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6810995 |
Portable stairs with adjustable landing platform height
An adjustable stair and platform system. The apparatus includes a set of stairs which is affixable to a platform at a first height or alternately at a second height. Both the platform unit and the...
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6810994 |
Actuator for camming devices
A device to retract cams of spring-loaded camming devices (SLCD) used in rock climbing protection. The device includes a retraction mechanism operable on the SLCD and a control interface to receive...
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6810993 |
Articulated aerial device including an upper boom compensation unit
An aerial lift apparatus unit includes at least a lower boom pivotally interconnected to a transport unit for raising and lowering of the lower boom. An upper boom is pivotally connected to the...
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6808047 |
Escape device
An escape device for allowing a person to escape from a high position to a predetermined landing point. The escape device basically includes: an elastic cord element elastically stretchable to a...
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6808046 |
Body harness
An improved body harness for use during an emergency and for fire fighters, tree trimmers, window washers, mountain climbers and construction workers. A pocket is provided on the front of the...
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6805221 |
Ladder positioning system
A ladder has side rails with rungs and lower eye-bolts extending from the side rails. A bracket is couplable to a building to be painted or maintained with upper eye-bolts. A pair of turnbuckles...
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6805220 |
Safety system to prevent falls
A system for securing a worker to an elevated structure includes a flexible anchor line extendable across the structure, hooks at opposite ends of the flexible anchor line for engaging the...
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6804830 |
Full body harness for fall arrest
The present invention provides a full body harness which can include curved webbing, a spreading back pad and/or leg buckles which improve the comfort, use and performance of the harness....
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6803933 |
Systems and methods for dot gain determination and dot gain based printing
The present invention generally provides methods and systems for printing. A statistical learning system is used to determine dot gain.
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6802483 |
Gun rest and clamp
A gun rest made of a high-strength, highly durable plastic, such as ABS, is attachable to a tree stand. First and second U-shaped members have a mechanical element to permit its attachment to a...
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6802393 |
Foldable ladder
A foldable ladder includes a back supporting frame and a front supporting frame, a plurality of foot supporters provided on the front supporting frame in a pivotally foldable manner, a plurality of...
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6802392 |
Stowing stairway
A stair is pivotable from a lowered position allowing a user to climb the stair from a lower level to an upper level, into a stowed position wherein the stair is lifted from the lower level so that...
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6802391 |
Aircraft non-ambulatory/ambulatory boarding and off-loading system
The invention is a loading system, which is a combination adjustable height stairway and a landing platform at one end that can be elevated to the level of the aircraft loading door and a lifting...
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6802390 |
Safety line anchorage methods and apparatus
An anchorage assembly ( 100 ) is interconnected between a support structure ( 90 ) and a safety line ( 160, 161 ). The anchorage assembly ( 100 ) routes the safety line ( 160, 161 ) about a corner...
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6799741 |
Evacuation slide having trapezoidal outline
An inflatable evacuation slide for emergency evacuation of an aircraft comprises a pair of main support tubes supporting a flexible sliding surface. The main support tubes taper from a widest point...
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6799660 |
Step ladder device
A step ladder device for balancing and stabilizing a ladder upon most any surface. The step ladder device includes a ladder having pairs of side rails and rung members being attached to the pairs...
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6799659 |
Tree stand with quick connect attachment
A tree stand which is easily securable to a tree. The tree stand includes a platform and first and second laterally spaced support arms, each of the arms having a front end and a back end, the...
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6799658 |
Mobile outrigger scaffolding system
Specially designed plates and/or mounting apparatus against and on the standard vertical column used in construction of office structures or other structures including bridges. Each set of plates...
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6793258 |
Device and method for gripping a handrail
A device and method for gripping a handrail or other object having a top and a bottom surface. The device includes a handle for gripping by a user. A fixed member is coupled to the handle for...
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6793041 |
Ladder leveling device
A device for leveling a ladder on unlevel or uneven surfaces that includes a wedge shaped support member and features for safely retaining a ladder on a sloped top surface of the support member....
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6793040 |
Stand for mounting on and orbiting about columnar member
A stand includes a track mounted to a columnar member such as a tree trunk. The track substantially or completely encircles the columnar member. A seat is mounted to the track for movement thereon....
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6793039 |
Submerged water activity platform
A submergible activity platform for attachment to an associated structure on a body of water is disclosed. The activity platform for supporting persons engaged in water activities includes a...
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6793038 |
Method and apparatus for rescuing occupants from high structures using replaceable cable cartridges and dynamic resistance device
A rescue method and apparatus for rescuing or evacuating occupants from high rise buildings or other high structures includes a frame adjacent an escape portion of the high structure; a dynamic...
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6793024 |
Rock drilling rig
A rock drilling rig has a carrier ( 1 ) provided with a service platform ( 7 ) arranged on a service boom ( 6 ). The service boom has a number of relatively movable boom sections ( 33, 36 ). The...
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6792887 |
Portable and stowable step for water-borne vessel
A stowable and extendable step to facilitate entry by a person into a vessel from the water is disclosed. One embodiment comprises a support that may act as a handle and a step, a strap, the lower...
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6789649 |
Anchor clamp
A tube and clamp scaffold system includes a series of anchor clamps which are attached by the workers during erection of the system. The anchor clamps are attached at appropriate positions to ay of...
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6789648 |
Retractable ladder assembly
A retractable ladder assembly for marine applications having a frame and a ladder having a pair of channel members pivotally connected to the frame and extendible there from in a vertical position...
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6789647 |
Escape mechanism for high-rise
An escape mechanism for high-rise includes a safety rail and a safety facility. The safety facility is formed in a frame-like shape with an upper frame and a lower frame being constructed by two...
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6786371 |
Ladder carrying device
The present invention provides for a ladder carrying device that can be used to carry a ladder either over or under a carrier's shoulder. The ladder carrying device of the present invention can be...
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6786302 |
Triple coupler for flexible scaffold system
A coupling apparatus is comprised of three couplers for interconnecting three scaffolding members. The locking devices for the couplers may be of a bolt-and-nut configuration or, advantageously, of...
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6786301 |
Scaffold system
A scaffold system, including a plank; at least one end support having a plank bracket, the plank engaging the plank bracket, the end support having adjustable legs, and the end support having at...
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6786300 |
Step attachment for ladders
A unitary step unit has a generally rectangular main body portion with opposed transverse ends and laterally opposed sides. One end is bent downward and angularly outward with respect to the main...
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6786299 |
Swivel-power scaffold mobilizing device
A novel and unique user-friendly swivel-power scaffold mobilizing device that provides movement in any direction parallel to the ground and rotation about a vertical axis. The device may be...
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6786020 |
Anchor for safety rope
The anchor device includes a ring mounted to a first end of a rod or tube for receiving the end of a safety rope, a mounting for securing the anchor device to a building element, and a locking nut...
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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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6782972 |
Ladder elevator device
An elevator device that is installed on a standard ladder, or for large lifting capacity installation, two or more ladders. In applications using two or more ladders, a base securing device can be...
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6782665 |
Dock unit for maintenance of an aircraft or the like
In a dock unit for maintenance of aircraft there is provided, in addition to an outer support which supportingly engages against a frame disposed parallel to the longitudinal axis of the aircraft...
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6779634 |
Dumb waiter elevating and lowering platform device
An elevating system is provided that includes a platform that may travel up and down a tower through the use of a pair of cables, pulleys mounted at the top of the tower and a low profile motor...
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6779632 |
Adjustable leveling stepladder
An adjustable leveling stepladder is provided with telescopically adjustable support legs that allow it to be positioned on uneven surfaces. A pair of bubble levels that are used to indicate proper...
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6779631 |
Scaffold pick-up device
A scaffold pick-up device having a vertical joint clamp which bridges a vertical scaffold joint to stiffen the bridged vertical joint, and a scaffold lift assembly, which attaches onto the top...
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6779630 |
Rebar stanchion horizontal lifeline fall arrest system
A horizontal lifeline support system for use with a rebar stub or stud extending from a building structure. The system includes a stanchion having an elongated body, the body having a top end and a...
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6779629 |
Rebar anchorage system for horizontal lifeline
A rebar anchorage system for a horizontal lifeline is described as well as the method of installing the same. Preferably, two triangular frames are secured to vertically extending rebar by eight...
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6776260 |
Safety net
A safety net ( 1 ) for an opening ( 11 ), eg. an open stairwell in a construction site, where the safety net ( 1 ) comprises a plurality of straps ( 2 ) in a grid arrangement. The straps ( 2 )...
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6776259 |
Adjustable safety cable
The disclosed safety apparatus for the erection of structure and method for erection thereof comprises a first substantially vertical support, a second substantially vertical support and a...
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6772860 |
Helicopter access platform
A mobile worker platform providing access to the rotor area of a helicopter having outriggers spaced to straddle the helicopter landing gear.
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6771181 |
Crawl to the light emergency exit
The present application provides a new emergency exit system. The system comprises an exit door controlled by an emergency detection system, which includes emergency detection sensors such as a...
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6769515 |
Multi-fold collapsible ladder
A ladder includes a frame and a plurality of folding steps. The ladder includes a step mover coupled to the steps to allow pivotable movement of the step sections relative to the left and right...
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6769514 |
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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6769513 |
Swimming pool ladder
A molded plastic pool ladder of A-frame shape having first and second sides consisting of assembled frame channel rail structures with a ladder slidable between lower and higher positions in one of...
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6767023 |
Tire-mounted step device
A tire-mounted step device for allowing a user to reach into the engine compartment of a vehicle for the servicing thereof. The tire-mounted step device includes a step having a main wall and a...
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