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:
Jan. 13, 1987
Filed:
May. 13, 1985
Boris F Bragin, Voroshilovgrad, SU;
Felix D Markuntovich, Voroshilovgrad, SU;
Voroshilovgradsky Mashinostroitelny Institut, Voroshilovgrad, SU;
Abstract
A gate valve used in pipeline transfer operations comprises a housing having a passage for conveying a fluid medium carrying solid particles, and a gate which is connected to a drive shaft for opening and closing the passage through an articulating joint made up of two elements. The first element of this joint is rigidly connected to the shaft and arranged with a clearance relative to the gate. The second element is rigidly connected to the gate and disposed with a clearance relative to the first element. Slots are provided in one of these elements to communicate the clearances with the passage for evacuating solids therefrom. The gate valve ensures tight closing of the passage by the gate and has a long service life.