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:
Jul. 01, 1997
Filed:
Apr. 22, 1996
Dennis A Gibboney, Mt. Pleasant, PA (US);
Paul A Bauer, Jr, Pittsburgh, PA (US);
Dynamic Manufacturing Inc., Pittsburgh, PA (US);
Abstract
An ozone concentration sensor for use with an ozone generator. The ozone free feed gas to the ozone generator is briefly fed to the sensor which measures both the temperature of the feed gas and the time it takes a high frequency sound pulse to travel a predetermined distance in the feed gas for reference date. A portion of the output gas from the ozone generator is then fed to the sensor and the same measurements are made for the output gas. A programmed microcomputer determines the ozone concentration in the output gas from the measurements. In one embodiment, the sensor constantly receives output gas from the ozone generator. The reference measurements are made while operation of the ozone generator is briefly interrupted and feed gas passes through the ozone generator unchanged. Reference measurements may be stored and used for repeated ozone concentration calculations, so long as there is no significant change in the feed gas.