Manual atomizing pump with adjustable dosage

Details Manual atomizing pump with adjustable dosage Manual atomizing pump with adjustable dosage

1994-12-20

1996-10-22

Kaufman, Joseph

Dispensing

With discharge assistant

With discharge volume varying means

222309, 2223219, 222341, G01F 1106

Patent

active

055668658

ABSTRACT:
A metering pump for dispensing a predetermined volume of a liquid or semi-liquid fluid includes a pump body 1, a differential piston 51,52, and a turret 6 secured to a container cap 61. The pump body has a bottom end in communication with the container and a top end 11 capable of being fixed in a desired axial position on the turret. The piston is mounted for fluid-tight sliding in the pump body and has a rest position in which it defines a pump chamber 3, the piston being urged by a return spring 7 towards the turret. The top end 11 of the pump body is axially adjustable within the turret to vary the volume of the pump chamber, and includes integral barb projections 111 that bite into the softer turret material.

REFERENCES:
patent: 1241654 (1917-10-01), Osgood
patent: 2521433 (1950-09-01), White
patent: 3216624 (1965-11-01), Corsette
patent: 3711130 (1973-01-01), Betzler
patent: 4072247 (1978-02-01), Yamazaki
patent: 4856677 (1989-08-01), Brunet et al.
patent: 4930999 (1990-06-01), Brunet et al.
patent: 5096097 (1992-03-01), Lina
patent: 5183187 (1993-02-01), Martin et al.
patent: 5211429 (1993-05-01), Charlson et al.
patent: 5411181 (1995-05-01), Knickerbocker

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