89results about "Hand chisels" patented technology

A chisel with a bi-material blade comprising a main body of low grade steel and a cutting portion of higher grade steel. The cutting portion of higher grade steel provides longer life and decreases the need for frequent sharpening. The main body and cutting portion are connected using an arcuate interface. Additionally, the main body and cutting portion may have a radiussed cross-sectional connection. The arcuate interface and radiussed cross-section help absorb the shear and impact forces applied to the tool.

A chisel according to the present technology has a reduced tendency to jam in a substrate. The chisel is on an axis in the striking direction with successively a striking surface, a shank, a spreading element and a tip. The spreading element has multiple ribs around the axis extending along the axis 2. The ribs each have a wave shape formed through a tangential deflection with respect to the axis.

The invention is directed to a hand tool for cutting shavings from the surface of a workpiece of wood (or other workable material) to shape and make smooth any three-dimensional surface having concave, flat, and/or convex contours. The thickness of the shavings is modulated by the angular relationship and distance between a blade and a regulating post. An embodiment comprises a combination body and handle holding a protruding cutting blade at an angle of about 30° to the surface of the workpiece, and an adjustable protruding post in front of the cutting edge to limit the effective exposure of the cutting edge as the tool is moved into contact with the workpiece. The embodiments provide a full view of the cutting zone and unrestricted one-hand use on surfaces of any contour.

A multi-function tool having a handle portion and a plurality of structures operable therewith for the performance of a plurality of functions. The multi-function tool allows fast and convenient transition between any of the plurality of functions in order to enable completion of jobs or tasks requiring such functions without acquisition, storage, and/or maintenance of a plurality of specialized tools.

A chisel with interchangeable blade has a handle, a holding device and a blade. The handle has two ends and a device hole. The device hole is defined in one end of the handle. The holding device is securely mounted in the device hole and has a body. The body is securely mounted in and protrudes out from the device hole and has a connecting end and a connecting hole. The connecting end protrudes out from the device hole. The connecting hole is defined in the connecting end of the body and has a cross section. The blade is detachably mounted on the holding device and has a connecting tang. The connecting tang is detachably mounted in the connecting hole and has a cross section corresponding to that of the connecting hole.

The invention is essentially a tool device which is a combination of components, features and functions, including knife, chisel, scrapper, ruler, depth gage, and straight edge, housed in one easily handled and transported unit.

The present invention is directed to a tool for de-laminating two or more bonded material layers wherein two simultaneous force vectors are applied to the tool so as to control the resulting effect of the tool. In particular, the tool is comprised of a handle, a shaft having a proximal and a distal end, a working face, and a strike plate. The handle is connected to the proximal end of the shaft wherein the shaft has a finite length. At the distal end of the shaft is a working face which may be either integral to the shaft or is a separate element which is durably attached to the shaft. At a point on the shaft between the proximal or handle end, and the distal or working face end, a strike plate is durably attached to the shaft. The strike plate is configured to receiving repeated impact by a drive source.

A tool includes a handle, a controller and a bit. The handle includes a socket defining an axial non-circular space and a radial space in communication with the axial space. The controller includes a space defined therein and a ridge formed on the wall of the space thereof. The controller is movable in the radial space of socket between a locking position and a releasing position. The bit includes a working tip and a shank defining at least one recess for receiving the ridge when the shank is inserted into the space of the controller through the axial space of the socket, thus locking the bit to the handle.

The invention is a tool to be struck, or a striking tool, (collectively referred to as an "impact tool"), or alternatively, a cap, that will not suffer metal spall and the attendant dangers of spalling and flying or cutting metal slivers. The preferred mode is on a chisel (wood or cold) or repeated impact tool. The chisel would have a striking end cut square to the shaft. The striking end would be opposite the working end. Other tools such as impact wrenches, jackhammers, wedges, spikes, hammers, mallets or other tools being struck or striking forcibly benefit from the invention by use of a disk insert of polymeric material to alter ergonomic and noise characteristic.

A scraper for removing nail heads and other debris from a surface which comprises a handle, a weighted cutting head and a mechanism for attaching the handle to the weighted cutting head. When a hand of a user grasps the handle and the weighted cutting head is moved upon the surface, sufficient momentum will be provided to easily scrape away nail heads and other debris with little effort.

A de-icicling tool has an icicle removing head mounted onto the distal end of an elongated handle. The head is formed of a generally flat blade and a mounting sleeve to that fits onto the distal end of the handle. The blade member has a series of triangular teeth in a concave arc along the front with each tooth having a point and beveled edges which meet at the associated point. The points of the teeth are rounded. The blade has at least one generally triangular notch formed along its rear thereof, each notch having a pair of beveled edges. There is one or more one round aperture in the blade, each with a beveled edge and with a diameter of three to five centimeters. The mounting sleeve includes a threaded socket adapted to accept a male thread of a standard broom handle or paint pole.

A hand tool adapted to be used in the welding environment includes a handle and a head. The head includes a first end adapted to strike at and remove welding slag and a second end adapted to receive and retain a replaceable tip. The tip has two (2) opposable ends such that it can be reversed to extend the life thereof. The handle end, distal from the head, is operatively shaped to comprise a wedge and a pry surface.

The Ribbed Bar Angled Chisel Punch Set is a set of chisels designed with ribbed or textured handles so the user can grip the tool easier and better. The chisels are angled so that they can perform certain jobs and work in tight spots that ordinary straight shafted chisels cannot. The chisels have many functions. The chisels make it easier for the prying, cutting, punching, pulling and removing of small objects in a limited work space. The chisels in the set are all different and have flat tips, sharp tips, pointed tips, and blunt tips.