Gas testing apparatus
AssigneeCarrier Corporation
InventorsHarry F. Klodowski, Kenneth B. Barrett, Phil Hider
Life of this patent
Estimating the term…
Abstract
A gas testing apparatus of the type that directs a stream of gas to be tested through a tube containing reagent chemicals. The apparatus has a connector fitting to enable it to be connected to a closed system containing the gas to be tested, a base member having an orifice that reduces the pressure of the gas delivered to the testing tube to near atmospheric, a sliding cover that encloses the testing tube when it is positioned in the holder, and a rising stem indicator that indicates that gas flow has commenced through the tube. The apparatus also has tube seat seals for insuring that all gas entering the apparatus must flow through and not bypass the testing tube.
Claims9
A gas testing apparatus for use with a gas testing tube and in which a gas to be tested flows in an upstream to downstream direction through said apparatus comprising:
- a connector fitting adapted to connect to a source of gas to be tested;
- a base member having
- a pressure reducing orifice,
- a first testing tube receiver and
- a fluid flow conduit for directing a flow of gas to be tested from said connector fitting through said pressure reducing orifice to said first testing tube receiver;
- a cover slideably mounted to said base member, said cover having
- a LOAD position in which said cover is open and
- a TEST/STORE position in which said cover is shut;
- means mounted to said base member for latching said cover in both said open or LOAD position and in said shut or TEST/STORE position;
- and
- a flow indicator mounted in said cover, said flow indicator having
- a second testing tube receiver and
- means for indicating that there is a flow of gas through said testing tube.
Dependencies are inferred from the claim text.