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
2011-04-05
2011-04-05
Kim, Sang (Department: 3654)
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
C474S111000
Reexamination Certificate
active
07918754
ABSTRACT:
A hydraulic tensioner comprises a plunger, and a plunger-accommodating hole in a tensioner housing, together forming a high pressure oil chamber. A plunger-biasing spring is provided in the high pressure oil chamber between the plunger and the bottom of the plunger-accommodating hole. An oil storage chamber is formed inside the plunger, and a check valve unit is press-fit in the rear end of the plunger to allow flow from the oil storage chamber to the high pressure oil chamber while blocking reverse flow of oil.
REFERENCES:
patent: 4792322 (1988-12-01), Goppelt et al.
patent: 4963121 (1990-10-01), Himura et al.
patent: 5352159 (1994-10-01), Suzuki et al.
patent: 5908363 (1999-06-01), Suzuki
patent: 6045471 (2000-04-01), Suzuki
patent: 6086497 (2000-07-01), Fukuda et al.
patent: 6602154 (2003-08-01), Guichard et al.
patent: 2308420 (1997-06-01), None
patent: 10-159921 (1998-06-01), None
patent: 3897317 (2007-01-01), None
patent: 2007-071310 (2007-03-01), None
Howson & Howson LLP
Kim Sang
Tsubakimoto Chain Co.
LandOfFree
Hydraulic tensioner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic tensioner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic tensioner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2705836