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:
May. 22, 2007
Filed:
Aug. 05, 2005
Tokio Sugi, Tokyo, JP;
Tomoyuki Okumura, Tokyo, JP;
Tokio Sugi, Tokyo, JP;
Tomoyuki Okumura, Tokyo, JP;
Tokyo Keiso Co., Ltd., Tokyo, JP;
Tokyo Magnet Engineering Co., Ltd., Tokyo, JP;
Abstract
A flow meter outputs an electric signal of a position a float within a taper-shaped tube precisely. A taper-shaped tube is made of an approximately transparent material, is mounted approximately vertically, and circulates a fluid such as water or the like, and a float is arranged within the taper-shaped tube so as to displace in a vertical direction in correspondence to a flow rate of the fluid. An LED irradiates a light ray to the taper-shaped tube and the float, makes the light ray to transmit through the taper-shaped tube, and generates a transmitted light ray. The image sensor outputs a digital image of the float within the taper-shaped tube, and a control portionexecutes an input process of the digital signal detects the position of the float, and outputs an electric signal showing a flow rate of the fluid.