Power transmission system

Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Condition responsive

Reexamination Certificate

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Details

C464S032000, C474S902000

Reexamination Certificate

active

07922611

ABSTRACT:
A power transmission system including an integrally molded hub and elastic member, where stress is inhibited from concentrating at the gate marks remaining after integral molding. In a pulley driven by a belt, a plastic pulley side relief section1aprovided at a pocket section of the pulley and a plastic hub side relief section provided on an iron outer ring of the hub engaged at the pocket section whereby power is transmitted from the pulley to the shaft. The hub side relief section and outer ring forming parts of the hub, the iron inner hub to be fastened to the shaft, and the plastic cylindrical part are integrally molded so that the gate mark for plastic injection is formed near to or further to the outer circumference of the outer ring.

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German Office Action issued from the German Patent Office on Nov. 4, 2010 in the corresponding German patent application No. 10 2007 023 036.4 (a copy and English translation thereof).

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