Pump dispenser
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 22, 2002
Grant Date -
N/A
app pub date -
Nov 28, 2001
filing date -
Nov 28, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pump dispenser includes: a valve block having a first slide contact surface, a discharge opening and a suction opening; a pump block having a second slide contact surface and a plunger insert hole; a plunger slidably inserted to the plunger insert hole; a pump-driving shaft for rotating the pump block to advance and retract the plunger; and a motor for controllably rotating the pump-driving shaft per one rotation, the pump-driving shaft being attached with a roller, the pump dispenser further having a guide member capable of adjusting inclination angle thereof relative to a reference surface orthogonal with an axis of the pump-driving shaft, the guide member guiding the roller moving in accordance with a rotation of the pump-driving shaft to advance and retract the pump-driving shaft.
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