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:
Nov. 18, 1986
Filed:
Aug. 19, 1985
Tatsuo Nakamura, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A releasable fastening construction for detachably fastening together both ends of an article such as personal ornaments which is capable of not only readily accomplishing the fastening and releasing operation but ensuring the positive and reliable fastening. The releasable fastening construction comprises a first connector having a blind hole defined therein and adapted to be connected to one end of an article, a second connector fitted in the blind hole of the first connector and adapted to be connected to the other end of the article, a projection provided on one of the connectors, a cutout or groove of a substantially L-shape provided at the other of the connectors to permit the projection to be fitted therein when the second connector is fitted in the blind hole of the first connector and having a semi-circular recess provided at the terminal end thereof to hold the projection therein, and magnets respectively arranged at the closed end of the blind hole and at the inner end of the second connector in a manner to be opposite to each other when the second connector is fitted in the blind hole and so as to repel each other.