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:
Jul. 03, 1990
Filed:
May. 31, 1989
Phillip A Ragard, Binghamton, NY (US);
Universal Instruments Corporation, Binghamton, NY (US);
Abstract
A linear axis (cantilevered beam) is longitudinally displaceable relative to its support which, in turn, is displaceable laterally along an overhead frame so as to provide X-Y positioning for pick and place spindles and similar tools which are attached to the beam. A particular structural combination for accomplishing this involves a low inertia servomotor driving a speed reducer which, in turn, directly drives a short endless timing belt which, in turn, intermeshes with and drives a toothed rack in order to provide reliable, with zero backlash, high accuracy X-Y positioning of the tools. Features of the structural arrangement allow the use of component parts requiring much less precision, and thus much less cost, of manufacture than prior art, zero backlash, linear axis positioning systems.