Receptacles – Closures – Crossbar carries closure and serves as closure fastener
Patent
1978-12-20
1980-01-01
Hall, George T.
Receptacles
Closures
Crossbar carries closure and serves as closure fastener
220203, 220206, B65D 4528
Patent
active
041812387
ABSTRACT:
Improvements in venting manhole covers for liquid containing vessels, tanks, containers and particularly mobile truck tanks for transporting volatile liquids; improved primary venting means enabling vessel closures to vent under internal pressures; improved spring loaded pressure relief means for tank closures.
REFERENCES:
patent: 3339791 (1967-09-01), De Frees
patent: 3344947 (1967-10-01), Gallup
patent: 3744670 (1973-07-01), De Frees
patent: 4127215 (1978-11-01), Morrison
Arnold Paul W.
Borst Ronald W.
Scofield William L.
Scott Vern D.
Clay & Bailey Manufacturing Company
Hall George T.
Scofield Thomas M.
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