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:
Aug. 29, 2000
Filed:
May. 20, 1997
William Pflager, Waynesboro, PA (US);
Joel Metzler, Greencastle, PA (US);
UNOVA IP Corp., Woodland Hills, CA (US);
Abstract
An improved drive and support for a machine tool by which a part thereof can be supported and driven along a linear path for machining. The drive and support includes a linear slideway having a magnetic track along which a housing will move when a moving magnetic field is generated in an electromagnetic assembly mounted in the housing. The direction the housing moves depends upon the direction of movement of the generated magnetic field, and first hydrostatic bearing pads acting between the housing and the slideway, or between the electromagnetic assembly and the track or any combination thereof, to counteract the attractive force between the electromagnet and the track.