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:
Nov. 26, 1991
Filed:
Sep. 26, 1990
Hiromitsu Nagamatsu, Kumagaya, JP;
Seitaro Ueda, Kumagaya, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A sprocket wheel having replaceable teeth includes a wheel body, a plurality of replaceable teeth, and fixing members to fix each tooth to the wheel body. In the outer periphery of the wheel body are formed a plurality of notches regularly spaced from each other. Each replaceable tooth consists of a central portion which forms a tooth groove on the upper surface and which fits into the notch of the wheel body, and two flanges formed in right and left sides of the central portion. The right and the left flanges can be formed ahead of and behind the central portion of the tooth respectively. Each fixing member can consist of an internal thread formed in each flange of the tooth, a bolt hole formed in each side of the notch, and a bolt having a head thinner than the flange.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile