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:
May. 29, 2001
Filed:
Apr. 28, 2000
Satoru Watada, Hiroshima, JP;
Katuyuki Naitou, Hiroshima, JP;
The Japan Steel Works, Ltd., Tokyo, JP;
Abstract
A cylinder,is formed with an upper guide bore,and a lower guide bore,at a position corresponding to a gate part B. Gate rods,are rotatably inserted through the guide bores,, respectively. Each of the gate rods,is formed with opening degree changing recesses in a form of an opencut adjacent to each other in an axial direction in order to constitute opening degree variable channels S in combination with opening degree variable channel forming parts,of two screws,. Each of the recesses,consists of a first semicircular face,and a second semicircular face,in such a shape that an upstream side end of the first semicircular face,is diagonally cut. By rotating the gate rods,in a positive direction and a reverse direction, the opening degree can be changed between a fully opened state wherein the first semicircular face,and the opening degree variable channel forming part,are in parallel and a fully closed position wherein the second semicircular face,is in abutment against the opening degree variable channel forming part
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile