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. 22, 2019
Filed:
Aug. 30, 2012
Marcus Berney-smith, Morpeth, GB;
Marcus Berney-Smith, Morpeth, GB;
DRAEGER SAFETY UK LIMITED, Blyth, Northumberland, GB;
Abstract
A closed circuit breathing apparatus () and a method of operating the same, the method comprising: determining whether a sufficient amount of replenishing gas is being supplied to a breathing circuit (); sensing pressure within the breathing circuit () using a pressure sensor (); generating a pressure signal representative of the sensed pressure; determining whether the pressure signal is representative of breathing; and generating an alert if it is determined that both an insufficient amount of replenishing gas, such as oxygen, is being supplied to the breathing circuit () and that the pressure signal is representative of breathing.