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:
Dec. 08, 1981
Filed:
Feb. 29, 1980
Vladimir N Malyshev, Novokuznetsk Kemerovskoi oblasti, SU;
Oleg G Reinik, Novokuznetsk Kemerovskoi oblasti, SU;
Petr I Jurin, Novokuznetsk Kemerovskoi oblasti, SU;
Gennady A Yarushnikov, Novokuznetsk Kemerovskoi oblasti, SU;
Grigory T Tjutikov, Novokuznetsk Kemerovskoi oblasti, SU;
Jury N Chernovsky, Kaltan Kemerovskoi oblasti, SU;
Other;
Abstract
The gate valve has a housing hermetically joined with pipelines and a closing member which is translationally traversable in between the sealing elements of the housing. A bottom end of the closing member having a bevelled edge made so that at the instance when the pipelines get intercommunicated, the passageway is established in between the abovesaid bevelled edge, the housing and the sealing elements, said passageway growing narrow towards the direction of the flow of liquid. The above feature makes it possible to rule out the onset of conditions fraught with cavitation under the closing member and bring the cavitation outside the closing member, thereby adding to the service life of the gate valve.