US5622210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible hose with composite core
Assignee: LSP Specialty Products Co
•
Filing: 1995-06-12
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Granted: 1997-04-22
•
Expires: 2015-06-12
Abstract
Abstract A flexible hose comprising a composite polymeric core with a degradation-resistant liner and a thermoplastic elastomeric liner coating, the core preferably being surrounded by a protective sheath. The degradation-resistant liner is optionally a polyolefin or fluorine-containing polyolefin and can have a convoluted inside surface. The composite core can optionally include a vapor barrier and leak indicator, and a tracer can be provided to indicate twisting of the sheath.
Inventors
- 👤 Chuck Crisman
- 👤 Russell Chudd
- 👤 Philip A. Mulvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:01
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/115; E; E03; E03C; E03C1/00; E03C1/02; E03C1/025
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
35 words
A flexible connector hose comprising a composite tubular core consisting essentially of an extruded tubular liner made of linear low density polyethylene surrounded by a coextruded, contacting tubular liner coating made of a thermoplastic elastomer.
Claim 2
Dependent Claim
35 words
A flexible connector hose comprising a composite tubular core consisting essentially of an extruded tubular liner made of linear low density polyethylene surrounded by a coextruded, contacting tubular liner coating made of a thermoplastic elastomer.
Claim 3
Dependent Claim
15 words
The hose of claim 1 wherein the elastomer is made of propylene and EPDM rubber.
Claim 4
Dependent Claim
14 words
The hose of claim 1 wherein the liner has a continuously convoluted inside surface.
Claim 5
Dependent Claim
15 words
The hose of claim 3 wherein the inside surface of the liner has annular convolutions.
Claim 6
Dependent Claim
15 words
The hose of claim 3 wherein the inside surface of the liner has spiral convolutions.
Claim 7
Dependent Claim
24 words
The hose of claim 1 further comprising a vapor or gas barrier material disposed outwardly of said liner and adjacent to said liner coating.
Claim 8
Dependent Claim
10 words
The hose of claim 1 further comprising a leak indicator.
Claim 9
Dependent Claim
22 words
The hose of claim 7 wherein the leak indicator is a dye-filled, foamed polymeric layer disposed between the liner and liner coating.
Claim 10
Dependent Claim
18 words
The hose of claim 7 wherein the leak indicator is powder disposed between the liner and liner coating.
Claim 11
Dependent Claim
16 words
The hose of claim 1 wherein the composite tubular core is surrounded by a protective sheath.
Claim 12
Dependent Claim
39 words
The hose of claim 10 wherein the protective sheath is made of a material selected from the group consisting of braided stainless steel wire, galvanized steel wire, aluminum wire, tin/copper alloy wire, polyamide fibers, textile fibers and synthetic threads.
Claim 13
Dependent Claim
16 words
The hose of claim 10 wherein the protective sheath is covered by a polymeric coating layer.
Claim 14
Dependent Claim
14 words
The hose of claim 10, further comprising a twist indicator for the protective sheath.
Claim 15
Dependent Claim
17 words
The hose of claim 1 wherein the composite tubular core is surrounded by a thermosetting polyester resin.
Claim 16
Dependent Claim
22 words
The hose of claim 11, further comprising a flexible coating overlying the sheath that is made of a melt processable thermoplastic material.
Claim 17
Dependent Claim
84 words
A connector hose assembly comprising a tubular core consisting essentially of a polyolefinic liner made of a material selected from the group consisting of low density polyethylene, linear low density polyethylene, high density polyethylene, copolymer polypropylene, homopolymer polypropylene, and mixtures thereof, a braided protective sheath surrounding the core; further comprising an extruded tubular liner coating made of a thermoplastic elastomer, the liner coating being disposed between the polyolefinic liner and the protective sheath, and at least one end fitting connected to the protective sheath.
Claim 18
Dependent Claim
84 words
A connector hose assembly comprising a tubular core consisting essentially of a polyolefinic liner made of a material selected from the group consisting of low density polyethylene, linear low density polyethylene, high density polyethylene, copolymer polypropylene, homopolymer polypropylene, and mixtures thereof, a braided protective sheath surrounding the core; further comprising an extruded tubular liner coating made of a thermoplastic elastomer, the liner coating being disposed between the polyolefinic liner and the protective sheath, and at least one end fitting connected to the protective sheath.
Claim 19
Dependent Claim
12 words
The hose assembly of claim 16 wherein the core is continuously convoluted.
Claim 20
Dependent Claim
16 words
The hose assembly of claim 16 further comprising a polymeric outer coating surrounding the protective sheath.
Claim 21
Dependent Claim
16 words
The hose assembly of claim 16 wherein the protective sheath is made of braided metal wire.
Claim 22
Dependent Claim
15 words
The hose assembly of claim 16 wherein the protective sheath is made of polyamide fibers.
Claim 23
Dependent Claim
11 words
The hose assembly of claim 16, further comprising a twist indicator.
Claim 24
Dependent Claim
11 words
The hose assembly of claim 16, further comprising a leak indicator.
Claim 25
Dependent Claim
26 words
The hose assembly of claim 16, further comprising a barrier substantially impermeable to volatile materials that is disposed between the convoluted core and the protective sheath.
Claim 26
Dependent Claim
22 words
The hose of claim 14, further comprising a flexible coating overlying the sheath that is made of a melt processable thermoplastic material.
Claim 27
Dependent Claim
27 words
The hose of claim 1 comprising first and second ends, in combination with a connector fitting attached to at least one of said first and second ends.
Claim 28
Dependent Claim
17 words
The hose of claim 1 wherein the composite tubular core is surrounded by a braided metallic sheath.
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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) | 2000-04-21 | 2000-10-21 | 2001-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-21 | 2004-10-21 | 2005-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-21 | 2008-10-21 | 2009-04-22 | $7700.00 | Window Closed / Lapsed |