Patent US4230899A successfully refreshed from Google Patents.
US4230899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroconductive hose for cleaner
Assignee: Individual
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Filing: 1978-08-21
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Granted: 1980-10-28
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Expires: 1998-08-21
Abstract
Abstract A hose for cleaners comprising a bellows-shaped hose main body and two reinforcing synthetic resin elements arranged side by side axially of the hose and helically wound on and attached to the inner surface of the hose main body. Each of the reinforcing helical elements has embedded therein a conductor comprising a hard steel wire and a plurality of thin copper wires provided on the outer periphery of the hard steel wire and extending longitudinally thereof.
Inventors
- 👤 Shiro Kanao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:58
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/118; F16L11/1185; A; A47; A47L; A47L9/00; A47L9/24; H; H01; H01B; H01B7/00; H01B7/0072; H01B7/17; H01B7/18; H01B7/22; H01B7/221
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
90 words
An electroconductive hose for cleaners comprising a bellows-shaped hose main body and two reinforcing synthetic resin elements arranged side by side axially of the hose and helically wound on and attached to the inner surface of the hose main body, each of the reinforcing helical elements having embedded therein an electrical conductor comprising a hard steel wire and a plurality of thin copper wires provided on the outer periphery of the hard steel wire and extending longitudinally thereof, said thin copper wires arranged substantially parallel to said hard steel wire.
Claim 2
Dependent Claim
90 words
An electroconductive hose for cleaners comprising a bellows-shaped hose main body and two reinforcing synthetic resin elements arranged side by side axially of the hose and helically wound on and attached to the inner surface of the hose main body, each of the reinforcing helical elements having embedded therein an electrical conductor comprising a hard steel wire and a plurality of thin copper wires provided on the outer periphery of the hard steel wire and extending longitudinally thereof, said thin copper wires arranged substantially parallel to said hard steel wire.
Claim 3
Dependent Claim
35 words
A hose as defined in claim 1 wherein the plurality of thin copper wires are arranged in parallel or substantially in parallel to one another over the entire outer periphery of the hard steel wire.
Claim 4
Dependent Claim
33 words
A hose as defined in claim 1 wherein the plurality of thin copper wires are in the form of a bundle extending along part of the outer periphery of the hard steel wire.
Claim 5
Dependent Claim
16 words
A hose as defined in claim 3 wherein the hard steel wire is a piano wire.
Claim 6
Dependent Claim
35 words
A hose as defined in claim 1 wherein the plurality of thin copper wires are twisted together in the form of a bundle extending along part of the outer periphery of the hard steel wire.
Claim 7
Dependent Claim
18 words
A hose as defined in claim 1 wherein said thin copper wires are substantially parallel to each other.
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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |