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. 20, 1978
Filed:
Apr. 12, 1977
Yoshio Kurakake, Ohbu, JA;
Aquatech Co., Ltd., Ohbu, JA;
Abstract
This invention relates to an improved vertical swinging-blade water wheel for converting a kinetic energy of a substantially horizontal stream into mechanical energy in which a pair or pairs of blade wheels are disposed symmetrically with respect to an output shaft, thereby forming a composite water wheel and the water wheel itself as a whole is prevented from rotating. Further, a plurality of blade wheels vertically arranged with the phases of the blades deviated through a predetermined angle may prevent interference of streams between the blades and equalize the fluctuations of the driving torques, thereby improving the efficiency and securing a relatively large power output by using a small-sized blade wheel with a small number of blades. Since the water wheel itself will not rotate as a whole, it may be used as a power source for light buoy generators floating in the water and underwater pumps.