Abstract: A suction assembly employs an air induction tube to induct air into the recirculating water pump to cause the pump to cease pumping operation when the front face of the assembly is blocked. The induction tube is connected to a bleed path formed between the induction tube and a surrounding coaxial face tube extended into the assembly from the front face. When the face is blocked by hair or the like, water in the induction tube bleeds into the main chamber of the assembly and empties the induction tube. Air is then pulled into the pump, causing the pump to lose prime thereby reducing pump pressure to zero and allowing the hair or other blocking material to be removed.

Abstract: A substantially transparent or open window injection molded plastic security container having an integral locking mechanism comprising a plurality of locking fingers designed to interface with a plurality of locking bars. The locking mechanism is generally inaccessible to a customer without a special key, which is preferably retained in a location inaccessible to customers but accessible to employees of a retail establishment, such as in a location behind a counter. The locking mechanism is designed to be inserted onto a stable, fixed key and then rotated relative to the key, whereby the key provides preselected movement of the fingers to release them from the locking bars and open the security package to release the contents thereof.

Abstract: A unitary apparatus combines the pneumatic switch and air control functions of separate conventional devices thereby eliminating the requirement to put two separate devices in a jetted whirlpool bath or spa. Two embodiments of the invention are disclosed herein. In each such embodiment, in addition to the pneumatic pump there is an air control body joined to a threaded body, the latter housing an air outlet and a push tube positioned concentrically within a rotatable face member. The push tube provides a button the depression of which activates the air pump using a pneumatic pulse. The face provides a means for controlling the whirlpool action generated at the output of a plurality of Venturi jets attached to the system. The face is substantially resistant to removal which would expose an easily removable plunger tube, tapered ring and other small members of the invention.