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. 09, 1996
Filed:
Nov. 21, 1994
Tsuyoshi Ishihara, Yashio, JP;
Hideyori Sakuragi, Atsugi, JP;
Kazuo Imanishi, Atsugi, JP;
Haruhiko Ishikawa, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Sannohashi Corporation, Tokyo, JP;
Yorozu Corporation, Yokohama, JP;
Abstract
A welding nut comprising a main cylindrical body having a bearing surface end and an axial screw hole, a flange set around an outer perimeter of the body at the bearing surface end, and axially extending protrusions formed by partially pressed the flange in a direction towards the bearing surface. The protrusions extend axially beyond the bearing surface for resistance welding. At least one groove can be formed in the bearing surface between the screw hole and the protrusions. A guide tube having an external diameter smaller than an external diameter of the body can extend axially from the bearing surface. Screw threads can be bored continuously through the screw hole of the cylindrical body and an inner perimeter of the guide tube. A large number of serrated protrusions can be formed on an outer perimeter of the cylindrical body. Each of the protrusions can have an inner surface slanting radially outwardly and axially away from the bearing surface towards an outer edge of the flange. The protrusions can have equal width and can be formed along an outer edge of the flange on a side thereof adjacent the bearing surface. At least one groove can be formed on a lower end of each of the protrusions.