Abstract: A detachable box magazine includes a housing having a base; a follower; a biasing element biasing the follower away from the base; a spool member; a retraction member operatively connected to the follower and to the spool member; a winding member selectively engaged with the spool member, and, when engaged with the spool member, manipulated to rotate the spool member in a winding direction to wind the retraction member about the spool member and pull the follower toward the base against the biasing element.

Abstract: A detachable box magazine includes a housing having a base; a follower; a biasing element biasing said follower away from said base; a spool member; a retraction member operatively connected to said follower and to said spool member; and a winding member having a spool-engaged position wherein the winding member is engaged with the spool member and rotation of the winding member causes the retraction member to wind on the spool member, the spool-engaged position being achieved upon sufficient rotation of the winding member in a winding direction, and the winding member having a release position wherein the winding member is disengaged from the spool member, the winding member being moved from the spool-engaged position to the release position upon sufficient rotation of the winding member in an unwinding direction opposite the winding direction.

Abstract: A detachable box magazine includes a housing having a base; a follower; a biasing element biasing said follower away from said base; a spool member; a retraction member operatively connected to said follower and to said spool member; and a winding member having a spool-engaged position wherein the winding member is engaged with the spool member and rotation of the winding member causes the retraction member to wind on the spool member, the spool-engaged position being achieved upon sufficient rotation of the winding member in a winding direction, and the winding member having a release position wherein the winding member is disengaged from the spool member, the winding member being moved from the spool-engaged position to the release position upon sufficient rotation of the winding member in an unwinding direction opposite the winding direction.

Abstract: A detachable box magazine includes a housing having a base; a follower; a biasing element biasing the follower away from the base; a spool member; a retraction member operatively connected to the follower and to the spool member; a winding member selectively engaged with the spool member, and, when engaged with the spool member, manipulated to rotate the spool member in a winding direction to wind the retraction member about the spool member and pull the follower toward the base against the biasing element.

Abstract: A detachable box magazine includes a housing having a base; a follower; a biasing element biasing the follower away from the base; a spool member; a retraction member operatively connected to the follower and to the spool member; a winding member selectively engaged with the spool member, and, when engaged with the spool member, manipulated to rotate the spool member in a winding direction to wind the retraction member about the spool member and pull the follower toward the base against the biasing element.

Abstract: A straight shaft non-planetating rotary piston engine includes a housing and at least one rotating piston mounted for circular rotation about an axis within the housing. The piston and the housing define an expansible combustion chamber that produces at least one combustion events for every rotation of the piston about the axis. The invention also includes a moveable cylinder head having a profile roller. The profile roller cooperates with an open face profile impressed into a rotary encoder. The open face profile is configured to pull the cylinder head into near-contact with the rotating piston face, and the moveable cylinder head is spring biased to repel the moveable cylinder head away from the rotating piston face.

Abstract: A chainsaw is provided having a brake band disposed about a brake drum, which is rotated upon movement of a throttle control trigger to an on throttle position. Rotation of the brake drum results in rotation of the saw chain about the saw bar. A braking mechanism, in its normal position, serves to draw the brake band taut about the brake drum to prevent advancement of the saw chain. A safety lever is associated with the braking mechanism, and, in its braking position does not affect the normal position of the braking mechanism. When the safety lever is moved to its release position, the braking mechanism is manipulated and the brake band is loosened from about the brake drum. When loosened, moving the throttle control trigger to the on throttle position causes the brake drum rotate to drive the elements of the chainsaw that serve to advance the saw chain.

Abstract: A chainsaw is provided having a brake band disposed about a drum that rotates during advancement of the saw chain about the saw bar. An end of the brake band is biased to a position that draws the brake band tight about the drum to prevent advancement of the saw chain, and the throttle trigger of the chainsaw is associated with this biased end to push the band against the bias and release the drum when the throttle trigger is squeezed to drive the elements of the chainsaw that serve to advance the saw chain. Also provided are new concepts for associating gasing and braking elements with the throttle trigger.

Abstract: A chainsaw is provided having a brake band disposed about a drum that rotates during advancement of the saw chain about the saw bar. An end of the brake band is biased to a position that draws the brake band tight about the drum to prevent advancement of the saw chain, and the throttle trigger of the chainsaw is associated with this biased end to push the band against the bias and release the drum when the throttle trigger is squeezed to drive the elements of the chainsaw that serve to advance the saw chain. Also provided are new concepts for associating throttling and braking elements with the throttle trigger.

Abstract: A pipe cutter comprises a rotary head having an axis of rotation, and a housing gear is coaxial with the rotary head such that the housing gear and rotary head have a common axis of rotation. A pipe slot extends into the rotary head and the housing gear, and a pipe cradle is provided in the pipe slot, and serves to receive a pipe. A cutting wheel is associated with the rotary head and a wheel biasing member urges the cutting wheel to extend into the pipe slot. A primary drive source is operatively connected to the housing gear by a gear system that rotates the housing gear and the rotary head about the common axis of rotation. Because the cutting wheel is biased to extend into the pipe slot and contacts a pipe placed therein, the cutting wheel revolves around the pipe and cuts into the pipe during rotation of the rotary head. The primary drive source may be manual or automated.

Abstract: The present invention provides a pipe cutter apparatus that includes a housing having a base and lid. The lid is moveable between a storage position and an operative position. A motor is retained within the housing and has a shaft operatively connected thereto and rotated thereby. A cutting wheel extends radially from the shaft and is rotated with the shaft. A pipe conveyor is also retained within the housing, adjacent the cutting wheel. The pipe conveyor may be operated to urge a pipe placed therein into engagement with the cutting wheel. The pipe conveyor is preferably adjustable to receive pipes of various diameters. Notably, when the lid is in the operative position, a work area is provided for cutting a pipe or similar work piece. When the lid is in the storage position, a carrying case is provided such that the pipe cutter apparatus is readily portable. A cleaning brush also extends from the shaft that is rotated by the motor.

Abstract: The present invention provides a pipe cutter apparatus that includes a housing having a base and lid. The lid is moveable between a storage position and an operative position. A motor is retained within the housing and has a shaft operatively connected thereto and rotated thereby. A cutting wheel extends radially from the shaft and is rotated with the shaft. A pipe conveyor is also retained within the housing, adjacent the cutting wheel. The pipe conveyor may be operated to urge a pipe placed therein into engagement with the cutting wheel. The pipe conveyor is preferably adjustable to receive pipes of various diameters. Notably, when the lid is in the operative position, a work area is provided for cutting a pipe or similar work piece. When the lid is in the storage position, a carrying case is provided such that the pipe cutter apparatus is readily portable. A cleaning brush also extends from the shaft that is rotated by the motor.