Tire mold

Details Tire mold Tire mold

1976-03-23

1977-12-20

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

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

425 35, 425 54, 425 56, 425 57, 425DIG44, 249183, 249184, 249186, B29F 100, B29H 502, B29H 1700, B29C 504

Patent

active

040638618

ABSTRACT:
A casting or injection mold for vehicle tires comprises two separable half-shells together defining an annular cavity into which a segmented core is introduced, radially inwardly converging core segments alternating with parallel-sided or radially inwardly diverging core segments to facilitate extraction of the core from the molded tire. In operation, one or more of the non-converging segments are immobilized within the mold, with the aid of mating formations on these segments and on the two half-shells, while the converging segments are urged radially inwardly by resilient or fluidic forces. In a specific embodiment these forces are supplied by a contractile annular spring with projections received in axially extending undercuts of all the segments.

REFERENCES:
patent: 1101732 (1914-06-01), Doughty
patent: 1160033 (1915-11-01), Ambrose
patent: 1370101 (1921-03-01), Dykes
patent: 2170188 (1939-08-01), Cobi
patent: 2405254 (1946-08-01), Hopkins
patent: 2763317 (1956-09-01), Ostling et al.
patent: 3248756 (1966-05-01), Mills et al.
patent: 3270999 (1966-09-01), Fowler et al.
patent: 3279739 (1966-10-01), Long
patent: 3358330 (1967-12-01), Pacciarini et al.
patent: 3474493 (1969-10-01), Staples
patent: 3645655 (1972-02-01), Benege
patent: 3784338 (1974-01-01), Previati
patent: 3813197 (1974-05-01), Ray et al.
patent: 3825392 (1974-07-01), Ligon et al.
patent: 3924982 (1975-12-01), Yang et al.

Affiliated with

Also associated with

Rating

Tire mold does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tire mold, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tire mold will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-596715