Operating Means On Platform Patents (Class 182/148)
  • Patent number: 9751724
    Abstract: A device for conveying a person from a first to a second level, in particular a stair lift, which includes a rail (9) which extends between said first and said second level, a frame (3) which is designed to engage the rail in such a manner that it can be moved along the rail, and wherein the frame is configured to move along the rail, and a carrier (4) on which the person can seat himself, in particular a chair, wherein the device is further provided with a safety device which includes a central processing unit and a wireless communication network designed to communicate status information on components of the device and/or objects in the vicinity of the device to the central processing unit, and wherein the processing unit is designed for deciding, on the basis of the communicated status information, whether or not the frame is to be moved along the rail.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 5, 2017
    Assignee: Otto Ooms B.V.
    Inventor: Andre Ooms
  • Patent number: 9701525
    Abstract: The elevating lift includes a stabilizer base with extendable legs to provide minimum to maximum stability during use and transport. A lift system is fixed to the stabilizer base, and a platform assembly is mounted to the top of the base to be selectively raised or lowered by the lift system. The lift system utilizes a plurality of telescoping cage assemblies interconnected to extend or retract relative to each other. A drive assembly with an extendable lift mast is mounted to the stabilizer base to act on the cage assemblies to raise or lower the same. A drive train coupled to the telescoping cage assemblies enables relative extension and retraction of the cage assemblies. An adjustable guardrail is mounted to a platform of the platform assembly to provide safety for the user.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: July 11, 2017
    Inventors: Kan Cui, Margaret C. Liu, Samuel K. Liu
  • Patent number: 9505596
    Abstract: A mast lift includes a base and a telescoping mast coupled with the base and extending upward from the base. The telescoping mast has a support section fixed to the base and a movable section movably connected and displaceable relative to the support section between a retracted position and an extended position. A top cap is secured to the movable section, and a platform is supported by the top cap and the movable section. A gas strut acts between the support section and the movable section and biases the movable section toward the extended position. A threaded driving rod is connected between the top cap and the base and extends through a fixed nut assembly.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: November 29, 2016
    Assignee: JLG INDUSTRIES, INC.
    Inventors: Geoffrey George Campbell, Jason James Watson, Mark Nathan Spaile
  • Patent number: 9297173
    Abstract: A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: March 29, 2016
    Assignee: DAYTON SUPERIOR CORPORATION
    Inventors: Robert A. Spindler, Robert J. Flathau
  • Patent number: 9233819
    Abstract: An early warning system includes monitoring of the hydraulic pressure used to power the hydraulic motor used to raise a man lift during operation, and providing a prognostication algorithm coupled to the output of the sensor to predict based on data from the sensor when there will be a catastrophic failure of the lift.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: January 12, 2016
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Ronald E. Wagner, Robert A. Lingis
  • Patent number: 9027710
    Abstract: A surgeon lift comprising a base, wheels attached to the base, each wheel comprising a locking mechanism, a cylinder supported on the base, a platform operatively connected to the cylinder, a lifting mechanism for adjusting the height of the platform relative to a horizontal surface, a connector for operative attachment of the surgeon lift to a surgical table, the surgical table comprising an assembly comprising a power source for receiving the connector, and one or more controllers for automatically controlling the position of the lift relative to the surgical table in the x, y, and z dimensions.
    Type: Grant
    Filed: August 29, 2009
    Date of Patent: May 12, 2015
    Assignee: Abacus Innovations, Inc
    Inventors: Miriam Machovic Basic, Howard S Mellin, Faranak Sarbaz
  • Patent number: 8985275
    Abstract: 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 stability of the lift. The support base includes a plurality of legs that extend outwardly with each of the legs having an adjustment member with a pad that engages a ground surface. As the adjustment member is adjusted downwardly with respect to the leg, a first engaging member connected to the adjustment member is elevated upwardly to engage a second engaging member thereby releasing a corresponding finger member attached to the support platform from the support base. Once all of the legs are supporting a minimum amount of weight, all of the finger members are released from the support base thereby allowing elevation of the support platform.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: March 24, 2015
    Assignee: Reechcraft, Inc.
    Inventors: Jason M. Solhjem, Shane L. Nickel
  • Patent number: 8944217
    Abstract: A suspension work platform hoist system for raising and lowering a work platform is provided. The system incorporates at least one hoist attached to the work platform and in electrical communication with a hoist control system that may have a data transmitter to transmit data to a remote location, a data receiver to receive data from the remote location, and/or a monitoring and diagnostic system to monitor and record at least one of a plurality of operating characteristics of the hoist. The hoist control system may also include a GPS tracking device that transmit a hoist location and may prevent operation of the motor if the hoist location is not in an authorized area of operation. The hoist control system may further include a safety lock out system that requires authentication of an operator prior to the hoist control system causing movement of the hoist system.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: February 3, 2015
    Assignee: Sky Climber, LLC
    Inventors: George M. Anasis, Robert E. Eddy, Gary E. Ingram, Joan-Francois De Smedt, Hui Li
  • Publication number: 20150008073
    Abstract: A safety device for an aerial lift having a basket with controls which permit an operator standing in the basket to manoeuvre the basket. The safety device comprises an alarm, a switch activation device proximate to the controls and two solenoid operated relays, one connected with a normally-closed manually operable emergency switch means which is operable to cut electrical supply and prevent further movement of the basket, and one connected with a foot operable safety switch, which must be held closed by an operator to activate the controls. Each relay is held in a closed condition (switch on) unless caused to change to an open condition (switch off) to cut electrical supply. The relays are controlled by a programmable control box connected to the switch activation device, foot switch and alarm. The control box causes the alarm to operate in accordance with the condition of the foot operable safety switch.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 8, 2015
    Applicant: BLUESKY SOLUTIONS LIMITED
    Inventors: Paul Cummings, Kevin Gale
  • Patent number: 8863899
    Abstract: 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 stability of the lift. The support base includes a plurality of legs that extend outwardly with each of the legs having an adjustment member with a pad that engages a ground surface. As the adjustment member is adjusted downwardly with respect to the leg, a first engaging member connected to the adjustment member is elevated upwardly to engage a second engaging member thereby releasing a corresponding finger member attached to the support platform from the support base. Once all of the legs are supporting a minimum amount of weight, all of the finger members are released from the support base thereby allowing elevation of the support platform.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: October 21, 2014
    Assignee: Reechcraft, Inc.
    Inventors: Jason M. Solhjem, Shane L. Nickel
  • Patent number: 8851236
    Abstract: 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 assembly. The lockout assembly includes a retractable dog that is movable between an engaged position and a disengaged position. The lockout assembly may include a dog release device that operates both manually and automatically to move the retractable dog from the disengaged position to the engaged position. Automatic operation of the dog release device is triggered when the working surface experiences a tilted condition. A dog emergency release device may be provided to manually move the retractable dog to the disengaged position in the event of a malfunction. The lockout assembly may include a lockout assembly locking device that allows a portion of the lockout assembly to fold up and move the retractable dog to the disengaged position.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 7, 2014
    Assignee: Sky Climber, LLC
    Inventors: Brent Burchfield, Robert E. Eddy
  • Patent number: 8763757
    Abstract: A ladder climbing apparatus is provided for use with a ladder having a plurality of rungs. The ladder climbing apparatus includes a frame, a prime mover mounted to the frame and a power supply electrically connected to the prime mover. A pulley system is mounted to the frame, and is mechanically connected to the prime mover. At least two drive belts are configured so that each of the drive belts pass around the pulley system, and the drive belts are connected to the prime mover by the pulley system. A plurality of gripper elements are attached to each of the drive belts. The ladder climbing apparatus is configured so that a portion of the plurality of gripper elements are in contact with at least four rungs of the ladder during an ascent or descent, so that weight is distributed over the at least four rungs of the ladder.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: July 1, 2014
    Assignee: General Electric Company
    Inventor: Dustin Cory Zwirn
  • Publication number: 20140166399
    Abstract: A stepless ladder is provided that may comprise a frame adapted to support the weight of a user, a track attached to a portion of the frame, an escalating member attached to the track, the escalating member for supporting the weight of the user, and an escalating means adapted to raise and lower the escalating member along the track.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 19, 2014
    Inventor: Thomas G. Duff
  • Patent number: 8733509
    Abstract: A suspension work platform hoist system powered by an input power source for raising a work platform on a rope. The system includes a hoist having a motor that drives a traction mechanism designed to cooperate with the rope, and a reactive power reducing input power system in electrical communication with the motor and the constant frequency input power source. The reactive power reducing input power system includes an AC-DC converter and a regulator system, wherein the regulator system is in electrical communication with a DC-AC inverter that is in electrical communication with the motor. The system may include an isolation system to electrically isolate the DC-AC inverter from the motor when the DC-AC inverter is not transmitting power to the motor. The system may accept multiple alternating current voltage sources including both single phase and three phase sources.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: May 27, 2014
    Assignee: Sky Climber LLC
    Inventors: James Bonanno, Robert E. Eddy
  • Patent number: 8706363
    Abstract: A system for modifying a boundary of operation of a machine has a change in terrain sensor system. A controller determines a change in terrain based at least in part upon a change in terrain signal. If the change in terrain exceeds a threshold, the controller modifies the boundary of operation of the machine. A method is also provided.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: April 22, 2014
    Assignee: Caterpillar Inc.
    Inventors: Kenneth L. Stratton, Troy K. Becicka, Michael Taylor, Thandava K. Edara
  • Patent number: 8627925
    Abstract: The present invention generally relates to work platforms, and, more particularly, to a work platform for use with a lift truck to elevate personnel safely and conveniently.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: January 14, 2014
    Assignee: Vestil Manufacturing Corporation
    Inventor: Thomas Webster
  • Publication number: 20130319792
    Abstract: Methods, systems and apparatuses for providing high electrical resistance for an upper control assembly (including control handles) of an aerial lift are provided through an isolation member that is integral to the upper control assembly and interposed between fluid lines in the control assembly and a set of fluid conduits that extend from the control assembly towards other portions of the aerial lift. The isolation member is a dielectric element that comprises a manifold that is made of material that is substantially electrically non-conductive, and that has a plurality of through-holes or hoses configured to allow hydraulic fluid to flow through the isolation member into and out of the fluid lines and conduits. These methods, systems and apparatuses are preferably used in upper control assemblies of aerial platforms that can carry one or more operators in order to prevent such operators from electrocution when controlling the lift.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 5, 2013
    Inventors: James Randall Christian, Andrew Keith Palican
  • Publication number: 20130206505
    Abstract: An emergency rescue system for installation on tall buildings comprising an especially designed vertical rail on which a cab module moves up and down, propelled by a lightweight motor. The cab can hold over 1,000 pounds (e.g. six to seven persons). By itself, the cab weighs about 200 pounds and can be operated by a single person, is capable of moving very quickly, and preferably utilizes a small gasoline propelled engine.
    Type: Application
    Filed: January 23, 2013
    Publication date: August 15, 2013
    Inventor: Julien Tremblay
  • Patent number: 8505688
    Abstract: 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 prevents the lift system from running beyond a fully lowered position and that prevents the lift system from running if the platform is hung up, and an emergency brake. The lift system is safe and lightweight and is effective for controlling a position of the work platform on the mast.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: August 13, 2013
    Assignee: JLG Industries, Inc.
    Inventors: Geoffrey George Campbell, Hugh Lithgow Stark, Alexander (Sandy) McKechran Hardie McNeil, Frank Fornasari
  • Patent number: 8434594
    Abstract: A highly stable rotating platform with a base, a roller deck assembly on top of the base, and a shooting deck coupled to the roller deck via leg assemblies. The leg assemblies contain two vertical members with an angled cross member between the vertical members providing strength and stability. Bi-directional, unrestricted rotation of the roller deck assembly and shooting deck (in an unlimited number of degrees—e.g. multiple rotations) is accomplished by wheels in the roller deck which rotate around, and to the outside of, a safety guide attached to the base. The wheels may protrude through the top of the roller deck permitting the operator to precisely, easily, and smoothly rotate the roller deck and shooting deck by only moving his/her foot on the protruding wheel thereby not substantially changing their position relative to the shooting deck. The wheels may also be cambered and/or crowned to add lateral stiffness.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: May 7, 2013
    Assignee: Waterloo Outdoor Products
    Inventor: Charles D Zinsmeyer
  • Patent number: 8418810
    Abstract: 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 assembly includes a sub-assembly built in a triangular shape. The foldable floor assembly and the collapsible cage assembly are connected to the triangular sub-assembly portion of the support frame assembly.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: April 16, 2013
    Assignee: Barr Fabication LLC
    Inventor: Hugh C. Barr
  • Publication number: 20130081352
    Abstract: A system useful for dressing out or performing maintenance or other work on a structure in a vertical position includes an elevator system emplaced around the perimeter of the structure, the elevator system including at least three elevators, each having an elevator mast and an elevator cab, the elevator masts interconnected such that the elevator system is freestanding; a control station for controlling and maintaining the elevation of the elevator cabs; a scaffolding/platform system attached to the elevator cabs and providing a work surface that may travel to an elevation proximate an upper portion of the structure, the elevation of work surface controllable using the control station and determined by the elevation of the elevator cabs; the elevator cabs being positionable at various elevations to allow for work to be performed on the structure. The systems may be used for construction, modification, and repair of various vertical structures.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 4, 2013
    Applicant: CHICAGO BRIDGE & IRON COMPANY
    Inventors: William Owens, Don Baugh
  • Publication number: 20130075196
    Abstract: A storage and retrieval apparatus for storing loads in and for retrieving loads from storage locations on a rack, in particular a high-bay rack, has a displaceable base body which has a support structure on which a vertically displaceable load-carrying is mounted. The storage and retrieval apparatus also has a personnel platform which is mounted on the base body. The invention, the personnel platform is vertically displaceable independently of the load-carrying.
    Type: Application
    Filed: March 23, 2012
    Publication date: March 28, 2013
    Applicant: GaUp GmbH
    Inventors: Matthias UPMEYER, Andreas Gartemann
  • Patent number: 8403112
    Abstract: A suspension work platform hoist system having reduced reactive power to produce a hoist system power factor of at least 0.95 when operating at a steady state full-load condition as the motor raises the work platform. The hoist system power factor takes into account all the power consuming devices of the suspension work platform hoist system as well as a suspended conductor system that connects the constant frequency input power source to the hoist, which is often in excess of several hundred feet. The hoist system power factor may be achieved by incorporating a reactive power reducing input power system into the suspension work platform hoist system. The reactive power reducing input power system decreases the magnitude of the reactive power of the motor producing a high hoist system power. The reactive power reducing input power system may include an AC-DC converter and a regulator system in electrical communication with a DC-AC inverter that is in electrical communication with the motor.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 26, 2013
    Assignee: Sky Climber LLC
    Inventors: James Bonanno, Robert E. Eddy
  • Patent number: 8333263
    Abstract: This implement attaches to the hydraulic system of a front-end loader for a tractor or similar vehicle. It has two planar surfaces, a deck and a back, that are fastened together at an approximately 90 degree angle. The deck is constructed primarily of wooden or synthetic boards or sheets, supported below or above by two or more steel angle irons or channel irons bolted to the boards or sheets. The back consists of a similar combination of boards or sheets, irons, and bolts, with a grill or strips possibly replacing some boards or sheets in the upper part. Each deck support is fastened to a back support using one or two steel braces or gussets, bolted or welded to the supports. Two steel yokes are fastened to the back, suitable for attaching the carrier to the front-end loader hydraulics. The carrier can be lifted and tilted by the front-end loader system, just as the system would do with its normal bucket attachment.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: December 18, 2012
    Inventor: William Edward Wright
  • Patent number: 8316994
    Abstract: 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 vertical guide, which is secured to the substantially vertical structure by any suitable connecting means. A carriage is movably attached to the vertical guide, and a platform, which supports the load, is attached to the carriage. The carriage is raised and lowered along the vertical guide by a suitable drive mechanism, whereby the load, supported on the platform, is raised and lowered along the vertical guide. Preferably, the drive mechanism for raising and lowering the carriage comprises a DC motor, powering a gear unit that is operatively connected to a sprocket, with the whole drive mechanism attached to the carriage. A sprocket engaging chain is attached to a surface of the vertical guide, with the chain extending the length of the vertical guide. A battery on the platform powers the DC motor.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: November 27, 2012
    Assignee: Elevated Technologies LLC
    Inventors: William J. Rands, Michael S. Schumacher
  • Patent number: 8292039
    Abstract: A lift system is coupled between a work platform and a mast on a mast lift. The lift system includes at least one lifting rope connected between the work platform and the mast via an idler roller and a hoist drum connected to the work platform. The idler roller is displaceable between an engaged position and a disengaged position based on an amount of tension on the lifting rope. A spring is connected to the idler roller and urges the idler roller toward the engaged position. A carriage latch assembly includes a carriage latch hook coupled with the idler roller and a pin secured to the mast. When the idler roller is disposed in the engaged position, the carriage latch hook is engageable with the pin.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: October 23, 2012
    Assignee: JLG Industries, Inc.
    Inventors: Geoffrey George Campbell, Hugh Lithgow Stark, Alexander McKechran Hardie McNeil, Frank Fornasari
  • Patent number: 8056677
    Abstract: This lift system serves as a powered ladder having a small footprint. The system is divided into two subchasses with a mast fixedly attached to a first subchassis for support of a liftable platform which may carry a human operator. Maneuverability is accomplished by a virtual articulating joint between the two subchasses. The joint comprises hydraulic cylinders operating in conjunction with wheel struts to form a three-point support. Articulation enables the lift system to be adjusted on sloped or uneven terrain to maintain the mast in a vertical orientation. One use of the lift system is to carry a fruit picker into an orchard or vineyard and to position the picker to work efficiently. The lift system may carry a robot and may be controlled either locally or remotely.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: November 15, 2011
    Assignee: Roberts Equipment, Inc.
    Inventors: Roy Roberts, Fred K. O'Brien
  • Patent number: 8016074
    Abstract: A platform for an aerial lift enables unobstructed access to a work area adjacent the platform. The platform includes a floor structure with front and rear sides and ends, and a safety rail disposed along at least the front side. The safety rail includes an entry gate. A lift gate is pivotably attached to the safety rail and pivotable between a closed position and an open position. The lift gate includes a gate rail extending along the rear side of the floor structure and a pair of lift rails connected between the gate rail and the safety rail. The gate rail is pivotable relative to the lift rails between an extended position and a retracted position. In this manner, the lift gate can be raised without the gate rail impacting the work surface.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: September 13, 2011
    Assignee: JLG Industries, Inc.
    Inventors: Phillip John Black, Christopher A. Haught, Ignacy Puszkiewicz
  • Publication number: 20110198154
    Abstract: A step stool includes an inner frame, an outer frame, an actuator, and a coupler. The inner frame includes two inner pillars, and the outer frame includes two outer pillars attached to a platform near opposite ends of the platform and configured to receive the two inner pillars. The actuator is coupled to one of the two inner pillars and one of the two outer pillars, and is operable to raise the outer frame relative to the inner frame. The coupler couples the two outer pillars to each other to evenly lift the opposite ends of the platform when the actuator raises the outer frame.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 18, 2011
    Inventor: Jerry Dean Worley
  • Publication number: 20110180349
    Abstract: This order picker (2) for preparing orders comprises a motor-driven mobile chassis (4), a platform, elevator means (10) for elevating the platform relative to the chassis (4), a load support tray (200) for supporting loads in the vicinity of the platform, and a safety guardrail around the periphery of the platform. The tray (200) is secured to a portion (150, 160) of the guardrail that is movable in translation, along a longitudinal axis (X-X?) of the order picker (2), between a first position, in which the moving portion (150, 160) extends to a first distance (d1) from a front edge (124) of the deck of the platform, and a second position, in which the moving portion (150, 160) extends to a second distance from the front edge (124). The first distance (d1) is strictly greater than the second distance. The tray (200) is movable between a first position, in which it extends horizontally above the deck of the platform, and a second position, in which it is folded away in a substantially vertical position.
    Type: Application
    Filed: January 24, 2011
    Publication date: July 28, 2011
    Applicant: HAULOTTE GROUP
    Inventor: Slaheddine BEJI
  • Patent number: 7975807
    Abstract: 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 chains are engaged with sprockets and guide rollers attached to an axle driven by a motor. The orientation and alignment of the sprockets, guide rollers and roller chains provide for a stable elevator car and for a system free of backlash in both directions. The elevator climbing system includes a dampening assembly to control the rate of decent in the event of transmission, motor or other failure. The elevator climbing system may be controlled so that the start and stop of the motor is coordinated with the release and application of a braking assembly. The efficiency of the elevator climbing system may be varied by adjusting the offset between the sprockets and the guide rollers.
    Type: Grant
    Filed: December 24, 2007
    Date of Patent: July 12, 2011
    Inventor: Samuel H. Franklin
  • Patent number: 7909139
    Abstract: The present invention is a powered lift platform including a platform, at least one guide rail section in operative contact with the platform, each of the at least one guide rail sections comprising at least one guide rail and in which a first end of each of the guide rail sections is configured to removably attach to a second end of a second guide rail section. The invention also includes a lift mechanism supported by the platform, a lift guide in operative contact with the lift mechanism and attached to the upper portion of the upper guide rail, a power supply to operate the lift mechanism. In a preferred embodiment, at least one wheel is operatively attached to the powered lift platform. Also presented is a method for securing the powered lift platform to a columnar-like support. Also presented is an extendable standoff.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: March 22, 2011
    Inventors: Lewis J. Blue, William E. Meier
  • Patent number: 7857097
    Abstract: An apparatus comprising a frame scaffold with a mechanically operated sliding support, as well as methods of assembling, using and disassembling a frame scaffold using the sliding support are disclosed. The apparatus provides for at least one individual to vertically ascend and/or descend along the perimeter of frame scaffold by mechanical operation. The operator of the apparatus is in close proximity to the scaffold. The apparatus does not require the support of an additional structure (i.e., it is self-supporting). The apparatus provides improved safety and efficiency in the assembly and disassembly of frame scaffold.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: December 28, 2010
    Inventors: Patrick Evinger, Chris Long
  • Patent number: 7849971
    Abstract: A powered controlled acceleration suspension work platform hoist system for raising and lowering a work platform at a predetermined acceleration. The system incorporates several hoists attached to the work platform and in electrical communication with the motor control system. The motor control system is attached to the work platform and is in electrical communication with a constant frequency input power source and the hoist motors. The motor control system controls the acceleration of the work platform as it is raised and lowered by controlling the hoist motors. The controlled acceleration hoist system also includes a platform control system attached to the work platform that is in electrical communication with the motor control system and the hoist motors. Acceleration control is achieved by converting the constant frequency input power to a variable frequency power supply. This may be accomplished through the use of a variable frequency drive(s).
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: December 14, 2010
    Assignee: Sky Climber, LLC
    Inventors: George M. Anasis, Robert E. Eddy, Gary E. Ingram, Jean-Francois DeSmedt
  • Patent number: 7760497
    Abstract: The hoist control cooling system for preferentially cooling components of a variable frequency drive that is controlling a hoist motor. The cooling system includes an inverter temperature sensor, an ambient temperature sensor, a cooling system controller, an inverter cooler, and an ambient cooler. The inverter temperature sensor measures the temperature of the inverter and generates an inverter temperature signal. The ambient temperature sensor measures the temperature of the ambient air in the sealed control enclosure and generates an ambient temperature signal. The cooling system controller communicates with the inverter temperature sensor and the ambient temperature sensor by receiving the inverter temperature signal, the ambient temperature signal, and generating both an inverter cooling signal, and an ambient cooling signal. The inverter cooling signal controls the cooling of the inverter.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: July 20, 2010
    Assignee: Sky Climber LLC
    Inventors: Robert E. Eddy, Gary E. Ingram
  • Publication number: 20100133043
    Abstract: A platform for an aerial lift enables unobstructed access to a work area adjacent the platform. The platform includes a floor structure with front and rear sides and ends, and a safety rail disposed along at least the front side. The safety rail includes an entry gate. A lift gate is pivotably attached to the safety rail and pivotable between a closed position and an open position. The lift gate includes a gate rail extending along the rear side of the floor structure and a pair of lift rails connected between the gate rail and the safety rail. The gate rail is pivotable relative to the lift rails between an extended position and a retracted position. In this manner, the lift gate can be raised without the gate rail impacting the work surface.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 3, 2010
    Inventors: Phillip John Black, Christopher A. Haught, Ignacy Puszkiewicz
  • Publication number: 20100051386
    Abstract: A surgeon lift comprising a base, wheels attached to the base, each wheel comprising a locking mechanism, a cylinder supported on the base, a platform operatively connected to the cylinder, a lifting mechanism for adjusting the height of the platform relative to a horizontal surface, a connector for operative attachment of the surgeon lift to a surgical table, the surgical table comprising an assembly comprising a power source for receiving the connector, and one or more controllers for automatically controlling the position of the lift relative to the surgical table in the x, y, and z dimensions.
    Type: Application
    Filed: August 29, 2009
    Publication date: March 4, 2010
    Inventors: Miriam Machovic Basic, Howard S. Mellin, Faranak Sarbaz
  • Patent number: 7631730
    Abstract: A powered controlled acceleration suspension work platform hoist system for raising and lowering a work platform at a predetermined acceleration. The system incorporates several hoists attached to the work platform and in electrical communication with the motor control system. The motor control system is attached to the work platform and is in electrical communication with a constant frequency input power source and the hoist motors. The motor control system controls the acceleration of the work platform as it is raised and lowered by controlling the hoist motors. The controlled acceleration hoist system also includes a platform control system attached to the work platform that is in electrical communication with the motor control system and the hoist motors. Acceleration control is achieved by converting the constant frequency input power to a variable frequency power supply. This may be accomplished through the use of a variable frequency drive(s).
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: December 15, 2009
    Assignee: Sky Climber, LLC
    Inventors: George M. Anasis, Robert E. Eddy, Gary E. Ingram, Jean-Francois DeSmedt
  • Publication number: 20090260920
    Abstract: A safety device for an aerial lift (10) having a basket (20) with controls (23) which permit an operator to manoeuvre the basket (20), and a foot operable safety switch (24) which activates the controls (23), the safety device comprising an auxiliary safety switch (24) operated by a trip cord (27) arranged proximate to the controls (23) and which is connected in series with the foot safety switch (24) so that in the event that the cord is distorted the auxiliary switch (26) prevents activation of the control panel (23) and may additionally operate an alarm.
    Type: Application
    Filed: February 26, 2009
    Publication date: October 22, 2009
    Inventor: Paul Cummings
  • Patent number: 7546902
    Abstract: Accordingly, embodiments of the inventive disclosures made herein comprise a personnel lift apparatus for raising or lowering a standing person between two or more elevations or from a base elevation to a raised elevation. A moveable lift platform rides within a track provided on a pair of substantially upright side rails. The platform is connected by a flexible metallic cable to an electrically operated winch. The personnel lift eliminates steps and ladders on recreational items or any equipment requiring climbing.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: June 16, 2009
    Inventor: Larry Victor Schwertner
  • Patent number: 7523809
    Abstract: An elevator car (2) comprises a cover (14; 40) extending over at least a portion of the top surface of the car (24). The cover (14; 40) is mounted on a resilient support (28, 42). The car (2) further comprises means (32; 44) for detecting displacement of the cover corresponding to the weight of a person being applied to the cover. If such displacement is detected, normal operation of the car (2) is prevented.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: April 28, 2009
    Assignee: Otis Elevator Company
    Inventors: Andrés Monzón-Simón, Julián Cabañas Falcón, Fernando Del Rio Sanz, Antonio De Miguel Urquijo, Francisco Luis Sanz Delgado, Herbert Horbrügger, Peter Leo Herkel, Dirk Heinrich Tegtmeier
  • Publication number: 20090078502
    Abstract: A working platform (1) for aircraft maintenance has two chassis (3a, 3b), a working stage (5) and two height-adjustable support means (4a, 4b) connecting the working stage (5) to the chassis (3a, 3b). The working surface of the working stage (5) is assembled from at least two mutually separable segments (_b 5a, 5b, . . . ), wherein a first (5a) of the segments is supported by the first chassis (3a) and the first height-adjustable support means (4a) and a second (5b) of the segments is supported by the second chassis (3a) and the second height adjustable support means (4b).
    Type: Application
    Filed: September 22, 2008
    Publication date: March 26, 2009
    Inventor: Frank Knurr
  • Publication number: 20090071751
    Abstract: The invention is directed to a vertically and horizontally-controlled, retractable aerial platform mountable on the bed of a vehicle for supporting a person or materials. The aerial platform includes a base, at least one support arm, a first support member, a second support member, a platform, and actuation means. The aerial platform may further include a collapsible frame. The aerial platform is vertically and horizontally-controlled, allowing a workman to adjust both the height and extension distance of the platform so that work functions can be readily performed. The aerial platform is portable, compact and suitable for use in a variety of commercial vehicles.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 19, 2009
    Applicant: PERMACORP INDUSTRIES INC.
    Inventors: FRANK SCHMIDT, MANFRED SCHMIDT, NORMAN RUST
  • Patent number: 7383922
    Abstract: A load stopping system for mechanically stopping a load in a relatively slow and controlled manner using rotational and frictional forces. The system includes a glide rod, a guide collar that moves longitudinally over the glide rod, two vertically mounted friction rods mounted on opposite sides of the glide rod, a friction collar that moves longitudinally along each friction rod, and a support platform coupled to each friction collar and to the guide collar. The glide rod includes a spiral fluted vane along its entire length upon which the guide collar rides when a force is placed on the support platform. The friction rod and collars use friction to control the movement of the support platform along the direction of travel.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: June 10, 2008
    Inventors: William H. Richey, John Bolding
  • Patent number: 7370725
    Abstract: A device supported by a ground surface and a structure for at least one of elevating and descending a user. The device includes a first guide rail having a first channel extending along a length thereof and a second guide rail having a second channel extending along the length thereof. At least one connector connects the first guide rail with the second guide rail at a predetermined location along a length thereof so that said first channel and said second channel face inwards towards each other. A platform for supporting the user having a predetermined amount of weight is connected within each of the first and second channels and between the first guide rail and second guide rail. The device further includes means for moving the platform along the length of each of the first channel and the second channel.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: May 13, 2008
    Inventor: Gary R Dornfeld
  • Patent number: 7281609
    Abstract: An elevator car includes a cross-head portion and a balustrade mounted to the cross-head portion. The balustrade is moveable from a retracted position for normal operation of the car to a deployed position for inspection operation of the car. The car further includes a second retractable safety device also mounted to the cross-head for preventing or limiting movement of the car. The balustrade includes at least one control for operating the elevator car during the inspection operation, the control being arranged so that the control cannot be operated when the balustrade is in the retracted position.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: October 16, 2007
    Assignee: Otis Elevator Company
    Inventors: Fernando Del Rio Sanz, Andres Monzon, Antonio De Miguel Urquijo, Jose Godino, Julián Cabañas Falcón, Jose Caballero
  • Patent number: 7222697
    Abstract: An elevator is described, comprising a first series connected pulley set installed in a fixing frame, a carriage located below the first series connected pulley set, a second series connected pulley set installed on the top of the carriage, a rotary wheel installed in the carriage and a steel rope. The steel rope connects the first series connected pulley set, the second series connected pulley set and the rotary wheel, so that the gravity load of one pulley set can belowered to decrease the pulling force of the steel rope to enhance the safety of the elevator.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: May 29, 2007
    Inventor: Chih Chen
  • Patent number: 7004288
    Abstract: The invention provides a lift apparatus for use with a ladder having two spaced upright stringers and a plurality of horizontal rungs bridging the stringers and spaced at a distance vertically from one another. The lift apparatus comprises a frame, a prime mover mounted on the frame and having a rotatable output shaft, at least one pair of sprocket systems space apart vertically from each other. At least one of the sprocket systems is operatively coupled with the output shaft of the prime mover. Endless driving force transmitting mechanism can pass around the pair of the sprocket systems. Controller is provided for controlling the prime mover in such a manner as to selectively rotate the output shaft thereof in forward or reverse direction, or stop it. Operating mechanism is provided for causing a plurality of gripper elements to be engaged with the corresponding rungs of the ladder.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: February 28, 2006
    Assignee: Ryo Keiso Ltd.
    Inventors: Toshiyuki Araki, Junichi Morishita, Tsuyoshi Kawazoe
  • Patent number: 6702064
    Abstract: A lifter includes a beam tiltably secured on top of an elevator for supporting an object to be elevated. A base is secured on top of the elevator, and a seat secured to the beam and having one end rotatably secured to the base with a shaft. A bracket and a spring may resiliently support the shaft in the seat. A plate is secured on the seat, a board secured to the beam and rotatably secured on the plate, and a spring biased pin may position the board to the plate at the required angular position. One or more posts and arms may be attached to the beam for supporting the object.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: March 9, 2004
    Inventor: Chin Piao Huang