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. 22, 1995
Filed:
Jul. 30, 1993
Applicant:
Inventors:
William W Pflager, Waynesboro, PA (US);
Timothy W Hykes, Greencastle, PA (US);
Assignee:
Western Atlas Inc., Paramus, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
451 11 ; 451-7 ; 451294 ; 310 / ; 310 90 ;
Abstract
A grinding machine provided with a spindle rotating under the influence of a cantilever mounted rare earth permanent magnet motor. Hydrostatic fluid film bearings are provided between the ends of the spindle and a bronze bearing to support the spindle in such a manner so as to eliminate wear. A single oil reservoir is used to supply oil to the hydrostatic bearings, as well as to the cooling jacket of the motor.