Patent US4402140A successfully refreshed from Google Patents.
US4402140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescope with compass
Assignee: Individual
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Filing: 1977-12-02
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Granted: 1983-09-06
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Expires: 1997-12-02
Abstract
Abstract Disclosed is a structure of a telescope with compass which indicates the direction in which the telescope is pointed, at the periphery of the field of vision of the telescope. Referring to the compass used for the telescope: a magnet is provided in a compass direction indicating globe on whose outer circumference directions are indicated. This direction indicating globe is supported so as to float in a case containing a lubricating liquid such as oil, etc. This compass is attached to the body of the telescope (specifically, a pair of hand-held binoculars, etc.). Then, the compass direction indication of the direction indicating globe appears as an image at the same focal point as the focal point of the objective lens of the telescope. Referring to other forms of telescopes: the direction indication is especially applicable to a telescope attached to a stand. A gyrocompass fixed to the arms supporting the body tube is connected to a luminous diode or crystalline liquid indication means, etc. attached inside the body tube of the telescope by a conductor. The gyrocompass, because it is fixed to the arms, pivots with the body tube of the telescope. A signal of the gyrocompass which detects the direction in which the telescope is pointed, is indicated at the luminous diode indication means, etc. in the body tube through the conductor. Finally, this direction indication is perceived by the viewer through the ocular at the periphery of the field of vision of the telescope.
Inventors
- 👤 Shoichi Nagae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:22
CPC Classifications
G; G01; G01C; G01C17/00; G01C17/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
222 words
A telescope having a body tube positionable in horizontal and vertical directions for obtaining a magnified image of a distant object comprising a compass having a case mounted to be positioned in directions in which the body tube of said telescope is positioned, a compass direction indicator mounted for universal movement with respect to the case in which the indicator is carried, the indicator being pendulous such that the indicator is rotatable in a horizontal direction in the case, a means for bringing into a field or periphery of a field of vision of the tube of said telescope the image of a sign of direction signal detected by and shown on said compass and directed to the tube irrespective of any angle change of the body tube in a vertical direction, and a means for observing from the same tube an image of a distant object to which said telescope is directed together with a sign of the direction indicated by said compass wherein said means for bringing in the field or periphery of the field of vision of said telescope said sign of direction which is shown on said compass and directed to the tube of said telescope comprises an objective lens set against the compass, and a small second prism pasted on the back surface of said first prism.
Claim 2
Dependent Claim
222 words
A telescope having a body tube positionable in horizontal and vertical directions for obtaining a magnified image of a distant object comprising a compass having a case mounted to be positioned in directions in which the body tube of said telescope is positioned, a compass direction indicator mounted for universal movement with respect to the case in which the indicator is carried, the indicator being pendulous such that the indicator is rotatable in a horizontal direction in the case, a means for bringing into a field or periphery of a field of vision of the tube of said telescope the image of a sign of direction signal detected by and shown on said compass and directed to the tube irrespective of any angle change of the body tube in a vertical direction, and a means for observing from the same tube an image of a distant object to which said telescope is directed together with a sign of the direction indicated by said compass wherein said means for bringing in the field or periphery of the field of vision of said telescope said sign of direction which is shown on said compass and directed to the tube of said telescope comprises an objective lens set against the compass, and a small second prism pasted on the back surface of said first prism.
Claim 3
Dependent Claim
187 words
A telescope having a body tube positionable in horizontal and vertical directions for obtaining a magnified image of a distant object comprising a compass having a case mounted to be positioned in directions in which the body tube of said telescope is positioned, a compass direction indicator mounted for universal movement with respect to the case in which the indicator is carried, the indicator being pendulous such that the indicator is rotatable in a horizontal direction in the case, a means for bringing into a field or periphery of a field of vision of the tube of said telescope the image of a sign of direction signal detected by and shown on said compass and directed to the tube irrespective of any angle change of the body tube in a vertical direction, and a means for observing from the same tube an image of a distant object to which said telescope is directed together with a sign of the direction indicated by said compass wherein the telescope comprises binoculars having parallel tubes and a hinge joining the tubes and wherein the case is mounted adjacent the hinge.
Claim 4
Dependent Claim
187 words
A telescope having a body tube positionable in horizontal and vertical directions for obtaining a magnified image of a distant object comprising a compass having a case mounted to be positioned in directions in which the body tube of said telescope is positioned, a compass direction indicator mounted for universal movement with respect to the case in which the indicator is carried, the indicator being pendulous such that the indicator is rotatable in a horizontal direction in the case, a means for bringing into a field or periphery of a field of vision of the tube of said telescope the image of a sign of direction signal detected by and shown on said compass and directed to the tube irrespective of any angle change of the body tube in a vertical direction, and a means for observing from the same tube an image of a distant object to which said telescope is directed together with a sign of the direction indicated by said compass wherein the telescope comprises binoculars having parallel tubes and a hinge joining the tubes and wherein the case is mounted adjacent the hinge.
Claim 5
Dependent Claim
61 words
A telescope according to claim 2, wherein said compass comprises a compass direction indicating globe on the outer surface of which the cardinal points are shown, a magnet sensing the terrestrial magnetism and disposed in said direction indicating globe, a lubricating liquid for floating said direction indicating globe, and a casing for housing said direction indicating globe and said lubricating liquid.
Claim 6
Dependent Claim
19 words
A telescope according to claim 3, wherein said telescope is sized so that it can be supported by hands.
Claim 7
Dependent Claim
28 words
A telescope according to claim 2 wherein the compass case is hinged and is connected to both tubes, part of the case is made of a transparent material.
References Cited (Backward Citations)
USRE26109E
Cited
DE594238C
Cited
US2792742A
Cited
US2941307A
Cited
US3128562A
Cited
US3448623A
Cited
US3417474A
Cited
GB1293808A
Cited
US4020559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-05 | 1987-03-07 | 1987-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-05 | 1991-03-07 | 1991-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-05 | 1995-03-07 | 1995-09-06 | $7700.00 | Window Closed / Lapsed |