Bottles and jars – Closures – Cap type
Patent
1990-09-05
1991-10-29
Marcus, Stephen
Bottles and jars
Closures
Cap type
215352, 215354, B65D 4128
Patent
active
050608134
ABSTRACT:
In containers (1( with a screw cap closure (2), both of plastic, the sealing and the firm fit of the screw-cap (2) are improved, in the event of the container dropping, by virtue of the fact that a conical sealing ring (10), which presses from the inside against the mouth rim (5) of the pouring spout (3), is combined with an O-ring seal (13), which is inserted in an undercut annular groove (11) sunk in the end face (6) of the screw-cap closure (2) between the conical sealing ring (10) and the peripheral wall (7), and that in the closed condition the mouth rim (5) bears tight against the peripheral wall (7).
REFERENCES:
patent: 1516129 (1924-11-01), Wiking
patent: 3480169 (1969-11-01), Hammes
patent: 3677430 (1972-07-01), Yates, Jr.
patent: 4346812 (1982-08-01), Banich, Sr.
patent: 4823970 (1989-04-01), Young
patent: 4844273 (1989-07-01), Hawkins
patent: 4896782 (1990-01-01), Hawkins et al.
patent: 4971774 (1990-11-01), Schwanke et al.
Engst Johannes
Gollasch Albert
Bayer Aktiengesellschaft
Marcus Stephen
Schwarz Paul A.
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