US4090843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for maintaining a vapor blanket in a condensation heating facility
Assignee: AT&T Inc
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Filing: 1977-03-14
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Granted: 1978-05-23
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Expires: 1997-03-14
Abstract
Abstract This disclosure is directed to maintaining a blanket of secondary vapor intermediate a hot primary vapor and the atmosphere, in a condensation heating facility, to prevent losses of the primary vapor to the atmosphere. A secondary liquid is transported through the secondary vapor into the hot primary vapors where the secondary liquid is vaporized to supplement the secondary vapor.
Inventors
- 👤 Tze Yao Chu
- 👤 George Michael Wenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:05
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; B; B23; B23K; B23K1/00; B23K1/012; B23K1/015
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
70 words
A condensation heating facility having a vessel, open to the atmosphere, to receive therein a body of hot saturated primary vapor with a body of secondary vapor interposed between the atmosphere and the primary vapor, comprising: means for transporting a secondary liquid through the secondary body of vapor and into the body of hot saturated vapor to vaporize the secondary liquid to supplement and maintain the secondary body of vapor.
Claim 2
Dependent Claim
70 words
A condensation heating facility having a vessel, open to the atmosphere, to receive therein a body of hot saturated primary vapor with a body of secondary vapor interposed between the atmosphere and the primary vapor, comprising: means for transporting a secondary liquid through the secondary body of vapor and into the body of hot saturated vapor to vaporize the secondary liquid to supplement and maintain the secondary body of vapor.
Claim 3
Dependent Claim
23 words
The condensation heating facility as set forth in claim 1 which further comprises: means for spraying the secondary liquid onto the transporting means.
Claim 4
Dependent Claim
106 words
A condensation heating facility for heating an article to an elevated temperature, which comprises: a vessel, open to the atmosphere, to receive therein a body of hot primary vapor with a body of secondary vapor disposed between the body of hot saturated vapor and the atmosphere; means for condensing the secondary vapor to a secondary condensate; means for collecting the secondary condensate; means for wicking the collected secondary condensate through the body of secondary vapor to the hot primary vapor to evaporate the secondary condensate; and a conduit communicating between the collecting means and the wicking means to deposit the secondary condensate on the wicking means.
Claim 5
Dependent Claim
106 words
A condensation heating facility for heating an article to an elevated temperature, which comprises: a vessel, open to the atmosphere, to receive therein a body of hot primary vapor with a body of secondary vapor disposed between the body of hot saturated vapor and the atmosphere; means for condensing the secondary vapor to a secondary condensate; means for collecting the secondary condensate; means for wicking the collected secondary condensate through the body of secondary vapor to the hot primary vapor to evaporate the secondary condensate; and a conduit communicating between the collecting means and the wicking means to deposit the secondary condensate on the wicking means.
Claim 6
Dependent Claim
34 words
The condensation heating facility as set forth in claim 3 wherein: the conduit terminates in a plurality of jet nozzles, within the facility, from which the secondary condensate is sprayed onto the wicking means.
Claim 7
Dependent Claim
21 words
The condensation heating facility as set forth in claim 3, wherein the wicking means is comprised of a stainless steel mesh.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |