US3914873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated gun sights
Assignee: ECKERT RICHARD L 667 N ESCONDIDO BLVD ESCONDIDO
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Filing: 1973-02-27
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Granted: 1975-10-28
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Expires: 1993-02-27
Abstract
Abstract Battery powered illuminated gun sights for facilitating accurate aiming of a gun in the dark. The sight illumination is furnished by miniature shock-resistant light emitters, such as light emitting diodes, which are energized from batteries contained in the gun by operation of a switch on the gun. The sights are preferably illuminated with red light to avoid degrading of the user''s night vision and in such a way that the illuminated portions of the sights are not visible from the front and sides of the gun and hence do not reveal the user''s location. The front and rear sights may be distinguished by illumination of different intensity or color to facilitate proper alignment of the sights when aiming.
Inventors
- 👤 Jr John B Elliott
- 👤 Charles R Cresap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:13
CPC Classifications
F; F41; F41G; F41G1/00; F41G1/32; F41G1/34; F41G1/345
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
In a gun having a barrel, the improvements comprising: a rear illuminated sight along said barrel comprising an upstanding sight member at the breech end of said barrel having a sighting aperture and a reflecting surface about said aperture facing rearwardly of said barrel, a light emitter recessed into said gun rearwardly of said sight member so as to be located below the level of said sight member and facing said sight member for illuminating said sight surface, whereby the illuminated sight member is visible in the dark from the breech end of the gun by light reflection from said sight surface, an energizing circuit connected to said light emitter including switch means on said gun to be operated by the gun user for switching said light emitter on and off, and said light emitter comprising a light emitting diode which produces light by electro-luminescence.
Claim 2
Dependent Claim
145 words
In a gun having a barrel, the improvements comprising: a rear illuminated sight along said barrel comprising an upstanding sight member at the breech end of said barrel having a sighting aperture and a reflecting surface about said aperture facing rearwardly of said barrel, a light emitter recessed into said gun rearwardly of said sight member so as to be located below the level of said sight member and facing said sight member for illuminating said sight surface, whereby the illuminated sight member is visible in the dark from the breech end of the gun by light reflection from said sight surface, an energizing circuit connected to said light emitter including switch means on said gun to be operated by the gun user for switching said light emitter on and off, and said light emitter comprising a light emitting diode which produces light by electro-luminescence.
Claim 3
Dependent Claim
146 words
In a gun having a barrel, the improvements comprising: a front illuminated sight along said barrel comprising a relatively thin upstanding sight rib at the muzzle end of said barrel having a recess entering an edge of said rib and a reflecting surface within the front end of said recess and facing rearwardly along said barrel, a light emitter within said recess below the level of said reflecting surface for illuminating said surface, whereby the illuminated front sight is visible in the dark from the breech end of the gun by light reflection from said surface, a transparent filler material filling said recess, an energizing circuit connected to said light emitter including switch means on said gun to be operated by the gun user for switching said light emitter on and off, and said light emitter comprising a light emitting diode which produces light by electro-luminescence.
Claim 4
Dependent Claim
146 words
In a gun having a barrel, the improvements comprising: a front illuminated sight along said barrel comprising a relatively thin upstanding sight rib at the muzzle end of said barrel having a recess entering an edge of said rib and a reflecting surface within the front end of said recess and facing rearwardly along said barrel, a light emitter within said recess below the level of said reflecting surface for illuminating said surface, whereby the illuminated front sight is visible in the dark from the breech end of the gun by light reflection from said surface, a transparent filler material filling said recess, an energizing circuit connected to said light emitter including switch means on said gun to be operated by the gun user for switching said light emitter on and off, and said light emitter comprising a light emitting diode which produces light by electro-luminescence.
Claim 5
Dependent Claim
135 words
In a gun having a barrel, the improvements comprising: two illuminated sights spaced along said barrel each having a reflecting surface facing rearwardly along the barrel and a light emitter for illuminating said reflecting surface, the light emitter for each sight being recessed into said gun rearwardly of the respective sight reflecting surface so as to be located below the level of the respective surface and facing the respective surface, whereby the illuminated sights are visible in the dark from the breech end of the gun by light reflection from said sight surfaces, an energizing circuit connected to said light emitters including switch means on said gun to be operated by the gun user for switching said light emitters on and off, and said light emitters comprising light emitting diodes which produce light by electro-luminescence.
Claim 6
Dependent Claim
135 words
In a gun having a barrel, the improvements comprising: two illuminated sights spaced along said barrel each having a reflecting surface facing rearwardly along the barrel and a light emitter for illuminating said reflecting surface, the light emitter for each sight being recessed into said gun rearwardly of the respective sight reflecting surface so as to be located below the level of the respective surface and facing the respective surface, whereby the illuminated sights are visible in the dark from the breech end of the gun by light reflection from said sight surfaces, an energizing circuit connected to said light emitters including switch means on said gun to be operated by the gun user for switching said light emitters on and off, and said light emitters comprising light emitting diodes which produce light by electro-luminescence.
Claim 7
Dependent Claim
208 words
In a gun having a barrel, the improvements comprising: two illuminated sights spaced along said barrel each including a light emitter for illuminating the respective sight, one sight being a front sight comprising a relatively thin upstanding longitudinal sight rib at the muzzle end of said barrel having a recess entering an edge of the rib and containing the front sight light emitter in such a way that light from said front emitter is visible at the breech end of said barrel, the other sight being a rear sight comprising an upstanding sight member at the breech end of said barrel having a sighting aperture and a reflecting surface about said aperture facing rearwardly of said barrel, the rear sight light emitter being recessed into the gun rearwardly of said sight member so as to be located below the level of the sight member and facing said sight surface for illuminating said surface, whereby the illuminated sight member is visible by light reflection from the surface, an energizing circuit connected to said light emitters including switch means on said gun to be operated by the gun user for switching said light emitters on and off, and said light emitters comprising light emitting diodes which produce light by electro-luminescence.
Claim 8
Dependent Claim
208 words
In a gun having a barrel, the improvements comprising: two illuminated sights spaced along said barrel each including a light emitter for illuminating the respective sight, one sight being a front sight comprising a relatively thin upstanding longitudinal sight rib at the muzzle end of said barrel having a recess entering an edge of the rib and containing the front sight light emitter in such a way that light from said front emitter is visible at the breech end of said barrel, the other sight being a rear sight comprising an upstanding sight member at the breech end of said barrel having a sighting aperture and a reflecting surface about said aperture facing rearwardly of said barrel, the rear sight light emitter being recessed into the gun rearwardly of said sight member so as to be located below the level of the sight member and facing said sight surface for illuminating said surface, whereby the illuminated sight member is visible by light reflection from the surface, an energizing circuit connected to said light emitters including switch means on said gun to be operated by the gun user for switching said light emitters on and off, and said light emitters comprising light emitting diodes which produce light by electro-luminescence.
Claim 9
Dependent Claim
59 words
The improvements according to claim 4 wherein: said sight rib has a reflecting surface at the front end of said sight rib recess and facing rearwardly along said barrel, and said front light emitter is located below the level of and illuminates said latter surface, whereby the illuminated front sight is viewed by light reflection from the latter surface.
Claim 10
Dependent Claim
34 words
The improvements according to claim 5 wherein: said sight rib reflecting surface is located within the front end of said rib recess and, said sight rib recess is filled with a transparent filler material.
Claim 11
Dependent Claim
34 words
The improvements according to claim 4 wherein: said sight rib edge faces rearwardly along said barrel, and said front light emitter faces rearwardly so as to be visible from the rear of said gun.
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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |