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. 26, 2011
Filed:
Dec. 14, 2005
Sandro G. Belpanno, Rochester, NY (US);
Robert C. Kruse, Churchville, NY (US);
Sandro G. Belpanno, Rochester, NY (US);
Robert C. Kruse, Churchville, NY (US);
Brinkman Products, Inc., Rochester, NY (US);
Abstract
An improved Davenport® multi-spindle automatic screw machine has a tool arm () mounted on a shaft () for rotational movement relative to a revolving head cap (). A needle bearing () is operatively arranged between the shaft and the revolving head cap. The bearing is radially loaded as said bearing is installed and that the individual needles of same remain elastically deformed by the radial load immediately after said bearing has been installed. The shaft has a hardened surface () that is engaged by the needles. The diameter of the shaft hardened surface portion is greater than the diameters of the adjacent shaft portions. Annular recesses () extend into the shaft at either end of the hardened portion. These recesses have frusto-conical surfaces () that act as ramps to guide insertion of the press-fittable needle bearing into the space between the shaft and the head cap.