US4534777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas separation apparatus
Assignee: Technical Products Group Inc
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Filing: 1984-06-29
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Granted: 1985-08-13
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Expires: 2004-06-29
Abstract
Abstract In combination: a housing defining separate sorption and desorption chambers; gas analyzing means in communication with the desorption chamber; sorption means mounted for movement between a first condition, in which it is located in the sorption chamber, and a second condition, in which it is located in the desorption chamber; means causing a flow of gas to be analyzed through the sorption chamber when said sorption means is in said first condition; and means causing flow of gas from the desorption chamber to the analyzing means when the sorption means is in the second condition.
Inventors
- 👤 Bruce W. Castleman
- 👤 David P. McQuire
- 👤 Eugene L. Szonntagh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:15
CPC Classifications
G; G01; G01N; G01N30/00; B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0011; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/25; B01D2257/00; B01D2257/30; B01D2257/302; B01D2257/70; B01D2257/702; B01D2257/7022; B01D2257/7025; B01D2257/80; B01D2259/00; B01D2259/40; B01D2259/40007; B01D2259/40009; B01D2259/40083; B01D2259/40088; B01D2259/4009; B01D53/26; B01D53/261; Y; Y02; Y02C; Y02C20/00; Y02C20/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
105 words
In combination: a housing defining sorption and desorption chambers separated by a partition having an aperture which is bilaterally symmetrical about an axis; and sorption means comprising a plate, pivotally mounted in said aperture for rotation about said axis through first and second positions in which it substantially occludes said aperture, and a plurality of generally semicircular, mutually spaced sorption wafers mounted on one face of said plate and generally orthogonal to said axis, so that in said first position of said plate said wafers are in said sorption chamber, while in said second position of said plate said wafers are in said desorption chamber.
Claim 2
Dependent Claim
105 words
In combination: a housing defining sorption and desorption chambers separated by a partition having an aperture which is bilaterally symmetrical about an axis; and sorption means comprising a plate, pivotally mounted in said aperture for rotation about said axis through first and second positions in which it substantially occludes said aperture, and a plurality of generally semicircular, mutually spaced sorption wafers mounted on one face of said plate and generally orthogonal to said axis, so that in said first position of said plate said wafers are in said sorption chamber, while in said second position of said plate said wafers are in said desorption chamber.
Claim 3
Dependent Claim
22 words
The combination of claim 1 and means causing movement of said sorption means between said first and second positions of said plate.
Claim 4
Dependent Claim
30 words
The combination of claim 1 and means for supplying gas to be sampled to said sorption chamber and means for supplying gas from said desorption chamber to a gas analyzer.
Claim 5
Dependent Claim
163 words
In a gas analyzing system, in combination: a housing defining sorption and desorption chambers separated by a partition having an aperture which is bilaterally symmetrical about an axis, sorption means comprising a plate, pivotally mounted in said aperture for rotation about said axis through first and second positions in which it substantially occludes said aperture, and a plurality of generally semicircular mutually spaced sorption wafers mounted on one face of said plate and generally orthogonal to said axis, so that in said first position of said plate said wafers are in said sorption chamber, while in said second position of said plate said wafers are in said desorption chamber; means causing movement of said sorption means between said first and second positions of said plate; means supplying gas to be sampled to said sorption chamber; gas analyzing apparatus; and means causing circulation of gas in a closed path between said desorption chamber and said analyzing apparatus, said path including desiccant and absorbant means.
Claim 6
Dependent Claim
163 words
In a gas analyzing system, in combination: a housing defining sorption and desorption chambers separated by a partition having an aperture which is bilaterally symmetrical about an axis, sorption means comprising a plate, pivotally mounted in said aperture for rotation about said axis through first and second positions in which it substantially occludes said aperture, and a plurality of generally semicircular mutually spaced sorption wafers mounted on one face of said plate and generally orthogonal to said axis, so that in said first position of said plate said wafers are in said sorption chamber, while in said second position of said plate said wafers are in said desorption chamber; means causing movement of said sorption means between said first and second positions of said plate; means supplying gas to be sampled to said sorption chamber; gas analyzing apparatus; and means causing circulation of gas in a closed path between said desorption chamber and said analyzing apparatus, said path including desiccant and absorbant means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |