Matches 1 - 50 out of 82 1 2 >


Match Document Document Title
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...
8622174 Escape devices for high-rise buildings  
An escape device for high-rise buildings includes an escape capsule, a speedup gear mounted to the escape capsule, a track provided with a rack with which the speedup gear is engaged so that the...
8453797 Method of servicing the outer components of a wind turbine such as the wind turbine blades and the tower with a work platform and work platform  
A method of servicing a wind turbine generally comprises rotating a rotor of the wind turbine until a blade extends downwardly next to the wind turbine tower. A work platform is positioned next to...
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...
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...
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...
7975807 Elevator climbing system  
A portable elevator climbing system removably attachable to a cantilevered overhang on an adjacent structure, whereby an elevator car travels up and down a plurality of roller chains. The roller...
7934585 Method of servicing the outer components of a wind turbine such as the wind turbine blades and the tower with a work platform and work platform  
The invention relates to a method of servicing the outer components of a wind turbine such as the wind turbine blades and the tower with a work platform, said method comprises the steps of:...
7740107 Maintenance platform  
A maintenance platform for suspension on support cables, in particular for maintaining rotor blades of wind turbines, wherein the maintenance platform is formed by at least two sub-platforms...
7735807 Tension holder for load lifting  
A rigging, operable to raise and lower the platform, passes through a restraint device comprising a tension holder. The tension holder comprises a first body having a substantially planar face...
7597175 Reed's high-rise emergency rescue egress system  
Reed's High-Rise Emergency Rescue Egress System, a conventional truck chassis fitted with a hydraulic lift system for access into and the evacuation of individuals from high-rise buildings. The...
7014011 Scaffolding lift system  
A scaffolding lift system includes a base member and a plurality of elongated vertical support members secured to the top surface of the base member. A power-operated motor is positioned adjacent...
6889798 Apparatus for controlled stabilized descent  
An apparatus for descent, suspension and retrieval of a worker through an opening in the ground includes a trailer having a boom assembly mounted thereon is described. The boom assembly includes...
6698544 Fall protection lanyard apparatus  
A fall protection lanyard apparatus incorporating an automatic emergency release is disclosed. Competing concerns of fall protection (for the load) and on-demand emergency release (for the aerial...
6695097 Construction hoist system  
A versatile construction hoist system comprises a hoist trolley having a first pair of connection members, and a work platform having a second pair of connection members. The work platform is...
6666299 Movable scaffold and method for painting cylindrical tank  
A movable scaffolding for painting or otherwise servicing the sides of a cylindrical tank or like structure comprises a remote controlled, powered truck that is positioned adjacent a peripheral...
6539676 Portable roof anchor  
A portable roof anchor having a slidably adjustable beam member is supported at a pivot location near a line support end and at an opposed end by a rotatably attached self-leveling counterweights....
6505709 Sleigh shaped device for mining raises  
A sleigh-shaped device, having a longitudinal axis and a transverse axis, for use in a mining raise. The sleigh-shaped device has a base frame for sliding along the mining raise in a direction...
6241205 Roof guard device for lifting objects on to a roof  
A Roof Guard device (10) when an individual lifts an object (96) on to a roof structure (14) from a lower level that includes a stepplate (12) removably received upon a horizontal perimeter...
6216600 Jumping ramp for motorized toy vehicles  
A jumping ramp for a motorized toy vehicle including a jumping surface having an area along which the toy vehicle can travel, a frame pivotally connected to the jumping surface at one end thereof,...
6105728 Handicapped duck blind elevator system  
A handicapped duck blind elevator system for elevating/lowering handicapped individuals to and from a conventional duck blind structure. The inventive device includes a support frame that is...
6082493 Method and apparatus for suspending worker's scaffolds over the sides of buildings  
An apparatus for attachment of a davit mount for holding a scaffolding over the side of a building attaches directly to a structural column of the building, and eliminates the need for both a...
5992565 Lifting scaffold assembly  
A lifting scalfold assembly with several scaffolding poles which stand on a base and which are extendable in length and, between which mobile platforms are situated such that they can be adjusted...
5617931 Modular scaffolding system  
A scaffold system having modular components including interconnectable side walls or side trusses having extruded upper and lower truss members, decks and various section connectors which are...
5425433 Elevating apparatus  
An elevating apparatus comprises a rack (1) supporting the apparatus, and an elevating platform (7) adjustable in height and suitably guided by at least one mast (8) or column. The mast (8) may be...
5392878 Bulk material load vehicle access system  
An upstanding support structure is provided defining an elevated horizontally elongated stationery platform extending along one side of the support structure and a horizontally elongated second...
5379860 Carrier for construction of buildings  
A carrier having (a) a frame having a middle portion transversely formed between two lateral portions attachable to and detachable from a layer of wall formed between two shutters, the lateral...
5365860 Manually-adjustable cantilevered work station platform  
A portable, manually adjustable work station (10, 60) for use on a support surface. The work station (10, 60) includes a frame assembly (12) and a platform member (18, 68). The frame assembly (12)...
5337858 Safety system for multi-stage lifts  
A lift has a base frame supported on a pair of screw jacks and a pair of support legs when a multi-stage mast on the lift is to be raised. The support legs are slide mounted in guides and each is...
5152369 Apparatus and method for hoisting a platform adjacent a scaffolding  
A hoist apparatus includes a support member having first and second opposite end portions. A winch including a winch motor and a winch reel rotatable relative to the winch motor about a reel axis...
5129484 Traveling device for raising or lowering persons or objects  
A traveling device for raising or lowering persons or objects for theater stages or the like has a two-part traveling carriage. The two traveling carriage parts (1 and 2) are connected by lattice...
5067587 Service platform for mobile scaffolding unit  
The mobile scaffolding unit has a tower, a work platform and a service platform. The work platform can be resupplied by the service platform so as to maintain the work platform at a working...
5058708 Scaffold and hoist structure  
A hoist for a scaffold assembly includes a track assembly with starter, extension and head sections adapted for mounting on lower, intermediate and upper frames of the scaffold assembly. The head...
5022489 Hoisting apparatus for a manhole  
A hoisting apparatus for a manhole adapted to be fastened to a guardrail of a manhole. The hoisting apparatus is vertically spaced above and extends across the manhole. The hoisting apparatus has...
4911266 Ladder lift apparatus  
An improved ladder lifting apparatus usable to lift heavy loads from the ground to a roof surface including a horizontally positioned, hand or shoulder mounted lifting bar or beam with a winch...
4899847 Mobile supports  
This invention is directed at a mobile ladder which has a two pairs of rollers. One pair of rollers moves in a first metal trough and the other pair moves in another metal trough. The metal trough...
4875547 Portable conveyor system with telescopic boom assembly and load carrying apparatus  
A portable conveyor system comprises an extensible and retractable boom assembly mounted on a transportable stationary support. The boom assembly comprises a plurality of longitudinally spaced...
4753321 Traveling worker platform  
A worker platform for sandblasting a cylindrical fuel storage tank includes a lookout frame section secured to the tank top that has an arm extending radially outward beyond the tank wall and a...
4706779 Transportable, twin telescopic arm platform hoist  
The present invention is a transportable hoist consisting of a twin-arm telescopic unit comprising a given number of rectangular telescopic elements, which can be extended longitudinally by means...
4660679 Safety alarm tripod  
A tripod utilized over a manhole or the like to aid in the introduction or removal of a workman or equipment into the hole includes a housing and three legs extending downwardly and outwardly from...
4650035 Elevatable work station  
This invention is a self-hoisting platform which can be used by painters, carpenters, or the like when painting or repairing elevated building structures. This is accomplished through the...
4598794 Scaffolding system  
A side rail system for interconnecting layered sections of elongated scaffold staging with the sections respectively spanning pairs of opposing upper and lower support arms of pump jacks which...
4597471 Heavy duty pump jack  
A pump jack arrangement for traveling up and down a pole including a frame member upper and lower shackle members supported by the frame member. A pump arm and a support arm are provided for...
4499967 Scaffolding staging  
An interconnected scaffolding platform having at least two elongated staging sections which are butted together so as to lie colinearly and in a common plane. A pair of lateral plates...
4458785 Lift  
A multistage portable lift has an arm projecting rearwardly from one of the movable lift stages and a reeving system including a cable transferring a downward counterbalancing force to the arm...
4422528 Aerial basket structure for linemen and method for utilizing same  
A basket structure for supporting linemen performing maintenance work on tower supported lines and method of performing same is disclosed. The basket is embodied within an enclosure having corner...
4392550 Scaffolding arrangement  
A scaffolding generally of the type for use in placing siding on a vertical wall of a house wherein the scaffolding has two posts disposed vertically and supported at the lower end by a support...
4382488 Pump jack poles  
A pump jack upright pole formed of an elongated metal pole having a rubberized surface formed on only one side of the metal pole. The pump jack securely rides up and down the pole. The rubberized...
4262773 Portable scaffold  
A self-contained scaffold and lift unit includes first and second pairs of parallel, spaced apart vertical rails joined together by horizontal braces. A movable lifting carriage unit is disposed...
4261434 Fire escape device  
A device is described which provides egress for persons trapped in burning buildings. The invention comprises a portable supportive base structure having attached thereto a plurality of...

Matches 1 - 50 out of 82 1 2 >