Dispenser for discharging media
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 13, 2000
Grant Date -
N/A
app pub date -
Apr 11, 1996
filing date -
Nov 19, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A discharge apparatus (1) comprises within the pump housing (2) an integral full-length working member (10) having spring sections (28, 29, 30) and sections located between these which form a valve housing (18), fastening members for connecting to a piston (12) and the like. The spring section in each case may be configured as a helical or torsion spring having a closed spring jacket, thus resulting in simple manufacture and simple assembly with high functional reliability.
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