Importance

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Abstract

A vacuum chamber is provided with a drive region having outside diameter threads and a longitudinal guide slot. An annular collar carries inside diameter threads for mating with the vacuum chamber threads such that the collar is longitudinally moved relative to the vacuum chamber by user rotation of such annular collar. Coupling members project through the vacuum chamber longitudinal slot from the annular collar to a drivable piston movably received in the vacuum chamber such that controlled movement of such piston at least partially displaces air within the vacuum chamber so as to generate a corresponding level of vacuum in such vacuum chamber. Once a user's male sex organ is placed into the vacuum chamber via an open end thereof, the user may rotate the annular collar so as to displace air within the vacuum chamber and produce a desired vacuum engorgement of the user's male sex organ. The engorged condition may be captured utilizing a cincture band or similar, and thereafter the negative pressure within the vacuum chamber may be released through operation of a valve associated with a closed end of the drivable piston. A vacuum limiter may actuate such valve at a predetermined vacuum level to prevent excessive vacuum chamber negative pressure, for the user's safety and comfort. A pumpless system and methodology results from utilizing the principle of air displacement for generating the vacuum (i.e., negative pressure) within the vacuum chamber.

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First Claim