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:
Aug. 29, 2000
Filed:
Apr. 30, 1996
Applicant:
Inventors:
Assignee:
Mitsui Kinzoku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; E05B / ;
U.S. Cl.
CPC ...
29509 ; 295221 ; 295241 ; 292340 ; 148653 ;
Abstract
A striker for use in a door latch apparatus comprises a base made of a normal-strength steel plate having a strength of 30 to 40 kg/mm.sup.2 and a U-shaped member made of a high-strength steel rod having a strength equal to or higher than 70 kg/mm.sup.2. The U-shaped member has inner and outer flanges, between which the base is firmly sandwiched. The inner flanges are formed without being heated. The U-shaped member is fixed to the base after hardened and tempered. After the U-shaped member is connected with the base, the base is not hardened or is not tempered.