Heat pad

Details Heat pad Heat pad

1986-06-17

1987-11-24

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Product or preform repair or restoring means

Shape conforming sleeve or deformable pressure wrap means

156 97, 156381, 1565833, 219243, 219535, 425 15, 425 41, B29C 3502

Patent

active

047086084

ABSTRACT:
A heat pad for pressing against a curved surface of an annular tire to vulcanize a tire patch having a channel-shaped sheet member of resilient conductive rubber material with reinforcing electrodes adhered to the sheet member at the elongated side edges, a cover of insulating rubber material encasing the sheet member and an intermediate portion between the electrodes stretchable to conform to the curved surface of the tire under pressure from a pressing member urging the pad against the tire.

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patent: 2617916 (1952-11-01), Neidnig
patent: 3178560 (1965-04-01), Mapp et al.
patent: 3359524 (1967-12-01), Gallacher et al.
patent: 3922415 (1975-11-01), Dexter
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patent: 4055526 (1977-10-01), Kryokawa et al.
patent: 4284451 (1981-08-01), Conley
patent: 4334148 (1982-06-01), Kampe
patent: 4444708 (1984-04-01), Gale et al.
patent: 4505848 (1985-03-01), Kobayashi
patent: 4548740 (1985-10-01), von Tomkewitsch et al.
patent: 4560524 (1985-12-01), Smuckler

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