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:
Nov. 07, 1978
Filed:
Jul. 25, 1977
Applicant:
Inventors:
Raymond A Daniels, Boulder, CO (US);
Paul Kummli, Boulder, CO (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
355 58 ;
Abstract
A continuously variable magnification optical system for use in document copier machines wherein multiple cams are used to provide motion input to the continuously variable drive system. Multiple cams are used in order to provide capability to the machine of copying at 1:1 reduction on various size copy papers without causing the scanning mechanism to scan beyond the usable length of the document glass. A cam-select mechanism is disclosed.