Plastic dispenser for liquids or other substances
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United States of America Patent
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-
Nov 15, 1994
Grant Date -
N/A
app pub date -
Dec 15, 1992
filing date -
Dec 16, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dispenser (10) for dispensing, liquid substances or substances in the form of cream or paste, comprising a pump (1) in which in addition to the non-return valve (17), the elastic structure for returning the piston (3) into its rest position following the operation of the dispensing knob (10) are also of plastics material, and consist of a skirt (4A) which deforms elastically when the knob (10) is pressed. To make the dispenser (10) completely salvageable, all its constituent elements are of one and the same plastics material, which is of a type from which both substantially rigid pieces and substantially elastically deformable pieces can be formed. Such a plastics material is for example polyethylene.
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Cited Art Landscape
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