Patent US3780208A successfully refreshed from Google Patents.
US3780208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite hose having a grounding wire enclosed in a sleeve and wrapped about the core tube of the hose
Assignee: FLUROCARBON COMPANY
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Filing: 1972-06-05
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Granted: 1973-12-18
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Expires: 1992-06-05
Abstract
Abstract A composite hose adapted for conveying pressurized pulsating fluids is provided with a grounding wire secured to a protective sleeve helically wound about the core tube of the hose and adapted to slip as a unit relative to the core tube and surrounding fibrous reinforcing sheath as the hose expands radially in response to pulsating pressure.
Inventors
- 👤 D Whittaker
- 👤 C Jenks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:12
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/12; F16L11/127
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
115 words
A composite hose adapted for conveying pressurized pulsating fluids comprising a core tube, a fibrous reinforcing material about the core tube and a grounding wire enclosed in a sleeve helically wound about the core tube and disposed between the core tube and fibrous material, said wire and sleeve being substantially coextensive in length with the core tube, said sleeve having an external surface adjacent the core tube and adjacent the fibrous material which is slidable thereover and an internal adhesive surface bound to the wire, whereby the said wire and its enclosing sleeve may slip as a unit relative to the fibrous material and to the core in response to radial expansion of the hose.
Claim 2
Dependent Claim
115 words
A composite hose adapted for conveying pressurized pulsating fluids comprising a core tube, a fibrous reinforcing material about the core tube and a grounding wire enclosed in a sleeve helically wound about the core tube and disposed between the core tube and fibrous material, said wire and sleeve being substantially coextensive in length with the core tube, said sleeve having an external surface adjacent the core tube and adjacent the fibrous material which is slidable thereover and an internal adhesive surface bound to the wire, whereby the said wire and its enclosing sleeve may slip as a unit relative to the fibrous material and to the core in response to radial expansion of the hose.
Claim 3
Dependent Claim
14 words
The composite hose of claim 1 having a protective sheath about the fibrous material.
Claim 4
Dependent Claim
28 words
The composite hose of claim 2 wherein the core tube is nylon, the fibrous material is nylon, the sheath is polyurethane and the tapes are poly(ethylene) terephthalate polyester.
Claim 5
Dependent Claim
28 words
The composite hose of claim 2 wherein the core tube is nylon, the fibrous material is nylon, the sheath is nylon and the tapes are poly(ethylene) terephthalate polyester.
Claim 6
Dependent Claim
29 words
The composite hose of claim 2 wherein the core tube is nylon, the fibrous material is a polyester, the sheath is polyurethane and the tapes are poly(ethylene) terephthalate polyester.
Claim 7
Dependent Claim
28 words
The composite hose of claim 2 wherein the core tube is nylon, the fibrous material is polyester, the sheath is nylon and the tapes are poly(ethylene) terephthalate polyester.
Claim 8
Dependent Claim
30 words
The composite hose of claim 1 wherein the distance between axially spaced points on adjacent convolutions of said wirE is greater than the maximum transverse dimension of the core tube.
Claim 9
Dependent Claim
23 words
The composite hose of claim 7 wherein the said distance is from about 4 to about 16 times the diameter of the hose.
Claim 10
Dependent Claim
16 words
The composite hose of claim 1 wherein the wire is a flat braid of copper wires.
Claim 11
Dependent Claim
52 words
The composite hose of claim 1 wherein the sleeve is composed essentially of two tapes, one disposed between the wire and core tube and the other disposed between the wire and fibrous material, said tapes having their facing surfaces adhesively bound to the wire and together along each side of the wire.
Claim 12
Dependent Claim
12 words
The composite hose of claim 6 wherein the tapes are a polyester.
Claim 13
Dependent Claim
14 words
The composite hose of claim 1 having one to four layers of fibrous material.
References Cited (Backward Citations)
US837512A
Cited
US3543803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |