US3812705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for degassing a sample
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
•
Filing: 1972-08-07
•
Granted: 1974-05-28
•
Expires: 1992-08-07
Abstract
Abstract Device for degassing a sample and measuring the gas therein having a vertically movable chamber for the sample which in its upper sample loading position includes actuating means to flow a curtain of protective gas therearound and further includes carrier gas flowing through the chamber in both the upper loading position and the lower testing position.
Inventors
- 👤 P Boillot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:51
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/105; H05B6/108; G; G01; G01N; G01N33/00; G01N33/20; G01N33/202; G01N33/2022; G01N33/2025
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
146 words
A device for degassing a sample comprising a degassing chamber having an entrance and a treatment enclosure for heat treating a sample positioned therein; said chamber having a longitudinal axis; a support member mounted in said chamber for supporting the sample; said support member being movable along said axis between a sample loading position located at the entrance of said degassing chamber and a sample testing position located in said treatment enclosure; an obturation member provided for said chamber, said obturation member being selectively openable and closable; means providing carrier gas flowing through said chamber; means providing a curtain of protective gas at said chamber entrance when said obturation member is in an open position, and means connecting said support element and said obturation member for simultaneously opening and closing said obturation member with respect to the position of said support element within said degassing chamber.
Claim 2
Independent Claim
146 words
A device for degassing a sample comprising a degassing chamber having an entrance and a treatment enclosure for heat treating a sample positioned therein; said chamber having a longitudinal axis; a support member mounted in said chamber for supporting the sample; said support member being movable along said axis between a sample loading position located at the entrance of said degassing chamber and a sample testing position located in said treatment enclosure; an obturation member provided for said chamber, said obturation member being selectively openable and closable; means providing carrier gas flowing through said chamber; means providing a curtain of protective gas at said chamber entrance when said obturation member is in an open position, and means connecting said support element and said obturation member for simultaneously opening and closing said obturation member with respect to the position of said support element within said degassing chamber.
Claim 3
Dependent Claim
35 words
A device according to claim 1 in which said enclosure and said support are concentrically arranged tubes, and openings are provided in said support tube to allow gases released from said sample to pass therein.
Claim 4
Dependent Claim
20 words
A device according to claim 1 in which a discharge channel extends from said enclosure to outside of said chamber.
Claim 5
Dependent Claim
19 words
A device according to claim 3 in which said discharge channel is an axial cavity connected to said enclosure.
Claim 6
Dependent Claim
51 words
A device according to claim 1 in which said control means comprises an element initiating actuation of said protective gas means to allow said protective gas to flow when said enclosure is in the sample loading position and for stopping said actuation when said enclosure is in the sample testing position.
Claim 7
Independent Claim
172 words
A device for degassing a sample, comprising a degassing chamber, said chamber having a treatment enclosure region for heat treating of a sample enclosed therein and an entrance region with an aperture and adjoining said treatment enclosure region, a sample support member movably mounted in said chamber between a sample loading position in said entrance region and a sample testing position in said treatment enclosure region, a movable obturation member having a first position spaced from said aperture to permit access to said entrance region through said aperture and a second position sealingly closing said aperture, gas inlet means in said entrance region for providing a curtain of protective gas at said entrance region in said first position of said obturation member, and common control means for moving said support member and obturation member, whereby said support member is moved to said loading position when the obturation member is in said first position, and said support member is moved to said testing position when said obturaTion member is in said second position.
Claim 8
Independent Claim
172 words
A device for degassing a sample, comprising a degassing chamber, said chamber having a treatment enclosure region for heat treating of a sample enclosed therein and an entrance region with an aperture and adjoining said treatment enclosure region, a sample support member movably mounted in said chamber between a sample loading position in said entrance region and a sample testing position in said treatment enclosure region, a movable obturation member having a first position spaced from said aperture to permit access to said entrance region through said aperture and a second position sealingly closing said aperture, gas inlet means in said entrance region for providing a curtain of protective gas at said entrance region in said first position of said obturation member, and common control means for moving said support member and obturation member, whereby said support member is moved to said loading position when the obturation member is in said first position, and said support member is moved to said testing position when said obturaTion member is in said second position.
Claim 9
Dependent Claim
51 words
The device of claim 6 wherein said degassing chamber comprises a cylinder, one end of said cylinder forms said entrance region, and the central portion thereof forms said treatment region, and further comprising means extending through the other end of said cylinder for axially moving said support member in said chamber.
Claim 10
Dependent Claim
27 words
The device of claim 7 wherein said means extending through said other end of said chamber comprises gas discharge tube means for withdrawing gases from said chamber.
References Cited (Backward Citations)
US3188180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |