Patent US4628725A successfully refreshed from Google Patents.
Patent US4815659A successfully refreshed from Google Patents.
US4815659A
Expired / Lapsed
US
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Method for releasing a gas into the atmosphere
Assignee: GAS TECHNOLOGY ENERGY CONCEPTS LLC
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Filing: 1987-09-16
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Granted: 1989-03-28
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Expires: 2007-09-16
Abstract
Abstract An apparatus for releasing gaseous material into the atmosphere employs a sorbent material that is sorptively saturated with a predetermined quantity of the gaseous material at a predetermined pressure, preferably approximately equal to atmospheric pressure. The gaseous material to be released preferably has a vapor pressure lower than the predetermined pressure at which the sorbent material is sorptively saturated. The apparatus also includes capability of selectively exposing the sorbent material to the atmosphere in order to allow the gaseous material to be desorptively released.
Inventors
- 👤 John W. Turko
- 👤 Kenneth S. Czerwinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:44
CPC Classifications
A; A01; A01M; A01M1/00; A01M1/20; A01M1/2022; A01M1/2027; A01M1/2038; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
A method of releasing a gaseous material into the atmosphere, said method comprising: providing a sorbent material; heating and depressurizing said sorbent material to a pressure lower than atmosphere pressure; sorptively saturating said depressurized sorbent material with a predetermined quantity of the gaseous material at approximately atmospheric pressure, the gaseous material having a vapor pressure lower than atmospheric pressure; and exposing said sorptively saturated sorbent material to the atmosphere in order to allow the gaseous material to be desorptively released to the atmosphere.
Claim 2
Independent Claim
83 words
A method of releasing a gaseous material into the atmosphere, said method comprising: providing a sorbent material; heating and depressurizing said sorbent material to a pressure lower than atmosphere pressure; sorptively saturating said depressurized sorbent material with a predetermined quantity of the gaseous material at approximately atmospheric pressure, the gaseous material having a vapor pressure lower than atmospheric pressure; and exposing said sorptively saturated sorbent material to the atmosphere in order to allow the gaseous material to be desorptively released to the atmosphere.
Claim 3
Dependent Claim
14 words
A method according to claim 1, wherein said sorbent material is an adsorbent material.
Claim 4
Dependent Claim
14 words
A method according to claim 2, wherein said adsorbent material includes an activated carbon.
Claim 5
Dependent Claim
14 words
A method according to claim 1, wherein said sorbent material is an absorbent material.
Claim 6
Dependent Claim
13 words
A method according to claim 1, wherein the gaseous material is an odorant.
Claim 7
Dependent Claim
14 words
A method according to claim 1, wherein the gaseous material is an insect repellant.
Claim 8
Dependent Claim
13 words
A method according to claim 1, wherein the gaseous material is an antiseptic.
Claim 9
Dependent Claim
24 words
A method according to claim 1, wherein the gaseous material is introduced onto said sorbent material in a gaseous state and sorptively saturated thereby.
Claim 10
Dependent Claim
51 words
A method according to claim 1, wherein the gaseous material is introduced onto said sorbent material in a liquid state, said vapor pressure being sufficiently low to allow at least a portion of said predetermined quantity of the gaseous material to be sorbed by the sorbent material in a gaseous state.
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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) | 1992-03-27 | 1992-09-26 | 1993-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-27 | 1996-09-26 | 1997-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-27 | 2000-09-26 | 2001-03-28 | $7700.00 | Window Closed / Lapsed |