US4069469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for collecting information in water
Assignee: Oki Electric Industry Co Ltd
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Filing: 1976-09-23
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Granted: 1978-01-17
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Expires: 1996-09-23
Abstract
Abstract A submersible which can automatically move along the cable laid under water, has a sensor, and the information collected or gathered by said sensor is forwarded to the control unit on land through said cable. The submersible is for instance connected acoustically to said cable. The cable has a plurality of transducers at every predetermined length for sending the control signal from the cable to the submersible and receiving the information from the submersible.
Inventors
- 👤 Yosimura Masaharu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:15
CPC Classifications
H; H04; H04B; H04B11/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
88 words
A system for collecting information in water comprising a signal cable laid under water connected to a control unit on land, said cable having a plurality of hydrophones at every predetermined length, a submersible which can automatically move under water according to the control of said control unit through said cable, said submersible being acoustically connected to said cable, said submersible having a sensor for collecting the information in water, and said information collected by the sensor being forwarded to said control unit on land through said cable.
Claim 2
Independent Claim
88 words
A system for collecting information in water comprising a signal cable laid under water connected to a control unit on land, said cable having a plurality of hydrophones at every predetermined length, a submersible which can automatically move under water according to the control of said control unit through said cable, said submersible being acoustically connected to said cable, said submersible having a sensor for collecting the information in water, and said information collected by the sensor being forwarded to said control unit on land through said cable.
Claim 3
Dependent Claim
29 words
The invention as defined in claim 1, wherein the length between each hydrophone in said cable is (λ/2), where λ is a wavelength of the sound wave in water.
Claim 4
Dependent Claim
18 words
The invention as defined in claim 1, wherein said submersible has a recorder for recording the collected information.
Claim 5
Dependent Claim
14 words
The invention as defined in claim 1, wherein said cable is filled with castor-oil.
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) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |