Patent US4999940A successfully refreshed from Google Patents.
US4999940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weapon safety locking apparatus
Assignee: Individual
•
Filing: 1990-01-22
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Granted: 1991-03-19
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Expires: 2010-01-22
Abstract
Abstract A weapon safety locking apparatus that has a flexible, longitudinally adjustable, locking rod, a chamber insert connected to one end of the rod and a breech block connected to the chamber insert. The apparatus has a locking means to lock the rod within the barrel of a weapon and a plurality of locking knuckles on the rod that the locking means grips when the locking means is in locking engagement with the rod. There is a muzzle cap an a chamber insert that have a tapered end to enable the apparatus to be used on various sizes of firearms. The locking rod, muzzle cap and chamber insert are made of a plastic material. The plastic material of the muzzle cap and the chamber insert has a surface with a low surface hardness to protect the muzzle and the chamber. The plastic material of the muzzle cap is elastically deformable and will return to its originally formed shape. The rod is inserted into the chamber and through the bore of the barrel. The part of the rod extending beyond the barrel receives the locking means. Once the rod is inserted into the bore and the locking means is locked to the rod, the muzzle cap and the chamber insert limit access to the bore of the barrel, help prevent the weapon from being loaded and reduce the chance of unauthorized firing of the weapon.
Inventors
- 👤 Michael T. Madden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:29
CPC Classifications
F; F41; F41A; F41A17/00; F41A17/44
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
182 words
A weapon safety locking apparatus for a firearm having a chamber, a firing mechanism, a bolt, a breech, a barrel, a bore in the barrel and a muzzle on the barrel comprising: a. a flexible longitudinally adjustable locking rod; b. a chamber insert connected to one end of the rod; c. a locking means to lock the rod in the barrel; d. a plurality of locking knuckle means on the rod that the locking means grips when the locking means is in a locking engagement with the rod; e. a muzzle cap with one end intimately engaged with the locking means to limit access to the bore of the barrel from the muzzle of the barrel; f. the muzzle cap being made of a elastically deformable plastic material that returns to a predetermined shape; g. a taper on one end of the chamber insert that intimately engages the chamber to limit access to the chamber; h. a port in the muzzle cap; and i. a taper on the other end on the muzzle cap that intimately engages the muzzle of the barrel.
Claim 2
Dependent Claim
182 words
A weapon safety locking apparatus for a firearm having a chamber, a firing mechanism, a bolt, a breech, a barrel, a bore in the barrel and a muzzle on the barrel comprising: a. a flexible longitudinally adjustable locking rod; b. a chamber insert connected to one end of the rod; c. a locking means to lock the rod in the barrel; d. a plurality of locking knuckle means on the rod that the locking means grips when the locking means is in a locking engagement with the rod; e. a muzzle cap with one end intimately engaged with the locking means to limit access to the bore of the barrel from the muzzle of the barrel; f. the muzzle cap being made of a elastically deformable plastic material that returns to a predetermined shape; g. a taper on one end of the chamber insert that intimately engages the chamber to limit access to the chamber; h. a port in the muzzle cap; and i. a taper on the other end on the muzzle cap that intimately engages the muzzle of the barrel.
Claim 3
Dependent Claim
20 words
A weapon safety locking apparatus as described in claim 1 further comprising a breech block connected to the chamber insert.
Claim 4
Dependent Claim
27 words
A weapon safety locking apparatus as described in claim 1 further comprising the locking rod, the insert and the breech block being made of a plastic material.
Claim 5
Dependent Claim
30 words
A weapon safety locking apparatus as described in claim 1 wherein the breech block further comprises a flat rear surface upon which a leading edge of the bolt may rest.
Claim 6
Dependent Claim
49 words
A weapon safety locking apparatus as described in claim 1 further comprising a surface on the taper of the chamber insert having a low surface hardness to reduce abrasion to the chamber and to reduce impact damage on the firing mechanism should the firing mechanism impact the chamber insert.
Claim 7
Dependent Claim
227 words
A weapon safety locking apparatus for a firearm having a chamber, a firing mechanism, a bolt, a breech, a barrel, a bore in the barrel and a muzzle on the barrel comprising: a. a flexible longitudinally adjustable locking rod; b. a chamber insert connected to one end of the rod; c. a locking means to lock the rod in the barrel; d. a plurality of locking knuckle means on the rod that the locking means grips when the locking means is in a locking engagement with the rod; e. a muzzle cap with one end intimately engaged with the locking means to limit access to the bore of the barrel from the muzzle of the barrel; f. a taper on one end of the chamber insert that intimately engages the chamber to limit access to the chamber; g. a port in the muzzle cap; h. a taper on the other end on the muzzle cap that intimately engages the muzzle of the barrel; i. a surface on the taper of the chamber insert having a low surface hardness to reduce abrasion to the chamber and to reduce impact damage on the firing mechanism should the firing mechanism impact the chamber insert, and j. the plastic material of the muzzle cap being elastically deformable allowing the plastic material of the muzzle cap to return to a predetermined shape.
Claim 8
Dependent Claim
227 words
A weapon safety locking apparatus for a firearm having a chamber, a firing mechanism, a bolt, a breech, a barrel, a bore in the barrel and a muzzle on the barrel comprising: a. a flexible longitudinally adjustable locking rod; b. a chamber insert connected to one end of the rod; c. a locking means to lock the rod in the barrel; d. a plurality of locking knuckle means on the rod that the locking means grips when the locking means is in a locking engagement with the rod; e. a muzzle cap with one end intimately engaged with the locking means to limit access to the bore of the barrel from the muzzle of the barrel; f. a taper on one end of the chamber insert that intimately engages the chamber to limit access to the chamber; g. a port in the muzzle cap; h. a taper on the other end on the muzzle cap that intimately engages the muzzle of the barrel; i. a surface on the taper of the chamber insert having a low surface hardness to reduce abrasion to the chamber and to reduce impact damage on the firing mechanism should the firing mechanism impact the chamber insert, and j. the plastic material of the muzzle cap being elastically deformable allowing the plastic material of the muzzle cap to return to a predetermined shape.
Claim 9
Dependent Claim
274 words
A weapon safety locking apparatus for a firearm having a chamber, a firing mechanism, a bolt, a breech, a barrel, a bore in the barrel and a muzzle on the barrel comprising: a. a flexible longitudinally adjustable locking rod; b. a chamber insert connected to one end of the rod; c. a breech block connected to the chamber insert; d. a flat rear surface on the breech block upon which a leading edge of the bolt may rest; e. the rod, the insert and the breech block being made of a plastic material; f. a locking means to lock the rod in the barrel; g. a plurality of locking knuckle means on the rod that the locking means grips when the locking means is in a locking engagement with the rod; h. a muzzle cap with one end intimately engaged with the locking means to limit access to the bore of the barrel from the muzzle of the barrel; i. a taper on one end of the chamber insert that intimately engages the chamber to limit access to the chamber; j. a port in the muzzle cap; k. a taper on the other end on the muzzle cap that intimately engages the muzzle of the barrel; l. a surface on the taper of the chamber insert having a low surface hardness to reduce abrasion to the chamber and to reduce impact damage on the firing mechanism should the firing mechanism impact the chamber insert, and m. the plastic material of the muzzle cap being elastically deformable and having a memory allowing the plastic material of the muzzle cap to return to a predetermined shape.
Claim 10
Dependent Claim
274 words
A weapon safety locking apparatus for a firearm having a chamber, a firing mechanism, a bolt, a breech, a barrel, a bore in the barrel and a muzzle on the barrel comprising: a. a flexible longitudinally adjustable locking rod; b. a chamber insert connected to one end of the rod; c. a breech block connected to the chamber insert; d. a flat rear surface on the breech block upon which a leading edge of the bolt may rest; e. the rod, the insert and the breech block being made of a plastic material; f. a locking means to lock the rod in the barrel; g. a plurality of locking knuckle means on the rod that the locking means grips when the locking means is in a locking engagement with the rod; h. a muzzle cap with one end intimately engaged with the locking means to limit access to the bore of the barrel from the muzzle of the barrel; i. a taper on one end of the chamber insert that intimately engages the chamber to limit access to the chamber; j. a port in the muzzle cap; k. a taper on the other end on the muzzle cap that intimately engages the muzzle of the barrel; l. a surface on the taper of the chamber insert having a low surface hardness to reduce abrasion to the chamber and to reduce impact damage on the firing mechanism should the firing mechanism impact the chamber insert, and m. the plastic material of the muzzle cap being elastically deformable and having a memory allowing the plastic material of the muzzle cap to return to a predetermined shape.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-18 | 1994-09-17 | 1995-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-18 | 1998-09-17 | 1999-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-18 | 2002-09-17 | 2003-03-19 | $7700.00 | Window Closed / Lapsed |