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:
Jun. 26, 2018
Filed:
Apr. 29, 2016
Gary Michael Mcmurtry, Honolulu, HI (US);
James Robert Deluze, Honolulu, HI (US);
Gary Michael McMurtry, Honolulu, HI (US);
James Robert DeLuze, Honolulu, HI (US);
Pacific Environment Technologies, LLC, Honolulu, HI (US);
Other;
Abstract
Disclosed is a mass selective fluid bandpass filter. This filter provides for selecting gas molecules of a specific mass from a gas sample containing molecules of two or more mass species. This provides for a low power, low cost apparatus for producingHe from terrestrial sources of helium gas by selective enrichment. This invention further discloses a portable, field deployable means ofHe/He ratio determination employing one or more of the effects consisting of: statistical linear regression plots of heat ramps, variable emission currents within a quadruple mass spectrometer, use of a quadrupole mass spectrometer in concert with ultrahigh vacuum maintained by non-evaporable getter pumps, and/or construction of vacuum housing structures from non-steel or non-stainless steel alloys, and or non metallic materials selected from a group consisting of: aluminum, titanium, ceramics, or glass. This provides a compact, sensitive field deployable unit with low power consumption.