Pumps – Motor driven – Electric or magnetic motor
Patent
1987-08-20
1988-09-13
Croyle, Carlton R.
Pumps
Motor driven
Electric or magnetic motor
417315, 222383, 141 27, 1841052, F04B 1502
Patent
active
047706139
ABSTRACT:
A device for dispensing a viscous fluid from and charging a viscous fluid into a canister mounted on a housing of the device is disclosed. The device comprises a reversible auger-type pump including an auger having first and second ends. The first end of the auger is in communication with a nozzle conduit for conducting a viscous fluid between the first end of the auger and a nozzle provided on the nozzle conduit. The second end of the auger is in communication with the canister. The device further includes a motor and associated gearing for connecting the motor to the auger in driving relationship. Power cell means are provided to supply current to the motor. The polarity of the current so supplied is controllable by a switch so that, when current of a given polarity is supplied to the motor, the auger will rotate in a first direction to fill the canister and when the polarity of the current is reversed, the auger will rotate in the opposite direction to dispense from the canister. The device may be equipped with a two-speed gear box to provide additional control over discharge and filling rates in response to a variety of considerations including fluid viscosity. Additionally, the dispenser may be equipped for discharging a metered amount of fluid.
REFERENCES:
patent: Re26180 (1967-04-01), Frenzel et al.
patent: 987962 (1911-03-01), Courtney
patent: 3987869 (1976-10-01), Bowers
patent: 4004862 (1977-01-01), Hill
patent: 4144913 (1979-03-01), Akers et al.
patent: 4257540 (1981-03-01), Wegmann et al.
Hoover Steven J.
Stewart Charles M.
Croyle Carlton R.
Purdue David C.
Purdue John C.
Szczecina Jr. Eugene L.
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