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:
Jan. 24, 1989
Filed:
Nov. 13, 1987
Clayton J Bossart, Monroeville, PA (US);
Glenn H Fertig, Natrona Heights, PA (US);
Albert L Welker, Pittsburgh, PA (US);
Mine Safety Appliances Company, Pittsburgh, PA (US);
Abstract
A liquid separator for removing liquid from a breath sample comprises a liquid trap having a conduit passing the breath sample and opening through a check valve to reservoir chamber. Sample flow is diverted to the reservoir and ambient air is drawn back through the conduit and check valve to backflush liquid in the conduit to the reservoir. The reverse flow is activated by the presence of liquid in the sample line, periodically actuated by a timer or both. The reverse air flow may be used as a zero calibration gas for an infrared analyzer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile