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7958693 |
Boom for excavation machine
In a boom 15 for a working machine 10 attached to an upper rotational body 30 supported on a center of an upper portion of a crawler-type traveling device 40 to be transversely rotatable, the boom...
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7040552 |
Suspended boom with gauge members
An applicator boom apparatus comprises an applicator boom extending laterally from a vehicle, and pivotally attached to the vehicle such that the boom can pivot up and down with respect to the...
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6484469 |
Column structures and methods for supporting compressive loads
A column assembly preferably includes a tube member having a wall that defines an interior volume. The column assembly is preferably operable to convert external, axial compressive forces applied...
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6290377 |
Pneumatically telescoping mast having DC operated lighting and pivoting means
An improved pneumatically telescoping mast supported for pivotal movement in opposite directions is provided. The mast includes adjacent telescoping sections slidable relative to one another...
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6253502 |
Van with extensible boom
A conventional cargo or passenger-type van (typically about 14-24 feet in length) is fitted with a boom assembly that is readily transported with the van in a collapsed position and substantially...
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6102059 |
Movable vehicle cover
A movable device for alternatingly covering and uncovering a vehicle is shown and described. The device includes a protective cover, a structural member, a lift member, and an inlet for receiving a...
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6067756 |
Space saving room extender
A space-saving, single-cylinder, room extender, this invention consists of a hydraulic cylinder, electrically powered screw auger or other electrically powered means is nested within an inner...
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6053419 |
Velocity damping system
A self-centering boom for self-propelled agricultural sprayers having a double-acting hydraulic cylinder and a magnetically actuated electrical position sensor and control for sensing and moving...
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5995063 |
Antenna structure
The present invention relates to radio communications and in particular to antenna structures. There is a growing demand in the radio communication system market to reduce the size and cost of...
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5887390 |
Boom swing control device and assembly
A boom swing control device for controlling boom swing relative to a frame. Booms may be supported relative to a frame for application of material over a wide area. During an application process,...
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5860252 |
Arrangement at self expanding booms
A valve mechanism for self-expanding booms. The mechanism is preferably a mechanical expansion device that folds out the boom so that air flows into the boom to fill the boom. When the boom is...
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5850713 |
Device raising and lowering apparatus
An apparatus for raising and lowering devices such as an antenna including a multiple-stage cylinder system composed of a plurality of telescopically connected cylinder units each of which...
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5832676 |
Disaster restoral pop-up structure
A structure having dimensions for transportation on an airplane, and which when assembled into a module has sufficient headroom for an average height person. The structure includes two portions, a...
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5572837 |
Pneumatic telescoping mast
A pneumatically telescoping mast adapted for mounting an electrical fixture is disclosed. The telescoping mast includes a pneumatic control system to extend the mast from a retracted position to an...
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5494397 |
Load handling apparatus
A load handling apparatus for a vehicle includes a telescopic boom pivotably mounted on a chassis frame of the vehicle. The boom has first, second, third, and fourth sections telescopically engaged...
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5333422 |
Lightweight extendable and retractable pole
A lightweight extendable and retractable telescopic pole is disclosed comprising a plurality of non-metallic telescoping cylinders with sliding and sealing surfaces between the cylinders, a first...
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5269107 |
Mobile boring rig
Mounted on a vehicle (10), the mast (20) of a boring rig is supported by an erection hinge (18). The erection hinge (18) is provided on a first carriage (19) having a support cylinder attached (28)...
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5117595 |
Device for erecting and aligning a tilting telescopic mast mounted on a transport vehicle
A device raises and aligns a tiltable telescopic mast which is mounted on a transport vehicle and which can be raised by one or more lifting cylinders from a horizontal or almost horizontal...
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5063716 |
Hoisting apparatus
The hoisting apparatus is comprised of a mast (1) consisting of four vertical rods (2, 2', 3,3') two of which have internal spaces accommodating strength members. The rods (3, 3') with strength...
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5058336 |
Hinged flange pole
A column is attached at a base flange to a plate of a base member by way of an offset horizontal pivot, and can be pivotally raised and lowered by means of a ram. The pivot lies in the general...
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4974997 |
Hydraulic setting tool for installing anchoring and foundation support apparatus
A hydraulic setting tool assembly for setting earth anchor and foundation devices comprising side-by-side hydraulic motive members. Each motive members comprises a piston movable within a cylinder....
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4912890 |
Air/water cranes
The present invention deals with a new hoisting and supporting machine used for supporting and lifting loads from the base level to different levels. The machine is essentially an air and water...
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4696135 |
Method and apparatus for constructing towers
In the construction of tall concrete towers, a two part derrick is suspended by cables from the tower to the lower part of the derrick. The derrick is extended on hydraulic rams, raising its upper...
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4688690 |
Method and apparatus for extending fly section of crane boom
Method and apparatus for extending a fly section of a telescopic crane boom which fly section does not have its own power unit to effect extension or retraction. The boom includes a base section,...
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4676340 |
Telescopic boom assembly having high dielectric properties
A telescopic boom assembly is disclosed. The assembly includes a plurality of boom members having at least first, second and third boom arms telescopically disposed within each other. The first...
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4663900 |
Locking mast and stop ring assembly
A locking assembly (35) for telescoping masts (10) having at least first and second tubes (12,13), the second tube (13) fitting within the first tube (12). The assembly includes sleeve means (36)...
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4635805 |
Crane boom locking pin insertion indicator and actuator means
A power actuator on the base section of a multi-section telescoping crane boom can bridge at least one intermediate boom section to operate a biased locking pin retract mechanism employed in a...
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4616454 |
Slant service rig
A guide mat for a slant service or drill rig. The guide mat comprises rearward and forward portions and an open area in the rearward portion which is used to allow access to a wellhead. Adjustable...
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4602462 |
Boom articulating mechanism for aerial devices
In a truck mounted overcenter aerial device having an articulating boom assembly, a mechanism for articulating the upper boom relative to the lower boom. A star wheel on the upper boom is acted...
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4598509 |
Method and apparatus for raising and lowering a telescoping mast
Method and apparatus for raising and lowering a telescoping mast. A telescoping mast having an upper section slidably received within a lower section is pivotally connected to a base in a...
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4594824 |
Telescoping tower for floodlighting equipment and the like
A telescoping mast assembly for floodlighting equipment or other apparatus is arranged to be raised by admitting pressurized fluid to the interior of the assembly and lowered by releasing the...
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4581862 |
Drilling equipment tower raising mechanism
A raising mechanism for drilling equipment towers mounted on a platform and having two pairs of linkage members, one shorter than the other one, each pair having its members connected on one end to...
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4490951 |
Remotely operable latch and locking pin for a multi-section boom including a manual fly section
A multi-section hydraulically operated telescoping crane boom includes a manual fly section (23) which may be safely extended and retracted, securely latched in the extended position and pin locked...
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4478014 |
Telescopic boom with angled corner construction
A telescopic boom is disclosed having a plurality of generally tubular boom sections each having its corners defined by angled corner plates converging upwardly and inwardly at equal angles...
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4463528 |
Articulated aerial boom and an elbow linkage assembly therefore
An articulated aerial boom and an elbow linkage therefore permitting the proximal end of the upper aerial boom to rotate approximately 210° about the proximal end of a lower aerial boom.
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4459786 |
Longitudinally bowed transversely polygonal boom for cranes and the like
An improved, high strength extensible crane boom is provided which has a plurality of elongated, tubular, telescopically interfitted, longitudinally bowed, prestressed boom sections, along with a...
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4408424 |
Telescoping cylinder stabilizer
A stabilizer for a telescoping cylinder and rod is disclosed. The stabilizer includes a support body which carries a cylinder rod encircling clamp and a bell crank. The support body and bell crank...
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4406097 |
Telescopic mechanism
A telescopic boom arrangement comprises an innermost member, a plurality of intermediate tubular sections 12, and an outermost tubular member, each nested together, the arrangement being adapted so...
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4393630 |
Actuation means for the racking platform of a mast
In combination with a telescoping well mast structure having a fixed lower structure and a traveling upper structure, a device to time and actuate the extension and retraction of a racking platform...
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4380244 |
Hose control system
An arrangement for keeping taut and untangled the hoses of the hydraulic system of the telescoping booms of a crane includes a wheel around which the hose is trained and a cable by which the hose...
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4375241 |
Drilling installation, more specifically for oil-drilling operations
This invention concerns a drilling installation comprising a base which rests on the ground, a rig, a winch, items of equipment such as a drill-pipe storage coffer, and a working floor which is...
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4368602 |
Mobile drilling rig having a retractable guiding mount or mast
The mobile drilling machine includes a full track or wheeled undercarriage, a drilling mast provided with first guiding tracks extending in the longitudinal direction of the mast for guiding a...
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4358915 |
Self-assembling telescopable structure
The invention relates to a self-assembling telescopable structure comprising a plurality of members which can be slipped and unslipped into and from each other. For the assemblage and disassembling...
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4357994 |
Hydraulic well equipment hoist
A vertically elongated frame is provided including pairs of opposite sides and each opposite side includes a pair of upstanding opposite side guides. First, second and third pairs of upper,...
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4350255 |
Telescoping mobile crane
A telescopic, mobile crane comprising, a first base member pivotally mounted on a carriage, a second telescopic member telescopically engaged with the first member, an idle or manual member...
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4327533 |
Crane boom extending, retracting and cooperative latching arrangement
To reduce the weight and increase the lifting capacity of a multi-section telescopic crane boom, a single hydraulic cylinder for the full extension and retraction of individual boom sections is...
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RE30905 |
Multi-section telescopic boom
A multi-section telescopic jib or boom comprising a base section and three movable sections mounted to extend or retract relative to each other on operation of drive means within the sections,...
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4304077 |
Mounting assembly for hydraulic conduits of a mobile apparatus
A mobile apparatus (20) has a hydraulically operated pivoted boom (22) and a hydraulically operated pivoted arm (24) and on the free end of the arm is a hydraulically operated mechanism (26) for...
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4297815 |
Power arm fitted with coupling devices for a member provided to control its position
The invention relates to a power arm comprising four faces, two of which being constituted by plates, which arm is mounted for pivotment about an axis and with respect to a structure, and is fitted...
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4290495 |
Portable workover rig with extendable mast substructure, platform mounted drawworks and adjustable wellhead anchor
A portable workover rig for handling a pipe string in a well casing includes a base platform and a collapsible mast which is movable from a reclining transport position to an erect elevated...
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