Process for creating expandable tire chamber

Details Process for creating expandable tire chamber Process for creating expandable tire chamber

2005-06-14

2005-06-14

Knable, Geoffrey L (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C152S210000, C156S123000, C156S130000

Reexamination Certificate

active

06905564

ABSTRACT:
A process for producing a tire having an expandable chamber utilized for extending and retracting studs provided in the periphery of the tire. In one embodiment, a non-stick film is strategically positioned between the casing and the tread prior to curing the tread onto the casing. The interface at either side of the film forms the sides of an expandable chamber. The tread side of the chamber is inset and studs are affixed thereto. Expansion of the chamber extends the studs out of the inset and into engagement with a road surface. Alternative processes provide a channel in the tread and the expansion chamber formed in the channel.

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patent: 11-216781 (1999-08-01), None

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