O-ring mold

Details O-ring mold O-ring mold

1976-05-03

1977-08-23

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With normally open stock chamber

425DIG47, 249105, B29F 100

Patent

active

040437272

ABSTRACT:
A mold for forming O-ring seals free of flash at their inside and outside diameters. The mold includes a first mold section having a frustrum extending from a surface thereof and a second mold section having a cavity for receiving said frustrum, said frustrum and recess having annular grooves juxtaposed to define a mold cavity for an O-ring seal. Mating surfaces of the frustrum and recess act to seal one side of the cavity while spaced surfaces on the opposite side of the cavity define an annular orifice extending into said mold cavity. The mold further includes a loading chamber and means for injecting a seal composition through said orifice into said mold cavity for curing.

REFERENCES:
patent: 3063097 (1962-11-01), Jutzi
patent: 3095611 (1963-07-01), Borah
patent: 3241845 (1966-03-01), Smith et al.
patent: 3270373 (1966-09-01), Jagger et al.
patent: 3536806 (1970-10-01), Jackson

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