Plumbing testing devices

Details Plumbing testing devices Plumbing testing devices

2005-01-11

2005-01-11

Cygan, Michael (Department: 2855)

Measuring and testing

With fluid pressure

Clamp, plug, or sealing feature

C473S040000, C473S049000, C138S090000, C138S091000, C138S094000

Reexamination Certificate

active

06840090

ABSTRACT:
A plumbing testing device (10) has a pair of aligned and closed pipe sections (12and14) with open sides facing in opposite directions. The plumbing testing device (10) is longitudinally collapsible to facilitate removal from between pipe ends (19and20). The pipe sections (12and14) each have a port (32, 35), a transparent hose (38) connects the ports to one another, and a valve (30) controls the flow of water between the pipe sections (12and14) through the hose (38).

REFERENCES:
patent: 755082 (1904-03-01), Vanderman
patent: 1451644 (1923-04-01), Zachary
patent: 1558161 (1925-10-01), Gunderson
patent: 1573410 (1926-02-01), McCabe et al.
patent: 1985813 (1934-12-01), Baden
patent: 2062527 (1936-12-01), Postlewaite
patent: 4103537 (1978-08-01), Victor
patent: 4542642 (1985-09-01), Tagliarino
patent: WO 9102186 (1991-02-01), None

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