Patent US3797564A successfully refreshed from Google Patents.
US3797564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable soft packing seal
Assignee: IC GROUP Inc A CORP OF DE
•
Filing: 1972-04-17
•
Granted: 1974-03-19
•
Expires: 1992-04-17
Abstract
Abstract A soft packing seal means for use in a rigid flange connection in fluid carrying piping and more particularly to piping having internal tubing carrying a separate fluid other than that carried in the piping, said seal means being externally adjustable without disturbing the rigid flange connection and providing visual means of detecting leakage.
Inventors
- 👤 H Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:23
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/002; F16J15/004; F16L; F16L23/00; F16L23/16; F16L23/167; F28; F28F; F28F9/00; F28F9/02; F28F9/0236; F28F9/0241; F28F2230/00; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10S165/067; Y10S165/068
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
166 words
An elongated conduit assembly comprising: a first conduit; a second conduit having at least the portion thereof adjacent said first conduit generally coaxially aligned with respect to said first conduit and spaced therefrom in an axial direction; retaining means carried by said conduits and releasably retaining said conduits in coaxial spaced alignment; interior means axially received within at least a portion of said first conduit sealing means disposed axially intermediate the respective adjacent axial ends of said conduits and radially intermediate a portion of said interior means and said retaining means and being operative in sealing engagement with said interior means and said retaining means to prevent fluid communication between the interior and exterior of said conduits through the space between said respective axial ends; and said sealing means including a first sealing portion spaced in said axial direction from a second sealing portion and adjusting means externally adjustable independent of said retaining means to selectively move said sealing portions in opposite directions to each other.
Claim 2
Dependent Claim
166 words
An elongated conduit assembly comprising: a first conduit; a second conduit having at least the portion thereof adjacent said first conduit generally coaxially aligned with respect to said first conduit and spaced therefrom in an axial direction; retaining means carried by said conduits and releasably retaining said conduits in coaxial spaced alignment; interior means axially received within at least a portion of said first conduit sealing means disposed axially intermediate the respective adjacent axial ends of said conduits and radially intermediate a portion of said interior means and said retaining means and being operative in sealing engagement with said interior means and said retaining means to prevent fluid communication between the interior and exterior of said conduits through the space between said respective axial ends; and said sealing means including a first sealing portion spaced in said axial direction from a second sealing portion and adjusting means externally adjustable independent of said retaining means to selectively move said sealing portions in opposite directions to each other.
Claim 3
Dependent Claim
40 words
An elongated conduit assembly as specified in claim 1 wherein each of said sealing portions includes coaxially aligned and axially engaging backup, compression and soft packing rings, with said packing rings being located axially intermediate said backup and compression rings.
Claim 4
Dependent Claim
28 words
An elongated conduit assembly as specified in claim 1 wherein the space between said first and second sealing portions is visually observable from the exterior of said conduits.
Claim 5
Dependent Claim
173 words
A heat exchanger comprising: a first conduit; a second conduit having a least the portion thereof adjacent said first conduit coaxially aligned with respect to said first conduit and spaced therefrom in an axial direction; a heat exchanging tube bundle axially received within at least a portion of said first conduit and having a floating tube header adjacent one end thereof; retaining means carried by said conduits and releasably retaining said conduits in coaxial spaced alignment; sealing means disposed axially intermediate the respective adjacent axial ends of said conduits and radially intermediate a portion of said tube header and said retaining means and being operative in sealing engagement with said tube header and said retaining means to prevent fluid communication between the interior and exterior of said conduits through the space between said respective axial ends; and said sealing means including a first sealing portion spaced from a second sealing portion, and adjusting means externally adjustable independent of said retaining means to selectively move said sealing portions in opposite directions to each other.
Claim 6
Dependent Claim
173 words
A heat exchanger comprising: a first conduit; a second conduit having a least the portion thereof adjacent said first conduit coaxially aligned with respect to said first conduit and spaced therefrom in an axial direction; a heat exchanging tube bundle axially received within at least a portion of said first conduit and having a floating tube header adjacent one end thereof; retaining means carried by said conduits and releasably retaining said conduits in coaxial spaced alignment; sealing means disposed axially intermediate the respective adjacent axial ends of said conduits and radially intermediate a portion of said tube header and said retaining means and being operative in sealing engagement with said tube header and said retaining means to prevent fluid communication between the interior and exterior of said conduits through the space between said respective axial ends; and said sealing means including a first sealing portion spaced from a second sealing portion, and adjusting means externally adjustable independent of said retaining means to selectively move said sealing portions in opposite directions to each other.
References Cited (Backward Citations)
CH111210A
Cited
US2177508A
Cited
US2496154A
Cited
US2747900A
Cited
US2954742A
Cited
US3187810A
Cited
US3317221A
Cited
US3327777A
Cited
US3377087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |