Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1988-09-26
1989-08-15
Hoag, Willard
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156242, 156312, 264315, 26432813, 2643283, B29C 4500, B29C 3502
Patent
active
048571229
ABSTRACT:
A viscoelastic fluid molding material is injected into a tire tread cavity between the mold and an inflatable tread supporting body. The clearance distance between the mold and the inflatable tread supporting body is varied to increase the flow of the initial amount of fluid molding material into remote portions of the tire tread cavity and provide for the flow of the final amount of fluid molding material into gate portions while the tread supporting body is being deflected.
Circumferentially spaced gates may be spaced from the centerplane of the mold and have runners extending toward the shoulders of the tread supporting body for increased flow of the initial amount of fluid molding material into remote shoulder portions of the tread cavity. Sealing rings at the side edges of the tread cavity prevent flow of fluid molding material into sidewall areas of side members of the mold.
REFERENCES:
patent: 2724425 (1955-11-01), Ostling
patent: 2744290 (1956-05-01), Corson
patent: 4055619 (1977-10-01), Goodfellow
patent: 4059375 (1977-11-01), Koch et al.
patent: 4088523 (1978-05-01), Gallizia et al.
patent: 4166832 (1979-09-01), Gallizia
patent: 4176702 (1979-12-01), Seiberling
patent: 4604256 (1986-08-01), Greenwood et al.
patent: 4655699 (1987-04-01), Collier
Hoag Willard
Lacher Frederick K.
Lewandowski T. P.
The Goodyear Tire & Rubber Company
LandOfFree
Process for injection molding tire treads does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for injection molding tire treads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for injection molding tire treads will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-119146