Dispensing – Resilient wall – Supply container delivering to receiving chamber
Patent
1994-08-01
1995-10-31
Shaver, Kevin P.
Dispensing
Resilient wall
Supply container delivering to receiving chamber
222190, 222209, 2223219, 239330, B65D 3700
Patent
active
054622085
ABSTRACT:
The present invention provides a manually operated dispensing system for dispensing a liquid product in atomized or foam form. More particularly, the present invention provides an improved manually operated pump to for use in such dispensing systems which incorporates at least one collapsible bellows as a pump chamber. The use of a bellows as the air chamber in an air/liquid pump mechanism allows the pressure/volume profile of the air supply to be tailored to supply the desired air/liquid ratio throughout the travel of the pump mechanism. The shape of the air bellows is preferably selected to provide an is initially large volume reduction in the air chamber as the bellows collapses to provide a rapid rise in air pressure available for dispensing. In a preferred embodiment, dual bellows are utilized (one for liquid, one for air) in a concentric arrangement to allow the pressure/volume profile for each to be tailored to achieve the desired spray or foam characteristics. Inlet and outlet valves are unitarily formed with the liquid bellows and the use of a pre-compression mechanism for the liquid outlet valve allows the air pressure to build to the level required for satisfactory performance before the liquid begins to flow.
REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 2774518 (1956-12-01), Greene
patent: 2833448 (1958-05-01), Lerner
patent: 3162335 (1964-12-01), Kogan et al.
patent: 3406909 (1968-10-01), Pfeiffer
patent: 3473524 (1969-10-01), Drewe
patent: 3910458 (1975-10-01), Ewald
patent: 3973700 (1976-08-01), Schmidt et al.
patent: 3976223 (1976-08-01), Jass et al.
patent: 4340154 (1982-07-01), VanManen
patent: 4420098 (1983-12-01), Bennett
patent: 4640440 (1987-02-01), Ford, Jr. et al.
patent: 4801046 (1989-01-01), Miczka
patent: 4863070 (1989-09-01), Andris
patent: 4880161 (1989-11-01), Wright
patent: 4898307 (1990-02-01), Tiramani
patent: 4957218 (1990-09-01), Ford, Jr.
patent: 4972977 (1990-11-01), Moss et al.
patent: 4979646 (1990-12-01), Andris
patent: 5014881 (1991-05-01), Andris
patent: 5024243 (1991-06-01), Snyder
patent: 5129550 (1992-07-01), Eschbach
patent: 5205441 (1993-04-01), Andris
patent: 5238150 (1993-08-01), Williams
patent: 5271530 (1993-12-01), Uehira et al.
patent: 5289948 (1994-03-01), Moss et al.
patent: 5289952 (1994-03-01), Gueret
patent: 5303867 (1994-04-01), Peterson
patent: 5326000 (1994-07-01), Fuchs
patent: 5351862 (1994-10-01), Weag
patent: 5353961 (1994-10-01), Debush
Collias Dimitris I.
Lund Mark T.
Stahley Robert E.
Andes William Scott
Hilton Michael E.
Nesbitt Daniel F.
Shaver Kevin P.
The Procter & Gamble & Company
LandOfFree
Two-phase dispensing systems utilizing bellows pumps does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Two-phase dispensing systems utilizing bellows pumps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-phase dispensing systems utilizing bellows pumps will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1767471