9977 results about "Knife blades" patented technology

A cutting device includes a base plate, a motor attached to the base plate, a driving cord including a first end and a second end, the first end being attached to the motor, and a cutting assembly. The cutting assembly includes a fixed blade that is fixed to the base plate, and a driven blade that moves with respect to the fixed blade. The second end of the driving cord is attached to the driven blade to move the driven blade with respect to the fixed blade when the motor rotates.

The present invention relates to a shear-foil-type cutter system for an electric shaver, said cutter system including an upper cutter having at least one field of perforations and a lower cutter pressed against said upper cutter having a particular dense blade geometry of the lower cutter and large overlap angle with the upper cutter,

A bedding clip is provided that includes a pair of bodies that are substantially identical, each having a blade portion and a handle portion, with a hinge assembly formed on a front face of the blade portion that engages the hinge assembly of the other of the pair of bodies to form a working hinge configured to permit the one body to rotate about the working hinge relative to the other between an open and a closed position. Latching elements formed on the handle portions of the bodies engage each other in the closed position and pluralities of teeth formed the blade portions interleave while in the closed position. The bedding clip is sized and configured to be attached to bedding and to prevent the bedding from becoming untucked from a bed during use.

A rotatable tool which may include a blade, handle, a multi-positional radially rotating placement system, a spring bias lock mechanism, and a user activated unlock mechanism, and the like. Methods of use thereof by a user or other persons, possibly for instances such as self-defense, survival, cutting, perforating, slicing, sawing, chopping, tradecraft, or the like are also included.

A blade includes a body having a cutting portion with an edge and a plurality of cutting teeth sequentially aligned along the edge. Each cutting tooth of the plurality of cutting teeth is formed from a corresponding one of a plurality of carbide inserts that is discretely resistance welded to the edge. The body includes at least 15 teeth per inch.

The invention discloses a method and tool capable of improving the glue joint quality of a sharp corner area of a composite workpiece, and relates to the technical field of composite workpiece machining. The method comprises the following steps of prefabricating the corner filler, notching the corner filler, pre-filling a sharp corner area, assembling and curing. The tool comprises two R positioning plates which are arranged in an overlapped mode, the upper edges of the opposite faces of the two R positioning plates are matched with the side walls of the two sides of the finished corner filler respectively, a blade clamped and fixed through the R positioning plates is vertically arranged between the two R positioning plates, and the upper end of the blade extends to the positions above the upper edges of the opposite faces of the two R positioning plates. According to the method and the tool capable of improving the glue joint quality of the sharp corner area of the composite material workpiece, the sharp corner area is ensured to be fully filled by optimizing the shape of the corner filling material and a pretreatment process, so that cavities are thoroughly eliminated, and the glue joint quality and reliability of the sharp corner area of the composite material workpiece are improved.

A representative system for preparing a field for planting includes: first disk blades, each exhibiting a first offset angle with respect to a tilling direction; second blades, each exhibiting a second offset angle with respect to the tilling direction; ripper shanks disposed behind the second disk blades; third disk blades disposed behind the ripper shanks, each exhibiting a third offset angle with respect to the tilling direction; fourth disk blades, each exhibiting a fourth offset angle with respect to the tilling direction; and a chopper reel disposed behind the fourth disk blades; wherein, with respect to magnitude, each of the first offset angle and the second offset angle is greater than each of the third offset angle and the fourth offset angle.

A razor cartridge may include a plurality of razor blades installed in one direction of a cartridge frame, and a trimmer installed in the other direction of the cartridge frame. The trimmer may include a trimming blade seated in a seating groove formed in the cartridge frame, and a trimmer cap coupled to both sides of the cartridge frame so that the trimming blade is fixed.

A material penetrating tool includes a shaft portion defining a central axis, and an enlarged cutting portion extending downwardly axially from the shaft portion. The enlarged cutting portion includes a rearward blunt surface, a front cutting surface, a first side surface and a second side surface, and the first side surface and the second side surface define an angle of extension measured in a plane perpendicular to the central axis, forming a wider forward cutting surface than the rearward blunt surface in a plane perpendicular to the central axis.

A tool for tensioning and severing a cable tie comprising, inter alia, a reel magazine assembly, configured to retainingly receive at least one cable strap reel and provide for a spring-biased rotation of said at least one cable strap reel about a cable strap reel center axis, wherein said spring-biased rotation is directed so as to wind up a cable tie strap coiled up onto said cable strap reel; a feeder guide mechanism, provided within said barrel portion, configured to guidingly receive an end portion of said cable tie strap of said cable strap reel and move said cable tie strap from said cable strap reel through said barrel portion towards said distal housing end portion, but prevent movement of said cable tie strap back towards said cable strap reel; a locking heads magazine assembly, configured to store a plurality of locking heads and supply one locking head at the time for use with said cable tie strap, and a blade guard, operably coupled between said cut-off mechanism and said locking heads magazine assembly, configured to receive and move said locking head from said locking heads magazine assembly into a loading position, ready for engagement with said cable tie strap.

The invention belongs to the technical field of gear machining, and discloses a gear milling blade and a disc-shaped milling cutter. The gear milling blade is installed on the end faces of the two sides of a milling cutter disc and comprises a top edge, a side edge and an auxiliary edge, and the top edge is arranged between the side edge and the auxiliary edge. The outer contour line of the top edge protrudes towards the workpiece to be machined, the outer contour line of the top edge comprises a top edge arc line and a Bezier curve, one end of the top edge arc line is connected with the outer contour line of the side edge, and the other end of the top edge arc line is an end point E; one end of the Bezier curve is connected with the end point E and is tangent to the end point E, and the other end of the Bezier curve is connected with the outer contour line of the auxiliary blade. The gear milling blade has the outline shape of a Bezier curve, and can effectively improve curvature distribution on a tooth root transition curve, increase the curvature radius of the tooth root transition curve and reduce tooth root stress when cutting a tooth groove, so that the tooth root strength of an involute gear is improved.

The invention belongs to the technical field of gear machining, and discloses a gear milling blade and a disc-shaped milling cutter. The tooth milling blade comprises a side edge, a top edge and an auxiliary edge, wherein the top edge is arranged between the side edge and the auxiliary edge; the outer contour line of the top edge protrudes towards the workpiece to be machined, the outer contour line of the top edge comprises a top edge arc line and an oval arc line, one end of the top edge arc line is connected with the outer contour line of the side edge, and the other end of the top edge arc line is an end point E; one end of the elliptic arc line is connected with the end point E and is tangent to the end point E, and the other end of the elliptic arc line is connected with the outer contour line of the auxiliary blade. The tooth milling blade is provided with an elliptical profile curve, so that the curvature distribution on a tooth root transition curve can be effectively improved, the curvature radius of the tooth root transition curve is increased and the tooth root stress is reduced when a tooth groove is cut, and thus the tooth root strength of an involute gear is improved; and meanwhile, the elliptic arc line and the top edge arc line are connected and tangent at the end point E, so that the outer contour line of the top edge is ensured to be smooth.

A razor blade with a sharpened cutting edge with an outer bonding surface. A hydrocarbon polymer organic coating material deposited on the outer bonding surface forming an outermost layer of the sharpened cutting edge. The hydrocarbon polymer organic coating is composed of one or more layers. Additionally, the method of coating the cutting edge is described.

An electric hair cutting device including a housing having a first end and a second end opposite the first end, a bladeset mounted to the housing at the first end, the bladeset having a stationary blade and a reciprocating blade, an electric motor electrically connected to a power source within the housing, a drive shaft operatively connecting the electric motor to the reciprocating blade, a control module within the housing which controls a rotational speed of the electric motor; and a trigger which sends an actuation signal to the control module based on a partial actuation of the trigger between a minimum actuation and a maximum actuation, the control module adjusting a rotational speed of the electric motor based on the actuation signal. A related charging stand is provided that is compatible with the hair cutting device and features a digital display of device parameters.

A shaving razor cartridge with a housing a housing, a guard at a front of the housing and a cap at a rear of the housing. A first blade, a second blade, a third blade, a fourth blade and fifth blade mounted to the housing between the guard and the cap. The first blade having a primary span. The second blade having a first blade span. The third blade having a second blade span. The fourth blade having a third blade span. The fifth blade having a fourth blade span. A ratio of a sum of the primary span, the first blade span, the second blade span, the third blade span and the fourth blade span to the primary span is 3:1 to 6:1.

The present application is directed a Joint Revision Surgery Apparatus which includes a surgical knife blade guide block which has a plurality of rearward blade guide slots, a central cavity and a large forward slot having an adjustable knife blade guide pressure plate. The surgical knife blade guide block central cavity houses a stem trunnion securing member and is positioned over the trunnion end of the existing prosthesis to be removed and secured to the prothesis. The guide blade block is secured to the trunnion of the prosthesis to be extracted using a stem trunnion securing member housed within the guide block. Straight, curved and compound curved knife blades are guided by the blade guide slots to cut the prothesis free. The Joint Revision Surgery Apparatus facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery, and significantly increases positive medical outcomes for joint revision procedures.

Heated nail clippers include a pair of spaced, reciprocal handles that open and close a pair of cutting blades. Each cutting blade includes an inner cutting edge configured to easily sever a pet's nails and an internal heating element or similar equivalent that heats the blades to a predetermined temperature. Accordingly, the clippers are used on an anesthetized pet to trim lengthy nails and to prevent regrowth. Furthermore, the clippers are used to significantly trim a cat's nails as an alternative to the controversial practice of declawing.

The invention relates to the technical field of steel pipe shearing, and discloses a steel pipe cutting device for civil engineering construction, which comprises a cutting part, the cutting part comprises a workbench, a cutting bracket is slidably connected to the interior of the workbench, a cutting blade is rotatably connected to the interior of the cutting bracket, and a blade avoiding groove is formed in the upper surface of the workbench; and the placing part comprises a placing groove formed in the upper surface of the workbench, and a vertical groove communicating with the surface of the inner wall of the placing groove is formed in the workbench. The steel pipe cutting device for civil engineering construction can effectively solve the problems that in the prior art, a grinding wheel cutting machine is matched with a right-angle ruler and a measuring tape for manual cutting in medium and small-sized projects, manual operation depends on experience of workers, deviation between an actual cutting face and normal cutting is large, and cutting precision cannot meet the direct installation requirement of the project easily; follow-up manual polishing and correction are needed, and time consumed by reworking of a single steel pipe is increased.

A razor cartridge has a housing with a blade mounting region between a guard and a cap. A first, second and third razor blade are sequentially mounted in the blade mounting region. An over-guard is secured over the blades. The cutting edges of the blades have an as-defined increased sharpness. The blades are mounted at a reduced angle between each blade portion bearing the cutting edge and a reference plane tangential to the cutting edges of the first and third blade. Individual longitudinal members of the over-guard that lie over each blade and have a progressively decreasing height above the reference plane in a front to back direction of the razor cartridge. A further longitudinal member is forward of the first blade and has a height above the reference plane.

The present invention provides an air-circulating apparatus 500 for a pot. The air-circulating apparatus 500 comprises a baseplate 510, a rotating assembly 520, a rotatable mount 530, a stationary mount 560, and a plurality of blades 540. The base plate 510 has a mounting assembly 512. The rotating assembly 520 is coupled on the base plate 510. The rotatable mount 530 is rotatably coupled around the mounting assembly 520 on the base plate 510 and rotatable by the rotating assembly 520 around the mounting assembly 530 along a direction of rotation (R). The rotatable mount 530 comprises a plurality of mounting structures 532. The stationary mount 560 is coupled to the mounting assembly 512.

A hair cutting device with an adjustable blade assembly is provided. A mounting bracket captures at least a portion of a blade assembly and blade bracket extends around the mounting bracket and is adjustable to change the position of the mounting bracket. A magnet is positioned within the mounting bracket to provide a magnetic force between the mounting bracket and the blade bracket. The magnetic force provides a smooth and consistent movement of the mounting bracket relative to the blade bracket and / or blade assembly.

Surgical instruments, systems, and methods for performing an osteotomy are disclosed herein. A surgical system includes a body with a distal end, a proximal end, a first surface, and a second surface. The surgical system can include cutting blades positioned on the first surface and / or the second surface. The surgical system can include columns of cutting blades positioned on the first surface and / or the second surface. The surgical system can include rows of cutting blades positioned on the first surface and / or the second surface.

Grass trimmer comprising a self-propelled motorized frame with which at least one lateral cutting plate provided with at least one rotary cutting blade is associated, said at least one lateral cutting plate being associated with said frame by adjustment means able to position it in a plurality of cutting positions, in each of which said at least one rotary cutting blade lies at a predetermined distance from the longitudinal axis of said grass trimmer.

The application discloses a cutting force self-sensing turning tool system and method, which comprises a tool shank tail, a groove, a tool head, a blade and a blade groove; the tool shank tail is connected with the tool head through a tool shank, the tool shank is an elastic square beam, the tool head is partially provided with the blade groove, the blade is arranged in the blade groove, four surfaces of the tool shank close to the tool head are provided with four grooves which are completely identical in structure, the grooves are sensing parts of the cutting force self-sensing turning tool system, and a self-sensing component is fixedly integrated on the four surfaces of the grooves. The application has simple structure, only needs to arrange the grooves on the tool shank close to the tool head, integrates the self-sensing component on the surfaces of the grooves, has low manufacturing cost and high measurement precision.

The invention relates to a multifunctional precise micro-milling device for hardness detection, which comprises a movable slide carriage, a U-shaped mounting plate and a milling head mounting plate, the U-shaped mounting plate and the milling head mounting plate are mounted on the movable slide carriage, a displacement sensor and a matched lifting unit are mounted on the U-shaped mounting plate, and a milling assembly is mounted on the milling head mounting plate. According to the invention, a mechanical device is utilized to make flexible contact with a test surface, the actual position of the test surface is reflected in real time through a displacement sensor, a servo motor acceleration and deceleration machine is adopted for driving, the height of the test surface is measured, and the height of the test surface is measured. The high-speed milling head is guided and driven by the heightened rigid wide linear guide rail to reach a reasonable height, a high-quality test surface is efficiently and accurately milled, a basically closed milling environment is formed in the lifting cutter sleeve, milling chips are collected through the high-power dust collector, and the cutter can be easily separated from the external lifting cutter sleeve through a rotatable push-pull structure. And the cutting blade is convenient to replace and maintain.

A garden shears structure has a first cutting member, an anvil, a second cutting member, a bolt, and a plurality of pivoting members. The second cutting member has a blade base, a driving member, the two connecting bar and two positioning plates. The first cutting member has two anvil bases with an arced long aperture, a first anvil base aperture and a second anvil base aperture. An opening is formed on the lower side of the blade base which has a first blade base aperture and a second blade base aperture. The driving member has two protrusions. Aa first driving member aperture and a second driving member aperture are disposed through the two protrusion respectively. A first connecting bar aperture and a second connecting bar aperture are disposed on the connecting bar. The positioning plate has a first positioning plate aperture and a second positioning plate.

The present application is directed a Joint Revision Surgery Apparatus which includes a surgical knife blade guide block which has a plurality of rearward blade guide slots, a central cavity and a plurality of guide slots having a two-way adjustable L-shaped guide plate. The surgical knife blade guide block central cavity houses a stem trunnion securing member and is positioned over the trunnion end of the existing prosthesis to be removed and secured to the prothesis. The guide blade block is secured to the trunnion of the prosthesis to be extracted using a stem trunnion securing member housed within the guide block. Straight, curved and compound curved knife blades are guided by the blade guide slots to cut the prothesis free. The Joint Revision Surgery Apparatus facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery, and significantly increases positive medical outcomes for joint revision procedures.

The invention provides a tool for chamfering an upper surface and a lower surface separately, intelligent chamfering equipment and a chamfering method, and relates to the technical field of chamfering of welding cutting. The cutter comprises a floating cutter handle, a cutter bar, a rotating sleeve, an upper cutter holder, a lower cutter holder, an upper pressing wheel, a lower pressing wheel, an upper depended wheel and a lower depended wheel, the upper cutter holder is sleeved with an upper pressing disc, the bottom face of the upper pressing disc is detachably connected with the rotating sleeve, a plurality of upper blades extend out of the top face of the upper pressing disc, and the side face of the upper depended wheel is a first conical face. The small end of the first conical surface is the top surface of the upper leaning wheel; the lower blades extend out of the bottom face of the lower pressing disc, the side face of the lower depended wheel is a second conical face, and the small end of the second conical face is the bottom face of the lower depended wheel. The lower blades extend out of the bottom face of the lower pressing disc, the side face of the lower depended wheel is a second conical face, and the small end of the second conical face is the bottom face of the lower depended wheel.