Patent US4777752A successfully refreshed from Google Patents.
US4777752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blank magazine
Assignee: Individual
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Filing: 1987-06-09
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Granted: 1988-10-18
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Expires: 2007-06-09
Abstract
Abstract A blank magazine for feeding blank rounds to a bolt-equipped firearm. The magazine has a back wall and a front wall. The distance between the inner surface of the back wall and the inner surface of the front wall is less than the length of a standard round but is greater than the length of a blank round. The magazine also has structure which prevents any standard round from being fed by the bolt of the firearm.
Inventors
- 👤 William J. Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:23
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/61; F41A9/64; F41A9/65; F41A33/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
148 words
A blank magazine for feeding blank rounds to the chamber of a bolt-equipped firearm; said magazine comprising: A. a back wall having an inner surface; and B. a front wall having an inner surface and a top; wherein the distance between the inner surface of the back wall and the inner surface of the front wall is less than the length of a standard round but is greater than the length of a blank round; and C. means for preventing any standard round from being fed by the bolt to the chamber of the firearm; and D. wherein said means constitutes means for holding the base of any standard round below the bolt such that an advancing bolt does not feed the standard round to the chamber; and E. wherein the blank round has an overall length that is less than the overall length of a standard round.
Claim 2
Dependent Claim
148 words
A blank magazine for feeding blank rounds to the chamber of a bolt-equipped firearm; said magazine comprising: A. a back wall having an inner surface; and B. a front wall having an inner surface and a top; wherein the distance between the inner surface of the back wall and the inner surface of the front wall is less than the length of a standard round but is greater than the length of a blank round; and C. means for preventing any standard round from being fed by the bolt to the chamber of the firearm; and D. wherein said means constitutes means for holding the base of any standard round below the bolt such that an advancing bolt does not feed the standard round to the chamber; and E. wherein the blank round has an overall length that is less than the overall length of a standard round.
Claim 3
Dependent Claim
24 words
The magazine of claim 1, wherein the inner surface of the back wall is substantially parallel to the inner surface of the front wall.
Claim 4
Dependent Claim
15 words
The magazine of claim 1, wherein the blank rounds are shorter than the standard rounds.
Claim 5
Dependent Claim
10 words
The magazine of claim 1 constructed substantially completely of thermoplastic.
Claim 6
Dependent Claim
10 words
The magazine of claim 4, wherein the thermoplastic is nylon.
Claim 7
Dependent Claim
10 words
The magazine of claim 4, wherein the thermoplastic is polypropylene.
Claim 8
Dependent Claim
304 words
A magazine for holding a plurality of blank cartridges and for feeding these blank cartridges sequentially to a firearm having a bolt which cooperates with a chamber; wherein said magazine will receive only one standard round having a projectile; and will not permit that standard round to be fed to the chamber of the firearm; said magazine comprising: A. a front wall having a top and an inner surface; and B. a back wall having an inner surface; and C. a left side wall joining the left side of the back wall to the left side of the front wall; the top of said left side wall terminating in a left cartridge-retaining lip; and , D. a right side wall joining the right side of the back wall to the right side of the front wall; the top of said right side wall terminating in a right cartridge-retaining lip; and wherein the distance between the inner surface of the front wall and the inner surface of the back wall is less than the length of a standard round but is greater than the length of a blank round; thereby preventing the magazine from holding more than one standard round; and wherein the top of the front wall supports the projectile of any standard round and wherein one cartridge-retaining lip contacts the standard round to hold the base of the standard round below the bottom of the bolt, thereby preventing the bolt from feeding the standard round to the chamber of the firearm; and wherein said magazine further comprises means for holding the base of any standard round below the bolt such that an advancing bolt does not feed the standard round to the chamber; and wherein the blank round has an overall length that is less than the overall length of a standard round.
Claim 9
Dependent Claim
304 words
A magazine for holding a plurality of blank cartridges and for feeding these blank cartridges sequentially to a firearm having a bolt which cooperates with a chamber; wherein said magazine will receive only one standard round having a projectile; and will not permit that standard round to be fed to the chamber of the firearm; said magazine comprising: A. a front wall having a top and an inner surface; and B. a back wall having an inner surface; and C. a left side wall joining the left side of the back wall to the left side of the front wall; the top of said left side wall terminating in a left cartridge-retaining lip; and , D. a right side wall joining the right side of the back wall to the right side of the front wall; the top of said right side wall terminating in a right cartridge-retaining lip; and wherein the distance between the inner surface of the front wall and the inner surface of the back wall is less than the length of a standard round but is greater than the length of a blank round; thereby preventing the magazine from holding more than one standard round; and wherein the top of the front wall supports the projectile of any standard round and wherein one cartridge-retaining lip contacts the standard round to hold the base of the standard round below the bottom of the bolt, thereby preventing the bolt from feeding the standard round to the chamber of the firearm; and wherein said magazine further comprises means for holding the base of any standard round below the bolt such that an advancing bolt does not feed the standard round to the chamber; and wherein the blank round has an overall length that is less than the overall length of a standard round.
Claim 10
Dependent Claim
245 words
A magazine for holding a plurality of blank rounds devoid of projectiles and for feeding these blank rounds sequentially to a firearm having a bolt which cooperates with a chamber; wherein said magazine will receive only one projectile-containing round and will not permit that projectile-containing round to be fed to the chamber of the firearm; said magazine comprising: A. a front wall having a top and an integral inner surface; and B. a back wall having an inner surface; and C. a left side wall fixedly joining the left side of the back wall to the left side of the front wall; the top of said left side wall terminating in a left cartridge-retaining lip; and D. a right side wall fixedly joining the right side of the back wall to the right side of the front wall; the top of said right side wall terminating in a right catridge-retaining lip; and wherein the distance between the inner surface of the front wall and the inner surface of the back wall is less than the length of a standard round but is greater than the length of a blank round; thereby constituting means for preventing the magazine from holding more than one projectile-containing round and wherein one cartridge-retaining lip contacts the projectile-containing round to hold the base of the projectile-containing round below the bottom of the bolt, thereby constituting means for preventing the bolt from feeding the projectile-containing round to the chamber of the firearm.
Claim 11
Dependent Claim
245 words
A magazine for holding a plurality of blank rounds devoid of projectiles and for feeding these blank rounds sequentially to a firearm having a bolt which cooperates with a chamber; wherein said magazine will receive only one projectile-containing round and will not permit that projectile-containing round to be fed to the chamber of the firearm; said magazine comprising: A. a front wall having a top and an integral inner surface; and B. a back wall having an inner surface; and C. a left side wall fixedly joining the left side of the back wall to the left side of the front wall; the top of said left side wall terminating in a left cartridge-retaining lip; and D. a right side wall fixedly joining the right side of the back wall to the right side of the front wall; the top of said right side wall terminating in a right catridge-retaining lip; and wherein the distance between the inner surface of the front wall and the inner surface of the back wall is less than the length of a standard round but is greater than the length of a blank round; thereby constituting means for preventing the magazine from holding more than one projectile-containing round and wherein one cartridge-retaining lip contacts the projectile-containing round to hold the base of the projectile-containing round below the bottom of the bolt, thereby constituting means for preventing the bolt from feeding the projectile-containing round to the chamber of the firearm.
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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) | 1991-10-18 | 1992-04-18 | 1992-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-18 | 1996-04-18 | 1996-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-18 | 2000-04-18 | 2000-10-18 | $7700.00 | Window Closed / Lapsed |