US3833300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three {37 d{38 {11 weapons sight
Assignee: United States Department of the Navy
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Filing: 1973-05-14
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Granted: 1974-09-03
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Expires: 1993-05-14
Abstract
Abstract An improved sighting device for projectile launchers that are mounted on a moving vehicle includes a dual parabolic visor slidably positioned on a helmet. The visor is in the form of two parabolas; and when locked in position, one parabola is in front of each eye of the wearer. The focal point of each parabola is at a prescribed point on the upper leading edge of the helmet opening. Fiber optic bundles, located at each focal point are connected to cathode-ray tubes and project a series of dots on to the visor in front of each eye of the wearer to simulate, in three dimensions, the trajectory of a projectile, if the projectile were fired at any given time.
Inventors
- 👤 W Rymes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:26
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; G; G02; G02B; G02B27/00; G02B27/0093; G02B27/01; G02B27/017; G02B27/0172; G02B30/00; G02B30/20; G02B30/34; G02B30/35; G02B27/0101; G02B2027/0132; G02B27/0149; G02B2027/0154; G02B2027/0156; H01J2229/00; H01J2229/89; H01J2229/8903
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
101 words
A sight comprising: a support; a dual parabolic visor mounted on the support; a pair of fiber optic bundles, each bundle having one end located at a focal point of one of the parabolas defined by the visor; and a pair of cathode-ray tubes connected to the other ends of the fiber optic bundles for projecting on each part of the dual visor a two-dimensional path representing the flight path of a projectile if it were simultaneously launched, so that a viewer looking through the visor would see the two paths stereoscopically as a single path extending outward from the visor.
Claim 2
Dependent Claim
101 words
A sight comprising: a support; a dual parabolic visor mounted on the support; a pair of fiber optic bundles, each bundle having one end located at a focal point of one of the parabolas defined by the visor; and a pair of cathode-ray tubes connected to the other ends of the fiber optic bundles for projecting on each part of the dual visor a two-dimensional path representing the flight path of a projectile if it were simultaneously launched, so that a viewer looking through the visor would see the two paths stereoscopically as a single path extending outward from the visor.
Claim 3
Dependent Claim
20 words
The sight of claim 1 wherein said support is a helmet and the cathode-ray tubes are mounted on the helmet.
Claim 4
Dependent Claim
24 words
The sight of claim 2 wherein said helmet has a visor guard mounted thereon and said visor is slidably connected to said visor guard.
Claim 5
Dependent Claim
17 words
The sight of claim 3 wherein said visor is smoked to partially attenuate the light passing therethrough.
Claim 6
Independent Claim
104 words
A method of aiming a weapon system, employing a dual, parabolic visor, comprising the steps of: projecting on each parabola defined by said visor, from the focal point of each parabola, a two-dimensional path representing the flight path of a projectile if it were instantaneously launched, the two paths when viewed by an observer who is wearing the visor forming a stereoscopic line which appears to extend in front of him; peering through the visor to determine if the stereoscopic line defined by the projected paths intersects a target; and adjusting the aim of the weapon system until the stereoscopic line intersects the target.
Claim 7
Independent Claim
104 words
A method of aiming a weapon system, employing a dual, parabolic visor, comprising the steps of: projecting on each parabola defined by said visor, from the focal point of each parabola, a two-dimensional path representing the flight path of a projectile if it were instantaneously launched, the two paths when viewed by an observer who is wearing the visor forming a stereoscopic line which appears to extend in front of him; peering through the visor to determine if the stereoscopic line defined by the projected paths intersects a target; and adjusting the aim of the weapon system until the stereoscopic line intersects the target.
Claim 8
Dependent Claim
77 words
In combination with a weapons system and connected computer for deriving a representative, two-dimensional path of a projectile fired instantaneously from the weapons system and a pair of cathode-ray tubes for displaying that path, the improvement comprising: a helmet a dual parabolic visor mounted on the helmet; and means for projecting the path displayed on the cathode-ray tubes from the focal point of each parabola defined by said visor on to each parabolic section of said visor.
Claim 9
Dependent Claim
77 words
In combination with a weapons system and connected computer for deriving a representative, two-dimensional path of a projectile fired instantaneously from the weapons system and a pair of cathode-ray tubes for displaying that path, the improvement comprising: a helmet a dual parabolic visor mounted on the helmet; and means for projecting the path displayed on the cathode-ray tubes from the focal point of each parabola defined by said visor on to each parabolic section of said visor.
Claim 10
Dependent Claim
22 words
The combination of claim 6 wherein said helmet includes a visor guard and said visor is slidably mounted on said visor guard.
Claim 11
Dependent Claim
42 words
The combination of claim 6 wherein said projection means comprises a pair of fiber optic bundles, each bundle having one end located at the focal point of one of said parabolas and the other end connected to one of said cathode-ray tubes.
Claim 12
Independent Claim
101 words
A method of aiming a sensor system, employing a dual parabolic visor, comprising the steps of: projecting on each parabola defined by said visor, from the focal point of each parabola, a two-dimensional path representing the optimum acquisition path of the sensor, the two paths when viewed by an observer who is wearing the visor forming a stereoscopic line which appears to extend in front of him; peering through the visor to determine if the stereoscopic line defined by the projected paths intersects a predetermined area; and adjusting the orientation of the sensor system until the stereoscopic path intersects the area.
Claim 13
Independent Claim
101 words
A method of aiming a sensor system, employing a dual parabolic visor, comprising the steps of: projecting on each parabola defined by said visor, from the focal point of each parabola, a two-dimensional path representing the optimum acquisition path of the sensor, the two paths when viewed by an observer who is wearing the visor forming a stereoscopic line which appears to extend in front of him; peering through the visor to determine if the stereoscopic line defined by the projected paths intersects a predetermined area; and adjusting the orientation of the sensor system until the stereoscopic path intersects the area.
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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |