Fish sonar body

• US 4,805,337 A
• Filed: 10/22/1987
• Issued: 02/21/1989
• Est. Priority Date: 05/13/1987
• Status: Expired due to Fees

• Current Assignee: Honda Electronics Co., Ltd.
• Original Assignee: Honda Electronics Co., Ltd.
• Inventors: Kurata, Hisao
• Primary Examiner(s): Jordan, M.
• Application Number:
  US07/111,216
• Time in Patent Office: 488 Days
• Field of Search: 43/17.1, 43/17.5, 43/26.1
• US Class Current: 43/17.5
• CPC Class Codes: A01K 79/00 Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery
• CPC Class Codes: G01S 15/96 for locating fish

Abstract

A fish sonar buoy is stayed on the surface of the water apart from a boat or shore, ultrasonic signals is emitted from a transmitter-receiver in the water, ultrasonic echo signals in the water are converted to electric signals in the transmitter-receiver, the electric signals are taken in a control circuit during a desired time after ultrasonic signals are emitted from the transmitter-receiver, and thus, a school of fish in the desired position below the water level is detected by a signal information device.

Claims

1. A fish sonar buoy having a transmitting circuit for transmitting pulse signals, a transmitter-receiver for transmitting ultrasonic signals according to the pulse signals in water, the transmitter-receiver being mounted in a bottom portion of said buoy, a receiving circuit having a control circuit for receiving echo signals converted by the transmitter-receiver during a desired time after the ultrasonic signals are emitted and for generating electric signals, and a signal information device for informing the existence of a school of fish in a desired deep portion of the water according to the desired time by a change of a color or an emission of a light or sound, wherein the signal information device includes an information body driven by a solenoid.

2. A fish sonar buoy according to claim 1 wherein the information body of the signal information device has a luminous body.

3. A fish sonar buoy according to claim 2 wherein the luminous body is a lamp.

4. A fish sonar buoy according to claim 2 wherein the luminous body is a light emitting diode.

5. A fish sonar buoy according to claim 1 wherein the information body of the signal information device has a sound generating device.

6. A fish sonar buoy according to claim 5 wherein the sound generating device is a speaker.

7. A fish sonar buoy according to claim 5 wherein the sound generating device is a buzzer.

8. A fish sonar buoy having a transmitting circuit for transmitting pulse signals, a transmitter-receiver for transmitting ultrasonic signals according to the pulse signals in the water, the transmitter-receiver being mounted in a bottom portion of said buoy, a receiving circuit having a control circuit for receiving echo signals converted by the transmitter-receiver during a desired time after the ultrasonic signals are emitted and for generating electric signals, and a signal information device for informing the existence of a school of fish in a desired deep portion of the water according to the desired time by a change of a color or an emission of a light or sound, wherein the the signal information device includes an information body driven by a motor.

9. A fish sonar buoy according to claim 8, wherein the information body of the signal information device has a luminous body.

10. A fish sonar buoy according to claim 9, wherein the luminous body is a lamp.

11. A fish sonar buoy according to claim 9, wherein the luminous body is a light emitting diode.

12. A fish sonar buoy according to claim 8, wherein the information body of the signal information device has a sound generating device.

13. A fish sonar buoy according to claim 12, wherein the sound generating device is a speaker.

14. A fish sonar buoy according to claim 12, wherein the sound generating device is a buzzer.

15. A fish sonar buoy having a transmitting circuit for transmitting pulse signals, a transmitter-receiver for transmitting ultrasonic signals according to the pulse signals in the water, the transmitter-receiver being mounted in a bottom portion of said buoy, a receiving circuit having a control circuit for receiving echo signals converted by the transmitter-receiver during a desired time after the ultrasonic signals are emitted and for generating electric signals including a combination of long pulse signals and short pulse signals, and a signal information device for informing the existence of a school of fish in a desired deep portion according to the desired time by a change of a color or an emission of a light or sound.