Pipe joints or couplings – Pipe to discreet nipple or sleeve to plate – Plate clamped between flanged nipple and separate fastener
Patent
1997-07-08
1998-10-27
Arola, Dave W.
Pipe joints or couplings
Pipe to discreet nipple or sleeve to plate
Plate clamped between flanged nipple and separate fastener
2851393, 28514825, 285192, 285236, F16L 304
Patent
active
058269193
ABSTRACT:
A flexible penetration fitting is provided for sealing the hole through which a pipeline penetrates a wall of an underground containment box. The penetration fitting includes a flexible boot with a sealing flange for providing a first seal against the inside wall of the box. The sealing flange is held against the wall by a backing ring placed against the outside wall of the box. The backing ring includes a plurality of studs extending through the wall and into the box. A compression ring with a plurality of holes is placed over the sealing flange with the studs of the backing ring extending though the holes. A plurality of nuts are threaded to the studs to hold the sealing flange firmly against the inside wall of the box. The flexible boot also includes a sleeve for providing a second seal against the outside surface of the pipeline. The sleeve is stepped with different sized openings so as to be able to receive different sizes of pipelines. A hose clamp placed around the sleeve at the appropriate sized opening seals the sleeve against the pipeline.
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Containment Technologies Corporation, PERMA-FLEXX.TM. (4 pages).
Environ Products, Inc., Environ Safe Products designed for future generations, (12 pages).
Total Containment, U.S. Price Manual, Publication No. PM1500, Effective Date Apr. 1, 1995, Supersedes May 1, 1994 (pp. 1-34).
Containment Technologies Corporation, PERMA-FLEXX.TM. (4 pages).
Environ Products, Inc., Environ Safe Products designed for future generations, (12 pages).
Total Containment, U.S. Price Manual, Publication No. PM1500, Effective Date Apr. 1, 1995, Supersedes May 1, 1994 (pp. 1-34).
Bravo Sergio M.
Mukai Don K.
Arola Dave W.
S. Bravo Systems, Inc.
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