US4900064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector for fiber duct systems
Assignee: Duro Dyne Corp
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Filing: 1989-06-26
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Granted: 1990-02-13
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Expires: 2009-06-26
Abstract
Abstract A connector member for coupling flexible cylindrical tubular duct to the wall of a fibrous duct is comprised of a pair of parallel metal strips, the opposed marginal edges of which are connected to a flexible central strip. A clamp and a slip joint are provided on the respective strips for maintaining the metal strips in a cylindrical configuration, with the ends of the strips overlapping. One said strip including outwardly facing gaskets disposed at opposite sides of the wall of the fiber duct, the other strip including an inwardly facing gasket clamped about the flexible cylindrical ducting.
Inventors
- 👤 John Lyons
- 👤 Paul K. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:51
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/08; F24; F24F; F24F13/00; F24F13/02; F24F13/0209
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
153 words
A connector member for coupling a cylindrical flexible tubular duct to a wall of a fiber duct installation comprising an elongate band including a flexible central web assembly, a pair of sheet metal strips clampingly connected to the side marginal edges of said web assembly, said strips having an upper surface, an under surface and distal ends, said strips being disposed in parallel spaced relation, one said strip including on an upper surface thereof a spaced parallel pair of compressible gasket members extending upwardly beyond said surface, the spacing between said gasket members corresponding substantially to the thickness of said wall of said fiber duct, said one of said strips including at its distal ends interengageable complemental slip joint means for slidably connecting said distal ends in overlapping relation, the combination including complementary clamp means adjacent the distal ends of the other said strip for retaining said connector member in a cylindrical configuration.
Claim 2
Dependent Claim
153 words
A connector member for coupling a cylindrical flexible tubular duct to a wall of a fiber duct installation comprising an elongate band including a flexible central web assembly, a pair of sheet metal strips clampingly connected to the side marginal edges of said web assembly, said strips having an upper surface, an under surface and distal ends, said strips being disposed in parallel spaced relation, one said strip including on an upper surface thereof a spaced parallel pair of compressible gasket members extending upwardly beyond said surface, the spacing between said gasket members corresponding substantially to the thickness of said wall of said fiber duct, said one of said strips including at its distal ends interengageable complemental slip joint means for slidably connecting said distal ends in overlapping relation, the combination including complementary clamp means adjacent the distal ends of the other said strip for retaining said connector member in a cylindrical configuration.
Claim 3
Dependent Claim
49 words
A connector member in accordance with claim 1 wherein said slip joint means comprises a tongue adjacent a first said distal end extending parallel to the longitudinal axis of said strip and a tongue receiver groove adjacent a second said distal end and adapted slidably to receive said tongue.
Claim 4
Dependent Claim
26 words
A connector member in accordance with claim 1 wherein said other strip includes an inwardly directed compressible gasket member on the under surface of said strip.
Claim 5
Dependent Claim
25 words
A connector member in accordance with claim 1 wherein said central assembly is comprised of a pair of fabric layers having insulating material encompassed therebetween.
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) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |