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:
Feb. 21, 1989
Filed:
Jul. 20, 1987
Robert H Niemeyer, III, Martinez, CA (US);
AM International Corporation, Chicago, IL (US);
Abstract
A moveable pen carriage for use in a graphic recording system supports a plurality of recording pens in a linear array together with means for selectively engaging any one of the plurality of pens. Means are provided for imparting the desired motion to the pen carriage as well as the media upon which the recording is made. A pen carriage suspension system comprises a pair of wheel supports, each supporting a pair of grooved wheels which engage the upper and lower tracks within the pen carriage track system. Flexible members within the wheel supports provide resilient compensation for variations in track spacing while maintaining the correct angular position of the pen carriage.