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:
Jun. 09, 1998
Filed:
May. 06, 1997
Walter E Hinds, Beverly Hills, CA (US);
Other;
Abstract
A linear motor system for providing XY motion comprises a first linear motor directed for effecting movement of a first element in a first of two orthogonal directions. There is a second linear motor directed for effecting movement of a second element in a second of the orthogonal directions. The motors are mounted on a base such that the elements are located and movable in a single plane in the respective orthogonal directions relative to each other over the base. A shuttle is reactive with the two elements such that movement of the elements effects XY movement of the shuttle. The elements and the shuttle are connected through a bearing force. The bearing force is created selectively by a vacuum attracting force cooperating with an air bearing repelling force, a magnetic attracting force cooperating with an air bearing repelling force, an air bearing repelling force in a first direction and an air bearing repelling force in an opposite direction, or a mechanical linkage. There is very fine movement in an XY direction which can be precisely controlled while angular movement of the shuttle is prevented.