Abstract: A portable, sterilizable light source unit for being coupled to an instrument is provided. The unit includes a sealed housing having an anodized coating and a port for receiving an end tip of a light guide of a separate instrument, a light source mounted within the sealed housing for directing light through the port, a battery mounted within the housing for powering the light source, a switch assembly mounted on the housing for controlling light output of the light source, and an O-ring in a compressed condition between the switch assembly and the housing providing a fluid-tight seal therebetween that prevents liquid intrusion into the housing during an immersion sterilization process.

Abstract: A portable, sterilizable light source unit for being coupled to an instrument is provided. The unit includes a sealed housing having an anodized coating and a port for receiving an end tip of a light guide of a separate instrument, a light source mounted within the sealed housing for directing light through the port, a battery mounted within the housing for powering the light source, a switch assembly mounted on the housing for controlling light output of the light source, and an O-ring in a compressed condition between the switch assembly and the housing providing a fluid-tight seal therebetween that prevents liquid intrusion into the housing during an immersion sterilization process.

Abstract: Provided herein are rotary valve assemblies, engines, and corresponding methods. A rotary valve assembly may include a valve housing defining a cylindrical bore, an inlet, and an outlet. The valve assembly may further include an intake assembly and a throttle assembly arranged concentrically within the cylindrical bore of the valve housing, and the intake assembly and the throttle assembly may rotate independently of one another with respect to a longitudinal axis. During operation of the rotary valve assembly, the valve housing may permit fluid to enter the cylindrical bore of the valve housing via the inlet, the intake assembly may rotate to permit the fluid to flow through the at least one intake inlet port and the at least one throttle inlet port into the throttle body, and the intake assembly may permit the fluid to flow to the outlet from the throttle body.

Abstract: The current invention is a high speed, two-stroke engine that is counter flow, semi-uniflow, or uniflow and is comprised of at least one variable rotary valve mechanism.

Abstract: Provided herein are rotary valve assemblies, engines, and corresponding methods. A rotary valve assembly may include a valve housing defining a cylindrical bore, an inlet, and an outlet. The valve assembly may further include an intake assembly and a throttle assembly arranged concentrically within the cylindrical bore of the valve housing, and the intake assembly and the throttle assembly may rotate independently of one another with respect to a longitudinal axis. During operation of the rotary valve assembly, the valve housing may permit fluid to enter the cylindrical bore of the valve housing via the inlet, the intake assembly may rotate to permit the fluid to flow through the at least one intake inlet port and the at least one throttle inlet port into the throttle body, and the intake assembly may permit the fluid to flow to the outlet from the throttle body.

Abstract: A hydrostatic drive, to operate rotational industrial equipment such as a fan, a pump, a compressor, a conveyor or other drive used in industrial settings. The invention utilizes one or more variable displacement pump(s) configured to drive one or more fixed displacement hydraulic motor(s), or utilizing one or more fixed displacement pump(s) configured to drive one or more variable displacement hydraulic motor(s) or utilizing one or more variable displacement pump(s) configured to drive one or more variable displacement hydraulic motor(s). The pump(s) is powered by a fixed speed or variable speed motor or engine, most likely a fixed speed electric motor. The motor operates the rotational equipment with the purpose of process control, efficiency, and/or energy conservation.