US3788733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser direct fire simulator employing refractive media
Assignee: United States Department of the Navy
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Filing: 1972-11-17
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Granted: 1974-01-29
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Expires: 1992-11-17
Abstract
Abstract Optical beam refracting means adapted to fit within a gun barrel are designed to cooperate with a laser beam generator positioned in the same gun barrel. Micrometer adjusting means are provided whereby optical elements can be adjusted to deflect the laser beam as desired.
Inventors
- 👤 D Breglia
- 👤 W Mohon
- 👤 J Mulson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:51
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/18; G02B7/1805
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
136 words
In a training device adapted to fire a laser beam through a gun barrel, the improvement comprising: a laser beam generating mechanism adapted to fit within the breech end of a gun barrel, said mechanism being adapted for firing a laser beam through said gun barrel in response to actuation of a firing means, a beam refractor having a housing positioned in the muzzle end of said barrel, a first opening in one end of said housing for receiving a beam from said generating mechanism, said beam being parallel to the longitudinal axis of said barrel, a second opening in the other end of said housing for passing said beam out of said refractor, and adjustable control means in said housing for refracting said beam to a predetermined angle to said longitudinal axis of said barrel.
Claim 2
Dependent Claim
136 words
In a training device adapted to fire a laser beam through a gun barrel, the improvement comprising: a laser beam generating mechanism adapted to fit within the breech end of a gun barrel, said mechanism being adapted for firing a laser beam through said gun barrel in response to actuation of a firing means, a beam refractor having a housing positioned in the muzzle end of said barrel, a first opening in one end of said housing for receiving a beam from said generating mechanism, said beam being parallel to the longitudinal axis of said barrel, a second opening in the other end of said housing for passing said beam out of said refractor, and adjustable control means in said housing for refracting said beam to a predetermined angle to said longitudinal axis of said barrel.
Claim 3
Dependent Claim
119 words
The apparatus of claim 1, said adjustable control means comprising a first prism fixed to said housing, said first prism being fixed to said housing adjacent to said first opening and positioned to refract said beam to a first angle from said bore axis, a second prism rotatably attached to said housing, said second prism being rotatable about two mutually perpendicular axes, said second prism being positioned to receive said beam after it passes through said first prism and to pass said beam through said second opening at a second predetermined angle, said adjustable control means comprising micrometer means for rotating said second prism about one or both of said mutually perpendicular axes to adjust said second predetermined angle.
Claim 4
Dependent Claim
30 words
The apparatus of claim 2, said micrometer means comprising micrometer screw means passing through said housing and contacting said second prism to rotate said prism about said mutually perpendicular axes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |