Dispensing – With recorder – register – indicator – signal or exhibitor – Position or extent of motion indicator
Patent
1988-06-24
1990-10-23
Rolla, Joseph J.
Dispensing
With recorder, register, indicator, signal or exhibitor
Position or extent of motion indicator
222253, 222309, B67D 508, G01F 1104
Patent
active
049645340
ABSTRACT:
A liquid dispenser having two separate sized dispensing chambers. The first being larger volume dispenser having a piston which is of variable stroke to move within a first chamber to draw liquid into the chamber and then to force the liquid out of said chamber. The second being a smaller volume dispenser which comprises a second piston which is of variable stroke and moves within a bore in said first piston to draw liquid into said bore and to force liquid out of said bore.
REFERENCES:
patent: 2988248 (1961-06-01), Bender et al.
patent: 3052376 (1962-09-01), Fogg
patent: 3064864 (1962-11-01), O'Neill, Jr.
patent: 4074831 (1978-02-01), Roach
patent: 4781312 (1988-11-01), Strazdins
Reiss Steve
Rolla Joseph J.
Strazdins (International) Pty. Limited
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