IP Library Granted Patent US 10,760,861
Granted Patent B2
US 10,760,861 · App. 16/252,803 · Granted Sep 1, 2020

Firearm slide with sloped bottom surface

Inventor: Charles David Williams (Geneseo, IL)
Assignee: Springfield, Inc.
F41A3/66F41A9/54F41C3/00F41A9/45
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Quick Facts
Patent No.
US 10,760,861
App. No.
16/252,803
Granted
Sep 1, 2020
Kind
B2
Abstract

Improvements to firearms that load cartridges from a magazine and/or a clip are disclosed. Specifically, improvements to slide assemblies and bolt assemblies to depress a cartridge in a magazine and/or a clip are provided. Such improvements include a sloped bottom-facing surface of the slide assembly and/or bolt assembly. The sloped bottom-facing surface is sloped along the length of the portion that contacts a cartridge in the magazine and/or clip when the slide assembly and/or bolt assembly reciprocates.

Claims (38)

1. An improvement for a slide for a hammer-fired firearm, the slide having a forward-facing breech face, a rearward-facing hammer face, and a downward-facing surface that contacts a cartridge in a magazine received within the firearm when the slide forms part of the firearm, the downward-facing surface having a length extending from the forward-facing breech face to the rearward-facing hammer face and having a portion along which the cartridge in the magazine slides during operation of the firearm, wherein the improvement comprises:

the downward-facing surface is sloped along the entire length of the downward-facing surface, from a lower end adjacent the breech face to an upper end positioned rearward of the breech face;

wherein the downward-facing surface is free of an inside corner along the length; and

wherein the rearward-facing hammer face and the forward-facing breach face define ends of a firing pin bore of the slide.

2. The improvement of claim 1 , wherein:

the downward-facing surface slopes continuously along the length.

3. The improvement of claim 1 , wherein:

the downward-facing surface is sloped gradually along the length.

4. The improvement of claim 1 , wherein:

the downward-facing surface is planar.

5. The improvement of claim 1 , wherein:

the downward-facing surface is free of a protrusion along the length.

6. The improvement of claim 1 , wherein:

the downward-facing surface is transverse relative to a longitudinal axis of the slide.

7. The improvement of claim 6 , wherein:

the longitudinal axis is co-axial with a firing pin bore of the slide.

8. The improvement of claim 1 , wherein:

an angle measured between the downward-facing surface and the breech face is between 80 degrees and 90 degrees.

9. The improvement of claim 8 , wherein:

the angle is between 85 degrees and 89 degrees.

10. The improvement of claim 9 , wherein:

the angle is approximately 88 degrees.

11. A firearm comprising a slide having the improvement described in claim 1 .

12. The improvement of claim 1 , wherein a rearward hammer face of the slide extends above and below an opening for a firing pin bore of the slide.

13. The improvement of claim 1 , wherein the downward-facing surface is bounded on a first lateral side by a first groove and on an opposing, second lateral side by a second groove.

14. The improvement of claim 13 , wherein an opening for a firing pin safety extends through the first groove.

15. An improvement for a slide for a hammer-fired firearm, the slide having a forward-facing breech face and a downward-facing surface that contacts a cartridge in a magazine received within the firearm when the slide forms part of the firearm, the downward-facing surface having a length along which the cartridge in the magazine slides during operation of the firearm, wherein the improvement comprises:

the downward-facing surface is sloped along the length the cartridge in the magazine slides, from a lower end adjacent the breech face to an upper end positioned rearward of the breech face;

wherein the downward-facing surface is bounded on a first lateral side by a first groove and on an opposing, second lateral side by a second groove; and

wherein an opening for an extractor pin extends through the second groove.

16. The improvement of claim 15 , wherein the downward-facing surface extends from the breech face to a rearward-facing hammer face and is sloped along its entirety.

17. The improvement of claim 15 , wherein the downward-facing surface is free of an inside corner along the length.

18. The improvement of claim 15 , wherein:

an angle measured between the downward-facing surface and the breech face is between 80 degrees and 90 degrees.

19. The improvement of claim 18 , wherein:

the angle is between 85 degrees and 89 degrees.

20. The improvement of claim 19 , wherein:

the angle is approximately 88 degrees.

Assignments (5)
SECURITY INTEREST Recorded Dec 15, 2025
From: SPRINGFIELD, INC.
To: FIFTH THIRD BANK, NATIONAL ASSOCIATION
Reel/Frame 073934/0648 →
SECURITY INTEREST Recorded Dec 11, 2025
From: SPRINGFIELD, INC.
To: GLADSTONE CAPITAL CORPORATION
Reel/Frame 073947/0735 →
SECURITY INTEREST Recorded Jan 6, 2022
From: SPRINGFIELD, INC.
To: GLADSTONE CAPITAL CORPORATION
Reel/Frame 058725/0328 →
SECURITY INTEREST Recorded Dec 22, 2020
From: SPRINGFIELD, INC.
To: FIFTH THIRD BANK, NATIONAL ASSOCIATION
Reel/Frame 054720/0557 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2019
From: WILLIAMS, CHARLES DAVID
To: SPRINGFIELD, INC.
Reel/Frame 048081/0451 →
Continuity (2)
Provisional Application 62620056 · Jan 22, 2018
Related Publication 20190226777A1 · Jul 25, 2019
Cited By (20)
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