Scraping element, piston and arrangement for emptying a bag-like envelope containing a pasty liquid
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 28, 2000
Grant Date -
N/A
app pub date -
Aug 23, 1999
filing date -
Mar 24, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement for emptying a bag like envelope containing a pasty liquid consists substantially of a rigid housing for the envelope and an axially movable piston for compressing the envelope and for discharging the liquid through a discharge opening in the housing. The piston comprises on its outer edge at least one scraping element which is movable between an insertion position, and a scraping position. In the insertion position, the scraping edge of the scraping element is spaced from the inner surface of the housing. In the scraping position, the scraping edge is pressed against the inner surface of the housing.
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Family
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