US3581703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warning tape for underground installations
Assignee: ROBERT C HOSACK
•
Filing: 1969-04-28
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Granted: 1971-06-01
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Expires: 1989-04-28
Abstract
Abstract A warning tape, to signal the presence of underground installations, which includes capsules containing a smokereleasing or otherwise attention-compelling chemical substance, released when the tape is raptured.
Inventors
- 👤 Robert C Hosack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:57
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/40; F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; F16L1/11; F41; F41H; F41H9/00; F41H9/06; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/46; F42B12/48; Y; Y10; Y10S; Y10S116/00; Y10S116/14; Y10S206/00; Y10S206/803; Y10S428/00; Y10S428/916
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
A warning device for operation underground, comprising: an elongated extended member consisting essentially of synthetic resinous material, said member comprising a plurality of longitudinally spaced apart weakened tear zones, and said member comprising a plurality of longitudinally spaced apart fully enclosed compartments each of said compartments containing a chemical warning substance which manifests its presence remotely from said compartment when said compartment is ruptured each of said compartments disposed in said member so that one of said weakened tear zones extends across said compartment so that rupture of said member at said tear zone ruptures said compartment.
Claim 2
Dependent Claim
97 words
A warning device for operation underground, comprising: an elongated extended member consisting essentially of synthetic resinous material, said member comprising a plurality of longitudinally spaced apart weakened tear zones, and said member comprising a plurality of longitudinally spaced apart fully enclosed compartments each of said compartments containing a chemical warning substance which manifests its presence remotely from said compartment when said compartment is ruptured each of said compartments disposed in said member so that one of said weakened tear zones extends across said compartment so that rupture of said member at said tear zone ruptures said compartment.
Claim 3
Dependent Claim
16 words
The device of claim 1 in which said chemical warning substance is a smoke releasing material.
Claim 4
Dependent Claim
15 words
The device of claim 1 in which said chemical warning substance is an odiferous substance.
Claim 5
Dependent Claim
15 words
The device of claim 3 in which said chemical warning substance is a volatile mercaptan.
Claim 6
Dependent Claim
14 words
The device of claim 1 in which said chemical warning substance is sound producing.
Claim 7
Dependent Claim
15 words
The device of claim 5 in which said chemical warning substance is a hydrolyzable volatile.
Claim 8
Dependent Claim
15 words
The device of claim 1 in which said weakened tear zones are provided by indentations.
Claim 9
Dependent Claim
15 words
The device of claim 1 in which said weakened tear zones are provided by perforations.
Claim 10
Dependent Claim
15 words
The device of claim 1 in which said weakened tear zones are provided by cuts.
Claim 11
Dependent Claim
33 words
The device of claim 1 in which said elongated member consists essentially of a tape member made as an interrupted laminate of two tape members wherein interruptions in said lamination provide said compartments.
References Cited (Backward Citations)
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Cited
US2512367A
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US2889922A
Cited
US2984346A
Cited
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Cited
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Cited
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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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |