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:
Jun. 28, 1988
Filed:
Dec. 13, 1985
Applicant:
Inventors:
Atsushi Misumi, Yokohama, JP;
Toshihiro Takehana, Yokohama, JP;
Assignee:
NHK Spring Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
428 74 ; 428 76 ; 428114 ; 428288 ; 267 52 ;
Abstract
An FRP plate spring member having spring characteristics of the invention has a protective layer of a resin formed on the entirety or part of the outer surface of an FRP base comprising a number of reinforcing fibers which are impregnated with and held in a cured matrix resin. A process for manufacturing such an FRP plate includes a step of applying a resin for forming the protective layer on the entirety or part of the inner surface of a mold for molding the FRP plate.