US3997930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retrieving device
Assignee: Individual
•
Filing: 1968-12-09
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Granted: 1976-12-21
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Expires: 1988-12-09
Abstract
Abstract A Retrieving Device attached to an object which when lost in water will permit the object to be located by releasing an object from the device which will float onwater.
Inventors
- 👤 James C. Reeves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:44
CPC Classifications
B; B63; B63C; B63C7/00; B63C7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A retrieving device for locating a submerged object comprising: enclosure means having an opening in each end; tubular spool means secured within said enclosure means and having openings at each end in alignment with said openings in said enclosure means; stopper means releasably secured in one end of said enclosure means and having a line secured thereto, the opposite end of said line being connected to said spool means; closure means comprising a valve maintained against said aligned openings by a spring exerting a predetermined force, secured within said spool means in such manner that the aligned openings in said spool means and said enclosure means, opposite said stopper means, remain closed until said closure means is forced therefrom; basket means secured within said spool means at a position whereby the operation of said closure means in unaffected; and gas-producing means contained within said basket means, whereby said stopper means is forced from said enclosure means by gas produced by water contacting said gas-producing material after having forced said closure means from said aligned openings and having entered said spool means.
Claim 2
Dependent Claim
181 words
A retrieving device for locating a submerged object comprising: enclosure means having an opening in each end; tubular spool means secured within said enclosure means and having openings at each end in alignment with said openings in said enclosure means; stopper means releasably secured in one end of said enclosure means and having a line secured thereto, the opposite end of said line being connected to said spool means; closure means comprising a valve maintained against said aligned openings by a spring exerting a predetermined force, secured within said spool means in such manner that the aligned openings in said spool means and said enclosure means, opposite said stopper means, remain closed until said closure means is forced therefrom; basket means secured within said spool means at a position whereby the operation of said closure means in unaffected; and gas-producing means contained within said basket means, whereby said stopper means is forced from said enclosure means by gas produced by water contacting said gas-producing material after having forced said closure means from said aligned openings and having entered said spool means.
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) | 1979-12-21 | 1980-06-21 | 1980-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-21 | 1984-06-21 | 1984-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-21 | 1988-06-21 | 1988-12-21 | $7700.00 | Window Closed / Lapsed |