Automatic mechanically controlled...

Details Automatic mechanically controlled... Automatic mechanically controlled...

2007-02-06

2007-02-06

Charles, Marcus (Department: 3682)

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Speed responsive

C474S014000, C474S012000, C192S003540

Reexamination Certificate

active

10691160

ABSTRACT:
A continuously-variable-ratio drive, having an input shaft; a flywheel integral with the input shaft; a drive pulley idle with respect to the input shaft and defined by two half-pulleys defining a groove of variable size for a V belt; and a centrifugal control assembly. The control assembly has a centrifugal actuating device which intervenes above a first threshold value of the angular speed of the input shaft to connect the drive pulley angularly to the flywheel by means of a friction clutch; and a speed adjusting device which is active over a second threshold value of the angular speed of the input shaft to adjust the size of the groove of the drive pulley and therefore the work diameter of the belt.

REFERENCES:
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patent: 2556512 (1951-06-01), Ammon
patent: 3830112 (1974-08-01), Ward
patent: 4608885 (1986-09-01), Koivunen
patent: 6520878 (2003-02-01), Leclair et al.
patent: 2002/0017440 (2002-02-01), Borghi et al.
patent: 2002/0034995 (2002-03-01), Borghi
patent: 0898096 (1999-02-01), None
patent: 1132656 (2001-09-01), None
patent: 1160490 (2001-12-01), None
patent: 2129072 (1984-05-01), None
patent: 2165599 (1986-04-01), None
patent: WO 98/48198 (1998-01-01), None

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