Abstract: A container-mounted dispensing pump incorporates an elastically deformable pump wall and elastomeric valves for controlling the flow into and from the pump chamber. A mechanism at the movable end of the deformable pump wall engages the outlet valve to effect positive closure thereof when the actuator is disposed in an extended, shipping position. With the pump actuator placed in the shipping position, the close outlet valve will preclude leakage of the container contents though the pump.

Abstract: A restricted use hypodermic syringe employs a plunger assembly which enables it to be filled and used conventionally but not reused. The plunger assembly incorporates a plunger lock positioned in the syringe barrel about the plunger rod. The plunger lock engages the inner wall of the barrel to form a one-way brake which allows movement of the plunger lock forwardly in the barrel but prevents its rearward movement. The plunger lock also engages the plunger rod to form a one-way clutch which allows the plunger rod to move rearwardly relative to the plunger lock and couples the plunger rod and plunger lock for movement together in the forward direction. The syringe is provided to the user with the piston of the plunger assembly positioned forwardly and the plunger lock positioned rearwardly in the syringe barrel. The syringe is filled by withdrawing the piston.

Abstract: A restricted use hypodermic syringe employs a plunger assembly which enables it to be filled and used conventionally but not reused. The plunger assembly incorporates a plunger lock positioned in the syringe barrel about the plunger rod. The plunger lock engages the inner wall of the barrel to form a one-way brake which allows movement of the plunger lock forwardly in the barrel but prevents its rearward movement. The plunger lock also engages the plunger rod to form a one-way clutch which allows the plunger rod to move rearwardly relative to the plunger lock and couples the plunger rod and plunger lock for movement together in the forward direction. The syringe is provided to the user with the piston of the plunger assembly positioned forwardly and the plunger lock positioned rearwardly in the syringe barrel. The syringe is filled by withdrawing the piston.

Abstract: A portable self-supporting post assembly designed for supporting sports nets, tarpaulins, awnings and the like includes a post anchor with downwardly extending prongs adapted to be imbedded in a penetrable support surface such as sand or soil. The pongs are fastened to a base plate of the post anchor at locations displaced outwardly from a post or pole which extends upwardly from a top surface of the base plate. The prongs are formed of flat spring metal and are outwardly curved to enhance their gripping action in the support surface. The resiliency of the prongs maintains the tautness of a net, tarpaulin, awning or the like which is supported between a pair of the post assemblies.