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:
Sep. 03, 1991
Filed:
Feb. 25, 1988
Jung Ho Oh, Seoul, KR;
Other;
Abstract
A special kind of fastening device is disclosed. The fastening device of the present invention comprises several divided washer sections and a guide wire which are to be used in conjuction with a blind rivet or a bolt. This fastening device is used in order to place the washer on the back of a wall for fastening a bolt, etc., in the case where the said back of the wall is inaccessible in usual manner. Generally the divided washer sections are of the shape of a parallel-elliptical form or a parallelogram, and therefore, they can be passed easily through a small hole. After passing through the small hole, they can be assembled into a form of a nut, if the guide wire is pulled forward which is connecting through all the divided washer sections.