Abstract: A remote control tiller arm is provided for controlling the operation of an outboard motor. An inverted U-shaped steering boom is attached to the outboard motor and extends over-the motor boat operator. The steering boom includes a throttle mechanism for remotely controlling the speed of the outboard motor. By using the steering boom, the motor board operator can steer the boat from a forward looking position.

Abstract: A hand-held valve structure for use with an oral evacuator system of the type which includes a vacuum source/waste disposal unit connected to the valve structure through a flexible vacuum hose. The valve structure includes an elongated body member having a central bore which is coupled to the vacuum hose. The upstream end of the body member includes a valve seat which surrounds the central bore. A poppet or valve piece, which is positioned adjacent the valve seat, is secured to the one end of a connecting rod, the rod being slidably-mounted on the body member. A detachable cover having a central bore is secured over the valve seat of the body member. The cover is provided with a slot which provides access to the connecting rod. A thumb latch is provided which is connected to the connecting rod through the cover member slot. A cam spring is positioned around the body member and engages the thumb latch so as to latch the poppet in either an open or a closed position.

Abstract: A unitary self-contained kit of components is readily attachable to a sliding door without modification of the door to effect gravity actuated closing. The kit includes a guide channel and pulley that are simply adhesively secured to an outwardly facing surface portion of the door at the rear of the door. A weight is slidably confined within the guide and hangs from a line entrained over the pulley and connected to a hook on the doorway lintel. Included in the kit is a universal wheel and bracket assembly that can be readily mounted on many different types of doors.

Abstract: A specific embodiment provides a valve structure for an evacuator system adapted to be connected to a source of negative pressure. The valve structure includes an elongated housing having a longitudinal bore extending through the housing, and a valve seat formed by a reduced diameter portion of the bore. A valve member is situated in the bore for abutting engagement with the valve seat to prevent passage of flowable materials therebetween. Biasing means is provided for urging the valve member into abutting engagement with the valve seat. A manually operable member is operatively associated with the biasing means for moving the valve member out of engagement with the valve seat to permit passage of flowable materials therebetween.

Abstract: A specific embodiment provides a valve structure for an oral evacuator system adapted to be connected to a source of negative pressure. The valve structure includes an elongated housing having a longitudinal bore extending through the housing, a valve seat formed by a reduced diameter portion of the bore, and a slot extending through the housing to the bore and longitudinally of the housing. A valve member is situated in the bore for abutting engagement with the valve seat to prevent passage of flowable materials therebetween. A spring is provided for biasing the valve member into abutting engagement with the valve seat, and the spring includes an offset portion extending outwardly through the slot. A manually operable member is connected to the offset spring portion for moving the offset spring portion to compress the spring and thereby move the valve member out of engagement with the valve seat to permit passage of flowable materials therebetween.