spindle configured to reciprocate along its lengthwise axis, a wobble drive mechanism operably connected to the elongated spindle, an elongated rocker assembly having an upper end portion operably connected to the spindle, a lower end portion, and a pivot located between said upper and lower end portions, and a counterweight operably connected to the lower end portion, such that as the elongated spindle reciprocates along its lengthwise axis, the counterweight is driven by the elongated rocker assembly to reciprocate along the axis. | 03-07-2013 |
| 20100101101 | PROGRESSIVE FORCE CUT PATH DRIVE MECHANISM FOR A RECIPROCATING TOOL - Embodiments are disclosed of a drive apparatus for a reciprocating tool, that comprises a housing, a rotatable drive shaft assembly located in the housing, an elongated plunger located in the housing for reciprocating motion, the plunger having a front end portion for attaching a cutting blade thereto, a rotary joint elongated rocker having a lower end portion with a lower pivot connection to the housing and an upper end with an upper pivot connection to a mid portion of the plunger, a wobble plate interface operatively connected to the drive shaft assembly, a lower portion having an effective lower pivot connection, the interface also having an upper pivot connection to a rear portion of the plunger and configured to reciprocate the plunger generally in its lengthwise direction during alternating cutting and return strokes, the distances between the upper and lower pivot connections of both the rocker and wobble plate interface together with the distance between the upper pivot connections thereof to the plunger defining a four bar mechanism that produces a path of movement of an attached cutting blade that is effective to apply a progressive non-linear cutting force to a workpiece during the cutting stroke. | 04-29-2010 |
| 20090241354 | Reciprocating saw - A reciprocating saw having a housing, a reciprocating shaft unrotatably connected to a blade, a rear handle and a forward handle, the forward handle being rotatably mounted to the housing near the blade and capable of sliding relative to the reciprocating shaft, but incapable of rotating relative to the reciprocating shaft. The forward handle comprises at least one hole, the reciprocating saw further includes a button connected to a locking element for engaging or disengaging with the at least one hole. The reciprocating saw is easy and comfortable to operate. | 10-01-2009 |
| 20120192440 | POWER TOOL WITH RECIPROCATING BLADE - A power tool includes a housing, a motor supported by the housing and having an output shaft, a planetary transmission coupled to the output shaft and having an output carrier, a dual-eccentric scotch yoke mechanism coupled to the output carrier and drivable by the planetary transmission in response to rotation of the output shaft, and a blade coupled to the dual-eccentric scotch yoke mechanism for movement in a reciprocating manner. | 08-02-2012 |
| 20090077820 | Control of Reciprocation Speed and Orbital Magnitude of a Jigsaw with a Plurality of Material and/or Task Descriptive Icons - A jigsaw generally includes a housing containing a motor activated by a trigger assembly. A single control member is connected to the housing and configured to be accessible by a user. A reciprocating shaft moves at a reciprocation speed and at a magnitude of orbital motion when the trigger assembly is in a retracted condition. The single control member is operable to be positioned among a plurality of positions. Each of the positions corresponds to a predetermined combination of values of the reciprocation speed and the magnitude of the orbital motion. | 03-26-2009 |
| 20120030955 | Motor Driver Power Tool - A machine tool, in particular a keyhole saw, includes a support frame that is twistably supported on the housing and forms the guide for a linear sliding part of the lifting drive unit for the working tool. The linear sliding part is mounted on the lifting rod. | 02-09-2012 |
| 20110314683 | Power Tool, Particularly a Hand-Held Power Tool - A power tool, particularly in the form of a keyhole saw, is provided with a sensor device that senses the position of the tool, in particular the reciprocating position of the saw blade in at least one of the reversal positions. | 12-29-2011 |
| 20110146087 | ELECTRIC HAND POWER TOOL - An electric hand power tool with oscillating working movement, particularly translation movement, is made particularly compact and with low volume by an elastomeric module. According to the invention, the elastomeric module extends and/or contracts when electric voltage is applied. The module, being used as drive, being can be coupled mechanically to a tool and electrically to a voltage source. | 06-23-2011 |
| 030394000 | Including connecting rod articulated with saw blade or support | 7 |
| 20110296697 | CUTTING TOOLS - A blade mounting device of a cutting tool includes a lock device and a blade guide. The lock device is configured to releasably lock a blade against a rod of a cutting tool. The blade guide is movable relative to the rod in an axial direction of the rod and is coupled to the lock device, so that the lock device locks and releases the blade in response to position of the blade guide in the axial direction. The blade guide has a guide recess having a bottom and capable of guiding and engaging the blade, so that the blade guide can be moved by the blade in the axial direction through engagement of the guide recess with the blade. The blade guide has a configuration other than a thin flat plate configuration. | 12-08-2011 |
| 20080229590 | ROOFMATES SHINGLE KNIFE - In one embodiment of the present invention, SHINGLE KNIFE™, comprises a pneumatically powered miniaturized reciprocating or circular saw designed especially for roofing applications. In an alternative embodiment, SHINGLE KNIFE™ may be powered by rechargeable battery packs or the like. SHINGLE KNIFE™ is roughly size and shape of a Prior Art razor knife, but may be powered and provided with a depth gauge to prevent cutting through roofing underlayment or the like. In another embodiment of the present invention, the SHINGLE KNIFE™ may be provided for cutting sheetrock. A reciprocating, sharpened hook shaped blade pulls though the sheetrock, making a clean cut with little or no powdery debris. The SHINGLE KNIFE for sheetrock may be air or battery powered. | 09-25-2008 |
| 20110247224 | CABLE SAW SYSTEM - A cable saw system is described comprising a cable saw blade, a forward handle removably connected to a forward end of the blade, a rearward handle removably connected to a rearward end of the blade. A motor mounted in the rearward handle. A forward block is configured to removably receive the forward handle, and a rearward block spaced apart from the forward block and configured to removably receive the rearward handle. A threaded dowel connects the forward block to the rearward block, the threaded dowel being configured to be rotatable to adjust the spacing between the forward block and the rearward block and thereby to adjust tension in the blade. The forward handle and the rearward handle are removable from the forward block and the rearward block so that the handles are capable of manipulation to apply a force between the blade and an object-to-be-cut, and when the forward handle and the rearward handle are received by the forward block and the rearward block, a force is applicable between the blade and an object-to-be-cut, and the tension in the blade is adjustable by rotating the dowel. | 10-13-2011 |
| 20110107608 | RECIPROCATING SAW - A reciprocating saw includes a housing assembly and a motor positioned substantially within the housing assembly. The motor includes a pinion. A drive mechanism is positioned substantially within the housing assembly and includes a gear driven by the pinion, a spindle, and a connecting rod to transmit rotation of the gear into reciprocation of the spindle. A bushing is positioned substantially within the housing assembly about at least a portion of the spindle. The bushing is pivotable relative to the housing assembly to accommodate non-linear rocking motion of the spindle. A seal surrounds a portion of the bushing and includes a first lip extending radially from the bushing and a second lip spaced apart from the first lip and extending radially from the bushing. The second lip is movable relative to the first lip. Both the first lip and the second lip continuously engage the housing assembly when the bushing pivots relative to the housing assembly. | 05-12-2011 |
| 20120151782 | HAND TOOL HAVING A RECIPROCALLY DRIVING MECHANISM - A hand tool having a reciprocally driving mechanism includes a driver, a body and a blade assembly. The driver has a driving shaft and a trigger. The driving shaft is controlled by the trigger and has a gear portion. The body has a driving gear having a teeth portion disposed on a top of the driving gear for engaging the gear portion. The driving gear has a stub eccentrically disposed on a bottom of the driving gear for driving a driving unit to move and to relatively drive a driven rod. The driven rod is connected with the blade assembly. The driving shaft is able to drive the blade assembly to reciprocally move for providing a higher torsion, a higher driving force, and a higher cutting speed, such that the hand tool is suitable for cutting a thicker workpiece. | 06-21-2012 |
| 20110265335 | MOTOR-DRIVEN MACHINE TOOL - For a machine tool designed in particular as a saber saw, a configuration including a carrying frame is provided, via which the lifting rod and the support element are joined to form a unit that can be rotated about the longitudinal axis of the power tool, is mounted on the casing side, and guides a drive part of the lift drive on the lifting rod side. | 11-03-2011 |
| 20120324744 | RECIPROCATING TOOL - An arcuate action tool attachment is adapted to receive an input and to convert that input into reciprocating output motion along an arcuate path. The tool may be adapted to be combined with an existing linear reciprocating device or a rotary device, or the tool may comprise a single unit including a linear reciprocating device or a rotary device. The tool may be fitted with one or more curved or arc-shaped accessories, such as saw blades or the like, that reciprocate along the arcuate paths that may have substantially the same radius of curvature as the accessory. | 12-27-2012 |
