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. 09, 2002
Filed:
Jun. 07, 2000
Leo Muntnich, Aurachtal, DE;
Wolfgang Fugel, Nurmemberg, DE;
Ina Walzlager Schaeffler OHG, Herzogenaurach, DE;
Abstract
The invention relates to a window cage ( ) for a needle bearing. The pockets ( ) of said window cage are formed by punched out sections and by a stamping process with material displacement in a cage strip ( ) which is then bent round. According to the invention, the window cage ( ) is characterized in that before the cage strip ( ) is bent, the opposite surfaces of the web walls of a pocket ( ) are made up of three sub-surfaces ( ) in the area of the retaining projections ( ). The first two sub-surfaces ( ) follow a course which is parallel to a middle vertical ( ) and each extend into a second sub-surface ( ) at their upper end, said second sub-surface running diagonally in the direction of the central point of the pocket. Each of the second sub-surfaces then ends in a third sub-surface ( ) which also runs parallel to the middle vertical ( ).