Self-locking, self-sealing inspection port

Details Self-locking, self-sealing inspection port Self-locking, self-sealing inspection port

1996-11-05

2000-07-04

Pollard, Steven

Receptacles

Closures

Removable closure situated by resilient distortion and...

220789, 220801, B65D 3900

Patent

active

060825766

ABSTRACT:
The present invention is an inspection port that is self-locking and self-sealing when inserted in smooth, embossed, or corrugated metal jackets which contain an insulation layer around process equipment such as reactors, heat exchangers, distillation towers, storage tanks, and pipelines. The inspection port is made from an elastomeric material and includes a tubular body having an outer flange and two locking ridges which are positioned to form a short section for gripping non-corrugated metal and a long section for gripping corrugated metal.

REFERENCES:
patent: 2737205 (1956-03-01), Stringfield
patent: 3133666 (1964-05-01), Henchert
patent: 3945529 (1976-03-01), Haag
patent: 4202463 (1980-05-01), Mogler
patent: 4223800 (1980-09-01), Fishman
patent: 4667842 (1987-05-01), Collins
patent: 5014866 (1991-05-01), Moore

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