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Patent US3964427A successfully refreshed from Google Patents.
US3964427A
Expired / Lapsed
US
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Survival apparatus
Assignee: Lawrence Peska Associates Inc
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Filing: 1974-11-18
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Granted: 1976-06-22
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Expires: 1994-11-18
Abstract
Abstract Apparatus for marking a location which includes a balloon and a bottle of pressurized helium which is selectively connected to the balloon which is in turn secured by a cord which is fed through an indicator as it is released to show the amount of cord that has been released and thereby the height of the balloon.
Inventors
- 👤 Norma M. Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:07
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/02; H04B1/04; G; G08; G08B; G08B5/00; G08B5/002; Y; Y10; Y10S; Y10S116/00; Y10S116/09
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
Apparatus for marking a physical location which comprises: a case; an assembly within said case comprising a balloon; a bottle containing pressurized helium; valve means coupled to said bottle and configured for accepting a mouth of said balloon for enabling selective inflation of said balloon; a cord secured at one end to said balloon; means in said case for storing said cord; cord measuring means mounted in said case and engaging said cord; said measuring means including a digital indication of the linear quantity of cord removed from said storing means; said case having a transparent area in register with said measuring means for enabling viewing said digital indication through said case.
Claim 2
Dependent Claim
112 words
Apparatus for marking a physical location which comprises: a case; an assembly within said case comprising a balloon; a bottle containing pressurized helium; valve means coupled to said bottle and configured for accepting a mouth of said balloon for enabling selective inflation of said balloon; a cord secured at one end to said balloon; means in said case for storing said cord; cord measuring means mounted in said case and engaging said cord; said measuring means including a digital indication of the linear quantity of cord removed from said storing means; said case having a transparent area in register with said measuring means for enabling viewing said digital indication through said case.
Claim 3
Dependent Claim
34 words
The apparatus of claim 1 wherein said apparatus includes first and second of said assemblies, the transparent area of said case being of a size for viewing measuring means of each of said assemblies.
Claim 4
Dependent Claim
30 words
The apparatus of claim 2 wherein said storing means comprises a reel mounted for rotation within said case and wherein said case is configured for storage of other survival gear.
References Cited (Backward Citations)
US3002490A
Cited
US3136066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |