Dispensing – Resilient wall – Fluid pressure generating pump or pulsator and/or removable...
Patent
1989-05-08
1990-10-16
Skaggs, H. Grant
Dispensing
Resilient wall
Fluid pressure generating pump or pulsator and/or removable...
222387, 417437, 417472, B65D 3700
Patent
active
049628518
ABSTRACT:
A pump type dispenser having a bellows or diaphragm formed by a plurality of hollow ribs and valleys therebetween extending between a peripheral skirt and a central barrel. The valleys are inclined downwardly from the skirt to the barrel insuring the strength and resiliency of the diaphragm to return the diaphragm to its relaxed position after repeated activation.
REFERENCES:
patent: 2632475 (1953-03-01), Elo
patent: 2774518 (1956-12-01), Greene
patent: 3870200 (1975-03-01), Spatz
patent: 4830228 (1989-05-01), Fillmore
McKinney James C.
Schuckmann Alfred von
Bollinger David H.
Colgate-Palmolive Company
Skaggs H. Grant
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