Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Reexamination Certificate
2006-07-11
2006-07-11
Mitchell, Katherine (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
C074S594100, C074S594200
Reexamination Certificate
active
07073996
ABSTRACT:
A two-piece crank hanger set including a left crank arm having a tubular crank spindle attached thereto and a right crank arm having at least one chain sprocket wheel attached thereto. The crank spindle extends through a bicycle crank tube. Bearing cups are removably attached to both ends of the crank tube. Bearing retainers having tapered roller bearings engage the bearing cups. A tubular stop member is held in place on the outer end of the crank spindle by a spline mechanism. A preload and attachment bolt passes through the right crank arm and chain sprocket wheel and into threadable engagement with a threaded inner surface of the outer end of the tubular crank spindle. The preload and attachment bolt is tightened to preload the bearings.
REFERENCES:
patent: 626227 (1899-06-01), Gagler
patent: 2277748 (1942-03-01), Duffy
patent: 3906811 (1975-09-01), Thun
patent: 4201120 (1980-05-01), Segawa
patent: 4439078 (1984-03-01), Dessouroux
patent: 4704919 (1987-11-01), Durham
patent: 4936597 (1990-06-01), Hartmann
patent: 6244750 (2001-06-01), Chiang
patent: 6276885 (2001-08-01), Yamanaka
patent: 6439817 (2002-08-01), Reed
patent: 6829965 (2004-12-01), Mombrinie
Clarence W. Coles, et al., “Glenn's Complete Bicycle Manual”, 1973, pp. 285 & 296.
Howard Robert E.
Mitchell Katherine
LandOfFree
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