Tensioner for a chain or belt

Details Tensioner for a chain or belt Tensioner for a chain or belt

2005-02-01

2005-02-01

Fenstermacher, David (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

C474S137000

Reexamination Certificate

active

06849012

ABSTRACT:
A chain or belt tensioner comprises a plunger displaceable in a housing between retracted and extended positions. A stop ring between the plunger and housing frictionally contacts a smooth surface of the housing. A recess in the plunger has a tapered face for engagement with a bevelled surface of the stop ring. Inward movement of the plunger causes the tapered face to engage the stop ring and to force it to deform outwardly to a wedging position in which the stop ring is wedged between the tapered face and the surface thus preventing further inward movement of the plunger. The recess has a second face that engages the stop ring when the plunger moves out of the housing so as to slide it over the surface. The invention provides for a stop mechanism that enables retraction of the plunger to be prevented at an infinite number of positions.

REFERENCES:
patent: 4229950 (1980-10-01), Fessenden
patent: 4792322 (1988-12-01), Goppelt et al.
patent: 4822320 (1989-04-01), Suzuki
patent: 4985009 (1991-01-01), Schmidt et al.
patent: 5073150 (1991-12-01), Shimaya
patent: 5704860 (1998-01-01), Stief
patent: 1650620 (1970-01-01), None
patent: 19580456 (1999-05-01), None
patent: 0266565 (1987-10-01), None
patent: 1018211 (1963-06-01), None
patent: 2000337461 (2000-12-01), None

Affiliated with

Also associated with

Rating

Tensioner for a chain or belt does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tensioner for a chain or belt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tensioner for a chain or belt will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3479027