Fluid handling – Systems – System with plural openings – one a gas vent or access opening
Patent
1978-09-28
1980-08-19
Cline, William R.
Fluid handling
Systems
System with plural openings, one a gas vent or access opening
137517, 220301, 220304, 220366, F16K 1518
Patent
active
042179300
ABSTRACT:
A venting port for refrigerated shipping containers is provided to facilitate the introduction and movement of refrigerated atmospheric air or refrigerant gas through the container. The venting port comprises a pair of flanged rings adapted to engage an opening formed in the wall of the container and to sandwich said wall therebetween, said rings defining a central port extending from the interior to the exterior of the container, a rotatable closure slidably disposed on the inside of the container and movable between a closed position in engagement with one of said flanged rings to seal the port and an open position spaced apart from said flanged rings to permit the entry of ambient air, means attached to the first flanged ring for guiding the closure between the open and closed positions, and locking means comprising a plurality of cooperating radially disposed teeth on one of said flanged rings and the closure to secure the closure in the closed position.
REFERENCES:
patent: 1511610 (1924-10-01), Holmes
patent: 2452612 (1948-11-01), Swenberg
patent: 2757819 (1956-08-01), Badger, Jr.
patent: 3556142 (1971-01-01), Sabin et al.
patent: 3782411 (1974-01-01), Turner
patent: 4032036 (1977-06-01), Sycle, Jr.
patent: 4140151 (1979-02-01), Van Becelaere
Dallas Charles
Lerner Marc
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