Endless belt power transmission systems or components – Positive drive pulley or guide roll – Having belt-engaging surfaces on discrete circumferentially...
Reexamination Certificate
2006-05-30
2006-05-30
Hannon, Thomas R. (Department: 3682)
Endless belt power transmission systems or components
Positive drive pulley or guide roll
Having belt-engaging surfaces on discrete circumferentially...
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.
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patent: 4881930 (1989-11-01), Oertley
patent: 2003/0083166 (2003-05-01), Oertley
Kabrich Todd R.
Taft Morris E.
Todd Stephen C.
Burrows J. W.
Caterpillar Inc
Glastetter Calvin E.
Greene Jeff A.
Hannon Thomas R.
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