AUTOMATICALLY ADJUSTABLE COMB FOR A FIREARM

• US 20140137456A1
• Filed: 11/21/2012
• Published: 05/22/2014
• Est. Priority Date: 11/21/2012
• Status: Active Grant

• Current Assignee: Grip Plus, Inc.
• Original Assignee: Grip Plus, Inc.
• Inventors: CHIANG, Sai Ming
• Granted Patent: US 8,863,427 B2
• Time in Patent Office: Days
• US Class Current: 42/73
• CPC Class Codes: F41C 23/14 Adjustable stock or stock parts, i.e. adaptable to personal requirements, e.g. length, pitch, cast or drop

Abstract

An automatically adjustable comb for a firearm that extends a predetermined distance from an initial position, flush with the top of a stock, when the firearm moves to a predetermined angular orientation. The automatic adjustable comb may include a detector that detects when the firearm and/or comb has moved to a predetermined angular orientation with respect to a horizontal orientation. The detector may actuate an actuator to extend the comb the predetermined distance from the initial position. The extension of the comb elevates the top of the comb with respect to the top of the stock. The user may be able to vary both the predetermined angular orientation and the predetermined distance. The detection device may detect when the firearm is lowered to a horizontal orientation from an elevated angular orientation causing the actuator to lower the comb so that it is flush with the stock of the firearm.

Claims

1. An accessory for a firearm, the accessory comprising:

a comb configured to be attached to a portion of a firearm, the comb configured to be extended a predetermined distance from an initial position while attached to the portion of the firearm;

the comb configured to automatically extend the predetermined distance from the initial position when the comb moves from a first angular orientation to a second angular orientation.

2. The accessory of claim 1, wherein the first angular orientation is a horizontal angular orientation and the second angular orientation is at least fifteen degrees inclined above the horizontal orientation.

3. The accessory of claim 1 further comprising a detector configured to detect the angular orientation of the comb.

4. The accessory of claim 3, wherein the detector is a tilt switch, a motion sensor, or a computer connected to a control sensor.

5. The accessory of claim 3, wherein the detector is configured to detect when the comb is at the second angular orientation, the second orientation being a predetermined inclination above first angular orientation.

6. The accessory of claim 5, wherein the predetermined inclination is at least fifteen degrees.

7. The accessory of claim 5, wherein the predetermined inclination is adjustable.

8. The accessory of claim 3 further comprising an actuator connected to the comb and being in communication with the detector, wherein upon detection of movement of the comb to the second angular orientation by the detection device the actuator is actuated extending the comb the predetermined distance.

9. The accessory of claim 8, wherein the predetermined distance is 0.375 inches.

10. The accessory of claim 8, wherein the predetermined distance is adjustable.

11. The accessory of claim 8, wherein the actuator comprises one of the following systems:

an earth magnet, an electromagnet, and a power source, wherein detection of the second angular orientation connects the power source to the electromagnet causing a repulsion between the earth magnet and the electromagnet to extend the comb the predetermined distance;

a pneumatic air cylinder and an air supply, wherein detection of the second angular orientation connects the air source to the pneumatic air cylinder to extend the comb the predetermined distance;

an electric motor and a power source, wherein detection of the second angular orientation connects the power source to the electric motor to actuate the motor to extend the comb the predetermined distance;

a piezoelectric transducer and a power source, wherein detection of the second angular orientation connects the powers source to the piezoelectric transducer to extend the comb the predetermined distance; and

a biased spring and a latch, wherein detection of the second angular orientation actuates the latch to release the biased spring to extend the comb the predetermined distance.

12. The accessory of claim 8, wherein the detector is configured to detect that the angular orientation of the comb has moved from the second angular orientation to the first angular orientation and the actuator is configured to retract the comb the predetermined distance based on the detector detecting that the angular orientation of the comb has moved from the second angular orientation to the first angular orientation.

13. A method of automatically adjusting a comb of a firearm, the method comprising:

detecting a movement of the firearm from a predetermined first angular orientation to a predetermined second angular orientation;

extending the comb a predetermined distance from an initial position upon detection of the movement to the second angular orientation.

14. The method of claim 13 further comprising locking the comb at the predetermined distance.

15. The method of claim 13 further comprising detecting a movement of the firearm from the second angular orientation back to the first angular orientation and retracting the comb the predetermined distance to the initial position upon detection of the movement back to the first angular orientation.

16. The method of claim 15 further comprising locking the comb in the initial position.

17. The method of claim 13 further comprising adjusting the predetermined distance.

18. The method of claim 13 further comprising increasing the second predetermined angular orientation with respect to the predetermined first angular orientation.

19. The method of claim 13 further comprising decreasing the second predetermined angular orientation with respect to the predetermined first angular orientation.

20. A system for automatically adjusting a comb of a firearm, the system comprising:

a stock connected to a firearm;

a comb having a top surface, the comb positioned within a recess in a top surface of the stock;

a sensor, the sensor configured to detect an angular orientation of the firearm; and

an actuator, the actuator configured to extend the comb a predetermined distance from an initial position when the sensor detects that the firearm is orientated at a predetermined angular orientation, wherein in the initial position the top surface of the comb is flush with the top surface of the stock.

21. The system of claim 20, wherein the predetermined distance is 0.375 inches.

22. The system of claim 20, wherein the actuator is configured to permit the predetermined distance to be varied.

23. The system of claim 20 further comprising a switch that deactivates the sensor.

24. The system of claim 20 further comprising a switch that locks the actuator.

25. The system of claim 20, wherein the sensor is a tilt switch, a motion sensor, or a computer connected to a control sensor.

26. The system of claim 20, wherein the adjustment device comprises one of the following systems:

an earth magnet, an electromagnet, and a power source, wherein detection of the predetermined angular orientation connects the power source to the electromagnet causing a repulsion between the earth magnet and the electromagnet to extend the comb the predetermined distance;

a pneumatic air cylinder and an air supply, wherein detection of the predetermined angular orientation connects the air source to the pneumatic air cylinder to extend the comb to the predetermined distance;

an electric motor and a power source, wherein detection of the predetermined angular orientation connects the power source to the electric motor to actuate the motor to extend the comb to the predetermined distance;

a piezoelectric transducer and a power source, wherein detection of the predetermined angular orientation connects the powers source to the piezoelectric transducer to extend the comb the predetermined distance; and

a biased spring and a latch, wherein detection of the predetermined angular orientation actuates the latch to release the biased spring to extend the comb the predetermined distance.