Beds – Bedclothing – And means to facilitate changing thereof
Patent
1992-01-08
1992-08-11
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5453, 5918, 417151, 417181, 141 65, A47C 2708
Patent
active
051367394
ABSTRACT:
A water bed having a built-in drain pipe. The water bed includes a water tight bladder which has an inlet port and an outlet port formed therein. A jet pump is connected between the inlet port and the outlet port and located in the interior of the water tight bladder such that the contents of the water tight bladder can be sucked out by providing a motive liquid at the inlet port and attaching drain tubing at the outlet port. The jet pump includes a jet nozzle, a diffuser and a spacer for aligning the jet nozzle and the diffuser. A chamber can be provided around the jet nozzle and diffuser to allow filtering of fluid drawn into the diffuser. The pump can be formed as a one-piece venturi pump element.
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