Plug assembly

Details Plug assembly Plug assembly

1996-10-04

1998-05-12

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Plural dissimilar mechanical movements

4293, 4295, 4689, 251252, 251263, 251322, 251323, 251344, 251345, 251346, 251347, 251348, 251294, A47K 114, F16K 3146, F16K 31528

Patent

active

057495610

ABSTRACT:
A plug assembly (2) which can be used in a drain, sink or bath (5). The plug (2) is of the pop up type being spring biassed into an open position. The plug (2) includes inter-engaging means for engagement of the plug (2) with a waste pipe (3) and means to permit the movement of the plug (2) relative to the pipe (3), both of which are circumferentially situated so that there is no impediment to fluid moving through the plug (2) and into the pipe (3). The means to bias the plug (2) to the open position includes a spring (18) which is arranged between the exterior of the plug (2) side and the interior of the waste pipe (3), and shoulders (6, 19) formed in each, such that said fluid flowing through the pipe (3) does not contact the spring (18). The plug (2) can be manually operated or operated remotely.

REFERENCES:
patent: 1811170 (1931-06-01), Brotz
patent: 4764993 (1988-08-01), Oropallo
NZ, 244073 (Worthington) Aug. 25, 1992.
PCT/NZ96/00031 (Worthington and O'Connell), International Filing Date--Apr. 11, 1996.

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