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:
Apr. 04, 2006
Filed:
Nov. 11, 2002
Shunji Ohno, Tokyo, JP;
Kazumichi Iwasa, Tokyo, JP;
Norio Nakajima, Tokyo, JP;
Masanori Tsuji, Tokyo, JP;
Tsuyoshi Doi, Tokyo, JP;
Yoshihisa Kouzu, Tokyo, JP;
Hideyuki Miyake, Odawara, JP;
Mamoru Sugimoto, Odawara, JP;
Shunji Ohno, Tokyo, JP;
Kazumichi Iwasa, Tokyo, JP;
Norio Nakajima, Tokyo, JP;
Masanori Tsuji, Tokyo, JP;
Tsuyoshi Doi, Tokyo, JP;
Yoshihisa Kouzu, Tokyo, JP;
Hideyuki Miyake, Odawara, JP;
Mamoru Sugimoto, Odawara, JP;
Shin Caterpillar Mitsubishi Ltd., Tokyo, JP;
Abstract
An easy manufacturing method of a slip stopper, and apparatus therefor, that has a great slip stopping effect and can be used for a location where a problem occurs if a though hole is opened therein. After a protruding portion is formed on a steel plate, by using a first punching die unit, so as to protrude from the upper surface in a plate thickness direction, a concave portion and drain channels are formed in the protruding portion by shear planes that extend substantially perpendicular to the steel plate upper surface and have been half-blanked so as not to open a through hole in the steel plate by using a second punching die unit.