Portable dispenser for viscous material
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United States of America Patent
Stats
-
Jan 22, 1991
Grant Date -
N/A
app pub date -
May 22, 1989
filing date -
May 20, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a manually held dispenser for dispensing flowable material such as a mastic sealant from a cartridge, comprising a plunger for forcing material from the cartridge on actuation of an electric motor drive to move the plunger by a rack and pinion in a direction to dispense sealant from the cartridge. When it is desired to replace a spent cartridge, the pinion is disengaged fromt he rack and the plunger can then be withdrawn or retracted to a starting positon in a direction opposite to the one direction.
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