Spray pump

Details Spray pump Spray pump

1989-08-14

1990-07-17

Shaver, Kevin F.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222385, 239333, B05B 1102

Patent

active

049415956

ABSTRACT:
A spray pump comprising a main cylinder and a secondary cylinder with a main piston and a secondary piston, first and second springs are provided for urging the pistons to particular positions. A fixed attachment between the main piston and the secondary cylinder and the latter forms a space with a closed bottom and an open upper end through which the interior of the main cylinder and the secondary cylinder are in communication.

REFERENCES:
patent: Re28366 (1975-03-01), Pechstein
patent: 3627206 (1971-12-01), Boris
patent: 4025046 (1977-05-01), Boris
patent: 4082222 (1978-04-01), Boris
patent: 4183449 (1980-01-01), Blake
patent: 4189064 (1980-02-01), O'Neill et al.
patent: 4305530 (1981-12-01), Nozawa

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