Taps for controlling liquid flow

Details Taps for controlling liquid flow Taps for controlling liquid flow

2005-12-27

2005-12-27

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Reciprocating valve

Particular head and seat cooperation

C251S265000, C251S296000, C251S277000

Reexamination Certificate

active

06978981

ABSTRACT:
The invention discloses a tap (10) for controlling liquid flow. The tap (10) has a tube (14) with first (16) and second (18) opposite open ends, an inlet opening (20) leading into the tube between the first and second open ends, and an outlet opening (16) defined by the first open end (16), which outlet opening (16) serves as an outlet from the tube (14). The tap (10) further includes a first valve seat (36), formed between the inlet opening (20) and the outlet opening (16), and a second valve seat (38), formed between the inlet opening (20) and the second open end (18). A closure member (42) is sealingly slidably movable in the tube (14) and is provided with a first circumferential sealing edge (60), the first sealing edge (60) being adapted to removably abut against the first valve seat (36). The closure member (42) is further provided with a second circumferential sealing edge (66), the second sealing edge (66) being adapted to removably abut against the second valve seat (38).

REFERENCES:
patent: 246132 (1881-08-01), Hastings
patent: 1122480 (1914-12-01), Cooper
patent: 1245516 (1917-11-01), Scheelk
patent: 2976009 (1961-03-01), Hartmann
patent: 3330294 (1967-07-01), Manning et al.
patent: 5236014 (1993-08-01), Buls et al.
patent: 985525 (1982-12-01), None

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