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. 01, 1982
Filed:
Nov. 28, 1979
Applicant:
Inventors:
Fumio Wakamori, Machida, JP;
Motohisa Funabashi, Kanagawa, JP;
Mamoru Kata, Hitachi, JP;
Takazo Hirano, Hitachi, JP;
Mikihiko Onari, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02B / ;
U.S. Cl.
CPC ...
405 92 ; 137386 ;
Abstract
A water level control system for a reservoir includes steps of detecting water level, outflow rate and inflow rate of the reservoir detecting modified water level corresponding to the reservoir's content depending on the actual water level, the outflow rate and the inflow rate, and controlling the outflow rate of the reservoir in response to a deviation value between a set reference and the modified water level, thereby reducing the influence of undesirable water level fluctuation.