US3716923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surveying apparatus
Assignee: Hunt Oil Co
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Filing: 1970-07-16
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Granted: 1973-02-20
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Expires: 1990-07-16
Abstract
Abstract Disclosed is a surveying method and apparatus including a selfpowered mobile target rod carrier and rotatable target rod with calibrated means for measuring horizontal angles. The mobile vehicle also includes a retractable table for placing gravity measuring equipment on the terrain at the data point and determining the elevation of the target above the point at which the data is taken.
Inventors
- 👤 W Bazhaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:33
CPC Classifications
G; G01; G01C; G01C15/00; G01C15/02; G01C15/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
189 words
A mobile target rod comprising: a. A self-powered vehicle; b. an elevated platform mounted on said vehicle; c. a target rod anchored to said platform; d. adjustable means for stabilizing said rod in a vertical position irrespective of the attitude of said platform; e. target means secured to said target rod; f. means for rotating said rod with respect to said platform; g. means for measuring the horizontal angle through which said rod is rotated with respect to said platform; h. said adjustable means for stabilizing said rod comprising: i. a hinged flange mounted on said platform, said flange having an arcuate slot therein and having means for securing the base of said target rod at the base of said flange; ii. a threaded pin secured to said target rod riding in said arcuate slot; iii. a beam having one end secured to said platform at a point removed from said hinged flange and extending in the direction of movement of said hinged flange, said beam having a longitudinal slot therein; and iv. a threaded pin secured to said hinged flange and riding in said slot in said beam.
Claim 2
Dependent Claim
189 words
A mobile target rod comprising: a. A self-powered vehicle; b. an elevated platform mounted on said vehicle; c. a target rod anchored to said platform; d. adjustable means for stabilizing said rod in a vertical position irrespective of the attitude of said platform; e. target means secured to said target rod; f. means for rotating said rod with respect to said platform; g. means for measuring the horizontal angle through which said rod is rotated with respect to said platform; h. said adjustable means for stabilizing said rod comprising: i. a hinged flange mounted on said platform, said flange having an arcuate slot therein and having means for securing the base of said target rod at the base of said flange; ii. a threaded pin secured to said target rod riding in said arcuate slot; iii. a beam having one end secured to said platform at a point removed from said hinged flange and extending in the direction of movement of said hinged flange, said beam having a longitudinal slot therein; and iv. a threaded pin secured to said hinged flange and riding in said slot in said beam.
Claim 3
Dependent Claim
189 words
A mobile target rod comprising: a. A self-powered vehicle; b. an elevated platform mounted on said vehicle; c. a target rod anchored to said platform; d. adjustable means for stabilizing said rod in a vertical position irrespective of the attitude of said platform; e. target means secured to said target rod; f. means for rotating said rod with respect to said platform; g. means for measuring the horizontal angle through which said rod is rotated with respect to said platform; h. said adjustable means for stabilizing said rod comprising: i. a hinged flange mounted on said platform, said flange having an arcuate slot therein and having means for securing the base of said target rod at the base of said flange; ii. a threaded pin secured to said target rod riding in said arcuate slot; iii. a beam having one end secured to said platform at a point removed from said hinged flange and extending in the direction of movement of said hinged flange, said beam having a longitudinal slot therein; and iv. a threaded pin secured to said hinged flange and riding in said slot in said beam.
Claim 4
Dependent Claim
189 words
A mobile target rod comprising: a. A self-powered vehicle; b. an elevated platform mounted on said vehicle; c. a target rod anchored to said platform; d. adjustable means for stabilizing said rod in a vertical position irrespective of the attitude of said platform; e. target means secured to said target rod; f. means for rotating said rod with respect to said platform; g. means for measuring the horizontal angle through which said rod is rotated with respect to said platform; h. said adjustable means for stabilizing said rod comprising: i. a hinged flange mounted on said platform, said flange having an arcuate slot therein and having means for securing the base of said target rod at the base of said flange; ii. a threaded pin secured to said target rod riding in said arcuate slot; iii. a beam having one end secured to said platform at a point removed from said hinged flange and extending in the direction of movement of said hinged flange, said beam having a longitudinal slot therein; and iv. a threaded pin secured to said hinged flange and riding in said slot in said beam.
Claim 5
Dependent Claim
32 words
The mobile target rod defined in claim 1 wherein said means for measuring the angle through which said rod is rotated is a Selsyn motor attached to the base of said rod.
Claim 6
Dependent Claim
44 words
The mobile target rod defined in claim 1 wherein said target rod is comprised of a base section and a target section, the target section being rotatable with respect to said base section and the base section being non-rotatable with respect to said platform.
Claim 7
Dependent Claim
55 words
The mobile target rod defined in claim 3 wherein said means for measuring the angle through which said rod is rotated comprises: i. a calibrated disc surrounding the non-rotatable base section of said rod; and ii. pointer means affixed to said target section to cooperatively indicate the rotation of said target section on said disc.
Claim 8
Dependent Claim
40 words
The mobile target rod defined in claim 1 and further including a retractable table supported within said self-powered vehicle below the base of said target rod and adapted to be freely positioned on the terrain directly below said target rod.
Claim 9
Dependent Claim
27 words
The mobile target rod defined in claim 5 and further including means for measuring the distance from said target to the terrain directly below said target rod.
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |