Measuring and testing – With fluid pressure – Clamp – plug – or sealing feature
Patent
1990-05-25
1991-12-31
Noland, Tom
Measuring and testing
With fluid pressure
Clamp, plug, or sealing feature
138 90, G01M 328
Patent
active
050760955
ABSTRACT:
An apparatus for pressure testing a plumbing system having a fluid inlet assembly having an inlet connection, a pressure-actuated flow regulator valve, and a fluid inlet, all made from or lined with corrosion resistant materials. A paddle shaped member is coaxially coupled to a freely rotatable threaded cap member which removably engages the tee fitting in the plumbing system. O-rings along the outer edges of a paddle-shaped member serve to seat the paddle-shaped member into the inner diameter of the tee-fitting and seal the downstream portion of the Y or tee fitting from the upstream portion.
REFERENCES:
patent: 2299116 (1942-10-01), Svirsky
patent: 2422801 (1947-06-01), Rohling
patent: 3425439 (1969-04-01), Duffey et al.
patent: 3902697 (1975-09-01), Robinson
patent: 4051717 (1977-10-01), Miller
patent: 4311038 (1982-01-01), Dunn
patent: 4429568 (1984-02-01), Sullivan
patent: 4542642 (1985-09-01), Tagliarino
patent: 4770029 (1988-09-01), Webber et al.
Noland Tom
Rosenbaum David G.
Roskos Joseph W.
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