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:
Jan. 29, 1991
Filed:
Jun. 29, 1989
Shinji Nagatsuna, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A driving device drives an elongate second rotary body which is movable toward and away from an elongate first rotary body that is mounted on a machine body, while maintaining the former in contact with the latter in a uniform pressure distribution. Both of the first and second rotary bodies have a cylindrical or columnar configuration, for example. The device transmits a rotating force from a drive source to the second rotary body at one end of the second rotary body. The second rotary body is unmovably mounted on a carrier or base integrally with the drive source and is movable toward and away from the first rotary body. Biasing means constantly urges the second rotary body against the first rotary body.