US5030152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Life saving device
Assignee: RMTJ LP
•
Filing: 1990-02-05
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Granted: 1991-07-09
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Expires: 2010-02-05
Abstract
Abstract A life-saving device for protection against drowning, the device incorporating buoyancy apparatus for holding the potential drowning victim and an attached transmitter above water. A receiver and alarm device converts the signal from the transmitter into audio and visual alarms which summon help.
Inventors
- 👤 Richard L. Carr
- 👤 Jack R. Dennison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:01
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/20; B63B; B63B2201/00; B63B2201/16; B63B2209/00; B63B2209/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
140 words
A dual purpose automatically inflatable life preserver and alarm device comprising: two parts, means for attaching one of said parts to a wearer, said one of said parts comprising a buoyancy and transmission device and the other of said parts comprising a receiver and alarm device. said one of said parts comprising an inflatable envelope of flexible gas tight material, a transmitter attached to said envelope, and a capsule containing a chemical which generates a non-toxic gas when dissolved in water, said capsule being positioned in said one of said parts to inflate said envelope when said gas is generated, port means in said one of said parts for connecting said capsule to water when said port means is immersed in the water, whereby when said envelope is inflated it triggers said transmitter which activates said receiver and alarm device.
Claim 2
Dependent Claim
140 words
A dual purpose automatically inflatable life preserver and alarm device comprising: two parts, means for attaching one of said parts to a wearer, said one of said parts comprising a buoyancy and transmission device and the other of said parts comprising a receiver and alarm device. said one of said parts comprising an inflatable envelope of flexible gas tight material, a transmitter attached to said envelope, and a capsule containing a chemical which generates a non-toxic gas when dissolved in water, said capsule being positioned in said one of said parts to inflate said envelope when said gas is generated, port means in said one of said parts for connecting said capsule to water when said port means is immersed in the water, whereby when said envelope is inflated it triggers said transmitter which activates said receiver and alarm device.
Claim 3
Dependent Claim
21 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 1 wherein: said envelope comprises a balloon.
Claim 4
Dependent Claim
28 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 1 comprising: flapper means for closing said port means when said envelope is inflated.
Claim 5
Dependent Claim
32 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 3 wherein: said gas actuates said flapper means to close said port means upon inflation of said envelope.
Claim 6
Dependent Claim
55 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 3 wherein: said flapper means comprises a flexible material which normally closes said port means, opens said port means when first exposed to water pressure and closes said port means against water pressure when exposed to the pressure of said gas.
Claim 7
Dependent Claim
30 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 5 wherein: said means for attaching comprises a clasp secured to said one of said parts.
Claim 8
Dependent Claim
27 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 5 wherein: said other of said parts comprises a hollow dome shape configuration.
Claim 9
Dependent Claim
61 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 1 in further combination with: a collar mounted around said one of said parts for engagement with a container housing said envelope, said envelope when expanded causes said collar to detach from said container and simultaneously triggering said transmitter, said transmitter actuating said receiver and alarm device.
Claim 10
Dependent Claim
61 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 8 wherein: said transmitter comprises a printed wiring board and a pair of electrical contacts associated therewith and spring means for holding said contacts apart, said collar when detached from said container releasing said spring means to cause it to close said contacts and energize said transmitter.
Claim 11
Dependent Claim
25 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 1 wherein: said receiver and alarm device comprises a warning light.
Claim 12
Dependent Claim
25 words
The dual purpose automatically inflatable life preserver and alarm device set forth in claim 1 wherein: said receiver and alarm device comprises an audio signal.
References Cited (Backward Citations)
US650976A
Cited
US923801A
Cited
US1208232A
Cited
US1458822A
Cited
US3004269A
Cited
US3810146A
Cited
US4040135A
Cited
US4079364A
Cited
US4276669A
Cited
US4714914A
Cited
US4813025A
Cited
US4932910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |