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. 22, 1986
Filed:
Aug. 10, 1984
Applicant:
Inventor:
Edwin Langberg, Marlton, NJ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
33 / ; 33138 ;
Abstract
The invention provides for an inexpensive plotter/digitizer which can be attached to existing drafting boards of varying sizes. The device uses flexible links, such as cables. Length, speed, and tension of the links is monitored by sensors. The speed, accuracy, and line quality of plotting are improved by reduction of the weight of moving components and mechanical simplification of the drive mechanism. Trajectory Control for more than two link drives for prescribed two-dimensional motion is described together with Stationary Control which maintains required tension on cables. Microprocessor controlled, multimode operation of individual drives is indicated.