Receptacles – Closures – With condition responsive vent or valve
Patent
1977-08-22
1978-09-26
Price, William
Receptacles
Closures
With condition responsive vent or valve
220208, 220228, 220366, B65D 5116, B65D 5306
Patent
active
041163575
ABSTRACT:
The top wall portion of the tank has a vent structure including a first tubular projection in communication with the inside of the tank and a second tubular projection of larger diameter mounted on the top wall portion in surrounding relationship with the first tubular projection. A cap is mounted on the first tubular projection, a skirt portion being disposed in the annular space between the first and second tubular projections. Water fill means are provided on the second tubular projection for filling the annular space with water to a depth covering the bottom of the skirt portion of the cap.
REFERENCES:
patent: 297668 (1884-04-01), Brownstein
patent: 459598 (1891-09-01), Stiles
patent: 702584 (1902-06-01), Paquette
patent: 1490186 (1924-04-01), Rowe
patent: 1754091 (1930-04-01), Friedman
patent: 1874742 (1932-08-01), Harnsberger
patent: 2946476 (1960-07-01), Ross
Hudgens Ronald C.
Owens-Corning Fiberglas Corporation
Pacella Patrick P.
Price William
Rose Paul J.
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