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US 6,883,365 B2Granted
Focusing device for volatile and semivolatile organic compounds in the gaseous phase
AssigneeDani Strumentazione Analitica S.p.A.
InventorUmberto Saini Fasanotti
Life of this patent
Estimating the term…
Abstract
A focusing device for volatile and semi-volatile organic compounds in the gaseous phase, comprising a support structure, a container for said organic compounds, a cooling element and a heating element for their transfer to the analysis system, characterized in that said cooling element and said heating element are positioned in two separate regions of said support structure and form a single block movable relative to said container.
Claims9
A focusing device for volatile and semi-volatile organic compounds in the gaseous phase, said focusing device comprising:
- a) a container consisting of a tubular elements, the central portion of which receives organic compounds to be analyzed;
- b) a block movable relative to said container;
- c) a cooling element situated proximate to said container for concentrating said organic compounds, the length of said cooling element being substantially equal to the axial length of said central portion;
- d) a heating element situated proximate to said container for transferring said organic compounds from said focusing device to a gas analysis system, the length of said heating element being substantially equal to the axial length of said central portion;
- e) said cooling element and said heating element being secured to two axially separated regions on said block so that there is no thermal interaction between said elements;
- f) a support structure including spaced first means at opposite sides thereof for supporting the opposite ends of said container;
- g) said support structure further including second means for supporting said block for movement relative to said container;
- h) said block movable along said second means for supporting same between two extreme positions;
- i) said block, in one extreme position, positioning said cooling element in operative relation to said central portion of said container and said heating element in non-operative relation to said central portion;
- and
- j) said block, in its other extreme position, positioning said heating element in operative relation to said central portion of said container and said cooling element in non-operative relation to said central portion.
8 more elements
A focusing device for volatile and semi-volatile organic compounds in the gaseous phase, said focusing device comprising:
- a) a container consisting of an elongated tubular duct, the central portion of which is adapted to receive organic compounds to be analyzed;
- b) a support structure including first, axially spaced means for supporting the opposite ends of said container;
- c) a cooling element situated proximate to said container for concentrating the organic compounds, the length of said cooling element being substantially equal to the axial dimension of the central portion of said container;
- d) a heating element situated proximate to said container for transferring the organic compounds from said focusing device to a gas analysis system, the length of said heating element being substantially equal to the axial dimension of the central portion of said container;
- e) a block movable relative to said container in the axial direction;
- f) said cooling element and said heating element secured to two separate spaced apart regions on said block so that there is no thermal interaction between said heating and cooling elements;
- g) said support structure further including second means for supporting said block for movement relative to said container;
- h) said block being movable along said second means for supporting same, in an axial direction, between two extreme positions;
- i) said block, in one extreme position, positioning said cooling element in operative relation to said central portion of said container and said heating element in non-operative relation to said central portion;
- and
- j) said block, in its other extreme position, positioning said heating element in operative relation to said central portion of said container and said cooling element in non-operative relation to said central portion.
8 more elements
Dependencies are inferred from the claim text.