Machine for continuous pumping of plastic materials

Details Machine for continuous pumping of plastic materials Machine for continuous pumping of plastic materials

1976-07-26

1978-07-04

Mancene, Louis G.

17 38, A22C 700

Patent

active

040979628

ABSTRACT:
A compact, yet easy-to-clean machine has a pair of pumping plungers that reciprocate alternately to force plastic materials, such as food products, out of their respective pump chambers and into a common delivery conduit, thereby effecting substantially continuous operation. Each plunger has a chamber-defining sleeve associated therewith which precedes the plunger into the product supply so as to load the sleeve in readiness for the oncoming plunger. The plungers and their sleeves are operated by a common control and operating pack of hydraulic power devices and pneumatic limit switches located behind the plungers and sleeves within the cabinet of the machine, and the pack is journaled on the cabinet by spherical bearings which enable the pack and the plungers and sleeves to be cocked upwardly as a unit out of the cabinet into an access position for cleaning. Two spherical bearings are provided, one for each of the plungers, and they are axially aligned with the plungers so as to receive the rearward thrust thereof at the most favorable locations for structural reliability.

REFERENCES:
patent: 78555 (1868-06-01), Troxell
patent: 736720 (1903-08-01), Hahn
patent: 1573150 (1926-02-01), Fay
patent: 2766079 (1903-08-01), Browne
patent: 2991711 (1961-07-01), Ehrhard et al.
patent: 3014767 (1961-12-01), Thrasher et al.
patent: 3108318 (1963-10-01), Miller et al.
patent: 3456285 (1969-07-01), Miller et al.
patent: 3627389 (1971-12-01), Foote, Jr. et al.
patent: 3876087 (1975-04-01), Osta

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