Pistol cocking assistive device

• US 8,549,785 B2
• Filed: 04/10/2013
• Issued: 10/08/2013
• Est. Priority Date: 08/04/2011
• Status: Active Grant

• Current Assignee: Lawrence C. Sharp, Robert H. Frantz
• Original Assignee: Lawrence C. Sharp, Robert H. Frantz
• Inventors: Sharp, Lawrence C., Frantz, Robert H.
• Primary Examiner(s): Johnson, Stephen M
• Assistant Examiner(s): COOPER, JOHN
• Application Number:
  US13/860,225
• Publication Number:
  US 20130220105A1
• Time in Patent Office: 181 Days
• Field of Search: 224/192, 224/193, 224/198, 224/199, 224/238, 224/239, 224/243, 224/244, 224/911, 224/912, 211/64, 211/66, 89/14, 42/90, 114/218
• US Class Current: 42/90
• CPC Class Codes: B23P 11/00 Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for connecting sheet metal or metal tubes, rods or profiles B21D39/00; riveting B21J; soldering, unsoldering, welding B23K; hand tools for connecting wire or strip B25B25/00; connecting metal parts by adhesives F16B11/00
• CPC Class Codes: F41C 27/00 Accessories; Details or attachments not otherwise provided for
• CPC Class Codes: F41C 33/0281 with means for assisting in cocking or loading the small arm
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

At least one cam lock and an opposing structure form a compression channel for receiving and engaging a pistol slide. When the pistol is moved in a certain direction through the compression channel, the one or more cam locks and opposing structure engage the pistol'"'"'s slide and translate some of the forward motion force into a compressive force on the sides of the slide. At a point where the compressive force overcomes the force of the main spring of the pistol, the pistol frame driven by the user moves forward relative to the slide, thereby racking the slide of the pistol.

Claims

1. An assistive device for operating a slide portion of a pistol comprising:

a first cam lock for receiving and frictionally engaging a first side of a slide portion of a pistol;

a counter structure juxtaposed to the first cam lock forming a compression channel, wherein the compression channel ranges in a width from a minimum channel width to a maximum channel width during the frictional engagement, and wherein a height of the first cam lock is equal to or less than one half of the minimum channel width; and

a cam lock position biasing device which holds the first cam lock in a first position producing the minimum channel width, wherein a slide portion of a pistol may be received in a first direction within the compression channel to engage a first side of the slide portion by the first cam lock and a second side of the slide portion by the counter structure thereby moving the first cam lock into a position producing a channel width greater than the minimum channel width and equal to or less than the maximum channel width thus engaging the first and second sides of the slide portion, and wherein a compressive force is applied between the first cam lock and the counter structure responsive to passing the slide portion in a direction opposite of the first direction through the compression channel.

2. The assistive device as set forth in claim 1 wherein the minimum channel width is about 0.70 inches.

3. The assistive device as set forth in claim 1 wherein the maximum channel width is about 1.50 inches.

4. The assistive device as set forth in claim 1 in which the first cam lock is a rotating cam lock.

5. The assistive device as set forth in claim 1 in which the first cam lock is a linear cam lock.

6. The assistive device as set forth in claim 1 in which the counter structure comprises at least one element selected from the group consisting of a rotating cam lock, a linear cam lock, and a surface juxtaposed to the first cam lock.

7. The assistive device as set forth in claim 6 in which the counter structure comprises a second cam lock, wherein the minimum channel width is produced with both cam locks in first positions, and wherein a height of the second cam lock is equal to or less than one half of the minimum channel width.

8. The assistive device as set forth in claim 7 in which the second cam lock comprises a rotating cam lock.

9. The assistive device as set forth in claim 7 in which the second cam lock comprises a linear cam lock.

10. The assistive device as set forth in claim 1 in which the counter structure comprises a wall having a surface juxtaposed to the first cam lock.

11. A method for producing an assistive device for operating a slide portion of a pistol, the method comprising:

positioning a first cam lock and a counter structure juxtaposed to the first cam lock thereby forming a compression channel having a width ranging from a minimum channel width to a maximum channel, and wherein a height of the first cam lock is equal to or less than one half of the minimum channel width; and

providing a cam lock position biasing device which holds the first cam lock in a first position producing the minimum channel width, wherein a slide portion of a pistol may be received in a first direction within the compression channel to engage a first side of the slide portion by the first cam lock and a second side of the slide portion by the counter structure thereby moving the first cam lock into a position producing a channel width greater than the minimum channel width and equal to or less than the maximum channel width thus engaging the first and second sides of the slide portion, and wherein a compressive force is applied between the first cam lock and the counter structure responsive to passing the slide portion in a direction opposite of the first direction through the compression channel.

12. The method as set forth in claim 11 wherein the minimum channel width is about 0.70 inches.

13. The method as set forth in claim 11 wherein the maximum channel width is about 1.50 inches.

14. The method as set forth in claim 11 in which the first cam lock comprises a rotating cam lock.

15. The method as set forth in claim 11 in which the first cam lock comprises a linear cam lock.

16. The method as set forth in claim 11 in which the counter structure comprises at least one element selected from the group consisting of a rotating cam lock, a linear cam lock, and a surface juxtaposed to the first cam lock.

17. The method as set forth in claim 16 in which the counter structure comprises a second cam lock, wherein the minimum channel width is produced with both cam locks in first positions, and wherein a height of the second cam lock is equal to or less than one half of the minimum channel width.

18. The method as set forth in claim 17 in which the second cam lock comprises a rotating cam lock.

19. The method as set forth in claim 17 in which the second cam lock comprises a linear cam lock.

20. The method as set forth in claim 11 in which the counter structure comprises a wall having a surface juxtaposed to the first cam lock.