Spring-loaded tube squeezing device

Dispensing – Collapsible wall-type container – With wall-collapsing means

Reexamination Certificate

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Details

C222S101000

Reexamination Certificate

active

06966457

ABSTRACT:
A device for squeezing various household collapsible tubes comprises two lever handles, two pintles, two torsional springs, a primary roller, and a secondary roller. The lever handles are held together by and are free to rotate about the two pintles, forming a double non-crossing class1lever arrangement. The rollers, held in gudgeons by snap fit, are also free to rotate. The primary roller is distinguished from the secondary roller by having a crank at one end. The torsional springs, anchored by the pintles, provide a torque which causes the two rollers to clamp together. Operation of the tube squeezing device proceeds by inserting the crimped end of a collapsible tube between the rollers and turning the crank, thereby turning the rollers so as to squeeze the tube flat and to push its contents toward the nozzle end. Insertion and extraction of the tube is effected most readily by applying a compressive force to the two lever handles, creating a gap between the rollers for the tube to easily pass through.

REFERENCES:
patent: 11497 (1854-08-01), Farris
patent: 1773104 (1930-09-01), Johnson
patent: 3414166 (1968-12-01), Martin
patent: 3586213 (1971-06-01), Gill
patent: 4405062 (1983-09-01), Tschida, Sr.
patent: 5118011 (1992-06-01), Kopp
patent: 5495801 (1996-03-01), Dankert
patent: 2002/0011497 (2002-01-01), Farris
patent: 2052434 (1981-01-01), None

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