Dispensing – With discharge assistant – Fluid pressure
Patent
1976-06-01
1978-03-14
Knowles, Allen N.
Dispensing
With discharge assistant
Fluid pressure
B65D 8300
Patent
active
040787052
ABSTRACT:
A valve assembly for a small hand-held pressurized dispenser, such as an aerosol can, comprising the known form of valve mounting cup provided with a boss having a top wall and a peripheral side wall, a valve housing located at least partially in the boss and carrying a spring-loaded valve member, and a gasket of a flexible, resilient material trapped between and forming a seal between a rim on the housing and the top wall. The assembly is distinguished by the feature of an annular step in the boss facing away from the top wall and a flange on the valve housing which engages against the step to define the distance between the rim and the top wall and thereby limit the sealing pressure applied to the gasket. The flange may be integral with the rim in which interruptions in the step form gassing paths for filling the dispenser, or alternatively the flange and rim are separate in which case discontinuities such as notches and perforations in the rim and flange form a gassing path.
REFERENCES:
patent: 2631814 (1953-03-01), Ablanalp
Aerosol Inventions & Development, S.A. Aidsa
Knowles Allen N.
LandOfFree
Valves for pressurized dispensers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valves for pressurized dispensers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valves for pressurized dispensers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2227526