Abstract: A boat helm steering seat includes a multi-angle positionable seat back in which the seat back frame is pivotally connected to the frame of the seat by a pivotal connection that includes a clevis having a stem that slidably supports the vertically oriented legs of the seat back frame. A pivot control mechanism formed as laterally opposed sector plates having an arcuate slot with a center of curvature at the pivotal connection between the seat and seat back frames. Pins projecting outwardly from the seat back legs are engageable with notches formed in the sector plates extending downwardly from said arcuate slot to correspond to pre-selected pivoted positions of the seat back. Pivotal movement of the seat back is accomplished by vertically lifting the seat back to effect a sliding movement over the stems of the clevises and re-positioning the pins on the seat back legs into the notch corresponding to the position desired for the seat back.

Abstract: A system and method for aerial cargo delivery is disclosed that uses a linkless towplate having an eccentric cam and a pin. The cargo flexible tension member is isolated from the force of a deployed drogue parachute by a frictional holding force generated by the eccentric cam and the pin. A system and method for aerial cargo delivery is also disclosed that uses a towplate with a link assembly. The towplate has two cylinders that hold the cargo flexible tension member and the drogue parachute flexible tension member.

Abstract: A gimballed conduit connector for connecting two conduits transporting high temperature and pressure fluids. Rings having two parallel tabs are attached to the ends of two conduits that are to be connected. A coupler ring between the two tabbed rings has four tab pockets through which four pins are inserted to provide axles for the rotatable retention of the tabbed rings in the connector ring. A bellows around the rings seals the connection. Optimum flexibility and life of the connector is achieved by the gimballed pin and tab system and selection of high flexibility materials and dimensions for the bellows.