Abstract: A hand knife tool has alignment markings configured on its blade to help orientate the cutting edge of the knife tool across a workpiece to make a miter cut. A transverse axis is defined perpendicular to a substantially straight middle section of the cutting edge and bisecting the two faces of the knife blade. Each alignment marking is configured on the knife blade at an angle relative to the transverse axis. Each of the alignment markings visually delineate an alignment line substantially across the knife blade between the cutting edge and the blade back. When one of the alignment markings on the knife tool is aligned to the edge of a workpiece, it places the cutting edge of the knife tool across the workpiece at a substantially congruent angle. Then the knife can be pivoted upon its edge and then make a miter cut.
Abstract: A utility tool comprises a plurality of separate tools or implements mounted within a single light-weight housing. The tool includes a retractable knife blade and a retractable saw blade which are extendable from one end thereof each under control of a particular locking knob. The knob includes spring mechanism which engages teeth along slots on the side of the housing. A level and a detachable tape measure are mounted on the other end of the housing with a pencil force fit between grips on the upper edge of the tool.
Abstract: A motorized tool allows one or more operations to be performed on a workpiece, such as cutting and/or conditioning a surface of a pipe or a pipe fitting or receptacle. The motorized tool includes a cutter and/or one or more rotatably driven accessories, such as workpiece surface conditioners or brushes. The motorized tool further includes a drive mechanism used to rotate the workpiece against the cutter and to rotate the rotatably driven accessories. In one example, the drive mechanism rotates drive rollers that contact a workpiece and rotates the workpiece against a cutting element or edge of the cutter. In another example, the motorized tool includes an internal workpiece surface conditioner and an external workpiece surface conditioner that are also rotated by the drive mechanism to clean, debur or otherwise condition internal and external workpiece surfaces. The motorized tool can be hand-held or hand-operated and includes opposing pivotable members having handle portions.
Abstract: A combination handsaw providing one of a plurality of blades. A pair of blade housings are pivoted together at one end, supporting first and second blades of different types for cutting. The blade housings receive each of the blades in a retracted, non-cutting position, and permit deployment of the blades out one end of each respective housing for cutting operations. A utility knife is contained in one end of the housings, permitting yet another cutting blade or a single device.
March 9, 1990
Date of Patent:
June 18, 1991
Robert Pape, William Rose, Frank Burgel, Chip Adams
Abstract: A kitchen appliance including a cap-gripper and a can-opener actuated by the same motor. The cap-gripper includes relatively movable jaws which are moved by a screw driven by the motor which is automatically stopped when the jaws come together. The can-opener is driven directly by the motor but a clutch is provided for interrupting the drive to the screw each time the can-opener is selectively actuated.