52results about "File" patented technology

An improved concave rasp that can be used to smooth any concave surface, such as under a hoof, having a handle approximately perpendicularly affixed at about the middle of a rasp that is convex both along its length and in cross section. The underside of the rasp has a rounded end, thus being suitable for applying pressure there against. Another embodiment of the invention is an improved tooth design, comprising a tooth blade, rather than individual teeth, thus providing much increased biting edge with increased durability.

An improved hand rasp comprises a planar plate with an anterior surface and an opposing posterior surface. An ergonomic handle is affixed to the anterior surface of the plate. A groove blade is removably affixed to the posterior surface of the plate by attachment means. The groove blade may have a variety of geometric configurations and varying in width and depth to accommodate the imagination of the user or designer. The groove blade includes an abrasive surface on the exterior surface of the groove blade. A guide is also removably affixed to the posterior surface of the plate by attachment means, positioned parallel to the groove blade. The guide is adjustable about apertures formed in the plate to position the guide closer to or farther away from the groove blade.

A wallboard rasp having an expanded metal blade mounted to a molded plastic handle. The handle is configured with a downwardly-opening receiving groove for receipt of an upwardly-curved perimeter portion of the blade. Sections of the blade's perimeter may be crimped or heat staked within the groove. The groove may be formed between a downwardly-projecting outer lip and one or more downwardly-projecting inner ribs. Where the blade is formed with a substantially planar central portion, the ribs may have substantially planar downwardly-facing surfaces against which the blade's central portion may be supported when mounted on the handle. The grip portion of the handle is configured as a contoured, upwardly-extending body having a base with opposite knurled inset surfaces and a convex top flanged surface with spaced-apart grip ribs.

An abrasive article having a multi-directional abrasion protrusion according to an exemplary embodiment of the present invention includes a flexible base substrate, and a plurality of abrasion protrusions integrally molded with the base substrate and having at least three sides forming a triangle, in which a plurality of abrasion protrusions has a directional property by grouping.

According to this constitution, loading resistance and durability are excellent, there are no attachment materials attached to an abraded surface in the case where a flat surface is abraded, abrasion can be efficiently and evenly performed in a predetermined shape even though abrasion particles are not enlarged to perform abrasion or abrasion is not repeated several times by using particulates, and abrasion performance can be improved.

A rasp that has a mounting plate with a number of debris vent ports formed in it. The debris vent ports are formed to allow dust and debris to escape, thereby eliminating a hydroplaning effect on the abrasive surfaces while using the rasp, as well as making the tool lighter. A number of sharp pointed screws are screwed into the plate so that the points extend below the base of the plate. The screw tips become the abrasive rasping surface. The screws can be turned in or out to raise or lower the tips, to change the amount of rasping action from fine to aggressive. The screws can also be easily removed when they become worn so that the abrasive surface is always uniform and fresh. Finally, unlike the other tools, the screws can be removed to clean the base of the plate thoroughly to remove dried or caked mud.

A hand operated file is provided with a thin ceramic coating of a transition metal nitride, such as vanadium nitride and/or zirconium nitride, on its teeth. The coating may be 20 um or less, thereby not altering the macro dimensions of the file. The coating may be applied using a vapor deposition process such as physical vapor deposition, and advantageously via a physical vapor deposition process where the file body does not exceed a temperature of about 300° F. The coating helps prevent galling, thereby increasing the useful life of the file.

A preformed continuous or interrupted shearing machining edges that are composed of hard substance grits and are brazed together and to steel grinding wheels or other tool members. The parallel edges may be interrupted by voids between teeth of the edges. The edges have selectable edge rakes and clearance angles, edge tooth widths, edge spacing and mounting angles to the tool members or grinding wheel work surfaces.

A rasp includes a body including upper, lower, front and rear portions. The lower portion has a groove that has first and second sections extending along a length thereof. The first section includes equidistantly spaced coextensive cutting blades extending downwardly therefrom. The blades have front and rear surfaces that have a rectangular shape engageable along a portion of drywall. The second section includes randomly spaced protrusions that have arcuate shapes and extend downwardly therefrom. The protrusions are engageable with drywall for removing imperfections therefrom. A divider bifurcates the first and second sections and extends downwardly from the body. The divider has a height equal to that of the sidewalls. Coextensive sidewalls are conjoined with the body and oppositely spaced from the divider. The sidewalls protrude downwardly from the bottom surface and terminate coplanar with the divider. The first and second sections are recessed from the divider and the sidewalls.

The present invention is a finishing plate and method of fabricating a finishing plate. The finishing plate can be fabricated to various shapes, and can be used with various surfacing machines. In a preferred mode, the present invention is a disc cutting plate which can be used with a random orbital sander, and can be used to replace traditional abrasive sheets such as sandpaper. The present invention can be used in smoothing various materials including wood, painted wood, plastic, and various metals.

The mini drawknife body has one or more fixing openings which allow its assembly in the adjacency of the support periphery; from the notched rim, the body extends briefly right across until reaching such a width that the rim opposite to the notched rim cannot interfere with the openings and assembly bolts on the support. The invention also refers to an adaptation device for the assembly of the mini drawknife in a rotary support for tires roughing. This adaptation device comprises fixing sets integrated by bases and lateral retaining covers, among which intermediate separators can be placed; all these means have fixing members and openings which, in addition to forming jaws in the joint area, fasten to the roughing drawknives passing through some fastening openings of their body.

A sharpener for an ice screw with a tubular shank and a bit, comprising:

• • a fixed sharpening support equipped with a file in the form of an elongate blade,
  • a positioning slide of the ice screw at predefined angles with respect to the file, said slide being able to move in translation astride the two opposite surfaces of the file,
  • and guiding and stopping means of the bit in the slide comprising at least one opening for inserting the shank and a securing stud salient from the associated opening.

The auxiliary hand grip attaches to a conventional rasp to provide the user with an additional grip, allowing the user to better control the rasp when used to reconfigure a hoof. The auxiliary hand grip has a plate affixed to a socket element, the socket element extending along an axis and the plate extending substantially normal to the axis. The socket has inner surfaces spaced to accept a distal end extension of the rasp, and is aligned with the rasp so as to align the axis of the auxiliary hand grip with a longitudinal axis of the rasp. Clamping elements such as set screws extending through the socket serve to affix the auxiliary hand grip onto the distal end extension of the rasp.

The present invention discloses a fixture (100) configured to file a chain (202) of a chain saw. The fixture (100) includes at least one pair of flanges (102A, 102B), wherein each flange of the at least one pair of flanges (102A, 102B) has a first end (104A, 104B) and a second end (106A, 106B). Further, a first connecting portion (111) connects the flanges (102A, 102B) at their first ends (104A, 104B), and a second connecting portion (113) connects the flanges (102A, 102B) at their second ends (106A, 106B). Further, the first connecting portion (111) includes a pair of counter holds (112, 114) configured to provide area contact with a guide bar (208) of the chain saw. The fixture (100) also includes a cam portion (116) pivotally coupled to the second connecting portion (113), wherein the cam portion (116) and at least one of the counter holds (112, 114) simultaneously secure the fixture (100) to the guide bar (208).

A file guide is provided having a tubular handle, a spindle, and a retainer. The tubular handle has a central bore with an inner bearing surface and an outer gripping surface. The spindle has a cylindrical outer bearing surface configured to mate in complementary, rotatable relation with the inner bearing surface of the handle, a head at a proximal end, a lock portion at a distal end, and a central receptacle configured to receive a file shank. The retainer has an inner surface with a complementary lock portion configured to interlock with the lock portion of the spindle