US3847419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed tube connectors
Assignee: STANDARD STEEL PROD CORP
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Filing: 1973-04-05
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Granted: 1974-11-12
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Expires: 1993-04-05
Abstract
Abstract Means for providing a sealed connection between the ends of tubular members which are made of material such as stainless steel which is too rigid to readily permit deforming one tube against the other by clamps as is conventionally done with soft steel tubes. A sleeve member of deformable or ductile material such as copper, aluminum or plastic is located around adjacent ends of two tubular members which preferably may be attached together by telescoping the end of one tube into an enlarged end portion of the other tube. Adjustable 360* contact clamps are then tightened around the ends of the sleeve member to deform it against the rigid tubular members thereby effecting a seal about the connection.
Inventors
- 👤 R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:32
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F01N13/1838; F01N13/1844; F01N13/185; F01N13/1855; F16; F16L; F16L25/00; F16L25/04; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4983; Y10T403/57
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
216 words
A sealed connection for fluid transmittinG exhaust tube members comprising: aligned rigid tubular members one having an enlarged diameter end portion slid over the end of the other tubular member in telescoping engagement; said rigid tubular members made of metallic material having a sufficiently great hardness to preclude forming a connection therebetween by deforming said enlarged end against the inner end by clamps; a tubular sleeve member positioned around the enlarged end of said one rigid tubular member and around the adjacent portion of the other rigid tubular member and having sufficiently large end openings permitting sliding engagement around the ends of said rigid tubular members during assembly; adjustable clamp means positioned near both ends of said sleeve member and having encircling portions therearound producing an even compressive force on the end portions of said sleeve member against said rigid tubular members which acts on the entire 360* circumference of said sleeve member; said sleeve member made of a soft and ductile metallic material having a Brinell hardness less than about 150 and said sleeve portions underlying said clamp means being deformed inwardly by said compressive force producing a line seal contact between said sleeve and said rigid tubular member on either side of said adjacent tube end portions thereby sealing the fluid within said tubes.
Claim 2
Dependent Claim
216 words
A sealed connection for fluid transmittinG exhaust tube members comprising: aligned rigid tubular members one having an enlarged diameter end portion slid over the end of the other tubular member in telescoping engagement; said rigid tubular members made of metallic material having a sufficiently great hardness to preclude forming a connection therebetween by deforming said enlarged end against the inner end by clamps; a tubular sleeve member positioned around the enlarged end of said one rigid tubular member and around the adjacent portion of the other rigid tubular member and having sufficiently large end openings permitting sliding engagement around the ends of said rigid tubular members during assembly; adjustable clamp means positioned near both ends of said sleeve member and having encircling portions therearound producing an even compressive force on the end portions of said sleeve member against said rigid tubular members which acts on the entire 360* circumference of said sleeve member; said sleeve member made of a soft and ductile metallic material having a Brinell hardness less than about 150 and said sleeve portions underlying said clamp means being deformed inwardly by said compressive force producing a line seal contact between said sleeve and said rigid tubular member on either side of said adjacent tube end portions thereby sealing the fluid within said tubes.
Claim 3
Dependent Claim
49 words
The tube connection of claim 1 in which positive means are provided between said enlarged diameter end portion of one exhaust tube member and the end of the other exhaust tube member preventing relative rotation therebetween; said positive means covered by said encircling sleeve member preventing fluid leakage thereby.
Claim 4
Dependent Claim
38 words
The tube connection of claim 2 in which said positive means include a struck-out tab member in one tube end and a corresponding groove portion in the other tube end which are operably engaged to prevent relative rotation.
Claim 5
Dependent Claim
248 words
A sealed connection for fluid transmitting exhaust members comprising; aligned rigid tubular members having end portions; said tubular members made of metallic material having sufficiently great hardness to preclude forming a connection therebetween by deforming the tubular members; a tubular metallic sleeve member positioned around the ends of said rigid tubular members and having sufficiently large end openings to permit sliding engagement around the ends of said rigid tubular members during assembly, adjustable clamp means positioned around both ends of said sleeve member producing an even compressive force on the end portions of said sleeve member against said rigid tubular members about the 360* circumference of said sleeve member; said adjustable clamp means including a rigid encircling portion about each end of said tubular sleeve member, a base portion operably connected to one end of said encircling portion providing a line contact between said clamp means and the end of said tubular sleeve member; threaded fastener means operably engaging a similarly threaded portion on said encircling portion causing said encircling portion to radially constrict said sleeve member against said rigid tubular members as said threaded fastener is moved toward said base portion; said sleeve member being made of a soft and ductile metallic material having a Brinell hardness less than about 150 whereby said sleeve portion directly underlying said clamp means is deformed inwardly by said compressive force, producing a line seal contact between said sleeve and said rigid tubular member, thereby sealing the fluid within said tubes.
Claim 6
Dependent Claim
248 words
A sealed connection for fluid transmitting exhaust members comprising; aligned rigid tubular members having end portions; said tubular members made of metallic material having sufficiently great hardness to preclude forming a connection therebetween by deforming the tubular members; a tubular metallic sleeve member positioned around the ends of said rigid tubular members and having sufficiently large end openings to permit sliding engagement around the ends of said rigid tubular members during assembly, adjustable clamp means positioned around both ends of said sleeve member producing an even compressive force on the end portions of said sleeve member against said rigid tubular members about the 360* circumference of said sleeve member; said adjustable clamp means including a rigid encircling portion about each end of said tubular sleeve member, a base portion operably connected to one end of said encircling portion providing a line contact between said clamp means and the end of said tubular sleeve member; threaded fastener means operably engaging a similarly threaded portion on said encircling portion causing said encircling portion to radially constrict said sleeve member against said rigid tubular members as said threaded fastener is moved toward said base portion; said sleeve member being made of a soft and ductile metallic material having a Brinell hardness less than about 150 whereby said sleeve portion directly underlying said clamp means is deformed inwardly by said compressive force, producing a line seal contact between said sleeve and said rigid tubular member, thereby sealing the fluid within said tubes.
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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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |