Oil-free chain

Details Oil-free chain Oil-free chain

2011-03-29

2011-03-29

Marcelo, Emmanuel M (Department: 3654)

Endless belt power transmission systems or components

Positive drive belt

Belt formed of rigid links

C474S215000

Reexamination Certificate

active

07914409

ABSTRACT:
In an oil-free roller chain, the inner faces of the outer link plates have recesses that receive the ends of bushings, and the inner faces of the inner link plates have recesses that receive the ends of rollers surrounding the bushings. Each such recess is formed by punching, so that the outer surface of each plate has a bulged portion opposite each recess. The diameters of the bulged portions are greater than the diameters of the corresponding recesses. The bushing can have an oil passage located midway between its ends and serving as an oil reservoir supplying oil to the gap between the bushing and the roller and between the bushing and a connecting pin.

REFERENCES:
patent: 2906562 (1959-09-01), Burgman
patent: 3336089 (1967-08-01), Krickler
patent: 4729756 (1988-03-01), Zimmer
patent: 7775925 (2010-08-01), Nakagawa et al.
patent: 2007/0129194 (2007-06-01), Wu
patent: 2008/0076613 (2008-03-01), Nakagawa et al.
patent: 0 601 469 (1994-06-01), None
patent: 51-162486 (1976-12-01), None
patent: 55-82210 (1980-06-01), None
patent: 57-181952 (1982-11-01), None
patent: 63-125842 (1988-05-01), None
patent: 64-030946 (1989-02-01), None
patent: 2001-071044 (2001-03-01), None
patent: 2001-137961 (2001-05-01), None
patent: 2001-304345 (2001-10-01), None
patent: 2003-194227 (2003-07-01), None
patent: 2004-256262 (2004-09-01), None
patent: 2005-282813 (2005-10-01), None
patent: 2005-282813 (2005-10-01), None
patent: M290538 (2006-05-01), None
U.S. Appl. No. 11/978,404 by inventors Takashi Nakagawa et al., filed Oct. 29, 2007.

Affiliated with

Also associated with

Rating

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

If you have personal experience with Oil-free chain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil-free chain will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2645340