Abstract A chamber for analyzing test samples of materials, such as used in spacecrafts, under certain predetermined environmental conditions in order to determine autoignition temperatures and degree of decomposition is controlled atmospheres. The apparatus includes an elongated hermetically sealed cylindrical chamber which has a plurality of couplings carried thereon. A vacuum pump, a source of gas, a bubbler system which bubbles through a mercury bath, a valve and other various items may be coupled to the couplings in order to produce predetermined environmental conditions within the chamber. The chamber is also provided with a viewing port and a thermocoupled probe for measuring the temperature of the test sample.
Inventors
👤 Fred D Evans
👤 Carlos L Springfield
👤 Coleman J Bryan
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-28 19:44
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/50; G01N25/52
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
9 words
an opening in the center of said top cover;
Claim 2
Dependent Claim
13 words
a first gasket positioned on said top cover and having an opening therein;
Claim 3
Dependent Claim
11 words
a piece of glass positioned on top of said first gasket;
Claim 4
Dependent Claim
17 words
a second gasket positioned on top of said piece of glass and having an opening therein; and
Claim 5
Dependent Claim
184 words
an attachment plate engaging said second gasket and detachably connected to said top cover and having an opening therein; whereby said openings in said top cover, said first and second gaskets and said attachment plate provide a view port for inspecting said test sample; E. a thermocoupled probe having one end engaging said test sample and the other end extending through said first gasket; F. a plurality of couplings carried by said cylindrical chamber for providing communication with the interior thereof; G. a vacuum pump coupled to one of said couplings for evacuating said cylindrical chamber prior to running a test on said test sample; H. a source of gas coupled to another of said couplings for selectively producing a particular environmental condition within said cylindrical chamber; I. a mercury bath; J. a tUbe having one end coupled to another of said couplings and the other end immersed in said mercury bath for maintaining a constant predetermine pressure within said cylindrical chamber; and K. means for heating said cylindrical chamber, whereby said test sample can be exposed to various temperatures in a predetermined environment.