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:
Jul. 30, 1991
Filed:
Jun. 13, 1990
Kanji Kitamura, Osaka, JP;
Shuichi Kawamoto, Osaka, JP;
Hokushin Corporation, Yao, JP;
Kawamoto Optical Industrial Company Limited, Osaka, JP;
Abstract
Spectacles having a lens frame corner and an engaging arm end. The lens frame corner includes a parallelepiped block extending from the lens frame and having a top and a bottom surfaces. Each of the top and bottom surfaces of the block has a recess or a hole, a first groove having a semicircular section, and a second groove having a semicircular section at right angle with the first grooves. The arm end include a pair of parallel planar strips. The distance between the upper strip and the lower strip is such that it allows forcible insertion of the block of the frame corner. Each of the strip has a cylindrical projection facing each other which, in use, is inserted into the recess or the hole of the block and a linear projection having a semicircular section, which, in use, is inserted into one of the grooves of the block.