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:
Mar. 19, 1985
Filed:
Jan. 13, 1984
Boris F Bragin, Voroshilovgrad, SU;
Jury B Korotkikh, Voroshilovgrad, SU;
Felix D Markuntovich, Voroshilovgrad, SU;
Evgeny P Olofinsky, Moscow, SU;
Other;
Abstract
A gate valve for a pipeline has a housing with butt pipes which define a passage with the pipeline and a gate having a hole and engageable with a butt pipe for shutting-off the passage. The gate is connected at its ends to ends of drive rods accommodated in the housing. The gate and each of the rods have equal areas taken in cross-sections perpendicular to the axis of the rods. The ends of the gate and the ends of the rods connected thereto have shaped end faces facing toward each other and designed for the passage inside the housing of solid particles of a fluid being conveyed during reciprocations of the gate from a space partially occupied by the gate to a space being left by the rod adjacent thereto, and also from a space occupied by the other of the rods to a space being left by the part of the gate adjacent thereto.