US 12,359,948 B2
Portable gas monitor
Charles Daniel Elkins, Wadsworth, OH (US); David Ernest Walder, Wadsworth, OH (US); Holden Chase Leblanc, Wadsworth, OH (US); Steve Woodrow Smith, Wadsworth, OH (US); and Daniel Dwayne Duncan, Wadsworth, OH (US)
Assigned to Elkins Earthworks, LLC, Wadsworth, OH (US)
Filed by Elkins Earthworks, LLC, Wadsworth, OH (US)
Filed on Oct. 27, 2022, as Appl. No. 17/975,183.
Claims priority of provisional application 63/272,756, filed on Oct. 28, 2021.
Prior Publication US 2023/0135269 A1, May 4, 2023
Int. Cl. G01D 21/02 (2006.01)
CPC G01D 21/02 (2013.01) 20 Claims
OG exemplary drawing
 
1. A handheld portable monitor that is configured to obtain and/or measure one or more properties of fluid at a test site; said handheld portable monitor is configured to enable a user to carry said handheld portable monitor to a test site to be tested and to enable the user to monitor and/or obtain information about one or more properties of the fluid at the test site; said handheld portable monitor is configured to enable the user to carry said handheld portable monitor from the test site; said handheld portable monitor having a total weight of less than 20 pounds and a total volume of less than 500 cubic inches; said handheld portable monitor including one or more fluid connectors that enable said handheld portable monitor to test fluid at the test site and thereafter enable said handheld portable monitor to be removed from the test site after completion of testing; said handheld portable monitor including a sensor system to obtain and/or to measure one or more properties of the fluid located at the test site; said sensor system including a) first and second sample paths and b) a valve system that controls fluid flow between said first and second sample paths; a first sensor arrangement is connected to said first sample path; a second sensor arrangement is connected to said second sample path; said first sensor arrangement includes a first hydrogen sensor; said valve system including a path valve; and
wherein said valve system causing said path valve to allow the test fluid to flow through said first sample path when a hydrogen content in the test fluid is at least partially determined by said first hydrogen sensor to be at or above a predetermined level; and
wherein said valve system causing said path valve to redirect the test fluid to flow through said second sample path after the hydrogen content in the test fluid is at least partially determined by said first hydrogen sensor to be below said predetermined level.