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:
Oct. 23, 1984
Filed:
Sep. 14, 1982
Applicant:
Inventors:
Akira Mizusawa, Fujisawa, JP;
Yoshiaki Notoya, Zushi, JP;
Assignee:
Nifco Inc., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411 57 ; 411 60 ; 411182 ; 411437 ; 411908 ;
Abstract
A fastening device of synthetic resin comprises a male member provided on its shaft portion with screw threads and a female member having at least one pitch of spiral thread on the inside surface of the bore thereof. A plurality of apertured panels are positively fastened face to face by inserting the leg of the female member into apertures of the panels and subsequently, forcing the shaft portion of the male member into the bore of the female member. The panels thus fastened can be separated by rotating the male member so as to threadably extract the male member from the female member.