643results about "Crowbars" patented technology

An adjustable prying bar includes a prying head having an arcuate body, a flat tipped lower end a lug at upper end wherein the lug has a circular depression and an inverse stop ring on upper portion and inner thread on lower portion, a handle rotatably engaged with the upper end of the prying head having flat front end with a hexagon hole therein engaged within the lug of the prying head, and a checking mechanism including an upper cover, a lower cover, a hexagon plate and a spring separately engaged with the lug and the hexagon hole of the handle wherein the hexagon plate has a stop ring engageable with stop ring of the lug. Thereby, the angle between the prying head and the handle enables to adjust for larger or smaller than 90 degrees.

A multifunctional firefighter's tool has a head mounted on an elongated handle which is covered with an electrical and thermal insulator to minimize the occurrence of heat and electrical shocks to the user. An axe blade with a polygonal aperture sized to engage a typical gas valve is formed on one side of the head, the aperture having small bulbous cutouts at the vertices of the polygon. A cutout which is shaped as the mouth of a wrench is also formed at an edge of the head, the mouth defining two stepped surfaces to provide a multi-sized wrench. A spanner wrench sized for coupling and decoupling water hoses is formed on the other side of the head relative to the longitudinal axis of the handle, the spanner wrench being defined by a pry bar portion and a hook portion formed at an appropriate distance from the pry bar portion.

A hammer with integral lever mechanism is disclosed, comprised of a traditional handle and claw head. To increase leverage during nail removal and enable the user to remove longer nails with speed and ease, a lever is incorporated into the design of the device. The lever is T-shaped, and in its resting position is located inside of the head, so as to not interfere with use of the device when the lever is not needed. The lever can be rotated relative to the head by depressing a lever release button, to aid in nail removal . The lever is of ratchet style configuration, allowing the user to position the lever in a multitude of locations relative to the head, to assist in removing nails of various lengths. The lever is capable of being locked into position relative to the head at each of the lever's possible positions. A hand guard and finger grips permit the user to maintain a firm hold on the handle during use, thus reducing risk of injury. A retractable tape measure is incorporated into the design of the handle.

The invention provides a demolition utility tool that can be used in many ways for the demolition of materials and / or for the manipulation of clamps valves, nuts, or other hardware. The tool includes a handle having a head at one end. The head has a longitudinal central plane that bisects the head, a strike contact face, and toothed, stepped grasping jaws that accommodate multiple sizes of material. The demolition tool may include a fixed wrench element and / or a spanner wrench element on the head. The demolition tool may also include a bent end pry bar at a second end of the handle that is offset 90 degrees from the longitudinal central plane of the tool head enabling full range of motion without interfering with other tool functions. The bent end pry bar may include a slot between located between its forked end for manipulating gas shut-off valves.

A nail puller mounted on the side of the head of a hammer. The nail puller may be incorporated into a metal hammer head and consist of a groove mounted substantially in line with the handle of the hammer. The nail puller consists of a V-shaped opening suitable for engaging various sizes of nail heads or shanks. The nail puller is located on the side of the hammer, such that the nail is engaged when the hammer is laid nearly parallel to the work surface. The position of the nail puller gives the user nearly 180 degrees of rotation to remove the nail.

A tool for removal of an automotive window belt molding from a body member includes a formed hook on the end of a generally flat, rigid, elastically deformable planar sheet.

A frozen vehicle door puller comprising a key ring, a finger plate, an eyelet, a finger handle, a body, and a hook. Preferably, the finger handle is slightly larger in diameter than the body in order to provide a comfortable grip for the user's fingers, and the overall length of this embodiment from the finger plate to the end of the hook is in the range of five (5) to ten (10) centimeters. The frozen vehicle door puller is alternately comprised of a handle, a shaft, and one or more interchangeable hooks. Preferably, the overall length of this embodiment is between forty-five (45) and sixty (60) centimeters. In each embodiment, the hook is coated with silicone or rubber to prevent it from damaging the vehicle's paint. A method of using the frozen vehicle door pullers of the present invention to open a frozen vehicle door.

The present invention generally relates to firefighting tools, including multi-purpose firefighting tools that may incorporate the capabilities of axes, Halligan bars, K-tools, spike poles, flashlights, etc. The multi-purpose tool may include a removably securable inner shaft and an outer shaft configured to slidably receive the inner shaft. The tool may also include a housing and a locking mechanism. The inner and outer shafts may include various implements. The housing may be disposed on one of the ends of the outer shaft and may include a recess.

The invention provides a demolition tool that can be used in many ways for the demolition of construction materials or other materials. The demolition tool includes a handle having a head at one end. The head has a longitudinal central plane that bisects the head, a strike contact face, and toothed, stepped grasping jaws that accommodate multiple sizes of lumber or other material. The head may also include a blunt blade edge below the strike contact face for striking and demolishing material. The demolition tool includes a bent end pry bar at a second end of the handle. The bent end pry bar being offset 90 degrees from the longitudinal central plane of the tool head enabling full range of motion without interfering with other tool functions. The demolition tool may comprise a single piece of material and may be softer than tools used to strike it, but harder than materials which it is used to strike.

Disclosed and described herein is a nail extractor adapted for the powered extraction of partially exposed headed-nails from a substrate. The extractor has a housing with a threaded opening for the fitment of a threaded spindle having a hexagonally-shaped proximal end for the attachment of a power tool and a claw assembly attached to the distal end of the spindle so as to permit free rotation of the spindle while the claw assembly is confined and sized to prevent turning within the housing. Additionally, the claw assembly has a cleft for engaging and grasping the partially exposed portion of the headed nail. When activated by the powered tool, the threaded spindle and claw assembly are vertically elevated within the housing and the partially exposed nail is extracted from the substrate.

A tool head member being a nail extractor or molding remover having a striking surface on the end opposite the nail extractor / molding remover end or a pry bar, any of the foregoing tool head members being indexably coupled to a handle member. The indexable tool head allows the user to lockably index the tool head into a more desirable position for removing nails or molding.

A staple removal tool includes a working end with an enlarged area and forked portion. The forked portion includes two prongs separated by a substantially V-shaped slot, wherein the V-shaped slot includes a rounded junction. The working end tapers in thickness along two non-parallel planar surfaces that may include grooves set transversely to the longitudinal axis of the tool. A second embodiment of the staple removal tool includes a working end with both outwardly and inwardly curved exterior surfaces. The outwardly curved exterior surface leads to a prong. A blunted tine is separated from the prong by a substantially U-shaped slot that includes a rounded junction. The working end tapers along two non-parallel planar surfaces that may include grooves set transversely to the longitudinal axis of the tool. Methods of using the tools are also provided.

A multi-function tool has a shank body including a first end, a second end and a plurality of positioning grooves formed between the first and second ends thereof. A pry bar includes a connected section and a working section extending from a side of the connected section for pulling nails. A through-hole pierces the connected section for slidably receiving the shank body, with a second receptacle piercing the connected section and in communication with the through-hole. A clutch is disposed in the second receptacle for alternatively engaging with a selected one of the positioning grooves.

A motorcycle rear stand for lifting the rear end of a motorcycle having a rear end lift pivot member and supported on a kickstand having a frame with a pair of side support members, a stop surface at one end of the frame, a pivot mounted at different distances forwardly of the stop surface on each of the side members, a lift arm having a bike engagement member at its outer end mounted on the frame and projecting upwardly therefrom wherein pivotal movement of the frame simultaneously lifts the rear end of a motorcycle and levels the motorcycle from an initial leaning position.

A rotation control device for a tool is disposed between a handle and a tool head and includes two ratchet wheels, a spring and two C-shaped snap rings. The two ratchet wheels are symmetrically arranged. When pressed, the respective ratchet wheels will be subjected to the same force and move the same distance, thus making the engagement between the ratchet wheels and the tool head more assured, while avoiding the stuck fault and improving the convenience in use.

Disclosed and described herein is a nail extractor adapted for the powered extraction of partially exposed headed-nails from a substrate. The extractor has a housing with a threaded opening for the fitment of a threaded spindle having a hexagonally-shaped proximal end for the attachment of a power tool and a claw assembly attached to the distal end of the spindle so as to permit free rotation of the spindle while the claw assembly is confined and sized to prevent turning within the housing. Additionally, the claw assembly has a cleft for engaging and grasping the partially exposed portion of the headed nail. When activated by the powered tool, the threaded spindle and claw assembly are vertically elevated within the housing and the partially exposed nail is extracted from the substrate.

A hand tool is disclosed for extracting a fastener from a material. The hand tool includes a pair of elongate members joined by a pivot to form a pair of jaws and a pair of handles. The pair of jaws are operated by moving the pair of handles relative to one another, and have teeth adapted for gripping a portion of the fastener. Each of the elongate members is curved longitudinally in a plane including an axis of the pivot such that when the fastener is gripped in the pair of jaws, a force applied to the handles tends to extract the fastener from the material while minimizing damage to the material.