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:
Aug. 16, 1988
Filed:
Nov. 20, 1986
Applicant:
Inventors:
Masakazu Nishiyama, Yokohama, JP;
Chiharu Umetsu, Yokohama, JP;
Akira Kebukawa, Kawasaki, JP;
Mituru Andoh, Yokohama, JP;
Assignee:
NHK Spring Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F / ; B60G / ;
U.S. Cl.
CPC ...
267 33 ; 267152 ; 267166 ; 267195 ; 267214 ; 280701 ;
Abstract
A coated coil spring wrapped in a coating member prepared from a soft synthetic resin foam, wherein the coating members of the respective coil spring turns constituting at least the effective region of the coil spring are provided with a helical clearance; and the width of said clearance accounts for 0.15 to 0.50 times the width of the adjacent coil spring turns.