Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Patent
1991-03-14
1992-02-04
Walton, George L.
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
4255, 4256, 134102, 134169C, 222148, B08B 304, B08B 906, F16K 506
Patent
active
050852442
ABSTRACT:
An assembly is disclosed for cleaning a drain conduit. The assembly includes first and second conduit sections that are communicably connected to respective upstream and downstream sections of the drain conduit. A valve, interconnected between the first and second conduit sections, is selectively opened to permit communication between the first and second conduit sections and closed to restrict communication between the first and second conduit sections. A first connector section, communicably attached to and extending transversely from the first conduit section, is selectively engaged by one of a pressure source and a vacuum source to introduce, when the valve is closed, one of a pressure and vacuum, respectively, into first conduit section, whereby the upstream section of the drain conduit is cleaned. A second connector section, communicably attached to and extending transversely from the second conduit section, is selectively engaged by one of a pressure source and a vacuum source to introduce one of a pressure and vacuum, respectively, into the second conduit section whereby the downstream section of the drain conduit is cleaned.
REFERENCES:
patent: 376750 (1888-01-01), Murphy
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patent: 3936892 (1976-02-01), Miller
patent: 3961770 (1976-06-01), Wrasman
patent: 3985150 (1976-10-01), Kindersley
patent: 4070044 (1978-01-01), Carrow
patent: 4117694 (1978-10-01), Belmore
patent: 4257575 (1981-03-01), Runyan
patent: 4697787 (1987-10-01), Pelleboer
patent: 4760614 (1988-08-01), Harrison
patent: 4915133 (1990-04-01), Harrison
Noonan William E.
Walton George L.
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