Cleanout fitting combination

Details Cleanout fitting combination Cleanout fitting combination

1974-11-05

1976-11-23

Queisser, Richard C.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

220304, 277170, F16L 5510

Patent

active

039931021

ABSTRACT:
A plumbing cleanout fitting combination, of a body having a plug-closed access opening provided with a female standard tapered pipe thread, and a somewhat counter-bore-like seal seat around the outer margin of the opening; an elastomeric compressible gasket or seal ring in the seat; and a plug having a shoulder at its outer end to sealingly compress the ring and, on its inner end, an opening-engaging male thread, of pitch corresponding to the female thread, the male being either a standard straight or modified tapered pipe thread, diametrically proportioned to the female to enable the plug to be screwed in to seal without thread interference; whereby the body can accept an optional plug with a male standard tapered pipe thread sealing by tapered thread engagement without sealing gasket.

REFERENCES:
patent: 1436331 (1922-11-01), Ayling
patent: 2046700 (1936-07-01), Sander
patent: 2194147 (1940-03-01), Mauser
patent: 2689058 (1954-09-01), Schmid
patent: 3039494 (1962-06-01), Bradley
patent: 3157203 (1964-11-01), Ver Nooy
patent: 3255916 (1966-06-01), Rice
patent: 3434346 (1969-03-01), Demyon
patent: 3893487 (1975-07-01), Engelking

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