US3685392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser ignition system
Assignee: Remington Arms Co LLC
•
Filing: 1970-02-12
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Granted: 1972-08-22
•
Expires: 1990-02-12
Abstract
Abstract A device for firing ammunition has a chamber in which the propellant is placed, the chamber communicating with a barrel or guide through which is projectile or missile is propelled by the propellant when it is ignited, there being a window through which laser radiation can be directed onto the propellant in the chamber, the window pressure sealing the chamber when the chamber is closed.
Inventors
- 👤 William G Platt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:00
CPC Classifications
F; F41; F41A; F41A19/00; F41A19/58; F42; F42B; F42B3/00; F42B3/10; F42B3/113
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
105 words
A firearm having a barrel and openable breech block forming a chamber enclosing means, projectile means insertable into said barrel, a radiation ignitable charge insertable into said chamber enclosing means when said breech block is opened, said charge being adjacent to said projectile, radiation optically transparent pressure sealing means in said chamber enclosing means, said pressure sealing means being pressure sealing and heat and flame resistant, an external laser system remotely located relative to said chamber enclosing means and adjacent to said chamber enclosing means, and means optically directing and focusing said laser energy through said pressure sealing means and to said radiation ignitable charge.
Claim 2
Dependent Claim
105 words
A firearm having a barrel and openable breech block forming a chamber enclosing means, projectile means insertable into said barrel, a radiation ignitable charge insertable into said chamber enclosing means when said breech block is opened, said charge being adjacent to said projectile, radiation optically transparent pressure sealing means in said chamber enclosing means, said pressure sealing means being pressure sealing and heat and flame resistant, an external laser system remotely located relative to said chamber enclosing means and adjacent to said chamber enclosing means, and means optically directing and focusing said laser energy through said pressure sealing means and to said radiation ignitable charge.
Claim 3
Dependent Claim
26 words
A firearm as claimed in claim 1 wherein the charge is a primary explosive and there is a propellant in said chamber ignitable by said charge.
Claim 4
Dependent Claim
18 words
A firearm as claimed in claim 1 wherein the charge is within a casing with the projectile attached.
Claim 5
Dependent Claim
14 words
A firearm as claimed in claim 3 wherein the casing has a window therein.
Claim 6
Dependent Claim
12 words
A firearm as claimed in claim 3 wherein the casing is expendable.
Claim 7
Dependent Claim
17 words
A firearm as claimed in claim 3 wherein the casing has a transparent window and is expendable.
Claim 8
Dependent Claim
24 words
A firearm as claimed in claim 1 wherein the chamber has a breech block and the pressure sealing means is in said breech block.
Claim 9
Dependent Claim
29 words
A firearm as claimed in claim 1 wherein the sealing window is at the side of the longitudinal axis of the firearm and the laser radiation is directed therethrough.
Claim 10
Dependent Claim
15 words
A firearm as claimed in claim 1 wherein the firearm is of the recoilless type.
References Cited (Backward Citations)
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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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |