Independent variable drive assemblies for wheels on a...

192 clutches and power-stop control – Clutch and brake – Vehicle type

Reexamination Certificate

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C037S257000, C192S014000, C192S01800B, C192S049000

Reexamination Certificate

active

07971695

ABSTRACT:
Drive assemblies and related methods are provided particularly suited for a snowblower. The drive assemblies include a transmission wheel disposed about a shaft and rotatably movable for rotating at least one wheel. The transmission wheel has a contact surface. The drive assemblies also include a drive pulley having a drive surface. The drive pulley is rotatable and configured for causing the transmission wheel to rotate when the drive surface and the contact surface of the transmission wheel are in contact. At least one brake clutch is disposed about an end of the shaft to provide independent control to the at least one wheel.

REFERENCES:
patent: 3680669 (1972-08-01), Hansen
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patent: 4920734 (1990-05-01), Wenzel
patent: 5012907 (1991-05-01), Fujioka et al.
patent: 5018592 (1991-05-01), Buchdrucker
patent: 5020308 (1991-06-01), Braun et al.
patent: 5617764 (1997-04-01), Komura et al.
patent: 6341479 (2002-01-01), Scag et al.
patent: 6464055 (2002-10-01), Wians
patent: 6968933 (2005-11-01), Buckhouse et al.
patent: 2003/0154632 (2003-08-01), Dowe et al.
patent: 2006/0150444 (2006-07-01), Friberg et al.

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