Patent US4055217A successfully refreshed from Google Patents.
US4055217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for maintaining a vapor blanket in a condensation heating facility
Assignee: AT&T Inc
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Filing: 1976-02-02
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Granted: 1977-10-25
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Expires: 1996-02-02
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 23:03
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; B; B23; B23K; B23K1/00; B23K1/012; B23K1/015
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A method for maintaining a body of secondary vapor in a condensation heating facility having a vessel, open to the atmosphere, containing a body of hot primary vapor with the body of secondary vapor interposed between the body of primary vapor and the atmosphere, the method comprising the steps of: depositing a secondary liquid on a wick mounted within the vessel, and wicking the secondary liquid through the secondary body of vapor and into contact with the body of hot primary vapor to vaporize the secondary liquid to provide supplemental secondary vapor to maintain the body of secondary vapor.
Claim 2
Independent Claim
99 words
A method for maintaining a body of secondary vapor in a condensation heating facility having a vessel, open to the atmosphere, containing a body of hot primary vapor with the body of secondary vapor interposed between the body of primary vapor and the atmosphere, the method comprising the steps of: depositing a secondary liquid on a wick mounted within the vessel, and wicking the secondary liquid through the secondary body of vapor and into contact with the body of hot primary vapor to vaporize the secondary liquid to provide supplemental secondary vapor to maintain the body of secondary vapor.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein the depositing step is accomplished by: spraying the secondary liquid onto the wick.
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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) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |