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:
Apr. 18, 1989
Filed:
Feb. 11, 1988
Applicant:
Inventor:
Pascal Charroppin, Le Vesinet, FR;
Assignee:
Schlumberger Industries, Montrouge Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ; B65H / ; B65H / ; B65H / ;
U.S. Cl.
CPC ...
346136 ; 346-11 ; 242 / ;
Abstract
A graphic machine or plotter comprising a feed roll (30) for continuously supplying a print medium such as paper (20), driving means (24) for driving the paper supplied by the feed roll to produce a drawing on the paper, and a take-up roll (40) for receiving the paper after the drawing is produced. The feed roll (30) and the take-up roll (40) are linked together in such a way that the rotation of the feed roll (30) in a forward direction for which the paper is payed out from the feed roll drives the take-up roll (40) to wind up the paper but the rotation of the take-up roll (40) in the reverse direction does not drive the feed roll (30).