Cantilever tooth sprocket

Endless belt power transmission systems or components – Positive drive pulley or guide roll – Having belt-engaging surfaces on discrete circumferentially...

Reexamination Certificate

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Details

C474S161000, C305S195000, C305S199000, C301S030000, C301S031000

Reexamination Certificate

active

07052424

ABSTRACT:
A drive sprocket assembly for driving an endless chain assembly for propelling a machine has a hub portion and flexible cantilever teeth in which each tooth is separately deflectable upon impact by a bushing of the endless chain assembly. The flexibility of each tooth will absorb a portion of the kinetic energy of the impact to reduce noise in the structure. The drive sprocket assembly includes a plurality of segments each having the cantilever teeth. Each segment has a first end portion and a second end portion having an end relief which prevents wear between the segment and the hub as the end portion is deflected by the impact.

REFERENCES:
patent: 1114234 (1914-10-01), Curtis
patent: 3173301 (1965-03-01), Miller
patent: 3899219 (1975-08-01), Boggs
patent: 4111064 (1978-09-01), Purcell
patent: 4332573 (1982-06-01), Uchida et al.
patent: 4881930 (1989-11-01), Oertley
patent: 2003/0083166 (2003-05-01), Oertley

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