Sheet feeding or delivering – Feeding – Separators
Reexamination Certificate
2003-07-03
2008-12-30
Mackey, Patrick H (Department: 3653)
Sheet feeding or delivering
Feeding
Separators
Reexamination Certificate
active
07469889
ABSTRACT:
An image forming apparatus including a sheet feed apparatus configured to sequentially separate sheets stacked on a sheet stacking member. The sheet feed apparatus includes a sheet feed roller configured to come in pressing contact with the uppermost sheet in order to feed the sheet. The sheet feed apparatus also includes a tilt member arranged to oppose the sheet feed roller. The sheet feed apparatus includes a contact face arranged to press against the sheet feed roller. The sheet feed apparatus also includes a tilt face arranged to contact an edge of the uppermost sheet. The tilt face and the contact face are formed from one of polybutylene terephthalate (PBT), polyethylene (PE), metal, poly-ether-ether-ketone (PEEK), and polyimide (PI) to provide superior wear resistance.
REFERENCES:
patent: 4150181 (1979-04-01), Smith
patent: 5802434 (1998-09-01), Takehara et al.
patent: 5997965 (1999-12-01), Shimazu et al.
patent: 6059483 (2000-05-01), Owens et al.
patent: 6280055 (2001-08-01), Merko
patent: 6339484 (2002-01-01), Arai
patent: 6688590 (2004-02-01), Billings et al.
patent: 6824131 (2004-11-01), Togashi
patent: 2002/0036377 (2002-03-01), Togashi
patent: 1 179 498 (2006-10-01), None
patent: 2-55634 (1990-04-01), None
patent: 6-67480 (1994-03-01), None
patent: 8-234531 (1996-09-01), None
patent: 10-139197 (1998-05-01), None
patent: 11-24507 (1999-01-01), None
patent: 2002-68511 (2002-03-01), None
patent: 2002-131091 (2002-05-01), None
Sachio Yasufuku, Application of Engineering Plastic Materials to Office Automation and Audio-Visual Appliances in Japan, Nov./Dec. 1992, IEEE Electrical Insulation Magazine, vol. 8, No. 6, pp. 5-12.
Printout of website http://www.polymerplastics.com/performance—vespel.shtml, Aug. 16, 2000.
Printout of website http://www.craftechind.com/material.htm, Jan. 20, 1998.
Printout of website http://www.tplast.ee/plast10en.php, Aug. 27, 2002.
Sangeeta Hambir et al., Sintering of ultra high molecular weight polyethylene, Jun. 2000, Bull. Mater. Sci., vol. 23, No. 3, pp. 221-226, © Indian Academy of Sciences.
Printout of website http://www.sdplastics.com/polyeth.html, Jan. 21, 1997.
Mackey Patrick H
Morrison Thomas A
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
LandOfFree
Sheet feeding apparatus and image forming apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sheet feeding apparatus and image forming apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet feeding apparatus and image forming apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4029783