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:
Jun. 28, 1977
Filed:
Nov. 14, 1975
Viktor Arsentievich Tatkov, Novokuznetsk, Kemerovskoi oblasti, SU;
Nikolai Nikolaevich Letov, Novokuznetsk, Kemerovskoi oblasti, SU;
Other;
Abstract
A pump for handling liquids laden with abrasive particles having impellers arranged in a counter-opposed manner on the pump shaft to rotate jointly with the latter. At the points of impeller mounting, the shaft has tapered surfaces whose apices face each other and the mating surfaces of the impellers are also tapered. At least one of the tapered surfaces of the shaft is formed by a bushing disposed with provision for moving axially along said shaft for pressing the impellers against the corresponding tapered surfaces of the shaft. This mode of mounting the impellers extends considerably the service life of the pump.