Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Tension adjuster or shifter driven by electrical or fluid motor
Reexamination Certificate
2007-05-15
2007-05-15
Johnson, Vicky A. (Department: 3682)
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Tension adjuster or shifter driven by electrical or fluid motor
Reexamination Certificate
active
10736121
ABSTRACT:
An automatic tensioner having a load cell for detecting and controlling a power transmission belt tension. The tensioner comprises a lead screw driven by an electric motor for setting a lever arm/pulley position and thereby a belt load. The tensioner also comprises a load cell engaged with a tensioner lead screw for detecting a belt load. The tensioner motor is controlled loop using a load cell signal. The controller compares a detected belt load from the load cell with a predetermined belt load value to identify a desired belt load and thereby set a tensioner lever arm position corresponding to said desired belt load. The tensioner may also be controlled by an engine operating condition.
REFERENCES:
patent: 4298342 (1981-11-01), Clayton et al.
patent: RE31698 (1984-10-01), Sansome et al.
patent: 4478595 (1984-10-01), Hayakawa et al.
patent: 4573952 (1986-03-01), Schulze
patent: 4770049 (1988-09-01), Jones et al.
patent: 4854798 (1989-08-01), Snyder et al.
patent: 5439420 (1995-08-01), Meckstroth et al.
patent: 5531648 (1996-07-01), Meckstroth et al.
patent: 5632698 (1997-05-01), Suzuki
patent: 5733214 (1998-03-01), Shiki et al.
patent: 5752891 (1998-05-01), Meckstroth et al.
patent: 6572501 (2003-06-01), Winklhofer
patent: 6849011 (2005-02-01), Calfa et al.
patent: 2005/0209034 (2005-09-01), Ellsworth et al.
patent: 2188440 (1987-09-01), None
patent: 02118252 (1990-05-01), None
Knight Brian
Stone Roger
Zecchetti Daniele
Castleman, Esq. C. H.
Johnson Vicky A.
Mahurin, Esq. J. I.
The Gates Corporation
Thurnau, Esq. J. A.
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