Injection molded sliding vane pump

Details Injection molded sliding vane pump Injection molded sliding vane pump

1984-01-13

1985-09-24

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264242, 425577, B29B 300

Patent

active

045432287

ABSTRACT:
An injection molding process for fabricating a sliding vane pump with a close tolerance between the rotor assembly and the pump chamber using two semi-circular inserts to hold the rotor assembly while the molten plastic is injected to form the housing. The inserts function to stop the molten plastic from entering the rotor assembly during injection and upon removal to form the inlet and outlet ports of the pump.

REFERENCES:
patent: 2925786 (1960-02-01), Hill
patent: 4076791 (1978-02-01), Barter et al.
patent: 4337574 (1982-07-01), Hughes et al.

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