Patent US3737232A successfully refreshed from Google Patents.
US3737232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firearm telescopic range finder
Assignee: Individual
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Filing: 1970-10-15
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Granted: 1973-06-05
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Expires: 1990-10-15
Abstract
Abstract A range finder device with a range telescope mounted parallel to and laterally spaced from a conventional gun sight telescope adapted to be mounted on a rifle. The range telescope has an optical and mechanical mechanism for sweeping its line of sight in a generally horizontal plane so that it crosses the line of sight of the gun telescope. A manually rotatable wheel with graduations thereon drives the mechanism for sweeping the line of sight of the range telescope. The graduations are spaced on the wheel in proportion to the included angle formed by the crossing of the lines of sight to provide an indication of the distance between a target at the point of crossing and the rifle on which the range finder device is mounted.
Inventors
- 👤 R Milburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:17
CPC Classifications
F; F41; F41G; F41G1/00; F41G1/38; F41G1/46; F41G1/473; G; G02; G02B; G02B23/00; G02B23/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
219 words
A range finder device for a rifle comprising a gun sight telescope having a barrel and a reticle, a range telescope having a barrel, a reticle and means within said barrel thereof for optically shifting the apparent line of sight of said range telescope in a generally horizontal plane in the field of view thereof by movement of said means for optically shifting relative to said barrel thereof, a rigid support carrying said range telescope with said barrel thereof in fixed relation to said barrel of said gun sight telescope with the longitudinal center lines of said barrels generally parallel to and laterally spaced from each other, manually operable driving means operably connected to and controlling movement of said means for optically shifting of said range telescope relative to said barrel thereof so that an observer with one eye peering Through one of said telescopes and the other eye simultaneously peering through the other of said telescopes can simultaneously aim both of said telescopes on a single target point by manipulation of said driving means, and indicator means responsive to movement of said means of optically shifting of said range telescope to indicate the distance from said telescopes to said target point when both of said telescopes appear to the observer to be simultaneously aimed on said target point.
Claim 2
Dependent Claim
219 words
A range finder device for a rifle comprising a gun sight telescope having a barrel and a reticle, a range telescope having a barrel, a reticle and means within said barrel thereof for optically shifting the apparent line of sight of said range telescope in a generally horizontal plane in the field of view thereof by movement of said means for optically shifting relative to said barrel thereof, a rigid support carrying said range telescope with said barrel thereof in fixed relation to said barrel of said gun sight telescope with the longitudinal center lines of said barrels generally parallel to and laterally spaced from each other, manually operable driving means operably connected to and controlling movement of said means for optically shifting of said range telescope relative to said barrel thereof so that an observer with one eye peering Through one of said telescopes and the other eye simultaneously peering through the other of said telescopes can simultaneously aim both of said telescopes on a single target point by manipulation of said driving means, and indicator means responsive to movement of said means of optically shifting of said range telescope to indicate the distance from said telescopes to said target point when both of said telescopes appear to the observer to be simultaneously aimed on said target point.
Claim 3
Dependent Claim
71 words
The range finder device of claim 1 in which said driving means comprises a shaft carried by said support for rotation about its longitudinal axis and extending generally transversely between said telescopes, said shaft being operably connected to said means for optically shifting, and a wheel fixed to said shaft, said wheel being positioned adjacent said telescopic gun sight to facilitate rotation of said shaft by manual manipulation of said wheel.
Claim 4
Dependent Claim
47 words
The range finder device of claim 2 in which said indicator means comprises a plurality of graduations carried by and spaced about the periphery of said wheel in proportion to the apparent displacement of the line of sight of said range telescope by rotation of said wheel.
Claim 5
Dependent Claim
91 words
The range finder device of claim 1 wherein each of said telescopes has an eyepiece and which also comprises a periscope carried by said support, said periscope receiving light from the eyepiece of said range telescope and having a viewing window laterally spaced from and generally aligned with the eyepiece of said gun sight telescope, whereby the image formed by said range telescope can be observed through said viewing window by one eye of an observer while the other eye can simultaneously observe the image formed by said gun sight telescope.
Claim 6
Dependent Claim
45 words
The range finder device of claim 4 in which the body of said periscope has telescopic sections such that the lateral spacing between said viewing window and said eyepiece of said gun sight telescope can be varied to accommodate different eye spacings of various observers.
Claim 7
Dependent Claim
24 words
The range finder device of claim 1 in which said range telescope comprises a standard commercially available gun sight telescope with a windage adjustment.
Claim 8
Dependent Claim
128 words
The range finder device of claim 1 in which said range telescope has an objective lens adjacent one end and an eyepiece adjacent the other end of said barrel thereof and said means for optically shifting the apparent line of sight of said range telescope comprises a sleeve mounted in said barrel of said range telescope between said objective lens and said eyepiece for generally pivotal movement on its longitudinal axis, at least two longitudinally spaced lenses coaxially mounted in said sleeve, and means connected to said driving means for pivotally moving said sleeve in a generally horizontal plane in response to manipulation of said driving means to shift the apparent line of sight in a generally horizontal plane in the field of view of said range telescope.
Claim 9
Dependent Claim
71 words
The range finder device of claim 7 in which said driving means comprises a shaft carried by said support for rotation on its longitudinal axis and extending generally transversely between said telescopes, said shaft being operably connected to said means for optically shifting, and a wheel fixed to said shaft, said wheel being positioned adjacent said telescopic gun sight to facilitate rotation of said shaft by manual manipulation of said wheel.
Claim 10
Dependent Claim
82 words
The range finder device of claim 7 which also comprises a periscope carried by said support, said periscope receiving light from the eyepiece of said range telescope and having a viewing window laterally spaced from and generally aligned with the eyepiece of said gun sight telescope, whereby the image formed by said range telescope can be observed through said viewing window by one eye of an observer while the other eye can simultaneously observe the image formed by said gun sight telescope.
Claim 11
Dependent Claim
82 words
The range finder device of claim 8 which also comprises a periscope carried by saId support, said periscope receiving light from the eyepiece of said range telescope and having a viewing window laterally spaced from and generally aligned with the eyepiece of said gun sight telescope, whereby the image formed by said range telescope can be observed through said viewing window by one eye of an observer while the other eye can simultaneously observe the image formed by said gun sight telescope.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |