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:
Feb. 02, 1988
Filed:
Apr. 21, 1986
Applicant:
Inventors:
Juji Ojima, Ebina, JP;
Isao Hino, Miyata, JP;
Assignee:
NHK Spring Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474101 ; 474138 ; 74 182 ;
Abstract
In a tension providing device having a rotary shaft which rotates the spring force in an inserted casing, a pushing body which slide in an axial direction by the aid of the rotation of the rotary shaft, a seal bolt screwed with the base end portion of the casing, and a boot which covers between casing and pushing body, the mixing of dust and foreign matters from outside and the leakage of the lubricant coated or filled in the inner portion are prevented due to the covering of the boot and seal with bolt.