Abstract: A tool, such as a knife or a surgical instrument, is disclosed having a sharp edge, a first end and a second end. A connecting member connects the second end of the member with a handle, wherein the connecting member connects the handle at a fixed angle between 24° and 46° relative to the sharp edge of the member.

Abstract: A tool for dislodging grout from a joint between two adjacent planar surfaces, or for removing a strip of material from a masonry surface including, a generally elongate body having a lower portion dimensioned to fit at least partially within a channel created by a first cutting tip of a first blade or edge, the first cutting tip forwardly facing for impinging upon and dislodging material, a guide forward of said first blade or edge for controlling the depth to which said first blade or edge penetrates said grout or said masonry surface, and a front portion of said tool being curved upwardly, said front portion including a second blade or edge having a leading secondary cutting tip, whereby the rear of the tool may be pivoted upward about the leading edge of said tool to utilise said secondary cutting tip to dislodge said material without being inhibited or obstructed by said guide.

Abstract: A safety brake system for a trailer comprises a brake end, an actuation end and a biasing unit. The brake end comprises a brake unit adapted to be secured to a trailer and positioned to block at least one wheel of the trailer when actuated. The actuation end comprises a mount adapted to be secured to a front end of the trailer and a probe operatively supported by the mount for displacement with respect to the trailer. The probe is operatively connected to the brake unit for actuating same. The probe is displaceable between a hitching state in which the probe is adapted to contact the hitch of a vehicle, and a braking state in which the probe actuates the brake unit. The biasing unit biases the probe against the hitch of the trailer in the hitching state and toward the braking state, such that the brake unit is actuated when the hitch is separated from the trailer.

Abstract: Handle configurations are disclosed for powered implements having a shaft, allowing the implements to be holdable by both hands of a user. An exemplary implement has an elongated shaft having first and second end portions. A first handhold is adjustably mounted to the shaft and extends outwardly therefrom. A second handhold is adjustably mounted either to the shaft or to an elongated member coupled to the shaft. The elongated member can include a mounting portion and a handle portion providing the second handhold. The mounting portion mounts to the first end portion at a mounting location. The first and second handholds allow operation of the implement by a user with arms in respective neutral arm positions and hands in respective neutral gripping positions. The elongated member allows transmission of a force applied to the second handhold by the user through the elongated member and to the elongated shaft at the mounting location.

Abstract: Saws including saws configured to allow change in a width, a direction, and a curvature of a cut during a cutting operation are described. The saws include a saw blade, the saw blade being flexible along a longitudinal axis of the saw blade and inflexible along a vertical axis of the saw blade. The saw blade includes a blade body, and a plurality of cutting teeth, the plurality of cutting teeth being disposed on an upper cutting edge of the blade and a lower cutting edge of the blade body. In some examples, the saw blade is configured to be flexed by manipulation of at least two articulating points on the saw blade during the cutting operation to change one or more of the kerf, the direction, and the curvature of the cut.

Abstract: A handle having improved ergonomics and relatively compact low cost design is provided. In particular, the handle may include two hand grip areas which may be integral with one another. The two hand grips may be approximately perpendicular to one another. Further, one or both of the grip areas may include grip alignment mechanisms that improve the ergonomic alignment of a persons hand on the hand grip area of the handle. In another aspect the hand grip(s) may have smooth rounded grasping surfaces to provide comfort when grasped by a hand. The alignment mechanism(s) may be placed at an optimal location on the hand grip(s) area and result in improved control and comfort during use. In addition, one of the alignment mechanisms may serve a dual purpose of hand alignment and as a stop that prevents a person's hand from slipping off of the grip area during use.

Abstract: A chainsaw that increases the level of operator safety by reducing or eliminating cut through and kickback injuries without impeding cutting operations, and increases operator comfort through ergonomics, therefore extending stamina. This is accomplished by a dual stage multi-hinged bar device that physically inhibits kickback and cut through injuries. The device, which returns to it's original position after cutting, will open up a total of 88 degrees to allow for cutting of items that are larger than the length of the guide bar. Relocation of the handles leads users toward physically holding the saw in such a manner that creates an ergonomically advantageous body position, reducing fatigue and strains. The body of the saw and the bar device will rotate 45 and 90 degrees both right and left while the handles and operators grip remain in the same position. The chainsaw also incorporates an easy to use chain adjustment.

Abstract: A chainsaw that increases the level of operator safety by reducing or eliminating cut through and kickback injuries without impeding cutting operations, and increases operator comfort through ergonomics, therefore extending stamina. This is accomplished by a dual stage multi-hinged bar device that physically inhibits kickback and cut through injuries. The device, which returns to it's original position after cutting, will open up a total of 88 degrees to allow for cutting of items that are larger than the length of the guide bar. Relocation of the handles leads users toward physically holding the saw in such a manner that creates an ergonomically advantageous body position, reducing fatigue and strains. The body of the saw and the bar device will rotate 45 and 90 degrees both right and left while the operators grip on the saw remain in the same position. The chainsaw also incorporates an easy to use chain adjustment.

Abstract: A hand-held power tool has a motor housing with drive motor and a grip housing with a longitudinal support and a forward grip. The motor housing and the grip housing are connected to one another by antivibration elements. The forward grip has a connecting end that is connected by a screw connection to the longitudinal support. The screw connection has at least one fastening screw that is positioned in the operating position of the power tool in a vertical direction of the power tool. The screw connection has a metal insertion part that is positioned entirely within the contour of the longitudinal support that is a plastic part. The metal insertion part has a screw receptacle for the at least one fastening screw. The at least one fastening screw is fixedly screwed into the metal insertion part.

Abstract: A cutting implement with blades that can be replaced or interchanged without using tools. The cutting implement has shock absorbing handles and may also have at least one bumper to reduce the forces transmitted to the user's hands and arms. The cutting implement may be a saw, pruners, lopper, grass shears, hedge shears, or garden shears.

Abstract: A hand-held power tool has a motor housing with drive motor and a grip housing with a longitudinal support and a forward grip. The motor housing and the grip housing are connected to one another by antivibration elements. The forward grip has a connecting end that is connected by a screw connection to the longitudinal support. The screw connection has at least one fastening screw that is positioned in the operating position of the power tool in a vertical direction of the power tool. The screw connection has a metal insertion part that is positioned entirely within the contour of the longitudinal support that is a plastic part. The metal insertion part has a screw receptacle for the at least one fastening screw. The at least one fastening screw is fixedly screwed into the metal insertion part.

Abstract: A hand-held circular saw (10) includes a housing (11); a drive (13) located in the housing for driving a circular saw blade (12), a cover element (15) for at least partially covering a working space (14) for the circular saw blade (12) and which defines a working plane (W), first and second main handles (21, 22) located opposite each other, and first and second switches (23, 24) provided on the first and second main handles (21, 22) respectively, for turning the drive (13) on and off.

Abstract: An electric hand power tool has a housing, an air-cooled electric motor which is accommodated in the housing, a tool which is driven by the electric motor a protective hood which at least partially covers the tool, the housing having a handle and an auxiliary handle for a two-hand guidance of the hand power tool, the auxiliary handle being positioned in a plane transverse to a plane of the first-mentioned handle and, with reference to a work direction, before the first-mentioned handle, the auxiliary handle being completely hollow and having an inlet communicating with the protective hood so as to carry motor cooling air which has left the housing and passed the protective hood for the tool and then flows into the inlet of the auxiliary handle carrying debris and through the auxiliary handle and out of the latter, so that the auxiliary handle is operative for damping a flow noise of the air from the electric motor, from a motor-cooling fan and from the tool.

Abstract: A power tool (10) comprises a main body (12) having a motor driven tool (24) extending from a first front end of the main body, and has a first handle (18) integrally formed on the main body to be remote from this front end. A second support handle (20) is pivotally mounted on the tool body (12) to be pivotally displaceable about a pivot axis (34) so as to be displaceable from a first position in which a grip (22) of the support handle is disposed forwards of the first handle (18), to a second position wherein the grip member (22) is disposed rearwardly of the first handle (18). Also disclosed is the use of restraining means engageable between the support handle (20) and the main body (12) for releasably restraining the handle in either of the first or second positions.

Abstract: A power tool includes a motor, a housing forming a handle, and a power switch disposed within the handle operatively associated with the motor. The power switch is movable between “on” and “off” positions via a trigger. The trigger is pivotable about a first axis. A lock-out link is pivotably attached to the housing. The lock-out link is movable between a first position contacting the power switch for preventing movement of the power switch to the “on” position, and a second position not contacting the power switch, allowing movement of the power switch to the “on” position. The lock-out link pivots between the first and second positions about a second axis non-parallel to the first axis. In addition, a first button is disposed on the housing for moving the lock-out link between the first and second positions.

Abstract: A portable work apparatus, especially a motor-driven chain saw (1), has a drive unit which is provided with a handle housing (3). The handle housing (3) includes an extension (9) which extends in the longitudinal direction of the work apparatus from a rearward handle (8) on the side facing away in the longitudinal direction from a guide bar (6) forward to the side facing toward the guide bar (6). The handle housing (3) is connected via antivibration elements to the drive unit. The work apparatus has a forward handle tube (4), which extends over the work apparatus transversely to the longitudinal direction and is attached with an end (10) to the free end of the extension (9) and with the other end (27) in the area of the rearward handle (8). At least one of the ends (10, 27) of the handle tube (4) is fixed via an antivibration element (11, 25, 26, 28, 34).

Abstract: A string cutter includes two handles, two fixing devices, and a cutting string. The cutting string has two ends each secured on the respective handle by the respective fixing device. Each of the two handles includes a loop-shaped handgrip for insertion and holding of a user's fingers. The handgrip has two sides each provided with a protection rib, for encompassing and protecting the user's fingers received in the handgrip. Thus, when the cutting string is broken due to wear or excessive pull and is sprung toward thehandles, the broken cutting string will be blocked and stopped by the protection rib of each of the two handles, thereby efficiently preventing the broken cutting string from injuring the user's fingers, so as to protect the user's safety.

Abstract: A plastic handle member for manually guided power chain saws is provided. The handle member comprises a one-piece, at least partially tubular, front handle for holding a separate motor unit, the front handle being provided with a lower profiled bar. A rear control handle is provided having an upper portion for accommodating components for controlling a chain saw. A support member is disposed between the front handle and the control handle for interconnecting them. The front handle, the rear control handle, and the support member comprise a one-piece plastic body made of a single material and in conjunction with the lowered profile bar form a self-contained force polygon that absorbs load and vibrational forces by means of vibration-damping elements provided in supports disposed between the handle member and a housing of the separate motor unit for holding the housing of the motor unit.

Abstract: A wild game dressing tool that is light in weight and small in size, comprising two handles connected by a saw blade for field dressing a deer or the like: the tool offers a quick, safe, and easy way to split an animal's pelvic bone, allowing better cleaning of the anal area and thereby resulting in more consistent, high quality meat.

Abstract: A novel saw is disclosed having novel dimensions and tooth pattern for the saw to cut efficiently through bone and wood. The saw includes a plurality of teeth disposed upon the cutting edge of the saw blades. The teeth are set with a bevel of about 3.degree. to 15.degree. and with two steps of about 1/4 to 1/8 inch and with a spacing of tip-to-tip between continguous teeth of about 1/8 to 3/8 inch. The blade is selected of material having dimension and hardness for the blade to yield to bend in a generally semicircular bend.

Abstract: A device in power driven hand tools, preferably chain saws having a grip handle, and a bow handle mounted on top of the tool body. The grip handle is mounted for rotational movement about its support shaft. The bow handle is arranged to be pivoted around the tool body.