Corporate stop assembly

Details Corporate stop assembly Corporate stop assembly

1991-03-21

1993-04-06

Gorski, Joseph M.

Metal working

Means to assemble or disassemble

Coupling to conduit

2924355, 29523, 29890148, 285197, B23P 1904

Patent

active

051991454

ABSTRACT:
A corporate stop is shown for sealing an opening in the sidewall of a host pipe. The stop has a threaded stem with an enlarged head portion and a neck portion of reduced size. A flexible sleeve member is received about the neck portion of the stem and has an upper end and a lower end which accommodates the enlarged head portion of the stem. A compression washer has an upper side and a lower side which fits about the sidewall of the conduit. The washer also has an opening which is alignable with an opening provided in the sidewall of the conduit. The lower side of the washer has a recess for receiving the upper end of the sleeve member when the stop is installed on the conduit performing an external seal with respect to the conduit. A clamp nut is engageable with the neck portion of the threaded stem for forcibly moving the lower end of the sleeve member over the head portion of the stem to expand the lower end of the sleeve member and form an internal seal with an opening in the conduit.

REFERENCES:
patent: 614547 (1898-11-01), Haworth
patent: 633537 (1899-09-01), Stewart
patent: 1307755 (1919-06-01), Ross
patent: 2021176 (1935-11-01), Curtis
patent: 3333724 (1967-08-01), Croft et al.
patent: 3613936 (1971-10-01), Kaiser
patent: 3694009 (1972-09-01), Phillips
patent: 3730565 (1973-05-01), Steudler, Jr.
patent: 4303101 (1981-12-01), Tholen
patent: 4411458 (1983-10-01), Strunk et al.
patent: 4509243 (1985-04-01), Schneider et al.
patent: 4634307 (1987-01-01), Gnaedinger et al.
patent: 4654942 (1987-04-01), Rush et al.
Hays, Hays-Seal Corporation Stops, A Non-dated Page copied From A Hays' Catalog.

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