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:
Oct. 11, 1983
Filed:
Dec. 02, 1980
Applicant:
Inventor:
Sachio Tsunoda, Yokohama, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
60398 ; 415500 ; 417-2 ;
Abstract
In a pumping-up hydroelectric power plant comprising a single speed main pump/turbine and a booster pump operable in series in a pumping operation between an upper reservoir and a lower reservoir, a water head shared by said booster pump is varied depending on a variation in the static head between the two reservoirs for maintaining the operation of the main pump/turbine always in a maximum efficiency range.