Pump dispenser with one-piece stretchable biasing member and val

Details Pump dispenser with one-piece stretchable biasing member and val Pump dispenser with one-piece stretchable biasing member and val

1982-07-09

1984-06-05

Rolla, Joseph J.

Dispensing

Resilient wall

Supply container delivering to receiving chamber

222321, 222341, 222380, 417566, B65D 3700, F05B 1100

Patent

active

044523793

ABSTRACT:
A manually-operated pump dispenser for dispensing liquids from a container. The dispenser includes a one-piece housing coupled to the container, a dip tube extending from the housing into the container, a one-piece pump member which is slidably supported in the housing and which has a trigger extending therefrom and a nozzle member at the end, a pair of one-way valves supported by the housing and pump member, and a resilient, annular biasing member which engages the housing and pump member, has a stretchable portion providing a restoring force to the pump member and forms a part of at least one of the one-way valves in the dispenser. In a first embodiment, the biasing member forms a part of each of the one-way valves, and in a second embodiment, it forms a part of the inboard one-way valve. In this second embodiment, the outboard valve is formed by the nozzle member and the pump member.

REFERENCES:
patent: 2368091 (1945-01-01), Andersen
patent: 2476545 (1949-07-01), Hayward
patent: 2702147 (1955-02-01), Brown
patent: 2753578 (1956-07-01), Lebet
patent: 2772817 (1956-12-01), Jauch
patent: 3258175 (1966-06-01), Taylor
patent: 3282472 (1966-11-01), Roder
patent: 3485419 (1969-12-01), Taylor
patent: 4046495 (1977-09-01), Grimm, Jr.
patent: 4072252 (1978-02-01), Steyns et al.
patent: 4101057 (1978-07-01), LoMaglio
patent: 4153186 (1979-05-01), Nye
patent: 4199083 (1980-04-01), LoMaglio
patent: 4201317 (1980-05-01), Aleff
patent: 4249681 (1981-02-01), French
patent: 4301948 (1981-11-01), Czech et al.
patent: 4330071 (1982-05-01), Ohlson
patent: 4347953 (1982-09-01), Bauer

Affiliated with

Also associated with

Rating

Pump dispenser with one-piece stretchable biasing member and val does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pump dispenser with one-piece stretchable biasing member and val, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump dispenser with one-piece stretchable biasing member and val will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1493911