Dispensing closure utilizing a sealing element supported by a wa

Details Dispensing closure utilizing a sealing element supported by a wa Dispensing closure utilizing a sealing element supported by a wa

1978-10-16

1980-08-26

Tollberg, Stanley H.

Dispensing

Movable material discharge guide

Swingable

B67B 712

Patent

active

042191386

ABSTRACT:
A dispensing closure can be constructed utilizing a washer spring around an opening through the cap of such a closure so as to resiliently bias a sealing surface carried by the washer spring against the spout of such a closure.

REFERENCES:
patent: 2793795 (1957-05-01), Wilson et al.
patent: 2800259 (1957-07-01), Wilson et al.
patent: 3023939 (1962-03-01), Gustafson
patent: 3477618 (1969-11-01), Hazard
patent: 3653546 (1972-04-01), Hazard
patent: 3827671 (1974-08-01), Bolden et al.
patent: 4073473 (1978-02-01), Rihm

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