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Found results for
 patents
1.
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LAST ROUND HOLD OPEN APPARATUS
| Application Number |
US2022011393 |
| Publication Number |
2022/150444 |
| Status |
In Force |
| Filing Date |
2022-01-06 |
| Publication Date |
2022-07-14 |
| Owner |
D & D DESIGN & MACHINE INC. (USA)
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| Inventor |
- Denson, Dennis, Leon, Iii.
- Denson, Dennis, Leon, Iv.
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Abstract
A last round hold open (LRHO) apparatus comprising a first lever having a first end and a second end; a second lever having a first end and a second end, the first end of the second lever in contact with the second end of the first lever; a bolt catch in contact with the second end of the second lever, and with a bolt carrier; and a follower in contact with the first end of the first lever, such that when the follower pushes up on the first end of the first lever, the second end of the first lever pushes down on the first end of the second lever, and the second end of the second lever pushes up on the bolt catch, resulting in activation of the bolt catch and opening the bolt carrier to alert an operator of the firearm that the firearm is out of ammunition.
IPC Classes ?
- F41A 17/36 - Magazine safeties locking the gun in a safety condition when the magazine is empty or removed
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2.
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Last round hold open apparatus
| Application Number |
17142492 |
| Grant Number |
11300375 |
| Status |
In Force |
| Filing Date |
2021-01-06 |
| First Publication Date |
2021-06-03 |
| Grant Date |
2022-04-12 |
| Owner |
D & D Design Machine Inc. (USA)
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| Inventor |
- Denson, Iii, Dennis Leon
- Denson, Iv, Dennis Leon
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Abstract
A last round hold open (LRHO) apparatus comprising a first lever having a first end and a second end; a second lever having a first end and a second end, the first end of the second lever in contact with the second end of the first lever; a bolt catch in contact with the second end of the second lever, and with a bolt carrier; and a follower in contact with the first end of the first lever, such that when the follower pushes up on the first end of the first lever, the second end of the first lever pushes down on the first end of the second lever, and the second end of the second lever pushes up on the bolt catch, resulting in activation of the bolt catch and opening the bolt carrier to alert an operator of the firearm that the firearm is out of ammunition.
IPC Classes ?
- F41A 17/36 - Magazine safeties locking the gun in a safety condition when the magazine is empty or removed
- F41A 9/59 - Ejectors for clips or magazines, e.g. when empty
- F41A 17/40 - Last-round safeties
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3.
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Last round hold open apparatus
| Application Number |
16738651 |
| Grant Number |
10890394 |
| Status |
In Force |
| Filing Date |
2020-01-09 |
| First Publication Date |
2020-09-03 |
| Grant Date |
2021-01-12 |
| Owner |
D & D DESIGN & MACHINE INC. (USA)
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| Inventor |
- Denson, Iii, Dennis Leon
- Denson, Iv, Dennis Leon
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Abstract
A last round hold open (LRHO) apparatus comprising a first lever having a first end and a second end, a mag stop component to which the first lever is pivotally affixed at the second end, a second lever disposed proximate the second end of the first lever, the second lever pivotally affixed to the mag stop, a bolt catch affixed to the mag stop and the second lever, and a magazine release extending from the first end of the first lever.
IPC Classes ?
- F41A 17/36 - Magazine safeties locking the gun in a safety condition when the magazine is empty or removed
- F41A 17/40 - Last-round safeties
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