Pumps – Motor driven – Including manual – mechanical – or diverse drive
Patent
1981-04-28
1983-08-23
Croyle, Carlton R.
Pumps
Motor driven
Including manual, mechanical, or diverse drive
417534, F04B 3500
Patent
active
044001436
ABSTRACT:
A dual drive pump is disclosed in which the differential area, double-acting piston and cylinder pump can be operated from a rotary power source or manually operated by pivotal movement of a lever. The manual operation lever is pivoted to the cylinder housing. A Scotch yoke cam drive is provided with a rotary shaft journaled on the manual lever. A Scotch yoke housing is connected to the piston and encloses a cam on the rotary shaft. A lock pin is installable in two different locations. When manual operation is required, the lock pins locks the shaft against rotation with respect to the lever. For power operation, the lock pins locks the lever in a fixed position so that the shaft is in turn held in a fixed location.
REFERENCES:
patent: Re23067 (1948-12-01), Baker
patent: 854353 (1907-05-01), Hobart
patent: 1289064 (1918-12-01), Culp
patent: 1303975 (1919-05-01), Shorb
patent: 2292527 (1942-08-01), Kraft
patent: 2668656 (1954-02-01), Booth, Jr. et al.
Croyle Carlton R.
Stout Donald E.
Teledyne Republic Manufacturing
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