Matches 1 - 50 out of 418 1 2 3 4 5 6 7 8 9 >


Match Document Document Title
8985275 Lift safety system  
A lift safety system that prevents the lifting of a support platform from a support base until all of the support legs for the support base are supporting a minimum amount of weight to ensure...
8973709 Brake module and lift having the same  
A lift includes a mast and a brake module. The mast is for disposing on a working surface and has at least one track. The brake module is connected to a lift module mounted on the mast and...
8931994 Lift accessory  
The present invention is a lift accessory for aerial lifts and related machines. The lift accessory includes sets of retractable supports for materials around the perimeter of an aerial lift...
8905190 Access system, a method of assembly, a support element, a guiding element and an extruded profile for the system  
An admission system, particularly for containers, with a raiseable platform. The system includes towers of carryable profiles with at least one longitudinal recess adapted for interference by at...
8863899 Lift safety system  
A lift safety system that prevents the lifting of a support platform from a support base until all of the support legs for the support base are supporting a minimum amount of weight to ensure...
8833523 Upright for a lift truck  
An upright for a lift truck includes a first group of mast sections in a first stagger arrangement where a first mast section of the first group of mast sections is fixed to the lift truck. The...
8800716 Adjustable work platform for pipe and casing stabbing operations  
A stabbing basket, for a rig and for supporting a worker while stabbing joints of tubular members together during running operations, comprises a frame member for mounting the stabbing basket to...
8789654 Mast lift with screw drive and gas strut  
A mast lift includes a base, a platform, and a lifting assembly connected between the base and the platform. The lifting assembly moves the platform between a lowered position and a raised...
8770346 Method and apparatus for reaching from outside an upper level of a tall structure  
An embodiment of the invention is directed to a system having a pulley attached to a building. A closed loop of cable is installed around the pulley. The loop is of sufficient length so as to...
8723638 Tactile feedback for joystick position/speed controls  
A joystick controller is disclosed for controlling speed of a boom lift platform, the controller having motors or the like that provide tactile feedback that is intuitively interpreted and...
8696479 Observation tower  
The present invention relates to an observation tower, particularly a tower having a moveable observation enclosure. An embodiment of the observation tower comprises an upright support member with...
8695249 External elevator/advertising board system for buildings  
The external elevator/advertising board for buildings includes an elevator carriage riding on a track assembly on at least one side of a building. Each elevator carriage is defined by an elongate,...
8695759 Apparatus and method for safely lowering user from structure with track-actuated hydraulic brakes  
An apparatus is disclosed for safely lowering a user from a structure. The apparatus includes a user support component upon which the user is supported while being safely lowered from the...
8684138 Hunting stand assembly  
A hunting stand assembly is provided for facilitating erection and positioning of the hunting stand by one person. The assembly includes a base assembly configured for coupling to a support...
8651237 Worker support cage for front end loader bucket  
An apparatus is provided for lifting a worker into an elevated work position. The apparatus includes a worker-support cage configured for engagement with a bucket of a front-end loader.
8636112 Safety lockout system  
A safety lockout system for releasably locking a mast guided working surface to a mast is provided. The safety lockout system may include an outer rollcase, an inner rollcase, and a lockout...
8636111 Suspension platform system  
A suspension platform system having a work platform suspended between a sinistral modular mast and a dextral modular mast by a hoisting system. The modular masts are composed of at least two mast...
8584801 Self-climbing hoist, deck and scaffold platform system  
The invention is a hoisting and placement system that also serves as a mobile land based complete crane system that is useful on a building under construction. The crane system can be installed on...
8585324 Maintenance platform for off-shore construction  
The invention relates to a maintenance platform (1, 10) for an oil rig equipped with a work platform and at least three frame legs (2) b, particularly a jackup oil rig, wherein at least one corner...
8556003 Split sub-basement drill rig  
A substructure of a drill rig includes, among other things, a base and an intermediate section that is adapted to be raised above the base, wherein the intermediate section is further adapted to...
8550211 Aerial work assembly using composite materials  
An aerial work assembly including components having composite materials including a fabric-reinforced resin for providing electrically non-conductive assembly, by insulating and/or isolating...
8550212 Aerial work assembly using composite materials  
An aerial work platform assembly is provided, comprising a platform shaft retaining assembly; a mounting bracket connected to the platform shaft retaining assembly; and a platform connected to the...
8544604 Elevating platform assembly  
An elevating platform assembly (50) comprises a pair of laterally spaced, generally vertical masts (52). A drive mechanism (100) is coupled to each mast (52) and is moveable upwardly and...
8534422 Portable modular lift system  
A portable modular lift system that may be easily transported to a lifting location and compactly stored when not in use. The portable modular lift system generally includes a support base having...
8534420 Apparatus and method for safely lowering user from structure  
An apparatus is disclosed for safely lowering a user from a structure. The apparatus includes a ring structure configured to coaxially surround a pole structure including a spiraling inclined...
8505688 Mast lift and mast lift system  
A lift system is coupled between a work platform and a mast on a mast lift. The lift system includes an overload clutch that slips upon an overload on the lift system, an overrun brake that...
8499896 System for limiting horizontal movements in a lift  
The invention relates to a system for limiting horizontal movements in a lift for humans or equipment in eg. a wind turbine tower or the like. The lift is to be provided with one or more sliding...
8490749 Device for enabling access to a structure above ground level  
A device for enabling access to a structure above ground or sea level, in particular a rotor blade of a wind turbine, by lowering and/or lifting the device in relation to the structure, the device...
8479884 Automatic locking device for track mounted gangway  
A locking device and apparatus is disclosed. The locking device is particularly suitable for use in combination with a device such as a track mounted gangway and safety cage to reduce the ability...
8459412 Portable scaffold system  
A scaffold system includes first and second spaced apart vertical posts. An upper support device mounts at an upper portion of each of the first and second vertical posts and includes spaced apart...
8418810 Collapsible man-lift for use in wind turbine towers  
A collapsible man-lift for use in the hollow tower portion of a wind turbine includes a support frame assembly, a foldable floor assembly and a collapsible cage assembly. The support frame...
8403109 Tracking gate for extended gangway  
An apparatus for providing safe access to a top of a mobile container. The mobile container has a top, a longitudinal dimension, and a plurality of hatches arrayed along the longitudinal dimension...
8402850 Load displacement apparatus  
A load displacement apparatus to displace a mobile platform along a structure includes a worm screw mounted on the platform for rotation about its axis that meshes with a plurality of support...
8360203 Work platform for an overhead crane  
A work platform for use in performing maintenance while supported on an overhead crane. The work platform is particularly useful for performing maintenance on overhead cranes located in areas...
8316994 Battery powered vertical lift assembly  
The invention is a battery powered vertical lift assembly adapted for vertically raising and lowering a load along a substantially vertical structure. The vertical lift assembly comprises a...
8302735 Self-erecting suspension platform system  
A self-erecting suspension platform system having a work platform suspended between a sinistral modular mast and a dextral modular mast by a hoisting system. The modular masts are composed of at...
8297405 Adjustable work platform for pipe and casing stabbing operations  
A stabbing basket, for a rig and for supporting a worker while stabbing joints of tubular members together during running operations, comprises a frame member for mounting the stabbing basket to...
8292032 Platform lift  
A platform lift for use with a vehicle includes a platform assembly having a plurality of support legs, and a lift mechanism having a support portion moveable between at least a first position and...
8292031 Platform lift apparatus for attic storage space  
A platform lift apparatus enables the safe movement of objects to and from an attic storage space. The platform lift apparatus includes a frame, a drive mechanism, and a platform. The frame...
8276713 Method of building liquid tank using movable scaffolding  
Disclosed is a scaffold installed within a large structure such as a pressure vessel or a tank of a ship, and an insulation system construction method using the same. The scaffold for use in...
8261879 Liquid tank building system using movable scaffolding  
Disclosed is a scaffold installed within a large structure such as a pressure vessel or a tank of a ship, and an insulation system construction method using the same. The scaffold for use in...
8251177 Collapsible access tower  
A collapsible access tower has a chassis 10 supporting a pair of road wheels 11 and outriggers 16,17 to impart stability when in use, and a pair of extensible multi-section columns 26,50 carrying...
8235178 Elevator with frictional drive  
The invention is an elevator comprising a movable component, a vertical track mounted along an elevator shaft, a driven frictional engagement device for frictional engagement with one side of the...
8181921 Platform telescoping mechanism  
Disclosed are various embodiments of a platform telescoping system which comprises a platform, a first supporting arm, a second supporting arm, a telescopic driving mechanism which comprises a...
8167089 Liftable scaffold  
A system for lifting a platform includes a frame attached to the platform. The invention has at least one upright member having equally spaced holes longitudinally aligned, with each of the holes...
8162159 Modular garage storage  
The modular garage storage system includes a geared retraction system that allows a storage platform of the modular garage storage system to be lowered for easy access to loading and loading the...
8122998 Device for transporting and erecting a hunting ladder stand  
A device is provided which can be converted from a transporting cart to an erecting hoist for a hunter's tree ladder stand. The device includes components which can be assembled into the cart,...
8079444 Transportable, self-erecting, battery powered, vertical lift assembly  
A transportable, self-erecting, battery powered, vertical lift assembly includes a wheeled frame with a towing attachment mechanism. A linear guide member with an exterior roller chain member is...
8011473 Motorized stepladder  
A stepladder comprises a front frame and a rear frame each formed of a pair of spaced side rails. A motor-driven step is slidably mounted on the front frame side rails. The motor is controlled...
7942244 Lifting assembly  
The invention relates to a lifting assembly (10, 20, 30, 40, 50, 60, 70, 80, 90) comprising: a rack mast, a platform (12, 23, 33, 43, 53, 91), and at least one power unit (100, 300, 400, 500, 600,...

Matches 1 - 50 out of 418 1 2 3 4 5 6 7 8 9 >