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:
Sep. 15, 1987
Filed:
Oct. 01, 1985
Louis W Erath, Abbeville, LA (US);
Gas Alarm Service, Inc., Abbeville, LA (US);
Abstract
An apparatus and method for detecting gas concentration using an infrared absorption gas detector. Noise due to vibration is substantially reduced by integrating the voltage produced by the gas detector with an integrator having an adjustable time constant. The time constant is adjusted to a long value during times when the gas concentration is remaining relatively constant. When the gas concentration is changing substantially, the time constant is adjusted to a relatively short value to allow the output of the integrator to better follow the changes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile