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Class Information
Number: 367/115
Name: Communications, electrical: acoustic wave systems and devices > Echo systems > Distance or direction finding > With indicator > Permanent record
Description: Subject matter in which the display device provides a relatively long-lasting display of a transient indication.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7231331 |
Method and system to detect stress corrosion cracking in pipeline systems |
Jun. 12, 2007 |
| 6847586 |
Portable human height measuring device |
Jan. 25, 2005 |
| 5764466 |
Circuit for short circuit detection through resistive shunt in power circuits using unipolar control voltage |
Jun. 9, 1998 |
| 5256908 |
Facility space data logging device |
Oct. 26, 1993 |
| 4774573 |
Method and apparatus for generating a video display from signals produced by borehole scanning |
Sep. 27, 1988 |
| 4697253 |
Sonar heave compensation system |
Sep. 29, 1987 |
| 4651309 |
Fish sonar |
Mar. 17, 1987 |
| 4612633 |
Sonar apparatus with means to transmit and print on alternate cycles |
Sep. 16, 1986 |
| 4504931 |
Echo-sounding apparatus |
Mar. 12, 1985 |
| 4494224 |
Pipe measuring method and apparatus |
Jan. 15, 1985 |
| 4425635 |
Fish sonar |
Jan. 10, 1984 |
| 4422166 |
Undersea sonar scanner correlated with auxiliary sensor trace |
Dec. 20, 1983 |
| 4369508 |
Sonar having signal amplitude differentiation and noise suppression |
Jan. 18, 1983 |
| RE31026 |
Navigation system for maneuvering a structure about a submerged object |
Sep. 7, 1982 |
| 4335451 |
Signalling method and apparatus for enhancing echo images |
Jun. 15, 1982 |
| 4322827 |
Range expander for sonar system |
Mar. 30, 1982 |
| 4308601 |
Echo ranging apparatus and method |
Dec. 29, 1981 |
| 4254484 |
Device for the determination of a ship in dock at the time of docking |
Mar. 3, 1981 |
| 4241430 |
Method and apparatus for determining the length of tubular members |
Dec. 23, 1980 |
| 4228530 |
Mud level monitor |
Oct. 14, 1980 |
| 4217593 |
Water depth-loran position recorder |
Aug. 12, 1980 |
| 4213198 |
Method for classification of sonar echoes |
Jul. 15, 1980 |
| 4208731 |
Method and device for determining the geometrical outline of the underwater part of icebergs and the draught thereof |
Jun. 17, 1980 |
| 4207620 |
Oceanographic mapping system |
Jun. 10, 1980 |
| 4205395 |
Depth recorder |
May. 27, 1980 |
| 4197591 |
Facsimile recording of sonic values of the ocean bottom |
Apr. 8, 1980 |
| 4186372 |
Brush holder for rectilinear recorder |
Jan. 29, 1980 |
| 4184210 |
Sonic echo scanning and facsimile recording of water submerged surfaces |
Jan. 15, 1980 |
| 4121190 |
Method of and apparatus for sonar detection and the like with plural substantially orthogonal radiation beams |
Oct. 17, 1978 |
| 4118709 |
Digital to graphic character generator |
Oct. 3, 1978 |
| 4105990 |
Process of and apparatus for exploring objects detected by different energy sources |
Aug. 8, 1978 |
| 4104608 |
Heave meter |
Aug. 1, 1978 |
| 4096484 |
Graphic recording system |
Jun. 20, 1978 |
| 4081783 |
Fish finder capable of discriminating sizes of fish |
Mar. 28, 1978 |
| 4080587 |
Echo sounder for detecting schools of fish |
Mar. 21, 1978 |
| 4063212 |
Side scan sonar system |
Dec. 13, 1977 |
| 4060814 |
Recorder with edge-guided belt |
Nov. 29, 1977 |
| 4052692 |
Accentuator circuit for underwater acoustical devices |
Oct. 4, 1977 |
| 4050057 |
Data sample recording system |
Sep. 20, 1977 |
| 4050054 |
Multi-contact brush type fish detecting sonar |
Sep. 20, 1977 |
| 4040056 |
Method for aberration-free optical recording of highly resolved sonar or radar maps |
Aug. 2, 1977 |
| 4034331 |
Fish counter |
Jul. 5, 1977 |
| 4025895 |
Navigation system for maneuvering a structure about a submerged object |
May. 24, 1977 |
| 4005383 |
Catacoustic navigating system |
Jan. 25, 1977 |
| 4001764 |
Acoustic method for detecting leaks from submerged pipelines |
Jan. 4, 1977 |
| 3990082 |
Method and means for recording of information |
Nov. 2, 1976 |
| 3978444 |
Seafloor mapping system |
Aug. 31, 1976 |
| 3975704 |
Method of and apparatus for sonar and related signal texture enhancement of recording media |
Aug. 17, 1976 |
| 3942149 |
Solid state depth sounder |
Mar. 2, 1976 |
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