US3713544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for controlling a boom
Assignee: ARANEIDA Inc
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Filing: 1971-10-21
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Granted: 1973-01-30
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Expires: 1991-10-21
Abstract
Abstract A system for controlling a boom has an undercarriage adapted for placement on the ground and a superstructure mounted on the undercarriage for rotation about a vertical axis. The undercarriage includes means for adjusting the elevation of and for leveling the superstructure, means for controlling the azimuth of the superstructure, and means for resisting torsion induced in the superstructure. The superstructure includes corner outrigger jacks for support in addition to that provided by the undercarriage, and it has a frame to which are mounted elongated parallel rails. A movable carriage is mounted on the rails by means of preloaded pressure wheels to prevent deflection of the carriage from the horizontal and to eliminate relative rotational motion between the carriage and rails. A pair of side counterweights are also mounted on the superstructure on rails to either side of rails supporting the carriage. The counterweights are connected to the carriage by flexible links to move in an opposite direction than the carriage so as to counterbalance the weight of the boom on the undercarriage.
Inventors
- 👤 D Wallace
- 👤 J Turek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:15
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/62; B66C23/84; B66C23/86; B66C23/72; B66C23/78; B66C23/80
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
128 words
A system for controlling a boom comprising: an undercarriage including a base adapted to engage and rest on the ground, an upper face, and extendable means supporting said upper frame above said base and for leveling said upper frame relative to a horizontal plane; a superstructure including a frame, a pair of elongated rails on said frame, a plurality of hydraulic jacks on said frame for engaging the ground and assuming equal portions of at least some of the weight of said superstructure; first controllable turntable means mounting said superstructure to said undercarriage, means for adjusting said superstructure in azimuth when said undercarriage is in place; a carriage on said rails of said superstructure; boom means on said carriage and means for moving said carriage along said rails.
Claim 2
Independent Claim
128 words
A system for controlling a boom comprising: an undercarriage including a base adapted to engage and rest on the ground, an upper face, and extendable means supporting said upper frame above said base and for leveling said upper frame relative to a horizontal plane; a superstructure including a frame, a pair of elongated rails on said frame, a plurality of hydraulic jacks on said frame for engaging the ground and assuming equal portions of at least some of the weight of said superstructure; first controllable turntable means mounting said superstructure to said undercarriage, means for adjusting said superstructure in azimuth when said undercarriage is in place; a carriage on said rails of said superstructure; boom means on said carriage and means for moving said carriage along said rails.
Claim 3
Independent Claim
128 words
A system for controlling a boom comprising: an undercarriage including a base adapted to engage and rest on the ground, an upper face, and extendable means supporting said upper frame above said base and for leveling said upper frame relative to a horizontal plane; a superstructure including a frame, a pair of elongated rails on said frame, a plurality of hydraulic jacks on said frame for engaging the ground and assuming equal portions of at least some of the weight of said superstructure; first controllable turntable means mounting said superstructure to said undercarriage, means for adjusting said superstructure in azimuth when said undercarriage is in place; a carriage on said rails of said superstructure; boom means on said carriage and means for moving said carriage along said rails.
Claim 4
Independent Claim
128 words
A system for controlling a boom comprising: an undercarriage including a base adapted to engage and rest on the ground, an upper face, and extendable means supporting said upper frame above said base and for leveling said upper frame relative to a horizontal plane; a superstructure including a frame, a pair of elongated rails on said frame, a plurality of hydraulic jacks on said frame for engaging the ground and assuming equal portions of at least some of the weight of said superstructure; first controllable turntable means mounting said superstructure to said undercarriage, means for adjusting said superstructure in azimuth when said undercarriage is in place; a carriage on said rails of said superstructure; boom means on said carriage and means for moving said carriage along said rails.
Claim 5
Dependent Claim
94 words
The system of claim 1 wherein said extendable means of said undercarriage comprises a plurality of first jacking means, each of said first jacking means having a piston rod pivotally connected to one of said base and said frame and a cylinder and pivotally connected to the other of said base and said frame, one of said jacks being controllable to determine the elevation of said upper frame relative to said base of said undercarriage, and the others of said first jacking means being operative to level said frame relative to a horizontal plane.
Claim 6
Dependent Claim
98 words
the system of claim 1 wherein each of said rails includes an elongated beam having an inwardly extending flat and wherein said carriage includes means for mounting said carriage on said flats of said rails comprising a plurality of support wheels resting on the upper sides of said flats and a set of pressure wheels mounted beneath said flats and opposing said upper wheels, and means for urging opposing pairs of wheels together to place said flat in compression and thereby preload the mounting of said carriage to inhibit deflection of the same from its predetermined horizontal plane.
Claim 7
Dependent Claim
46 words
The system of claim 3 wherein said means for mounting said carriage to said rails further comprises preloaded roller means engaging the lateral portions of said flats to induce compression therein and to preload said carriage against deflection about a vertical axis relative to said rails.
Claim 8
Dependent Claim
53 words
The system of claim 1 further comprising counterweight means mounted for movement on said superstructure and connected to said carriage to move in an opposite translatory direction relative to the movement of said carriage along said rail to counterbalance the weight of said carriage and boom relative to the center of said superstructure.
Claim 9
Dependent Claim
64 words
The system of claim 5 wherein said counterweight means includes first and second weights, second and third pairs of rails mounted on said superstructure frame on opposite sides of said first-named rails, said first and second weights each including wheels for mounting respectively on said second and third rails for movement therealong in a direction opposite to the direction of translation of said carriage.
Claim 10
Dependent Claim
73 words
The system of claim 1 further comprising a flexible piece of sheet metal adapted for flexing in a horizontal plane and means for guiding said sheet metal, one edge of said sheet metal being secured to said superstructure and the other end of said sheet metal being secured to said carriage, whereby flexible cables and the like may be attached to said sheet metal piece in communication from said superstructure to said carriage.
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |