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. 28, 1987
Filed:
Sep. 09, 1985
Kurosaki Refractories Co., Ltd., Fukuoka, JP;
Abstract
A sliding nozzle apparatus for a molten metal holding vessel including a fixed nozzle member and a fixed plate therefor which are supported by an upper or fixed bracket secured to the vessel, and a movable nozzle member and a slidable plate therefor which are supported by a lower or movable bracket having one edge hinged to the upper bracket, while its opposite edge remote from its hinged connection to the upper bracket is removably connectable to the upper bracket to bring the slidable plate into contact with the fixed plate. A first set of coil springs are located adjacent to the edge of the lower bracket at which it is hinged to the upper bracket, and a second set of coil springs are located adjacent to the opposite edge of the lower bracket. The first set of coil springs are deflected to a greater degree than the second set of coil springs, or are, in other words, preloaded differently from the second set of springs.