Patent US3563576A successfully refreshed from Google Patents.
US3563576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular joint contruction
Assignee: Baxter International Inc
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Filing: 1969-04-21
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Granted: 1971-02-16
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Expires: 1989-04-21
Abstract
Abstract A joint construction for joining juxtaposed tubular ends of glass tubing, laboratory glassware, and the like which comprises a peripheral flange formed on each of the tube ends to be joined, a sealing sleeve in sealing engagement with the outside surfaces of the tube ends and disposed between the inside faces of the flanges, and male and female slotted and threaded coupling elements which thread together over the sleeve and seat upon the exterior faces of the flanges.
Inventors
- 👤 Thomas E Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:27
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/06; F16L19/075; F16L19/02; F16L19/0231; F16L49/00; F16L49/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
178 words
A joint construction for joining juxtaposed ends of two pieces of tube and the like, for forming a flexible and quickly joined and disconnected fluidtight joint therebetween comprising: an integral rigid flange formed near each of the juxtaposed ends, each of said flanges having an outside diameter greater than the outside diameter of the adjoining tube; a semirigid sealing sleeve having an inner surface defining a substantially uniform internal bore therethrough and fitting over both of said ends between said flanges; each of the juxtaposed ends having a portion between said flange and the tube end which has a diameter larger than the internal bore of said sleeve so as to provide an interference fit with said inner surface of said sleeve; a male coupling element having a seat normally bearing against one of said flanges on its face opposite said sleeve; and a female coupling element having a seat normally bearing against the other of said flanges on its face opposite said sleeve, said coupling members being threaded together to hold said ends within said sealing sleeve.
Claim 2
Dependent Claim
178 words
A joint construction for joining juxtaposed ends of two pieces of tube and the like, for forming a flexible and quickly joined and disconnected fluidtight joint therebetween comprising: an integral rigid flange formed near each of the juxtaposed ends, each of said flanges having an outside diameter greater than the outside diameter of the adjoining tube; a semirigid sealing sleeve having an inner surface defining a substantially uniform internal bore therethrough and fitting over both of said ends between said flanges; each of the juxtaposed ends having a portion between said flange and the tube end which has a diameter larger than the internal bore of said sleeve so as to provide an interference fit with said inner surface of said sleeve; a male coupling element having a seat normally bearing against one of said flanges on its face opposite said sleeve; and a female coupling element having a seat normally bearing against the other of said flanges on its face opposite said sleeve, said coupling members being threaded together to hold said ends within said sealing sleeve.
Claim 3
Dependent Claim
21 words
The joint construction of claim 1 wherein said male coupling element has a central bore normally sleeved over said sealing sleeve.
Claim 4
Dependent Claim
37 words
The joint construction of claim 1, wherein the inner surface of said sealing sleeve carries at least one separate elastomeric O-ring for resiliently sealing said sealing sleeve and each of said ends with a resilient fluidtight seal.
Claim 5
Dependent Claim
17 words
The joint construction of claim 1 wherein the ends are tapered from the flanges to their extremities.
Claim 6
Dependent Claim
36 words
The joint construction of claim 1 wherein each of said male and female coupling elements has a longitudinal slot with a width in excess of the outside diameter of the juxtaposed tubes over which each fits.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |