Method of producing vent holes in tire molds

Details Method of producing vent holes in tire molds Method of producing vent holes in tire molds

1976-01-26

1977-05-17

Roethel, John E.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

164108, 164112, 425 28D, 425812, B22D 3100

Patent

active

040232689

ABSTRACT:
A tire mold and method for producing vent holes therein comprising placing metal tubing in the desired locations on a female core for producing the tire mold, which after the casting metal is poured onto the core, encompasses the metal tubing leaving a vent hole in the metal of the tire mold at the respective tubing, after which the core material is removed. This eliminates conventional practice of drilling vent holes in a tire mold and provides for vent holes in areas heretofore inaccessible.

REFERENCES:
patent: 2756460 (1956-07-01), Heintz
patent: 2848910 (1958-08-01), Bastian
patent: 3213534 (1965-10-01), Swanke
patent: 3439732 (1969-04-01), Andreoli

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