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. 15, 1989
Filed:
Oct. 26, 1988
Nagle V Gusching, Sidney, OH (US);
The Monarch Machine Tool Company, Sidney, OH (US);
Abstract
A spindle mechanism is capable of rotating for a rotative tool and is capable of being locked for mounting a nonrotative tool. First and second curvic couplings may be forced into engagement by a large hydraulic force which concurrently unloads a combined thrust and radial bearing at the outboard end of the support. This permits the spindle, when mounting a nonrotative tool, to be rigidly supported in a nonrotative condition. A smaller hydraulic force may be utilized to move the spindle axially inwardly which disengages the first and second curvic couplings and preloads the combined thrust and radial bearing providing a properly preloaded rotational mode of support when the spindle is mounting a rotative tool. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.