Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Patent
1981-09-22
1983-07-19
Walton, George L.
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
137299, 137300, 13750513, 134166C, 222148, 251 50, B08B 902, F16K 31122
Patent
active
043938914
ABSTRACT:
The present invention relates to a device for periodically rinsing a water cock countersunk in the ground. A drainpipe is connected between the water cock and a closing member of an extension piece. The drainpipe includes a valve body which is opened by the water pressure prevailing in the extension pipe when the water cock is initially opened. After a predetermined period of time the valve body is closed. Thus, the present invention ensures that after the water cock is opened dirt is flushed away through the drainpipe which is subsequently automatically closed after a predetermined time. After the drainpipe is closed, a valve member connected to the extension pipe can be opened and only pure water will be supplied.
REFERENCES:
patent: 574744 (1897-01-01), Malmquist
patent: 1297001 (1919-03-01), O'Shields
patent: 1501799 (1924-07-01), Neumeyer
patent: 3262464 (1966-07-01), Frantz
patent: 3559677 (1971-02-01), Barosko
patent: 3576193 (1971-04-01), Rothfuss
patent: 3650471 (1972-03-01), Sutton
patent: 3913602 (1975-10-01), Yoon
patent: 3980097 (1976-09-01), Ellis
Snoek Govert J.
Tuil William J.
Ocean B.V.
Walton George L.
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