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. 23, 2011
Filed:
Jun. 04, 2007
Applicants:
Kenji Mitsui, Tokyo, JP;
Mototsugu Osada, Tokyo, JP;
Hiroaki Morii, Tokyo, JP;
Inventors:
Assignee:
Shinagawa Refractories Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67D 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A slide valve device for automatic surface pressure application including a slide valve having a three-layer structure, in which the movable bodies of the seal case is slidable on a support surface of a spring holder. The slide case and the seal case are coupled with each other by means of a coupling device or a coupling stopper, and the cases are slid together by means of an actuator so as to apply and release a surface pressure.