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:
Mar. 21, 2023
Filed:
Apr. 28, 2020
Teledyne Instruments, Inc., Thousand Oaks, CA (US);
Patrick M. King, San Diego, CA (US);
Kirk W. Lovewell, El Cajon, CA (US);
TELEDYNE INSTRUMENTS, INC., Thousand Oaks, CA (US);
Abstract
A gas mixing device for a NOx detector includes a 3/2 way gas valve having a diaphragm, a first inlet port, a second inlet port, and an exit port. A gas conduit connects the exit port to a gas mixing chamber. A controller controls the diaphragm to alternate between a first position and a second position. The first inlet port may receive a sample gas and the second inlet port may receive ozone gas. In the first position of the diaphragm, a bolus of sample gas enters the conduit, and in the second position of the diaphragm, a bolus of ozone enters the conduit. The alternating boluses of sample gas and ozone mix within the conduit and within the mixing chamber. A NOx detection instrument includes the gas mixing device, an ozone gas source, and an NOsensor in fluid communication with the mixing chamber.