Hand-held dispenser with automatic cap venting

Details Hand-held dispenser with automatic cap venting Hand-held dispenser with automatic cap venting

1985-11-14

1987-03-03

Rolla, Joseph J.

Dispensing

With discharge assistant

Fluid pressure

222520, 215307, 137852, B65D 8300

Patent

active

046469478

ABSTRACT:
A hand-held dispenser for a flowable product capable of gassing, comprising a container having a neck part at its top, and a dispensing cap having a body part provided with a discharge opening. The cap-body and container-neck parts are cooperable to mount the cap on the container, and are constituted to form a cooperable automatic pressure-relief valving device which, in response to increased gas pressure in the container, vents a limited quantity of gas when the container is upright. This prevents expelling or splattering of the container contents. A first annular sealing surface on one part and a cooperable annular sealing surface on the other part effect a seal when the cap is fully seated on the container, and permit escape of gas when the cap is slightly unseated. A projection on one part is engageable with a projection on the other part to provide a biasing action which returns the cap to fully-seated position after the venting. The cap part has a unique venting passage exterior to the seal, to conduct the vented gas downward past outwardly-projecting portions of the container neck part. Either the container neck part, or the cap body part is of yieldable plastic, or both may be yieldable.

REFERENCES:
patent: 2769580 (1956-11-01), Hudson et al.
patent: 3527388 (1970-09-01), Cooprider
patent: 3918611 (1975-11-01), Ewald
patent: 4231489 (1980-11-01), Malone

Affiliated with

Also associated with

Rating

Hand-held dispenser with automatic cap venting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hand-held dispenser with automatic cap venting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hand-held dispenser with automatic cap venting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1012553