Slide assembly quick release pin with arm extension

• US 10,054,381 B1
• Filed: 11/27/2017
• Issued: 08/21/2018
• Est. Priority Date: 11/28/2016
• Status: Active Grant

• Current Assignee: Heizer Defense LLC
• Original Assignee: Heizer Defense LLC
• Inventors: Heizer, Charles K., Heizer, Thomas C., Robinson, John C., Mahn, Jacob W.
• Primary Examiner(s): Morgan, Derrick R
• Application Number:
  US15/823,100
• Time in Patent Office: 267 Days
• Field of Search: 42108, 42 106
• CPC Class Codes: F16B 19/02 Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
• CPC Class Codes: F16B 21/165 with balls or rollers for connections of rods or tubes engaged telescopically F16B7/1409
• CPC Class Codes: F16B 7/042 with a locking element, e.g. pin, ball or pushbutton, engaging in a hole in the wall of at least one tube
• CPC Class Codes: F41A 11/00 Assembly or disassembly features; Modular concepts; Articulated or collapsible guns F41A3/64, F41A19/10 - F41A19/15, F41A21/48, F41A25/26 take precedence
• CPC Class Codes: F41A 11/02 Modular concepts, e.g. weapon-family concepts
• CPC Class Codes: F41A 19/10 Triggers; Trigger mountings
• CPC Class Codes: F41A 19/26 the percussion or firing pin and the breech-block or bolt forming one piece F41A19/34 takes precedence
• CPC Class Codes: F41A 21/484 using interlocking means, e.g. by sliding pins
• CPC Class Codes: F41A 3/66 Breech housings or frames; Receivers
• CPC Class Codes: F41A 3/86 mounted under or above the barrel
• CPC Class Codes: F41C 23/16 Forestocks; Handgrips; Hand guards pump-action guns F41C7/02

Abstract

A slide assembly quick release pin and arm that secure a recoil assembly within a slide. The pin is inserted through a pair of apertures in a front portion of the slide and through a bore in the nose portion of the recoil assembly aligned between the apertures. As the pin secures the recoil assembly within the slide an arm attached to the end of the pin rests in a recess, flush to the body of the slide in a locked orientation. The pin arm is rotated from a locked orientation within the recess in the assembled configuration to an unlocked orientation out of the recess before the firearm is disassembled. Additionally, the arm acts as a handle for grasping and rotating to provide a mechanical advantage when a user is removing or inserting the pin into the apertures and bore.

Claims

1. A slide assembly for a firearm having a barrel and a frame, comprising:

a casing comprised of a front casing, an internal recess and a rear casing, wherein the front casing extends from the internal recess to a distal end, and wherein the front casing further comprises a pair of apertures spaced above the frame;

a recoil assembly comprising a nose portion situated within the distal end of the front casing, wherein the nose portion of the recoil assembly comprises a bore aligned with the pair of apertures;

a pin fixedly locking the recoil assembly to the casing, wherein the pin is comprised of a pin body and a pin arm, wherein the pin arm is fixedly attached to an end of the pin body, wherein the pin body has a first longitudinal axis and the pin arm has a second longitudinal axis that is askew from the first longitudinal axis, wherein the pin body extends through the apertures and the bore, and wherein the pin arm abuts an exterior of the front casing; and

an external recess on the casing, wherein the external recess is proximal to at least one of the apertures in the front casing, and wherein the pin arm abuts the exterior of the front casing within the external recess.

2. The slide assembly of claim 1, wherein the pin arm is comprised of a locking lip, a flex cut-out, a cavity, and a ball detent, wherein the locking lip extends below a bottom edge of the pin arm proximate to the end of the pin body, wherein the cavity is separated from the end of the pin body by the flex cut-out, and wherein the ball detent is secured within the cavity by at least one of a friction fit and an interference fit.

3. The slide assembly of claim 2, wherein the cavity is further comprised of a cavity diameter, wherein the ball detent is further comprised of a ball diameter, wherein the ball detent diameter is approximately equal to the cavity diameter when the ball detent is secured within the cavity by the friction fit, and wherein the ball detent diameter is greater than the cavity diameter when the ball detent is secured within the cavity by the interference fit.

4. The slide assembly of claim 1, further comprising a locked orientation and an unlocked orientation, wherein the second longitudinal axis of the pin arm is substantially perpendicular to the first longitudinal axis of the pin body, wherein the pin arm abuts an exterior of the front casing within the external recess in the locked orientation, wherein the pin arm is rotated away from the external recess in the unlocked orientation, and wherein the pin arm is separated by a distance from the front casing in the unlocked orientation.

5. The slide assembly of claim 4, wherein the external recess is further comprised of a recessed face, a recessed bottom edge, a recessed front edge, a recessed back edge, and a dimple, wherein the recessed face is further comprised of at least one of the pair of apertures, wherein the aperture is proximate to the front edge, wherein the recessed front edge and the recessed back edge are separated by a recessed width, wherein the recessed width is longer than the pin arm, wherein the dimple is proximate to the recessed back edge, wherein the ball detent is seated within the dimple in the locked orientation, wherein the bottom edge is comprised of a slot, and wherein the locking lip fits within the slot in the locked orientation.

6. The slide assembly of claim 1, wherein the casing is further comprised of a top side and a pair of side walls, wherein the side walls are comprised of a first section between the top side and a first bend and a second section between the first bend and a bottom edge, wherein the pair of apertures is disposed on the second sections and the external recess is disposed on at least one of the second sections, and wherein the recoil assembly is further comprised of a recoil rod connected to and extending away from the nose portion within the internal recess toward the rear casing and a recoil spring situated around the recoil rod.

7. The slide assembly of claim 1, wherein the front casing mates with the barrel and encloses the recoil assembly in an interior space between the front casing and a top side of the barrel, wherein the front casing is slidably connected to the top side of the barrel, and wherein the rear casing is slidably connected to a first side and a second side of a handle portion proximate to a butt end of the frame.

8. The slide assembly of claim 1 further comprising an assembled configuration and a disassembled configuration, wherein the pin body extends through the apertures and the bore and the pin arm is in the locked orientation in the assembled orientation, wherein the recoil assembly is secured within the slide in the assembled orientation, wherein the pin body is removed from the apertures and the bore and the pin body is separated front the casing in the disassembled configuration, and wherein the recoil assembly is free from the slide in the disassembled configuration.

9. A slide assembly for a firearm having a barrel and a frame, comprising:

a casing comprised of a front casing, an internal recess and a rear casing, wherein the front casing extends from the internal recess to a distal end, and wherein the front casing further comprises a pair of apertures spaced above the frame, a slot, and a dimple in a sidewall of the front casing;

a recoil assembly comprising a nose portion situated within the distal end of the front casing, wherein the nose portion of the recoil assembly comprises a bore aligned with the pair of apertures;

a pin fixedly locking the recoil assembly to the casing, wherein the pin is comprised of a pin body and a pin arm, wherein the pin arm is fixedly attached to an end of the pin body, wherein the pin body has a first longitudinal axis and the pin arm has a second longitudinal axis that is askew from the first longitudinal axis, wherein the pin has a locked orientation with the pin arm abutting the sidewall of the front casing and the pin body extends through the apertures and the bore and an unlocked orientation in which the arm is rotated away from the sidewall of the front casing and the pin body slides outwardly from the apertures and the bore, wherein the pin arm is comprised of a locking lip, a detent, and a flexible center section between the locking hp and the detent, wherein the locking lip extends laterally away from the second longitudinal axis of the pin arm and is situated in the slot of the casing when the pin is in the locked orientation, wherein the detent is situated in the dimple of the sidewall in the front casing when the pin is in the locked orientation, and wherein the flexible center section forces the detent toward the dimple when the pin arm is situated in the slot of the casing.

10. The slide assembly of claim 9, wherein the locking lip is located at a proximate end of the pin arm adjacent to the pin body, wherein the flexible center section of the pin arm is a flex cut-out, and wherein the detent is comprised of a ball detent within a cavity at a distal end of the pin arm, and wherein the ball detent is secured within the cavity by at least one of a friction fit and an interference fit.

11. The slide assembly of claim 9, wherein the sidewall of the front casing is further comprised of an external recess with a recessed face, a recessed bottom edge, a recessed front edge, and a recessed back edge, wherein at least one of the pair of apertures is situated in the recessed face proximate to the front edge, and wherein the slot is situated in the bottom edge.

12. The slide assembly of claim 11, wherein the recessed front edge and the recessed back edge are separated by a recessed width, wherein the recessed width is longer than the pin arm, wherein the dimple is proximate to the recessed back edge.

13. The slide assembly of claim 9, wherein the front casing mates with the barrel and encloses the recoil assembly in an interior space between the front casing and a top side of the barrel, wherein the front casing is slidably connected to the top side of the barrel, and wherein the rear casing is slidably connected to a first side and a second side of a handle portion proximate to a butt end of the frame.

14. The slide assembly of claim 9, wherein the recoil assembly is further comprised of a recoil rod connected to and extending away from the nose portion within the internal recess toward the rear casing and a recoil spring situated around the recoil rod.

15. The slide assembly of claim 9, further comprising an assembled configuration and a disassembled configuration, wherein the pin body extends through the apertures and the bore and the pin arm is in the locked orientation in the assembled orientation, wherein the recoil assembly is secured within the slide in the assembled orientation, wherein the pin body is removed from the apertures and the bore and the pin body is separated front the casing in the disassembled configuration, and wherein the recoil assembly is free from the slide in the disassembled configuration.

16. A slide assembly for a firearm having a barrel and a frame, comprising:

a casing comprised of a front casing, an internal recess and a rear casing, wherein the front casing extends from the internal recess to a distal end, and wherein the front casing further comprises a pair of apertures spaced above the frame and a slot in a sidewall of the front casing;

a recoil assembly comprising a nose portion situated within the front casing, wherein the nose portion has a bore aligned with the pair of apertures;

a pin fixedly locking the nose portion to the casing, wherein the pin is comprised of a pin body and a pin arm, wherein the pin arm is fixedly attached to an end of the pin body, wherein the pin body has a first longitudinal axis and the pin arm has a second longitudinal axis that is substantially perpendicular to the first longitudinal axis, wherein the pin has a locked orientation with the pin arm aligned with and abutting the sidewall of the front casing with a portion of the pin arm situated within the slot and the pin body extends through the apertures and the bore, and wherein the pin has an unlocked orientation in which the arm is rotated away from the sidewall of the front casing disengages from the slot, and the pin body slides outwardly from the apertures and the bore.

17. The slide assembly of claim 16, wherein the front casing is further comprised of an external recess with a recessed sidewall and a dimple in the recessed sidewall, wherein the slot is in a bottom edge of the external recess, wherein the pin arm is further comprised of a locking lip, a detent, and a flexible center section between the locking lip and the detent, wherein the locking lip extends laterally away from the second longitudinal axis of the pin arm and is situated in the slot at the bottom edge of the external recess when the pin is in the locked orientation, wherein the detent is situated in the dimple of the recessed sidewall in the front casing when the pin is in the locked orientation, and wherein the flexible center section forces the detent toward the dimple when the pin arm is situated in the slot of the casing.

18. The slide assembly of claim 16, wherein the pin arm is held by a friction fit within the slot in the sidewall of the front casing when the pin is in the locked orientation.

19. The slide assembly of claim 17, wherein a length of the pin arm is greater than a width of the slot, wherein a proximal end of the pin arm is adjacent to the pin body and is not contained within the slot when the pin is in the locked orientation, wherein a distal end of the pin arm extends past a side of the slot when the pin is in the locked orientation.

20. The slide assembly of claim 16, wherein the recoil assembly comprises, a recoil rod connected to and extending away from the nose portion within the internal recess toward the rear casing, and a recoil spring situated around the recoil rod.