Matches 1 - 46 out of 46


Match Document Document Title
8985274 Flatbed loading system with self-aligning platforms  
A mobile platform has a separate and independent linear actuator pivotally connected near each opposite end of the platform where there is a contact limit switch that when triggered by contact...
8893853 Stair system for oilfield tank  
A mobile storage tank includes a wall, a platform secured to the wall, and a structure that provides ascending access to the platform. The structure is configured to transition between a retracted...
8800717 Mobile scaffolding units with extendible gantry platform and methods of using same  
Mobile scaffolding units include a vehicle for movement across ground surface, a stationary platform rigidly fixed to the vehicle at a predetermined immovable height above the ground surface, and...
8678135 Aerial work apparatus with laterally offset work platform  
An aerial work apparatus comprising a mobile chassis having a longitudinal centerline, a lift mechanism such as a scissors lift having a lower end connected to the chassis and an upper end which...
8662250 Stair system for oilfield tank  
A mobile oilfield storage tank includes a front wall and a removable stair system coupled thereto. The stair system includes a platform suitable for use as a walkway and a platform extension...
8413764 Ladder safety device, systems and methods of arresting falls from ladders  
A ladder safety device, systems and methods of arresting falls from ladders are provided. The ladder safety device includes a safety guide that extends along the length of an extension ladder. The...
8151935 Lifting and positioning apparatus  
A lifting and positioning apparatus (10) including a base support (14), an elevator mechanism (12) having an upper and a lower end; an actuator (21) for operating the elevator mechanism between a...
8113314 Stair system for oilfield tank  
A stair system for a mobile storage tank includes a platform subsystem attached to a wall of the mobile storage tank, a staircase subsystem coupled to the platform subsystem, and a rail subsystem...
8051951 Retractable access platform  
An apparatus for providing access to vehicles and containers on a pair of railways or thoroughfares. The apparatus is comprised of a raised walkway between the pair of thoroughfares having a...
7869923 Slewing controller, slewing control method, and construction machine  
In an excavator equipped with an offset boom, an offset command value generating device of a rotation control device offsets a second boom arranged on a distal end side in a rotation direction...
7004286 Motorized scaffold with displaceable worker support platform  
A motorized scaffold for self-displacement on land is comprised of a support base mounted on a pair of traction belts. Jacks are provided to immobilize and level the support base at a desired...
6598702 Under bridge access apparatus with cross-linking member connecting tower with vehicular chassis  
An under bridge access vehicle includes a tower having a ladder section and a platform section, and a vehicular chassis including a turntable mounted on the vehicular chassis for rotation...
6547034 Pruning system  
A pruning vehicle having characteristics specifically utilizable in an orchard having rows of trees opposite each other. The vehicle is equipped with two platforms side by side which can be...
6401864 Collapsible stabilizing devices  
A stabilizing system includes at least one outrigger assembly. Each outrigger assembly has a pivotable first leg operably connected to a second leg. At least one locking mechanism is operatively...
6378653 Travel and rotation control device for boom lift  
In a boom lift vehicle comprising a vehicle equipped with a travel apparatus and capable of travel, a boom that is attached to said vehicle and is at least vertically tiltable and horizontally...
6186273 Self-contained staging system for cleaning and painting bulk cargo holds  
Each of a plurality of cargo holds of a bulk carrier vessel has a self-contained staging system lowered into it, from the platform track of which workers operate semi-automatic blasting machines...
6095285 Scaffolding  
In a scaffolding at least one tower anchor to secure the tower to a wall, a sleeve surrounding the tower and guided for up and down movement along the same, a support frame releasably secured to...
5755306 Personnel lift incorporating an outreach mechanism for an aerial work platform  
An outreach mechanism (34) for an aerial work platform (22) on a personnel lift (20). The outreach mechanism (34) is designed to attach an aerial work platform (22) to the upper section (24A) of a...
5732792 Fruit picking assist mechanism  
A new Fruit Picking Assist Mechanism for assisting fruit pickers and people pruning fruit trees. The inventive device includes a wheeled vehicle, a plurality of remote working platforms provided...
5553990 Hydraulic wheelchair lift  
Wheelchair lift (10) includes a platform (12) mounted on a carriage (14) for vertical travel between the ground and an elevated location along a mast structure (16) through the use of a linear,...
5363940 Aircraft work dock  
In a dock for carrying out work on an aircraft (18), support slides (34) which are carried by support frameworks (20-24, 28) are provided and are adjustable in a horizontal and a vertical...
5318149 Apparatus for inspecting the underside of bridges  
There is described an apparatus for inspecting the underside of bridges, with an undercarriage (1), an intermediate carrier (11) attached to this, a guide member (9) mounted on the intermediate...
5307898 Aerial work apparatus  
An improved mast assembly for an aerial work apparatus having improved stability and safety. A telescoping vertical main mast is connected to a telescoping vertical auxiliary mast.
5299653 Work station with mobile elevatable work platform  
Disclosed is an apparatus having a work platform comprised of an expandingly extendable basket mounted on an underframe. The basket has a relatively mobile portion that translates out from the...
5109951 Device for the curved displacement of an object in contact with a surface  
Device for the curved displacement of an object in contact with a surface, such as a convex, concave or complex surface, comprising a vertical support frame, arranged in the vicinity of the...
5018923 Automated bricklaying apparatus  
Automated installation for the laying for masonry on a wall, especially of a converter, comprising an operating station with a work plateform movable vertically inside the enclosure and capable of...
4932176 Extendible and retractible mast system  
A telescopic mast system has a base tube, a plurality of axially movable coaxial inner tubes nestable successively within each other and within the base tube, and a winch supported at the lower...
4799848 Adjustable control station for aircraft loader  
An adjustable control station for an aircraft loader for transferring containers between a controllably driven loader conveyor and a conveyor in cargo aircrafts of different sizes. The control...
4696371 Bridge bottom inspection apparatus  
The invention relates to a bridge bottom inspection apparatus which includes an operating chassis movable along the edge of the bridge. A lift tower (6) is raisably and lowerably supported by...
4690247 Inspection car for bridge construction of a high level road  
The inspection car is intended to inspect the lower side of the bridge construction of a high level road from above the high level road as well as from the ground and it comprises a swingable and...
4687073 Hydraulically elevatable access equipment  
Access equipment including a vehicle (10) on which stands a mast (14) movable between horizontal and vertical positions and mounted for rotation about an axis (13). The mast is telescopically...
4657111 Scaffold for servicing vessel propellers and the like  
The present invention relates to a scaffold for working under the stern of vessels for servicing propellers, propeller shafts, stern tubes, rudders and the like. The scaffold comprises a movable...
4546852 Adjustable service platform apparatus for a gantry crane  
An adjustable service platform apparatus for a gantry crane has an elongated base frame generally comforming in size and shape to a conventional load carrying lifting spreader, and twin service...
4442922 Adjustable slider bearing assembly  
The invention provides several embodiments of support assemblies (26,30,32) suitable for use in a lift mast (10). Each support assembly (26,30,32) has two slider bearings (36) for symetrically...
4422526 Access tower for manufacture of tunnel tubes  
An improved access tower for use in the manufacture of tunnel modules and tunnel sections for building underwater tunnel tubes is provided. The tower is positioned at one end of the tunnel module...
4238911 Telescoping columns  
An extendable column consisting of a plurality of axially elongated rigid structural sections nested within one another. Each section includes a plurality of screws running the length thereof and...
4154318 Retractable suspended scaffolding on a self-propelled truck, particularly adapted for maintenance work on road-bridges and the like  
There is disclosed a retractable suspended scaffolding mounted on a self-propelled truck which is particularly adapted for maintanence work on structures that are situated along roadways and at...
3927732 Scaffold  
A scaffold is provided on a top of the jack, which in turn is provided on the truck to be laid on the truck, so that the truck can be moved to the adjacent divisions passing through the man hole...
3709322 OVERHEAD SERVICE APPARATUS WITH SWIVEL PLATFORM  
Overhead service apparatus having a telescopically extensible inclined mast, mounted on a mobile base which is operable to swivel the mast about a mast-swivel axis, combined with a platform...
3666127 CARGO HANDLING APPARATUS  
An aircraft cargo-handling vehicle has an elevatable platform adapted to be raised approximately to the level of the sill of the aircraft cargo door, said platform being provided with a transfer...
3664456 CONVEYANCE SERVICING STRUCTURE  
Conveyance servicing structure includes a truck-mounted platform and elevator structure for raising and lowering the platform to various heights for servicing conveyances of various sizes or at...
3623902 METHOD OF MOVING A WORKING STATION WITH REFERENCE TO A SUBSTANTIALLY VERTICAL SURFACE  
Arrangement for moving a working station with reference to a substantially vertical surface, particularly the external surface of a ship hull. A vehicle is advanced in a horizontal path adjacent...
3509965 MOBILE OVERHEAD SERVICE UNIT  
3352380 Scaffold with catwalks for penetrating tree foliage  
3235038 Folding scaffold  
3031027 Mobile service equipment for overhead utility equipment  

Matches 1 - 46 out of 46