Dispensing – With discharge assistant – Motor operated
Reexamination Certificate
2008-01-15
2008-01-15
Shaver, Kevin (Department: 3754)
Dispensing
With discharge assistant
Motor operated
C417S470000, C074S567000, C074S569000
Reexamination Certificate
active
07318539
ABSTRACT:
A battery operated, handheld fluid dispenser comprises a supply container having a body portion and a narrow neck extending upwardly therefrom. A pump and discharge unit is mounted on the upper end of the neck and comprises a pump diaphragm and pump chamber for pumping liquid from the container to a discharge nozzle. A battery powered pump drive unit is mounted on the container and comprises an electric motor having an output shaft coupled with the pump diaphragm through a cam and cam follower arrangement to displace the diaphragm through a pump stroke when the motor is energized. The cam is rotatably driven by the motor, and the cam follower is attached to the diaphragm, whereby rotation of said cam axially displaces the diaphragm, and the cam and cam follower have interengaging dual cam faces for balancing lateral forces therebetween during rotation of said cam relative to said cam follower.
REFERENCES:
patent: 2629539 (1953-02-01), Drewes, Jr.
patent: 3120347 (1964-02-01), Duke
patent: 3173584 (1965-03-01), Giavasis
patent: 3255967 (1966-06-01), Kenney
patent: 3762647 (1973-10-01), Tada
patent: 3901449 (1975-08-01), Bochmann
patent: 3904116 (1975-09-01), Jones et al.
patent: 3973700 (1976-08-01), Schmidt et al.
patent: 3993250 (1976-11-01), Shure
patent: 3995774 (1976-12-01), Cooprider et al.
patent: 4082223 (1978-04-01), Nozawa
patent: 4154375 (1979-05-01), Bippus
patent: 4155487 (1979-05-01), Blake
patent: 4187959 (1980-02-01), Pelton
patent: 4199083 (1980-04-01), LoMaglio
patent: 4204614 (1980-05-01), Reeve
patent: 4230277 (1980-10-01), Tada
patent: 4260079 (1981-04-01), Cary et al.
patent: 4273290 (1981-06-01), Quinn
patent: 4558821 (1985-12-01), Tada et al.
patent: 4655690 (1987-04-01), Boedecker et al.
patent: 4693423 (1987-09-01), Roe et al.
patent: 4790454 (1988-12-01), Clark et al.
patent: 4819835 (1989-04-01), Tasaki
patent: 4858788 (1989-08-01), Meckenstock
patent: 4873932 (1989-10-01), Adams
patent: 4898307 (1990-02-01), Tiramani
patent: 4911361 (1990-03-01), Tada
patent: 4958754 (1990-09-01), Dennis
patent: 5150841 (1992-09-01), Silvenis et al.
patent: 5299717 (1994-04-01), Geier
patent: 5303867 (1994-04-01), Peterson
patent: 5338495 (1994-08-01), Steiner et al.
patent: 5341965 (1994-08-01), Maas et al.
patent: 5356049 (1994-10-01), Harris et al.
patent: 5385302 (1995-01-01), Foster et al.
patent: 5397034 (1995-03-01), Wunsch
patent: 5402916 (1995-04-01), Nottingham et al.
patent: 5531137 (1996-07-01), Guilford
patent: 5716007 (1998-02-01), Nottingham et al.
patent: 5716008 (1998-02-01), Nottingham et al.
patent: 6405698 (2002-06-01), Steinmetz
patent: 3124441 (1982-06-01), None
patent: 3314021 (1984-10-01), None
patent: 0117898 (1984-09-01), None
Fuchs, Jr. Donald C.
Saunders Craig M.
Vitantonio Marc L.
Wanhainen Daniel J.
Fay Sharpe LLP
Power Sprayer LLC
Shaver Kevin
Turung Brian E.
Tyler Stephanie E.
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