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:
Oct. 27, 1987
Filed:
Apr. 21, 1986
Applicant:
Inventors:
Juji Ojima, Ebina, JP;
Isao Hino, Nagano, JP;
Assignee:
NHK Spring Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474101 ; 474138 ;
Abstract
A tension providing device which enables to prevent the invasion of dust and water into a casing together with enabling the locking and the winding off of the torsion spring from the base side of the casing. This device is characterized by being provided with a rotatable shaft in the casing which only rotates by restraining the sliding in the axial direction of the casing, screwing the pushing body which slides by the rotation of the shaft with the shaft, supporting this screwed portion with bearing, and further screwing a seal bolt at the base portion of the casing.