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:
May. 27, 1986
Filed:
Jul. 27, 1984
Applicant:
Inventor:
Yoshiyuki Iwaki, Himeji, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C / ; F16J / ;
U.S. Cl.
CPC ...
384480 ; 277 56 ;
Abstract
A waterproof ball bearing device comprises an inner ring, an outer ring arranged coaxially with the inner ring, a plurality of balls held between the inner and outer rings, rubber-sealing plates placed at both sides of the balls to cover openings formed between the inner and outer rings, wherein at least one of the rubber-sealing plates is provided with an annular projection in a cylindrical form extending from the outer surface along the center axis of the inner and outer rings.