Abstract: A lever-type grease gun includes: a hollow cylinder having a first end and a second end opposite to the former; a front-end cover located at the first end and provided with a nozzle part and a mounting portion; a back-end cover located at its second end; an oil pushing rod located at the front-end cover, capable of moving in the front-end cover under push forces and closer to the back-end cover than the mounting portion, and having an oil pushing rod part; and a handle unit comprising a lever having a pivoting part to match the mounting portion, a pressing part and a plurality of straight slots between the two and a connecting set inserted in the oil pushing rod part and the straight slots and moving in the straight slots, thus reducing the force required to fill grease.

Abstract: A lever-type grease gun including a hollow cylinder having a first end and a second end opposite to the former; a front-end cover located at the cylinder's the first end and provided with a nozzle part and a mounting portion; a back-end cover located at its second end; an oil pushing rod located at the front-end cover, capable of moving in the front-end cover under push forces and closer to the back-end cover than the mounting portion, and having an oil pushing rod part; and a handle unit comprising a lever having a pivoting part to match the mounting portion, a pressing part and a long displacement hole between the two and a connecting set inserted in the oil pushing rod part and the long displacement holes and moving in the long displacement holes, thus reducing the force required to fill grease.

Abstract: A grease gun with a quick-release end cover includes a barrel, and an operating end cover and a piston end cover disposed at two ends of the barrel. Between the operating end cover and the barrel is disposed a quick-release device which includes: an annular groove formed around the barrel; a first hole formed in the operating end cover and includes an outer open end and an inner open end. Inside the first hole is formed an annular shoulder portion, in the outer open end of the first hole is formed a slot. A control member has a shaft inserted into the first hole, the shaft includes an abutting and an operating portion formed at two ends thereof, and a positioning pin. A compression spring is sleeved onto the shaft and pressed between the annular shoulder portion of the first hole, and the annular abutting portion of the abutting block.

Abstract: A grease gun with a quick-release end cover includes a barrel, and an operating end cover and a piston end cover disposed at two ends of the barrel. Between the operating end cover and the barrel is disposed a quick-release device which includes: an annular groove formed around the barrel; a first hole formed in the operating end cover and includes an outer open end and an inner open end. Inside the first hole is formed an annular shoulder portion, in the outer open end of the first hole is formed a slot. A control member has a shaft inserted into the first hole, the shaft includes an abutting and an operating portion formed at two ends thereof, and a positioning pin. A compression spring is sleeved onto the shaft and pressed between the annular shoulder portion of the first hole, and the annular abutting portion of the abutting block.

Abstract: An oil flow control structure for grease gun has a hollow main body. An inflow end and an outflow end are respectively disposed at two sides of the main body. A high pressure passage and a low pressure passage, in which its inner diameter is larger than the high pressure passage, are disposed between the inflow end and the outflow end. A first pumping rod and a second pumping rod are respectively disposed in the two passages. The first pumping rod is pivoted to a pressing stem. The second pumping rod is pivoted to the pressing stem through a switching mechanism. The switching mechanism can regulate a pivot position of the second pumping rod relative to the pressing stem so that an initial position of the second pumping rod performing piston motion in the low pressure passage can be changed to seal or open the second inflow port.

Abstract: The PTFE real twist yarn of the present invention is a PTFE real twist yarn obtained by twisting a polytetrafluoroethylene (PTFE) multi-filament slit yarn. The yarn has a circular cross-section with a circularity in the range of 10/8 to 10/10, where the circularity is expressed by the ratio between the major axis width and the minor axis width, the average fineness of filaments is in the range of 1.5 to 200 dtex, a fineness D is in the range of 50 to 6000 dtex, and a twist coefficient K expressed by Formula (1) is in the range of 10000 to 35000: twist coefficient K=number of twists T×(the fineness D of the PTFE real twist yarn)1/2??(1) where the number of twists T denotes the number of twists per meter and the fineness D is a total fineness.

Abstract: An oil flow control structure for grease gun has a hollow main body. An inflow end and an outflow end are respectively disposed at two sides of the main body. A high pressure passage and a low pressure passage, in which its inner diameter is larger than the high pressure passage, are disposed between the inflow end and the outflow end. A first pumping rod and a second pumping rod are respectively disposed in the two passages. The first pumping rod is pivoted to a pressing stem. The second pumping rod is pivoted to the pressing stem through a switching mechanism. The switching mechanism can regulate a pivot position of the second pumping rod relative to the pressing stem so that an initial position of the second pumping rod performing piston motion in the low pressure passage can be changed to seal or open the second inflow port.

Abstract: A polytetrafluoroethylene (PTFE) fiber includes a filament obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament includes a network structure in which single fibrils that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided.

Abstract: The PTFE real twist yarn of the present invention is a PTFE real twist yarn obtained by twisting a polytetrafluoroethylene (PTFE) multi-filament slit yarn. The yarn has a circular cross-section with a circularity in the range of 10/8 to 10/10, where the circularity is expressed by the ratio between the major axis width and the minor axis width, the average fineness of filaments is in the range of 1.5 to 200 dtex, a fineness D is in the range of 50 to 6000 dtex, and a twist coefficient K expressed by Formula (1) is in the range of 10000 to 35000: twist coefficient K=number of twists T×(the fineness D of the PTFE real twist yarn)1/2??(1) where the number of twists T denotes the number of twists per meter and the fineness D is a total fineness.

Abstract: A polytetrafluoroethylene (PTFE) fiber includes a filament obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament includes a network structure in which single fibrils that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided.

Abstract: A polytetrafluoroethylene (PTFE) fiber includes a filament obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament includes a network structure in which single fibrils that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided.

Abstract: A polytetrafluoroethylene (PTFE) fiber includes a filament obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament includes a network structure in which single fibrils that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided.

Abstract: A PTFE fiber with a low density and having a network structure that allows effective performances to be given to its finished articles and a method for manufacturing the PTFE fiber are provided. The PTFE fiber is a filament obtained by giving a heat treatment to a biaxially stretched polytetrafluoroethylene (PTFE) film, followed by slitting partially in a lengthwise direction of the film. The filament includes a network structured fiber in which single fibers are opened partially in the width direction, and the filament is an aggregate of the single fibers. This fiber is manufactured as the filament by feeding a biaxially stretched PTFE film to a revolving pin roll with needles implanted thereon, the needles being arranged so that a plurality of rows run obliquely along a circumferential direction at substantially regular intervals, and slitting the film partially in a lengthwise direction. This PTFE filament may be cut into short fibers with a cutter. The short fibers include a branch structure.

Abstract: A nanomaterial processing system is constructed to include a compressor adapted to compress a flow of air/liquid into a high-pressure flow of air/liquid, a material feeder adapted to feed a material into the high-pressure flow of air/liquid passing out of the compressor, enabling the fed material to be mixed with the high-pressure flow of air/liquid into a high-pressure material flow; a shunt collider adapted to shunt the high-pressure material flow into two sub-flows and to let the shunt sub-flows to collide into a collided material flow, and a high-speed cutting unit, which uses a diamond coating-coated cutting wheel to cut solid substances the collided material flow.

Abstract: A detecting method can perform the drop test according to the exact grounding condition, thereby detecting the actual grounding data. In addition, the shock accelerometer on the tested point of the test object can obtain an experimented G value which is compared with the simulated G value that is obtained by inputting the grounding angles (the grounding angles are calculated according to the grounding pictures) into the simulation program. In addition, the drop test device can reduce interruption, thereby enhancing the whole detecting accuracy.

Abstract: A detecting method can perform the drop test according to the exact grounding condition, thereby detecting the actual grounding data. In addition, the shock accelerometer on the tested point of the test object can obtain an experimented G value which is compared with the simulated G value that is obtained by inputting the grounding angles (the grounding angles are calculated according to the grounding pictures) into the simulation program. In addition, the drop test device can reduce interruption, thereby enhancing the whole detecting accuracy.

Abstract: A nanomaterial processing system is constructed to include a compressor adapted to compress a flow of air/liquid into a high-pressure flow of air/liquid, a material feeder adapted to feed a material into the high-pressure flow of air/liquid passing out of the compressor, enabling the fed material to be mixed with the high-pressure flow of air/liquid into a high-pressure material flow; a shunt collider adapted to shunt the high-pressure material flow into two sub-flows and to let the shunt sub-flows to collide into a collided material flow, and a high-speed cutting unit, which uses a diamond coating-coated cutting wheel to cut solid substances the collided material flow.

Abstract: A PTFE fiber with a low density and having a network structure that allows effective performances to be given to its finished articles and a method for manufacturing the PTFE fiber are provided. The PTFE fiber is a filament obtained by giving a heat treatment to a biaxially stretched polytetrafluoroethylene (PTFE) film, followed by slitting partially in a lengthwise direction of the film. The filament includes a network structured fiber in which single fibers are opened partially in the width direction, and the filament is an aggregate of the single fibers. This fiber is manufactured as the filament by feeding a biaxially stretched PTFE film to a revolving pin roll with needles implanted thereon, the needles being arranged so that a plurality of rows run obliquely along a circumferential direction at substantially regular intervals, and slitting the film partially in a lengthwise direction. This PTFE filament may be cut into short fibers with a cutter. The short fibers include a branch structure.

Abstract: A grease dispensing gun includes a handle having a trigger device and a fitting respectively connected thereto. A connection member is connected to a top end of the handle and a first end of a barrel is rotatably engaged with an inner periphery of the connection member. A container is connected to the nozzle member. The first end of the barrel has a flange extending radially inward therefrom and a board is securely engaged with the flange. A bolt extends through the connection member and is engaged with the board.