| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 227132000 | Spring | 25 |
| 20110073632 | MINI DESKTOP STAPLER - A miniature spring-actuated stapler includes a tapered, flat power spring to store energy and eject staples. The power spring pivots at a rear of the stapler housing and includes three co-extensive arms terminating near the striker. As the L-shaped handle of the stapler is pressed, it acts on the center arm of the power spring to deflect it downward while the outer arms deflect upward. The arms are integral at a rear end and the outer arms are linked to the striker at the front. A tapered, flat reset spring disposed generally parallel to the power spring is used to reset the internal action. The housing includes open top and rear areas with the handle providing the enclosure thereof. A base assembly is slidably attached at a bottom of the stapler with an open position exposing a staple-loading chamber. | 03-31-2011 |
| 20090152321 | Hand-held drive-in tool - A hand-held drive-in power tool for driving in fastening includes a drive-in ram ( | 06-18-2009 |
| 20090152320 | Stapler - A stapler comprises a body including two holes formed on two sidewalls thereof and a link defined on one sidewall thereof; a magazine assembly installed in the bottom of the body; a handle assembly including a handle lever formed on an end thereof a handle stop defined on another end thereof a link and a through hole between the handle lever and the handle stop, a connector disposed in the link thereof and respectively pivotally coupling to the holes, and a first roller inserting through the through hole and moving rotatably in the link of the body; a power spring disposed in the body; and a plunger including a first hole and a second hole; wherein while the handle lever is pressed downwardly and the handle stop lifts the plunger upwardly, the first roller is driven to move rotatably in the link of the body as to detach the handle stop from the plunger gradually. | 06-18-2009 |
| 20120031945 | Stapler With Leaf Spring Actuation Mechanism - The present invention provides a stapler with a novel leaf spring actuation mechanism. According to the teaching of the present invention, the stapler comprises a striking plate for dispensing a staple from a staple magazine, a leaf spring engaged with the striking plate for driving the striking plate, and an actuation bar for lifting the leaf spring from a first position to a second position whereby lifting the striking plate from an initial position to a release position in which the leaf spring is released from the actuation bar to drive the striking plate towards the initial position. Preferably, a pair of lugs on the actuation bar pushes up a pair of tabs on the leaf spring when an L-shaped front end of the actuation bar moves upward along a ramp when an external force is applied to the actuation bar during the stapling operation. | 02-09-2012 |
| 20080308599 | HIGH-START COMPACT SPRING ENERGIZED STAPLER - A spring energized stapler includes a “high-start” design wherein a striker has an initial rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move father than a cage front end travel distance. A lever links the striker to the power spring to provide leverage upon the power spring. The lever and cage/spring subassembly are nested in a compact assembly. A safety lock includes a two step action to restrict motion of the striker, and fits a notch in a bottom of the striker. | 12-18-2008 |
| 20080210736 | Hand-held drive-in tool - A hand-held drive-in tool for driving fastening elements ( | 09-04-2008 |
| 20080290133 | FASTENER GUN - A fastener gun includes a housing having a plunger and a power spring for driving a fastener into a workpiece, and a trigger arm pivotally attached to the housing at a trigger pivot. One end of the trigger arm lifts the plunger to bias the power spring when the trigger arm pivots in a first direction toward the housing. A member contacting the trigger arm is provided that moves away from the trigger pivot as the handle moves toward the housing, so that force is applied at different locations on the trigger arm when the handle is squeezed, increasing the mechanical advantage of using the fastener gun. | 11-27-2008 |
| 20080277445 | Single fire tacker instrument - A single fire tacker instrument is provided for installing a fastener through a prosthetic mesh and into tissue. The single fire tacker instrument includes a handle assembly and an elongated tacker assembly extending distally from the handle assembly. The elongated tacker assembly includes an inner tube for mounting the elongated tacker assembly to the handle assembly. The elongated tacker assembly includes a drive rod and a driver for rotating the faster into tissue. A spring clip is provided about the driver to releasably retain the fastener on the driver. The elongated tacker assembly and additionally includes a spring biased outer tube mounted for movement relative to the handle assembly. The outer tube shields the fastener prior to insertion into tissue. | 11-13-2008 |
| 20080223901 | Effort-Saving Stapler - An effort-saving stapler includes a shell device and a triggering device installed to the shell device. The triggering device includes a trigger, an operation element and two bearings. An end of the trigger defines a lever for user to hold, and another end of the trigger includes teeth engaging with the shell device. A pivot pin is adapted for inserting through the trigger, the operation element and the bearings so that the pivot pin can drive the operation element to move in the trigger. A limit pin is adapted for inserting through the trigger and the operation element and abuts with the shell device. The pivot pin is regarded as a fulcrum, while the trigger is pressed, the teeth of trigger engage with the shell device so that the pivot pin quickly moves with the trigger. | 09-18-2008 |
| 20080302853 | CONTOURED BASE FOR DESKTOP STAPLER - A desktop stapler uses a spring to store energy to install staples by impact blow. The force required to fasten papers together is reduced. A very compact mechanism is used, including a dual coil power spring with a nested lever. A multi-function base provides a sloped front all the way down to a desktop surface to guide paper sheets atop the base, easy access for lifting the stapler off a desk while in its horizontal or vertical resting positions, and integrated soft grip under surface. The base surrounds the rear of the stapler body to provide a smooth exterior so that the device is natural to use both horizontally and vertically. A simple re-set spring provides a smooth re-set action as the handle is raised. A staple track includes enlargement features to fit a larger staple pusher spring. | 12-11-2008 |
| 20090200354 | Magazines in fastener driving tools - A magazine in a fastener driving tool includes a magazine body, a pusher, a biasing device and a pusher holding device. The magazine body defines a fastener receiving space for storing a plurality of fasteners therein. The pusher is mounted to the magazine body and is movable in a fattener feeding direction toward a fastener driving channel defined in a tool body of the fastener driving tool. The biasing device biases the pusher in the fastener feeding direction. The pusher holding device can hold the pusher at a midway position within a movable range of the pusher in the fastener feeding direction. The pusher holding device may include no insertion hole or only one insertion hole formed in the magazine body. | 08-13-2009 |
| 20090250500 | CORDLESS FRAMING NAILER - A driving tool with a driver and a motor-driven flywheel that can be engaged by the driver to propel the driver along a driver axis. The driving tool includes a return mechanism with a rail onto which the driver is received. The rail extends parallel to the driver axis. | 10-08-2009 |
| 20100187281 | HIGH-START SPRING ENERGIZED STAPLER - A spring energized stapler includes a “high start” design wherein a striker has a rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move farther than the striker's distance of travel. The handle includes a movable pivot location to enable enhanced motion of the handle pressing end. Alternatively, an optional lever links the striker to the power spring to provide leverage upon the power spring. A release latch may be mounted in front of the striker to be engaged by the lever or the handle. | 07-29-2010 |
| 20100276468 | MARKER SYSTEM WITH MARKER AND INSTALLATION APPARATUS - A marker installation system comprises a marker comprising a shaft having a bottom end and a top end, and including an insertion portion, a mast portion, and an engagement portion located between the insertion portion and the mast portion. The engagement portion is configured to resist further insertion of the shaft into the ground beyond the insertion portion. The system includes a marker installation apparatus including a magazine assembly defining a magazine space in which the marker is positioned. The magazine space has a push position in the magazine space for receiving the marker. The apparatus includes a push assembly mounted on the magazine assembly to engage the engagement portion of the marker when the marker is located in the push position. The push assembly pushes the marker from the push position of the magazine assembly when the push assembly is actuated. | 11-04-2010 |
| 20100147919 | Hand-held drive-in tool - A hand-held drive-in tool for fastening elements, having a drive system for a drive-in ram that is displaceably guided in a guide, and that has at least one drive spring element for the drive-in ram that is tensionable by a tensioning device, which is designed as a coil spring and defines a spring axis. A force-application element, which has at least one force-application portion, is fixed in torque-transmitting engagement to at least one end of the drive spring element. | 06-17-2010 |
| 20100140316 | Fastener Driving Tool - A fastener driving tool providing a prolonged durability and stabilized fastener driving operation. The tool includes a housing | 06-10-2010 |
| 20090114698 | SPRING ACTUATED PLIERS STAPLER - A spring-energized stapler having a pliers type configuration, wherein papers and like items are fastened at a front end and the stapler is normally gripped and squeezed at a rear end. A compact mechanism and independent handle linkages provide a compact overall shape in a high efficiency action. An upper handle is pivoted at a front, top of a housing with a pressing area spaced at least one half the handle length away from the upper handle pivot. A lower handle includes a multi-segment cam link to a base to provide a minimal gripping distance with a large clamping force at an anvil. A simplified front-loading mechanism provides a compact, low cost assembly. A release latch holder is located behind the striker for a compact front end. | 05-07-2009 |
| 20120132692 | HIGH-START SPRING ENERGIZED STAPLER - A spring energized stapler includes a “high start” design wherein a striker has a rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move farther than the striker's distance of travel. The handle includes a movable pivot location to enable enhanced motion of the handle pressing end. Alternatively, an optional lever links the striker to the power spring to provide leverage upon the power spring. A release latch may be mounted in front of the striker to be engaged by the lever or the handle. | 05-31-2012 |
| 20110049214 | Light weight hand-operated stapler - A light weight hand-operated stapler which comprises a pressing cap, a plastic head, a metal drive plate, a base and a plastic magazine which is connected to the base via a hanger and connected to the plastic head via a pin, a metal guide head disposed at a front end of the plastic magazine and substantially covering the front wall of the plastic magazine, a first elastic mechanism for pushing the staples down the plastic magazine to reload the stapler, a second elastic member disposed between the pressing cap and the plastic head for pushing the pressing cap up to its original position after stapling, and a third elastic member disposed between the base and the plastic magazine for pushing the plastic magazine up to its original position after stapling. | 03-03-2011 |
| 20110303728 | DRIVING DEVICE - According to one aspect of the application, a device for driving a fastening element into a substrate has an energy-transfer element for transferring energy to the fastening element. The energy-transfer element can move preferably between a starting position and a setting position, wherein the energy-transfer element is located, before a driving-in procedure, in the starting position and, after the driving-in procedure, in the setting position. | 12-15-2011 |
| 20110303727 | DRIVING DEVICE - According to one aspect of the application, a device for driving a fastening element into a substrate has an energy-transfer element for transferring energy to the fastening element. The energy-transfer element can move preferably between a starting position and a setting position, wherein the energy-transfer element is located, before a driving-in procedure, in the starting position and, after the driving-in procedure, in the setting position. | 12-15-2011 |
| 20110303725 | DRIVING DEVICE - According to one aspect of the application, a device for driving a fastening element into a substrate has an energy-transfer element for transferring energy to the fastening element. The energy-transfer element can move preferably between a starting position and a setting position, wherein the energy-transfer element is located, before a driving-in procedure, in the starting position and, after the driving-in procedure, in the setting position. | 12-15-2011 |
| 20110303726 | DRIVING DEVICE - According to one aspect of the application, a device for driving a fastening element into a substrate has an energy-transfer element for transferring energy to the fastening element. The energy-transfer element can move preferably between a starting position and a setting position, wherein the energy-transfer element is located, before a driving-in procedure, in the starting position and, after the driving-in procedure, in the setting position. | 12-15-2011 |
| 20090134197 | MINI DESKTOP STAPLER - A miniature spring-actuated stapler includes a tapered, flat power spring to store energy and eject staples. The power spring pivots at a rear of the stapler housing and includes three co-extensive arms terminating near the striker. As the L-shaped handle of the stapler is pressed, it acts on the center arm of the power spring to deflect it downward while the outer arms deflect upward. The arms are integral at a rear end and the outer arms are linked to the striker at the front. A tapered, flat reset spring disposed generally parallel to the power spring is used to reset the internal action. The housing includes open top and rear areas with the handle providing the enclosure thereof. A base assembly is slidably attached at a bottom of the stapler with an open position exposing a staple-loading chamber. | 05-28-2009 |
| 20100012701 | Stapler with a leg-flatting device - A stapler has a supporting base, a magazine assembly, a trigger assembly and a leg-flatting device. The trigger assembly has a trigger lever and a pushing element. The pushing element is mounted pivotally on the trigger lever with a pivot and has two pushing arms extending toward the supporting base. The leg-flatting device is mounted on the supporting base and has a sliding base, a moving base and an anvil element. The sliding base is slidably mounted on the supporting base and has a pushed segment corresponding to and selectively pushed by the pushing arms. The moving base is selectively blocked by the sliding base to keep the moving base from moving downwardly before the sliding base sliding relative to the supporting base and has an elongated hole. The anvil element is mounted in the elongated hole in the moving base. | 01-21-2010 |
