Patent application number | Description | Published |
20090200091 | Track Connection System for Mobile Vehicles, Including Lift Cranes - A crawler has a track connection system. The crawler includes a crawler frame; at least one drive tumbler supported on the frame; a track made of a plurality of track shoes connected in series to produce a track having a first end and second end that can be connected together to form the track into an endless track. The track is wrapped around the frame, with the first and second ends spaced apart but each adjacent a section of the frame. The track connection system is mounted to the frame and includes a mover device connected to the frame; and a track engagement member coupled between the mover device and the track; iii) whereby actuation of the mover device causes the track engagement member to move the track into a position where the first and second ends can be connected. | 08-13-2009 |
20090200860 | Drive Tumbler and Track Drive for Mobile Vehicles, Including Lift Cranes - A combination of a drive tumbler and a track includes a track made of a plurality of connected track shoes and a plurality of driven surfaces. The track is wrapped around the drive tumbler so that a plurality of the shoes are in contact with the drive tumbler. The drive tumbler has a plurality of drive surfaces and a circumferential rim surface that includes a plurality of shoe contact surfaces that each contact the inside surface of one of the track shoes that are in contact with the tumbler. The shoe contact surface has a shape such that a line normal to the tangent of the shoe contact surface does not pass through the axis of rotation of the drive tumbler, thereby allowing the shoe contact surfaces on the rim of the drive tumbler to transmit a tractive force to the track. A preferred drive tumbler comprises a center hub and a plurality of individual tooth members connected to the center hub by welds. | 08-13-2009 |
20090200861 | Track Tensioning System For Mobile Vehicles, Including Lift Cranes - A crawler has a track tensioning system. The crawler includes a crawler frame having a bottom; at least one drive tumbler supported on the frame; a track made of a plurality of connected track shoes and is wrapped around the drive tumbler so that a plurality of the shoes are in contact with the drive tumbler. The track tensioning system, mounted to the frame, includes a roller engaging the inside surface of the track; and a roller positioning structure attached to the frame that can raise the roller relative to the bottom of the frame to thereby increase the tension of the track. | 08-13-2009 |
Patent application number | Description | Published |
20080298916 | REPLACEABLE TIP FOR A BIT OR AUGER BIT - Tool elements, such as, bits, auger bits, concrete bits, etc. are provided. The tool elements include a body and a cutting element removably connected to the body. The cutting element may be removably connected to the body in a variety of manners. The body and the cutting element may be made from a similar material or from different materials. The tool element may also include a second cutting element removably connected to the body or to the first cutting element. In some aspects, the second cutting element is a feed screw. In other aspects, the second cutting element is a continuation of the first cutting element. | 12-04-2008 |
20100053943 | ELECTRICAL COMPONENT, SUCH AS A LIGHTING UNIT AND BATTERY CHARGER ASSEMBLY - An apparatus includes a housing including an AC power input and a power tool battery port adapted to receive a power tool battery pack. A light body includes an illumination portion operable to emit light. The illumination portion is movably coupled to the housing such that the illumination portion is movable between an open position and a closed position in which the housing blocks the emitted light. A circuit includes a battery charger portion. The circuit is operable when AC power is available at the AC power input to direct AC power from the AC power input to the battery charger portion and from the battery charger portion to the power tool battery port to charge the power tool battery pack and to direct AC power to the illumination portion to emit the light. When AC power is not available, the circuit directs power from the power tool battery pack to the illumination portion to emit the light. | 03-04-2010 |
20110188955 | REPLACEABLE TIP FOR A BIT OR AUGER BIT - A tool element for cutting a workpiece includes a body including a shank for connecting the tool element to a power tool, a first cutting portion formed as part of the body and defining a first removing pattern, and a cutting element removably coupled to the body and including a second cutting portion defining a second removing pattern, the second removing pattern being a substantial continuation of the first removing pattern. | 08-04-2011 |
20110291617 | ELECTRICAL COMPONENT INCLUDING A BATTERY CHARGER ASSEMBLY - An electrical assembly selectively receives power from an external power supply. The electrical assembly includes a base that at least partially defines a tool port and a battery port and an electrical tool selectively coupled to the tool port. A rechargeable battery pack is selectively coupled to the battery port and a circuit is supported by the base and is operable to direct power to the tool port and the battery port such that the external power provides power to the electrical tool to operate the electrical tool and to recharge the rechargeable battery pack. | 12-01-2011 |