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:
Apr. 24, 2018
Filed:
Oct. 11, 2013
Draeger Safety, Inc., Pittsburgh, PA (US);
Michael V. Caruso, Beaver Falls, PA (US);
Eric J. Robey, Colliers, WV (US);
Draeger Medical Systems, Inc., Andover, MA (US);
Abstract
Described herein is a gas detection system () including a housing () having an inlet () in fluid communication with an atmosphere; an analyzer () within the housing () and configured to detect and measure a gas species in the atmosphere using a gas sensor (); and a pneumatic system () contained within the housing () and in fluid communication with the inlet () to draw an air sample from the atmosphere. The pneumatic system () includes a pump (); a low flow branch () in fluid communication with the pump () and having an airflow sensor () and a first orifice (); and a high flow branch () in fluid communication with the pump () and having a second orifice (). Such a system is particularly suitable for remote sampling because it prevents the high flow needed for remote sampling to be directed towards the gas sensor withstanding only low flow. Related apparatus, systems, methods and/or articles are described.