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. 24, 1995
Filed:
Apr. 25, 1994
Takeshi Izumitani, Edogawa-ku, Tokyo, JP;
Other;
Abstract
A level position measuring method including providing a hose having a first end and a second end; filling the hose, at least partially, with a liquid so as to form a water head; leaving the first end of the hose open to atmospheric pressure; closing the second end of the hose by airtightly fixing a pressure sensor to the second end of the hose near the water head; configuring the hose so as to define a reference level by obtaining a reference level pressure value dispatched from the pressure sensor; and measuring the level position by obtaining a level position pressure value dispatched from the pressure sensor which varies from the reference level pressure value in proportion to a vertical displacement of the second end of the hose.