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7395899 |
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...
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7252315 |
System and method for personnel transfer
A personnel transfer device is rrovided including a base, a top and a concentric lacings extending between the base and top. An expander post is coupled between the base and top for placing tension...
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7232009 |
Ascension/descension apparatus and method
A pole ascension apparatus and associated method are disclosed. According to one embodiment, the apparatus includes a track connected to a pole and a portable platform portion detachably...
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7228669 |
Suspended table assembly
A suspended table assembly includes a first support and a second support that are vertically spaced from each other. A plurality of legs is provided. Each of the legs has a first end and a second...
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7191873 |
High-rise fire-fighting, rescue and construction equipment
For fire fighting and emergency rescue in high-rise buildings the building can be equipped with rails on the outside of the building. The rails have elevators, which travel on the rails on the...
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7156203 |
Device and method for evacuating persons, for example from a multi-storey building on fire
Device for evacuating persons, for example from a multi-storey building on fire, from an evacuating location to a secure location, comprising: a balloon provided to be filled with a gas lighter...
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7121600 |
Personnel transfer device for offshore use
A personnel transfer device is provided including a base, a top and a concentric lacings extending between the base and top. An expander post is coupled between the base and top for placing tension...
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7090050 |
Mobile tree stand
A mobile stand that can be suspended in a tree from an overhead location and thereafter be safely, quietly, and easily maneuvered by a seated occupant facing the tree into any position about the...
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7073628 |
Device for climbing on extended supporting elements, such as ropes, with releasable automatically reclamping clasps
The device for climbing a pair of ropes ( 1 ) includes upper and lower clasps ( 4,6 ) for clamping each rope and connecting elements for holding a climber, which include a movable or solid seat (...
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7000733 |
Work platform
A work platform ( 10 ) for performing work operations on an object such as roof construction work including an upper surface ( 15 A) for working on the roof and a lower surface ( 15 B) for storage...
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6955244 |
Individually operated escape device
The escape device is lowered via a cable which can be anchored above and outside a window of a burning building. The descent of the device is regulated by a speed regulating brake or by a valve...
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6945361 |
Mobile tree stand
A mobile tree stand that can be suspended in a desired position with a single rope, chain or the like, and thereafter safely, quietly and easily maneuvered into any position about the tree's...
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6942070 |
Emergency braking and shock absorbing device for a lift or suspended load
The load or the working platform is suspended and displaced by at least a pair of cables whereof the stresses are equivalent. Advantageously, each pair of cables is controlled by an emergency...
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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...
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6886663 |
Device for moving a platform along a facade and building provided with such a device
A device for moving a platform at least in vertical direction along a facade ( 1 ) of a building defining a front face by a cable ( 16, 17 ) which extends along the facade, which device comprises a...
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6868943 |
Safety systems and methods for bosun's chairs
A safety device for a bosun's chair includes means for movably attaching the bosun's chair to a mast and means for braking the bosun's chair relative to the mast.
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6782973 |
Device for climbing on extended support elements, such as ropes, with releasable automatically reclamping clasps
The device for climbing a pair of ropes ( 1 ) includes releasable upper and lower clasps ( 4,6 ) for each rope that clamp in response to a downward force acting thereon but relieve when the...
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6681894 |
Portable well head work platform
A portable work platform or basket adaptable to wellhead valve flanges at a point above the blowout preventors thereby providing 360-degree personnel access to the wellhead during work-over and...
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6675935 |
Helicopter lineman's ladder and method for energized powerline repair
A rigid, unitary ladder is provided having one end which attaches to a powerline support tower after the ladder is dropped by helicopter to a lineman previously offloaded onto the tower. The ladder...
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6675934 |
Suspended scaffold surveillance system
A suspended scaffold may be hung from a skyscraper, a ship's side or other structures where work on a surface is done by the workers on the scaffold. The surveillance system is a frame removably...
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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...
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6648102 |
Suspended dry dock platform
A cabled platform suspension system includes a platform having first and second support points at spaced locations along a front work-access edge of the platform and a third, stabilizing/rotator...
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6598708 |
Tapered roller screw apparatus and its driven device
A driving apparatus includes a roller screw that includes a main shaft, a plurality of roller shafts projecting radially outwardly and upwardly at an angle from the radial direction of the main...
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6401863 |
Multi-purpose portable davit anchoring system
A new multi-purpose portable davit anchoring system is provided, having a sectional vertical support mast which comes apart for compact stowage and is easily reassembled. The support mast...
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6338175 |
Movable safety tunnel for use during bridge maintenance
A movable safety tunnel rides on parapets within a bridge. The safety tunnel is locked in place in a respective section of the bridge while maintenance or other operations are performed on that...
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6321872 |
Support davit arm for retractable fall proctection lanyard
The present disclosure sets forth a safety device for scaffolding so that workmen can climb up or down on the exterior of the scaffolding in safety. The apparatus includes an outwardly extending...
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6264001 |
Scaffolding hanger
A scaffolding hanger is described. The invention is a refinement of scaffolding hangers used to support catwalks and recording equipment for use on television and film production sets. The hangers...
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6227330 |
Support structure for suspending a work surface below a girder
A support structure for moveably suspending a work surface from the underside of a bridge includes at least a first clip mounted on each lower web of a pair of parallel bridge girders, a track...
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6186275 |
Basket transportable by helicopter for use on elevated cables or installations
A basket removably attachable to a support arm extending laterally outwardly from a helicopter, comprises a frame structure having a bottom support surface and a top surface joined together in an...
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6170106 |
Movable safety tunnel for use during bridge maintenance
A movable safety tunnel rides on parapets within a bridge. The safety tunnel is locked in place in a respective section of the bridge while maintenance or other operations are performed on that...
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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...
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6079517 |
Power driven tree stand
A power driven tree stand including an elevator assembly having a pair of parallel primary rails and a pair of parallel secondary rails. A primary axle couples the primary rails and a secondary...
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6009979 |
Outside up-down elevator
An outside up-down elevator, designed to be smoothly and safely raised without an initial downward movement when the outside up-down elevator is restarted in an ascending direction after it is...
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5979602 |
Personal mini-hoist
A hoist is provided that aids in construction and/or maintenance tasks at elevated heights. The hoist is equipped with a centrally located stabilizer through which a steel cable connected to an...
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5908084 |
Lifting and raising device
A raising and lifting device comprises a shank member and an elevating device. The shank member has a first leg with a threaded portion for threaded attachment to a tree or similar structure; a...
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5868217 |
Suspended work platform
A new suspended work platform for providing a platform for working on projects that can be raised out of the way when not in use. The inventive device includes a support structure, a platform...
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5845739 |
Suspension support device for an outer wall working machine
A suspension support device provided movably on the upper surface of a building for suspending, by means of ropes, an outer wall working machine having fitting and moving members which can be...
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5839532 |
Vacuum wall walking apparatus
A vacuum wall walking apparatus includes an annular body frame, a plurality of leg mechanisms extending downward from the body frame, and a plurality of suction cups attached to fore ends of the...
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5713430 |
Device for treating exterior surfaces for structures
A device for vertical as well as horizontal snapling along and across an exterior surface of a structure such as a building comprising a substantially horizontal guiding member being secured onto...
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5688323 |
Spray containment and enclosure assembly
A spray containment enclosure assembly for use during the spraying operation on a work surface to prevent escape of airborne particles to the environment. The assembly includes a support arm, a...
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5682961 |
Skyrise window panel installation assembly
A skyrise window panel installation assembly including an heavy duty cable structured to extend down a side of a skyrise and be securely anchored at a point above an installation location. The...
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5667035 |
Overhead platform elevation device
An overhead platform elevation device for moving objects between a lower level of a building structure and an overhead storage space is provided including a rectangular platform having a base plate...
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5603488 |
Rail attachable rescue frame for rail bridges
A rail bridge rescue frame comprises three elongated legs having upper and lower ends. The upper ends are secured to a head assembly so as to universally pivot with respect thereto. Two of the legs...
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5498011 |
Lifeline retrieval device
A self contained portable device for use on the roof of a building for retrieving a lifeline from along the side of the building. A motor and drum drive assembly is mounted on a movable cart. An...
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5494132 |
Side-loading suspension frame and ladder assembly for maintenance of energized power transmission lines
A frame and ladder assembly which includes an electrically conductive frame that is provided to engage two, generally parallel, aerially suspended, transmission conductors of a phase bundle and to...
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5431248 |
Confined space lowering and retrieving apparatus
Apparatus for use, in conjunction with a fall arrester or load winch means, when servicing a closed vessel having a top or side manway. The apparatus being adaptable for either exterior or interior...
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5427199 |
Self-propelled work platform and containment enclosure
A moveable, rigid enclosure having a work platform enclosed therewithin and which is sealed against a work surface. A negative pressure is applied to the interior of the enclosure. The rigid...
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5423398 |
Mobile support device for window washers and the like
A movable support device for supporting a window-washer along a side wall of a building for cleaning windows. The device has a foldable framework that can be folded into a compact position for ease...
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5394956 |
Suspended tender box
A tender box adapted for use with a crane or other hoist device for providing an elevated working area. The tender box includes a frame and a platform with upper and lower decks. The lower deck...
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5368124 |
Device suspending a working cage
A device for suspending a working cage includes an arm, a swivel arm mounted rotatably horizontally to the end portion of the arm, a first sheave mounted rotatably horizontally to the arm at a...
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