The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 1990
Filed:
Mar. 02, 1988
Tadashi Yasuoka, Tokyo, JP;
Seikosha Co., Ltd., , JP;
Abstract
An apparatus for feeding recording paper forwardly and backwardly in a printing apparatus comprising a pair of paper feed devices, one on each side of a printing unit. The upstream paper feed device is lower in forward feed speed than the downstream paper feed device. The apparatus includes a larger- and a smaller-diameter gear portions provided integrally on a drive gear wheel which transmits a drive force to the upstream paper feed device. A reverse-feed gear wheel, mounted on the drive shaft, meshes with the larger-diameter gear portion via a one-way clutch. A forward-feed gear wheel, loosely fitted over the drive shaft, meshes with the smaller-diameter gear portion. A clutch spring, wound around the outer periphery of the shaft of the forward feed gear wheel and a seat coupled to the drive shaft, is engaged with a rotary body with a one-way clutch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile