Patent US3871689A successfully refreshed from Google Patents.
US3871689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for sealing a high-temperature conduit
Assignee: Individual
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Filing: 1973-03-01
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Granted: 1975-03-18
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Expires: 1993-03-01
Abstract
Abstract The device includes a hollow member mounted in the wall and sealingly connected with the conduit passing therethrough. A corrugated element is coaxially received about the conduit and connects the hollow member with the conduit. The device further includes at least one additional hollow member received about the conduit and associated with a similar corrugated elements having the same diameter, as the first-mentioned corrugated element. The additional hollow member and its corrugated elements are successively arranged with said main hollow member and define therebetween a closed space. Owing to this structure, there is ensured high reliability of sealing of a high-temperature conduit passing through metal or concrete walls.
Inventors
- 👤 Nikolai Nikolaevich Zaderei
- 👤 Arnold Serafimovich Nikiforov
- 👤 Evgeny Petrovich Ushankov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:45
CPC Classifications
F; F16; F16L; F16L51/00; F16L51/02; F16L51/025; F16L5/00; F16L5/02; F16L5/025; F16L59/00; F16L59/12; F16L59/121; G; G21; G21C; G21C13/00; G21C13/02; G21C13/032; G21C13/036; G21C13/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A device for sealing a high-temperature conduit in a wall, comprising: a first hollow member and a first corrugated member sealingly interconnected by their ends; and a second hollow member and a second corrugated member sealingly interconnected by their ends, said corrugated members being similar to each other and of the same diameters, and said first and second members being arranged coaxially about each other and about said conduit and forming a closed space around said conduit so that free ends of said first hollow member and said second corrugated member are sealingly connected to said wall and the free ends of said second hollow member and said first corrugated member are sealingly connected to said conduit.
Claim 2
Independent Claim
117 words
A device for sealing a high-temperature conduit in a wall, comprising: a first hollow member and a first corrugated member sealingly interconnected by their ends; and a second hollow member and a second corrugated member sealingly interconnected by their ends, said corrugated members being similar to each other and of the same diameters, and said first and second members being arranged coaxially about each other and about said conduit and forming a closed space around said conduit so that free ends of said first hollow member and said second corrugated member are sealingly connected to said wall and the free ends of said second hollow member and said first corrugated member are sealingly connected to said conduit.
Claim 3
Independent Claim
203 words
A device for sealing a high-temperature conduit in a wall, comprising: a hollow member mounted in said wall and sealingly connected with said conduit passing therethrough; a corrugated element arranged coaxially about said conduit and connecting said hollow member with said conduit; at least one additional hollow member received about said conduit; at least one similar additional corrugated element having a diameter equal to that of said first-mentioned corrugated element, said additional hollow member and said corrugated element associated therewith being positioned next to said first-mentioned hollow member and said first-mentioned corrugated element along said conduit; means for connecting said first-mentioned hollow member and corrugated element with said additional hollow member and corrugated element, a closed space defined between said additional hollow member and said corrugated element associated therewith and said first-mentioned hollow member and said first-mentioned corrugated element associated therewith, said corrugated element associated with said first-mentioned hollow member having one end thereof connected to said additional hollow member and the other end thereof connected to its own said first-mentioned hollow member, said corrugated element associated with said additional hollow member having one end thereof connected to said first-mentioned hollow member and the other end thereof connected to said additional hollow member.
Claim 4
Independent Claim
203 words
A device for sealing a high-temperature conduit in a wall, comprising: a hollow member mounted in said wall and sealingly connected with said conduit passing therethrough; a corrugated element arranged coaxially about said conduit and connecting said hollow member with said conduit; at least one additional hollow member received about said conduit; at least one similar additional corrugated element having a diameter equal to that of said first-mentioned corrugated element, said additional hollow member and said corrugated element associated therewith being positioned next to said first-mentioned hollow member and said first-mentioned corrugated element along said conduit; means for connecting said first-mentioned hollow member and corrugated element with said additional hollow member and corrugated element, a closed space defined between said additional hollow member and said corrugated element associated therewith and said first-mentioned hollow member and said first-mentioned corrugated element associated therewith, said corrugated element associated with said first-mentioned hollow member having one end thereof connected to said additional hollow member and the other end thereof connected to its own said first-mentioned hollow member, said corrugated element associated with said additional hollow member having one end thereof connected to said first-mentioned hollow member and the other end thereof connected to said additional hollow member.
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |