Abstract: A recoil inversion assembly for firearms having frame, barrel for a cartridge, bolt movable during a firing cycle, firing mechanism for firing the cartridge and recoil rod with recoil spring. The recoil inversion assembly has a transfer arm with one end pivotally connected to the bolt at a bolt axis, a guide slot in the frame for slidably receiving the bolt axis as the bolt moves during a firing cycle, an inversion lever having one end pivotally connected to the opposite end of the transfer arm, a fulcrum engaged with the inversion lever for rotation of the inversion arm with respect to the frame and recoil force transmitting mechanism connected to the inversion lever for transmitting rotation of the inversion level to the recoil spring for compressing the spring such that blowback during a firing cycle is transferred through the recoil inversion assembly to the recoil spring.

Abstract: A recoil inversion assembly for firearms having frame, barrel for a cartridge, bolt movable during a firing cycle, firing mechanism for firing the cartridge and recoil rod with recoil spring. The recoil inversion assembly has a transfer arm with one end pivotally connected to the bolt at a bolt axis, a guide slot in the frame for slidably receiving the bolt axis as the bolt moves during a firing cycle, an inversion lever having one end pivotally connected to the opposite end of the transfer arm, a fulcrum engaged with the inversion lever for rotation of the inversion arm with respect to the frame and recoil force transmitting mechanism connected to the inversion lever for transmitting rotation of the inversion level to the recoil spring for compressing the spring such that blowback during a firing cycle is transferred through the recoil inversion assembly to the recoil spring.

Abstract: The present invention is directed to novel recoil inversion assemblies, which reduce recoil generated by blowback of the propellant gases, as well as their use in propellant-based projectile weapons. Such novel weapons afford reduced recoil, muzzle flip, and muzzle climb, and therefore exhibit improved manageability as compared with current related weapons, particularly when utilizing high powered ammunition. In particular, the recoil inversion assemblies of the present invention further comprise novel delayed-blowback assemblies affording utility with larger caliber ammunition.

Abstract: The present invention is directed to novel recoil inversion assemblies, which reduce recoil generated by blowback of the propellant gases, as well as their use in propellant-based projectile weapons. Such novel weapons afford reduced recoil, muzzle flip, and muzzle climb, and therefore exhibit improved manageability as compared with current related weapons, particularly when utilizing high powered ammunition. In particular, the recoil inversion assemblies of the present invention further comprise novel delayed-blowback assemblies affording utility with larger caliber ammunition.

Abstract: A method of stimulating bone regeneration in a discontinuous section of a long bone in a subject requiring same, comprising the step of applying to said discontinuous section of the bone an effective vacuum for an effective length of time. A device for carrying out the method consisting of a sealable tubular-shaped sleeve or cuff that fits snugly and sealably around the bone section to be treated and that can be evacuated via a port that is integral to the sleeve or port.

Abstract: The present invention provides a method for treating at least one of the following: osteoarthritis, rheumatoid arthritis, cartilage injury, and a cartilage defect containing the following steps. First, a defective cartilage tissue is provided. Second, a solution containing ions for treating defective cartilage tissue is provided. Third, the solution containing ions is introduced about the defective cartilage tissue. Fourth, an electrical source generates electricity. Fifth, the solution containing ions and an area about the defective cartilage tissue is contacted with the electricity from the electrical source. Sixth, the electrical source is powered on to provide electricity, whereby the ions move from the solution and into the defective cartilage tissue.

Abstract: A method of stimulating bone regeneration in a discontinuous section of a long bone in a subject requiring same, comprising the step of applying to said discontinuous section of the bone an effective vacuum for an effective length of time. A device for carrying out the method consisting of a sealable tubular-shaped sleeve or cuff that fits snugly and sealably around the bone section to be treated and that can be evacuated via a port that is integral to the sleeve or port.

Abstract: The invention provides a blade sharpening device designed for sharpening a blade for a uniform sharpening of the edge thereof. Generally, the blade sharpening device includes a base, a guide, a carriage, and a blade holder. The blade holder secures the blade while being sharpened. The blade holder is connected to the guide which is movable relative to the base. The base includes a material that receives an impression of a blade to define a blade contour and a grinding medium which provides an abrasive surface. The carriage interacts with the guide to define a sharpening path substantially aligning with the blade contour. The carriage and the guide direct the movement of the abrasive surface along the contour of the blade for a uniform sharpening of the edge thereof.

Abstract: A method of stimulating bone regeneration in a discontinuous section of a long bone in a subject requiring same, comprising the step of applying to said discontinuous section of the bone an effective vacuum for an effective length of time. A device for carrying out the method consisting of a sealable tubular-shaped sleeve or cuff that fits snugly and sealably around the bone section to be treated and that can be evacuated via a port that is integral to the sleeve or port.

Abstract: The present invention provides a blade sharpening device designed for sharpening a blade for a uniform sharpening of the edge thereof. Generally, the blade sharpening device includes a base, a guide, a carriage, and a blade holder. The base has a guide movable relative to the base. In one embodiment, the base includes a material that receives an impression of a blade defining a blade contour. A blade holder is attached to the base for securing the blade while being sharpened. The carriage includes a means for interacting with the material of the guide or the carriage to define a sharpening path substantially aligning with the blade contour. The carriage has an abrasive surface for sharpening the blade. In operation, the guide and carriage direct the movement of the abrasive surface along the contour of the blade for a uniform sharpening of the edge thereof.

Abstract: The present invention provides a blade sharpening device designed for sharpening a blade for a uniform sharpening of the edge thereof. The blade sharpening device contains a base having a guide slidably movable relative to the base. The guide includes a material that receives an impression of a blade defining a blade contour. A blade holder is attached to the base for securing the blade while being sharpened. A carriage contains an elongated structure for interacting with the material of the guide which has received an impression of the blade defining a blade contour. The guide defines a sharpening path substantially aligning with the blade contour. The carriage also has an abrasive surface for sharpening the blade. In operation, the guide and carriage direct the movement of the abrasive surface along the contour of the blade for a uniform sharpening of the edge thereof.

Abstract: The present invention provides a blade sharpening device designed for sharpening a blade for a uniform sharpening of the edge thereof. The blade sharpening device contains a base having a guide slidably movable relative to the base. The guide includes a material that receives an impression of a blade defining a blade contour. A blade holder is attached to the base for securing the blade while being sharpened. A carriage contains an elongated structure for interacting with the material of the guide which has received an impression of the blade defining a blade contour. The guide defines a sharpening path substantially aligning with the blade contour. The carriage also has an abrasive surface for sharpening the blade. In operation, the guide and carriage direct the movement of the abrasive surface along the contour of the blade for a uniform sharpening of the edge thereof.

Abstract: A method of stimulating bone regeneration in a discontinuous section of a long bone in a subject requiring same, comprising the step of applying to said discontinuous section of the bone an effective vacuum for an effective length of time. A device for carrying out the method consisting of a sealable tubular-shaped sleeve or cuff that fits snugly and sealably around the bone section to be treated and that can be evacuated via a port that is integral to the sleeve or port.

Abstract: A method of stimulating bone regeneration in a discontinuous section of a long bone in a subject requiring same, comprising the step of applying to said discontinuous section of the bone an effective vacuum for an effective length of time. A device for carrying out the method consisting of a sealable tubular-shaped sleeve or cuff that fits snugly and sealably around the bone section to be treated and that can be evacuated via a port that is integral to the sleeve or port.

Abstract: A method of stimulating bone regeneration in a local area of a bone in a subject requiring same, comprising the step of applying to said local area of said bone an effective vacuum for an effective length of time.