Piston metering apparatus of a reaction injection molding machin

Details Piston metering apparatus of a reaction injection molding machin Piston metering apparatus of a reaction injection molding machin

1984-09-28

1987-02-17

Jenkins, Robert W.

Agitating

Rubber or heavy plastic working

With specified feed means

92168, 222372, 2221465, 277125, B28C 704

Patent

active

046435816

ABSTRACT:
A piston metering apparatus for the metering of the components of a reaction injection molding machine comprising a metering cylinder (2) the cylinder space of which is surrounded by a cylinder wall, a metering piston (10) sealed in relation to the cylinder wall by means of a sealing unit, a cylinder base (3), component inlet (4) and component outlet lines (5) connected with the metering cylinder (2), and a metering piston (10) coupled with the hydraulic piston rod of a hydraulic drive unit (12). In order to simplify the inspection and maintenance of such a piston metering apparatus, the metering piston (10) is in the form of a plunger piston and the sealing unit is contained in a sealing cartridge (9) releasably fastened to the upper edge of the metering cylinder (2).

REFERENCES:
patent: 2610613 (1952-09-01), Bryant
patent: 3132568 (1964-05-01), Strader
patent: 3419280 (1968-12-01), Wheeler
patent: 3901408 (1975-08-01), Boden et al.
patent: 3989258 (1976-11-01), Kunderman
patent: 4258612 (1981-03-01), Kuhlmann
patent: 4319517 (1982-03-01), McCaleb
"Polyurethane-Filler Metering Technology Employing the KM-Poston Mettering Unit" Krauss-Maffei A.G., 1st Ed., 6/7/83.

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