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.:

US 8167284 B1

PDF
Full Text
Expired
Date of Patent:
May. 01, 2012

Filed:

Oct. 20, 2009
Applicant:

Masato Kuroda, Nisshinn, JP;

Inventor:

Masato Kuroda, Nisshinn, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A second spiral spring is smaller than a first spiral spring and is housed in an open space in the center of the first spiral spring. A folded portion that is formed in an inner end of the first spiral spring and a folded portion that is formed in an outer end of the second spiral spring are hooked in a latch plate, under tension, that is cut and raised from a side. A receiving space is formed between the latch plate and an initial winding portion that starts winding in a curved shape from the inner end of the first spiral spring so as to house a tip of the folded portion of the outer end of the second spiral spring that is hooked in the latch plate.


Find Patent Forward Citations

Kuroda, Masato. (2012). Hook structure for spiral spring (U.S. Patent No. 8167284). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8167284

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…