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. 21, 1992
Filed:
Nov. 21, 1990
Robert M Lawson, Santa Clara, CA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A linear tweezers for automatically placing a component on a printed circuit board. Two pairs of mutually orthogonal, oppositely-directed, linearly-actuated tweezer legs center a component along perpendicular transverse axes with respect to a projecting axis. Each opposing pair of legs is connected by a flexible inelastic drive belt, assuring that the legs approach the projecting axis at the same rate. The component is located between the legs and is precisely centered by the legs as they approach the projecting axis. The component is then gripped by both pairs of legs and transported to a desired location. A vacuum gripping chuck grasps the component and moves along the projecting axis away from the tweezer legs to place the component without disturbing any nearby unsecured parts.