Food pump

Details Food pump Food pump

1982-06-01

1984-02-14

Smith, Leonard E.

Pumps

Motor driven

Including means for facilitating assembly or disassembly of...

417403, 417454, 417519, 92128, 13762524, 251214, F04B 4900

Patent

active

044313845

ABSTRACT:
A reciprocating food pump for pumping viscous edible material has the cylinder removably clamped to a base plate. The piston of the pump cylinder is actuated by a reciprocating, compressed air motor having a common piston rod connecting the air piston and pump piston. The air cylinder is pivoted to the base plate so that the pump cylinder may be unclamped from the base plate and moved upwards sufficiently to pull the cylinder away from the piston. A rotating plug valve is used on the end of the pump cylinder. The plug is held in place by a stem extending through a flat valve plate. A seal is placed between a sleeve on the end of the valve stem and the valve plate and another seal between the valve stem and the sleeve. Upon each suction stroke of the pump, the vacuum within the pump pulls the valve plug within the cylinder, which will be transmitted to the stem, and increase the pressure between the sleeve and the flat valve plate insuring a good seal upon each suction stroke. Also, the valve can be disassembled by pulling the pin from the valve stem and pulling the plug out through the cylinder.

REFERENCES:
patent: 1966498 (1934-07-01), Gross
patent: 2702409 (1955-02-01), Loomis
patent: 2957430 (1960-10-01), Naef
patent: 3227325 (1966-01-01), Bates
patent: 3350190 (1967-10-01), Piel
patent: 3776667 (1973-12-01), Berglund et al.
patent: 3874825 (1975-04-01), Jentsch
patent: 4358257 (1982-11-01), Seiler et al.

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