IP Library › Granted Patent US 12,256,721
Granted Patent B2
US 12,256,721 · App. 18/081,817 · Granted Mar 25, 2025

Fish attraction device including a multi-hammer thumper

Inventor: David J. Standridge (Waxahachie, TX)
A01K85/017
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Quick Facts
Patent No.
US 12,256,721
App. No.
18/081,817
Granted
Mar 25, 2025
Kind
B2
Abstract

Provided is a fish attraction device. The fish attraction device, in at least one aspect, includes a motor, the motor having an output shaft configured to rotate about a rotational axis. The fish attraction device, in accordance with this aspect, may further include first and second cams rotationally coupled to the output shaft about the rotational axis. The fish attraction device, in accordance with this aspect, may further include a first thumper configured to move to create a first thumping pattern as the first cam rotates with the output shaft about the rotational axis, as well as a second thumper configured to move to create a second thumping pattern as the second cam rotates with the output shaft about the rotational axis, the first and second thumping patterns collectively providing a rhythmic thumping pattern designed to attract fish.

Claims (25)

1. A fish attraction device, comprising:

a motor;

an output shaft coupled to the motor, the output shaft configured to rotate about a rotational axis (A r );

first and second cams rotationally coupled to the output shaft about the rotational axis;

a first thumper, the first thumper configured to move from a first downward state to a first upward state and then back down to the first downward state to create a first thumping pattern as the first cam rotates with the output shaft about the rotational axis (A r ); and

a second thumper, the second thumper configured to move from a second downward state to a second upward state and then back down to the second downward state to create a second thumping pattern as the second cam rotates with the output shaft about the rotational axis, the first and second thumping patterns collectively providing a rhythmic thumping pattern designed to attract fish.

2. The fish attraction device as recited in claim 1 , wherein the first thumper includes a first handle and a first hammer and the second thumper includes a second handle and a second hammer.

3. The fish attraction device as recited in claim 2 , wherein the first hammer includes a first metal hammer portion and the second hammer includes a second metal hammer portion.

4. The fish attraction device as recited in claim 3 , wherein the first metal hammer portion and the second metal hammer portion are interchangeable for different weight options.

5. The fish attraction device as recited in claim 3 , wherein the first hammer additionally includes a first tip portion coupled to a first bottom end of the first metal hammer portion and the second hammer additionally includes a second tip portion coupled to a second bottom end of the second metal hammer portion.

6. The fish attraction device as recited in claim 5 , wherein the first tip portion is a first rubber tip portion and the second tip portion is a second rubber tip portion.

7. The fish attraction device as recited in claim 5 , wherein the first tip portion is a first replaceable tip portion and the second tip portion is a second replaceable tip portion.

8. The fish attraction device as recited in claim 2 , wherein the motor is coupled to a base plate, and further wherein the first hammer is configured to strike the base plate to create the first thumping pattern when moving back down to the first downward state, and further wherein the second hammer is configured to strike the base plate to create the second thumping pattern when moving back down to the second downward state.

9. The fish attraction device as recited in claim 8 , wherein the first hammer is coupled proximate a first axial end of the first handle and the second hammer is coupled proximate a second axial end of the second handle, and further wherein a first opposing axial end of the first handle is coupled to the base plate and a second opposing axial end of the second handle is coupled to the base plate.

10. The fish attraction device as recited in claim 9 , further including a first mounting block coupling the first opposing axial end of the first handle to the base plate and a second mounting block coupling the second opposing axial end of the second handle to the base plate.

11. The fish attraction device as recited in claim 10 , wherein the first and second mounting blocks comprise polyethylene plastic.

12. The fish attraction device as recited in claim 2 , wherein the first cam is laterally offset from a first axis (A 1 ) created by the first handle and the second cam is laterally offset from a second axis (A 2 ) created by the second handle.

13. The fish attraction device as recited in claim 12 , wherein a first member extending from the first handle couples the first laterally offset cam and the first thumper and a second member extending from the second handle couples the second laterally offset cam and the second thumper.

14. The fish attraction device as recited in claim 13 , further including a first adjustable wear guide positioned between the first member and the first cam and a second adjustable wear guide positioned between the second member and the second cam.

15. The fish attraction device as recited in claim 14 , wherein the first and second adjustable wear guides are nylon polygon wear guides.

16. The fish attraction device as recited in claim 2 , wherein a rotational location of the first and second cams relative to the output shaft is adjustable to adjust a timing between the first thumping pattern and the second thumping pattern to thereby modify the rhythmic thumping pattern for a particular species of fish.

17. The fish attraction device as recited in claim 16 , wherein the first and second cams are adjustably rotationally offset from 30 degrees to 45 degrees.

18. The fish attraction device as recited in claim 16 , wherein the motor is a variable speed motor, the speed of the motor adjustable to change a rate of reoccurrence of the first thumping pattern and the second thumping pattern for the particular species of fish.

19. The fish attraction device as recited in claim 18 , further including a user adjustable potentiometer coupled to the variable speed motor, the user adjustable potentiometer configured to change the rate of reoccurrence for the particular species of fish.

20. The fish attraction device as recited in claim 19 , wherein the user adjustable potentiometer limits a number of revolutions of the output shaft to 0-50 revolutions per minute.

Continuity (2)
Provisional Application 63290001 · Dec 15, 2021
Related Publication 20230180733A1 · Jun 15, 2023
References Cited (10)
US 859620A · Sandell · 1907 [cited by examiner]
US 2259629A · Fisher · 1941 [cited by examiner]
US 3448649A · Sakujiro · 1969 [cited by examiner]
US 3456543A · Matsuzo · 1969 [cited by examiner]
US 4380132A · Atkinson · 1983 [cited by examiner]
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US 6351908B1 · Thomas · 2002 [cited by examiner]
US 7325357B2 · Wiskur · 2008 [cited by examiner]
US 20030040251A1 · Todokoro · 2003 [cited by examiner]
https://forums.ozarkanglers.com/topic/70687-new-thumper-toy/ (See attached PDF document showing screenshot) (Year: 2020). [cited by examiner]