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, 1979
Filed:
Jan. 11, 1978
James F Gordon, Saratoga, CA (US);
Zeta Research, Inc., Lafayette, CA (US);
Abstract
A graphic recorder convertible for use with multiple width strip chart paper. A rotatable main drum carries sets of sprocket teeth for transporting strip charts along an information transfer head. At least one set of sprocket teeth is formed by separable sprocket sections which are detachably mounted about a recess in the drum for use with a strip chart of one width. Filler inserts are mounted in the recess in place of the separable sprockets for use with a chart of another width. Means is provided for positioning the separable sprocket teeth in precise angular agreement with the other sets of sprocket teeth. Compensator means is provided for ensuring angular agreement of the teeth on one sprocket section with the teeth on the other section.