Patent US3174129A successfully refreshed from Google Patents.
US3174129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater sound transmitter
Assignee: Bosch Security Systems Inc
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Filing: 1960-12-12
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Granted: 1965-03-16
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Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 James L Laughlin
- 👤 Delois R Coplen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:33
CPC Classifications
H; H04; H04B; H04B11/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
132 words
AN UNDERWATER COMMUNICATIONS DEVICE COMPRISING, IN COMBINATION: A MASK HAVING AN OPENING THEREIN, MEANS ATTACHED TO THE MASK ADAPTED TO MOUNT THE OPENING OF THE MASK ABOUT THE MOUTH OF A DIVER, AND A MICROPHONE RESPONSIVE TO SOUNDS IN THE AUDIO FREQUENCY RANGE MOUNTED WITHIN THE MASK CONFRONTING THE OPENING; AN ELECTRICAL AUDIO FREQUENCY AMPLIFIER HAVING AN INPUT AND AN OUTPUT, MEANS ATTACHED TO THE AMPLIFIER ADAPTED TO MOUNT THE AMPLIFIER ON SAID DIVER, MEANS FOR ELECTRICALLY CONNECTING THE INPUT OF THE AMPLIFIER TO THE MICROPHONE; AND A LOUDSPEAKER RESPONSIVE TO ELECTRICAL CURRENTS IN THE AUDIO FREQUENCY RANGE, MEANS FOR ELECTRICALLY CONNECTING THE LOUDSPEAKER ADAPTED TO THE OUTPUT OF THE AMPLIFIER, AND MEANS ATTACHED TO THE LOUDSPEAKER ADAPTED TO MOUNT THE SPEAKER ON SAID DIVER FOR COMMUNICATION INTO A BODY OF WATER.
Claim 2
Dependent Claim
132 words
AN UNDERWATER COMMUNICATIONS DEVICE COMPRISING, IN COMBINATION: A MASK HAVING AN OPENING THEREIN, MEANS ATTACHED TO THE MASK ADAPTED TO MOUNT THE OPENING OF THE MASK ABOUT THE MOUTH OF A DIVER, AND A MICROPHONE RESPONSIVE TO SOUNDS IN THE AUDIO FREQUENCY RANGE MOUNTED WITHIN THE MASK CONFRONTING THE OPENING; AN ELECTRICAL AUDIO FREQUENCY AMPLIFIER HAVING AN INPUT AND AN OUTPUT, MEANS ATTACHED TO THE AMPLIFIER ADAPTED TO MOUNT THE AMPLIFIER ON SAID DIVER, MEANS FOR ELECTRICALLY CONNECTING THE INPUT OF THE AMPLIFIER TO THE MICROPHONE; AND A LOUDSPEAKER RESPONSIVE TO ELECTRICAL CURRENTS IN THE AUDIO FREQUENCY RANGE, MEANS FOR ELECTRICALLY CONNECTING THE LOUDSPEAKER ADAPTED TO THE OUTPUT OF THE AMPLIFIER, AND MEANS ATTACHED TO THE LOUDSPEAKER ADAPTED TO MOUNT THE SPEAKER ON SAID DIVER FOR COMMUNICATION INTO A BODY OF WATER.
Claim 3
Dependent Claim
78 words
A LOUDSPEAKER COMPRISING AN ELECTROMECHANICAL TRANSDUCER HAVING A CIRCULAR PLATE, A CIRCULAR WATER IMPERMEABLE DIAPHRAGM MOUNTED AT ITS PERIPHERY ON SAID PLATE, A SPACER DISPOSED BETWEEN THE DIAPHRAGM AND PLATE HAVING AT LEAST ONE CHANNEL EXTENDING THERETHROUGH, A CIRCULAR BLADDER HAVING AN INNER PERIPHERY SEALED TO THE PERIPHERY OF THE DIAPHRAGM AND AN OUTER PERIPHERY SEALED TO THE PERIPHERY OF THE PLATE TO FORM AN AIR CHAMBER IN COMMUNICATION WITH THE DIAPHRAGM THROUGH THE CHANNEL OF THE SPACER.
Claim 4
Dependent Claim
78 words
A LOUDSPEAKER COMPRISING AN ELECTROMECHANICAL TRANSDUCER HAVING A CIRCULAR PLATE, A CIRCULAR WATER IMPERMEABLE DIAPHRAGM MOUNTED AT ITS PERIPHERY ON SAID PLATE, A SPACER DISPOSED BETWEEN THE DIAPHRAGM AND PLATE HAVING AT LEAST ONE CHANNEL EXTENDING THERETHROUGH, A CIRCULAR BLADDER HAVING AN INNER PERIPHERY SEALED TO THE PERIPHERY OF THE DIAPHRAGM AND AN OUTER PERIPHERY SEALED TO THE PERIPHERY OF THE PLATE TO FORM AN AIR CHAMBER IN COMMUNICATION WITH THE DIAPHRAGM THROUGH THE CHANNEL OF THE SPACER.
Claim 5
Dependent Claim
118 words
A MICROPHONE COMPRISING A DIAPHRAGM, AN ELECTROACOUSTICAL TRANSDUCER MECHANICALLY COUPLED TO THE DIAPHRAGM, A WATER IMPERMEABLE FLEXIBLE ENVELOPE DISPOSED ABOUT THE TRANSDUCER AND DIAPHRAGM, SAID ENVELOPE FORMING A CHAMBER IN COMMUNICATION WITH ONE SIDE OF THE DIAPHRAGM, THE OTHER SIDE OF THE ENVELOPE BEING ADAPTED TO COMMUNICATE WITH THE WATER, SAID TRANSDUCER HAVING AN AIR IMPERMEABLE ELECTRICALLY CONDUCTING HOUSING HAVING A RECESS THEREIN, THE DIAPHRAGM BEING ELECTRICALLY INSULATED FROM THE HOUSING AND EXTENDING ACROSS THE RECESS, A MASS OF CARBON GRANULES PACKED WITHIN THE RECESS, SAID HOUSING HAVING A CHANNEL EXTENDING THERETHROUGH FROM THE RECESS, AND AN AIR PERMEABLE PLUG DISPOSED WITHIN THE CHANNEL, SAID PLUG BEING SUFFICIENTLY DENSE TO PREVENT THE GRANULES FROM PASSING THROUGH THE CHANNEL.
Claim 6
Dependent Claim
118 words
A MICROPHONE COMPRISING A DIAPHRAGM, AN ELECTROACOUSTICAL TRANSDUCER MECHANICALLY COUPLED TO THE DIAPHRAGM, A WATER IMPERMEABLE FLEXIBLE ENVELOPE DISPOSED ABOUT THE TRANSDUCER AND DIAPHRAGM, SAID ENVELOPE FORMING A CHAMBER IN COMMUNICATION WITH ONE SIDE OF THE DIAPHRAGM, THE OTHER SIDE OF THE ENVELOPE BEING ADAPTED TO COMMUNICATE WITH THE WATER, SAID TRANSDUCER HAVING AN AIR IMPERMEABLE ELECTRICALLY CONDUCTING HOUSING HAVING A RECESS THEREIN, THE DIAPHRAGM BEING ELECTRICALLY INSULATED FROM THE HOUSING AND EXTENDING ACROSS THE RECESS, A MASS OF CARBON GRANULES PACKED WITHIN THE RECESS, SAID HOUSING HAVING A CHANNEL EXTENDING THERETHROUGH FROM THE RECESS, AND AN AIR PERMEABLE PLUG DISPOSED WITHIN THE CHANNEL, SAID PLUG BEING SUFFICIENTLY DENSE TO PREVENT THE GRANULES FROM PASSING THROUGH THE CHANNEL.
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |