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:
Jan. 20, 1987
Filed:
Dec. 28, 1984
Applicant:
Inventors:
Kouichi Yaotani, Akikawa, JP;
Fumio Nakada, Hatano, JP;
Takao Tanaka, Hino, JP;
Minoru Yoshida, Hachiouji, JP;
Assignee:
Topura Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411411 ;
Abstract
A thread fastener for fastening resilient material workpieces with small torque to obtain a strong fastening force, wherein the fastener is provided with equivalent height continuous thread convolutions on a shank and a plurality of spaced thread-type projections are petaliferously formed and on the equivalent height thread convolutions which are arranged at an appropriate lead angle.