Measuring and testing – Gas analysis – By vibration
Patent
1977-04-14
1978-08-29
Queisser, Richard C.
Measuring and testing
Gas analysis
By vibration
73204, G01N 2704, G01F 168
Patent
active
041095103
ABSTRACT:
A housing has elongated cavities in which four hot wires forming the arms of a bridge are disposed. Each hot wire comprises a first segment bent in half to extend along the length of the cavity away from a junction, and a second segment bent in half to extend along the length of the cavity away from the junction in the opposite direction from the first segment. The junction is centrally located relative to the ends of the cavity. The first and second segments are electrically connected to each other at one end and are electrically connected to other hot wires in the bridge at the other end by a printed circuit board at the junction. The middle of each segment is wrapped around first and second closely spaced rods deformed to exert tension on the segment. The circuit board is located in a chamber having a larger cross section than the cavities. In using the apparatus for chromatography, unknown gases in a carrier enter one of the cavities near the chamber. A reference gas enters the chamber to prevent the unknown gases from flowing to the chamber. The gases exit from the ends of the cavity.
REFERENCES:
patent: 2269850 (1942-01-01), Hebler
patent: 2619409 (1952-11-01), Spracklen
patent: 3084536 (1963-04-01), McNabb
patent: 3474660 (1969-10-01), Dooley
patent: 3704984 (1972-12-01), Kiefer
patent: 3888110 (1975-06-01), Clark
patent: 3971247 (1976-07-01), Rodder
Kreitman Stephen A.
Queisser Richard C.
LandOfFree
Fluid measuring apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid measuring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid measuring apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1625687