Telescopic Erecting Means Patents (Class 182/69.4)
  • Patent number: 9097033
    Abstract: A tower lifting stand system and method is provided for use in lifting a large structure such as a transmission tower that is used in our power grid. A lifting mechanism engages a structure connected to the tower which work together to lift the tower once the lifting mechanism has been activated. Once the tower is lifted, a vertical extension section can be installed thus lifting the tower, and its associated power lines, vertically a predetermined distance.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: August 4, 2015
    Assignee: Walbridge Equipment Installation LLC
    Inventors: Joseph R. Margevicius, Marvin G. Wasmund, Andrew S. Oliver
  • Patent number: 9068401
    Abstract: A reinforced workover rig mast (40) is disclosed. A top section (60) of the mast (40) telescopes relative to a mid section (44), and includes a scoping cylinder area (72) for receiving a scoping cylinder (90) that may be used to extend and retract the top section (60). A number of external gussets (78) are located within this scoping cylinder area (72) to structurally reinforce the upper section (60). Other reinforcement features are incorporated by the mast (40) as well, including an increased width and depth, along with a reduced vertical spacing between adjacent cross supports (50b, 66b, 74).
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: June 30, 2015
    Assignee: MW INDUSTRIES, INC.
    Inventors: Greg Wiedmer, Thomas Edwin Mau, Robert Eugene Mau
  • Publication number: 20150060199
    Abstract: An order picker has a body section with a pair of ground engaging wheels and a first lift mechanism pivotally mounted to one end of the body section about a vertical pivot and one or more ground engaging wheels is/are provided on the first lift mechanism. A mechanism is provided for pivoting the first lift mechanism relative to the body section whereby the order picker may be steered. An open cab is provided on the body section whereby an operative may have access to stacks on either side of the order picker. The cab is mounted to the body section on a second lift mechanism by which the cab may be raised and lowered with respect to the body section independently of the first lift mechanism. A receptacle onto or into which picked items may be placed, the receptacle is mounted on the cab on the end thereof remote from the end of the body section to which the first lift mechanism is mounted.
    Type: Application
    Filed: March 8, 2013
    Publication date: March 5, 2015
    Inventors: Paul David Overfield, Simon Mark Brown
  • Publication number: 20140332314
    Abstract: The invention relates to a boom lift, including a frame provided with a means for moving on the surface of the ground, a platform, a means for lifting the platform relative to the frame, and a console (8) for controlling, from said platform, the moving means and/or the lifting means. The control console (8) includes two half-consoles (81, 82), each of which is provided with at least one lever (811, 821) or button (812, 822, 813, 823) for manually controlling the boom lift, and arranged on either side of an operator on the platform in a position for using the levers or button with both hands, while the space (V8) located opposite the operator in said position has no control levers or buttons.
    Type: Application
    Filed: December 18, 2012
    Publication date: November 13, 2014
    Applicant: Haulott Group
    Inventors: Christophe Carrillo, Gaëtan Godineau, Slaheddine Beji
  • Patent number: 8833519
    Abstract: A vehicle mounted telescopic boom structure including a stowable jib boom and a stowable extension boom pivotally secured thereto as well as a personnel basket which is secured to the outer end of the extension boom. When the boom structure, jib boom, extension boom and personnel basket are in their stowed position, the personnel basket is stowed on the deck of the vehicle beneath the jib boom and boom structure.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: September 16, 2014
    Assignee: Westchester Capital, LLC
    Inventors: James M. Glazer, Dean H. Smith
  • Publication number: 20140251726
    Abstract: A boom assembly for a lift device includes a plurality of telescoping boom sections. The plurality of telescoping boom sections include a base boom section, a mid boom section, and a fly boom section. The plurality of telescoping boom sections define an inner volume. The boom assembly also includes a push tube coupled to the base boom section and a support member positioned within the inner volume. The support member includes sidewalls having an inner surface and an outer surface. The boom assembly also includes a power track positioned within the inner volume that includes a plurality of movable links, a first supported portion that interfaces with at least one of the inner surface of the support member and a surface of the push tube, and a second supported portion that interfaces with the outer surface of the support member.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Inventors: MacKenzie M. Ditty, Matthew G. Wilson
  • Publication number: 20140202792
    Abstract: The lift for all terrain vehicles has a plurality of telescoping box-shaped frame members, each frame member having top and bottom rectangles made of square tubing, the rectangles being spaced apart by posts at each of the corners. The inner telescoping box-shaped member has a standing platform mounted on the bottom rectangle. A plurality of telescopic support and leveling legs are attached to the outer telescoping box-shaped member. The legs, when extended, provide stability when raising and lowering the standing platform. A plurality of vertically disposed elongated legs extend from the outer telescoping generally box-shaped member, and are adapted for attachment to an ATV or other vehicle.
    Type: Application
    Filed: February 28, 2014
    Publication date: July 24, 2014
    Inventor: ALGER E. STONEBURNER, JR.
  • Patent number: 8776451
    Abstract: An extendible structure which includes an elongated extendible member having elasticity, and a storage part that serves to store the extendible member by winding it up, wherein a tip end of the extendible member can be extended from the storage part in a one-dimensional manner, so that an extendible part thus extended becomes a hollow tubular structure. The extendible member is composed of three divided extendible members so that the extendible part of the hollow tubular structure is divided into three parts, and the individual divided extendible members are constructed such that their tip end portions are joined with one another, and at the same time, their base end portions are wound around individual storage parts, respectively, independently from each other. Surface fasteners are each provided on a side of each of the divided extendible members.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: July 15, 2014
    Assignee: Sakase Adtech Co., Ltd.
    Inventors: Akihito Watanabe, Hiroaki Ito, Toshiyuki Hori, Nobuyoshi Kawabata
  • Patent number: 8413764
    Abstract: A ladder safety device, systems and methods of arresting falls from ladders are provided. The ladder safety device includes a safety guide that extends along the length of an extension ladder. The length of the guide along the length of the ladder extends and contracts in unison with the extension and retraction of the extension ladder, and a tension is maintained on the guide to maintain a load during use of the ladder for climbing.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: April 9, 2013
    Inventors: David A. Cohen, John P. McCarthy, IV
  • Patent number: 8292032
    Abstract: 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 a second position. The platform assembly may be configured to be supported by the support portion when the support portion is in the first position, and further configured to be supported by the support legs substantially independent from the lift mechanism and the vehicle when the support portion is in the second position.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: October 23, 2012
    Inventor: Theodore Fred Knaak
  • Patent number: 8251177
    Abstract: 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 a platform 35. A section 27 of one column 26 is rigidly connected to the chassis and another section 33 of that column to the platform 35. The other column is configured as an extendible ladder 50 one section 51 of which is hinged to the chassis 10 and another section 52 of which is hinged to the platform 35. When the platform is in its lowermost setting, the hinged connections of the two sections 51,52 of the ladder 50 are co-axial so that the ladder may be pivoted to a transit setting. A winch arrangement 39 is associated with column 26 to allow raising and lowering of the platform 35.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: August 28, 2012
    Assignee: Monkey Tower Limited
    Inventor: Alan Watt
  • Publication number: 20120043158
    Abstract: 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 position. A threaded driving rod is connected between the base and the lifting assembly, and a gas strut acts between the base and the lifting assembly and biases the lifting assembly and the platform toward the raised position.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 23, 2012
    Inventors: Geoffrey George Campbell, Jason James Watson
  • Patent number: 7869923
    Abstract: In an excavator equipped with an offset boom, an offset command value generating device of a rotation control device offsets a second boom arranged on a distal end side in a rotation direction relative to a first boom arranged on a proximal end side when an acceleration start judging device judges that a rotation operation is started, and offsets the second boom in a reverse rotation direction when a deceleration start judging device judges that a rotation deceleration operation is started. Accordingly, when a rotation acceleration is performed using a reaction force generated in the offset, clearances between members of a work machine can be contracted in advance in the rotation direction, while when the rotation deceleration operation is performed, these clearances can be contracted in advance in the rotation reverse direction, thereby reducing an impact in the acceleration and deceleration.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: January 11, 2011
    Assignee: Komatsu Ltd.
    Inventor: Tadashi Kawaguchi
  • Patent number: 7845119
    Abstract: A constructional unit comprising: a support frame which is O-shaped in plan bounding an open central region, the support frame including first and second members which are each U-shaped in plan, each member being in the form of a base frame from which extend two side arms; the first and second members having their side arms telescopically engaged to define sides to the open central region of the O-shaped support frame; the telescopic engagement providing for—the spacing of the first base frame from the second base frame to be adjustable over a range of distance; and the temporary securing of the first member to the second member at a predetermined spacing; the base frame of the first member being adapted for location at a first level at a first working location; the second member being adapted, at a position remote from the first member, for location at a second level at a second working location by way of at least one leg pivotably attached at or near one end of the, or each, leg to the base frame of the sec
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: December 7, 2010
    Inventors: Robert David Black, John Alexander Black
  • Publication number: 20100170747
    Abstract: Apparatus for elevating, laterally and rotationally positioning an aerial work platform relative to a support structure such as a mobile vehicle. In one embodiment a platform supporting carriage is mounted for sliding movement along a support beam affixed to a boom and the platform is mounted on the carriage permitting rotation of the platform about a substantially vertical axis. In a second embodiment a four bar linkage is used for longitudinally moving a rotatable platform. One or more powered means may be provided for elevating, leveling and longitudinally and rotationally positioning the work platform.
    Type: Application
    Filed: November 11, 2009
    Publication date: July 8, 2010
    Applicant: California Manufacturing & Engineeing Company, LLC
    Inventor: GARY CROOK
  • Patent number: 7740106
    Abstract: A mobile mount for attachment of a fall arrest system is provided for example for aircraft and includes a base carried on ground wheels and a support which is adjustable in height upstanding from the base and an arm cantilevered over the base. At least one receptacle is mounted on the arm of the support at a position located over the base for attachment to a personal fall arrest system including a harness for one or more persons, with the receptacle, base and support being designed and arranged to receive a loading from the personal fall arrest system sufficient to accommodate a fall of the person from the elevated structure.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: June 22, 2010
    Assignee: Capital Safety Group Winnipeg Ltd.
    Inventor: Jan Vetesnik
  • Publication number: 20100140016
    Abstract: A vehicle equipped with a lifting arm assembly includes a chassis structure with a cabin and a lifting arm assembly fastened on top of the chassis structure so that it turns around a vertical rotating by a rotating base. For folding, the lifting arm assembly is positioned behind the cabin in two positions. In a rescue vehicle the lifting arm assembly also includes at least an arm that can be outstretched to a standby position on top of the cabin. A third arm is fastened to a second arm to rotate in the vertical direction so that in the transport position of the lifting arm assembly the third arm can be turned under the second arm or next to it, and the rotating base is also positioned under the central part of the second arm when the lifting arm assembly is in the transport position.
    Type: Application
    Filed: July 24, 2007
    Publication date: June 10, 2010
    Inventor: Esko Raappana
  • Patent number: 7647659
    Abstract: A telescopic lifter, mainly for height adjustment of a hospital bed, equipped with a drive (4) and including a first extensible part (1) is concentrically arranged. In the first extensible part (1) at least one second extensible part (2) is concentrically arranged. Inside the first extensible part (1) in the area of its upper end (6) a guide (7) is installed. Inside the second extensible part (2) in the area of its lower end (8) a holder (9) is installed. An electric cable (5) is attached to the fixed part (3) and freely passes into the inner space of the first extensible part (1) upwards to the guide (7) and over the guide (7). The electric cable is directed downwards to the holder (9) to which the electric cable (5) is firmly fixed and along the inner wall of the second extensible part (2); the electric cable (5) is directed out of the second extensible part (2).
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: January 19, 2010
    Assignee: Linet Spol. S R.O.
    Inventors: Zbynek Frolik, Miroslav Fejt, Vladimir Kolar
  • Patent number: 7607513
    Abstract: A hand truck having a folding platform attached to a wheeled base. The base having an arrangement of stabilizing bars and feet and vertically extensible masts that raise and lower the folding platform by operation of a motor attached to the base. The platform of the hand truck, when in the extended position, has modular removable railings attached along the perimeter of different platform sections. The platform is collapsible about pivot pins and suspended by chains attached to brackets atop the extensible masts.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: October 27, 2009
    Inventor: Elmo Rojas
  • Patent number: 7543671
    Abstract: A vehicle with a variable-length wheelbase is disclosed. The vehicle of one embodiment has a first body portion coupled to a first set of wheels and a second body portion coupled to a second set of wheels to define a vehicle wheelbase. The first and second body portions are moveable relative to each other in a direction substantially parallel to a longitudinal axis of the vehicle, so as to move the base between extended and retracted positions. When the base is in the retracted position the vehicle's wheelbase has a first length, and when the base is in the extended position the wheelbase has a second length greater than the first length. A boom is pivotally coupled to the base. The boom moves toward a lowered position when the base is moved toward the extended position, and the boom moves toward a raised position when the base is moved toward the retracted position.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: June 9, 2009
    Assignee: Genie Industries, Inc.
    Inventor: James A. Donaldson
  • Publication number: 20090101436
    Abstract: Truss arrangements utilizable in ladder sections of extendible ladder arrangements are described. Also described are ladder arrangements utilizing in the truss arrangements, and methods designed in use.
    Type: Application
    Filed: April 17, 2008
    Publication date: April 23, 2009
    Applicants: Federal Signal - Fire Rescue Group, E-One
    Inventors: Michael J. Burman, Stanley E. Goodson, JR., Jeffrey D. Aiken
  • Publication number: 20080302601
    Abstract: A portable lift assembly that moves between a retracted position and an extended position when operatively connected with a drive mechanism. The portable lift assembly comprises a first telescoping assembly, a second telescoping assembly, a support assembly and a pulley assembly. The first telescoping assembly has a first stationary leg and a first movable leg, the first movable leg being movable with respect to the first stationary leg. The second telescoping assembly has a second stationary leg and a second movable leg. The second movable leg is movable with respect to the second stationary leg, wherein the support assembly slidably engages with the second movable leg. The pulley assembly operatively connects to the first telescoping assembly and to the support assembly wherein the pulley assembly, when activated by the drive mechanism, simultaneously moves the first movable leg and the support assembly from the retracted position to the extended position to raise the platform to an elevated position.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 11, 2008
    Inventor: Andrew Baker
  • Publication number: 20080302602
    Abstract: A mobile hydraulic lift comprises a trailer having a frame configured for towing behind a vehicle. The frame includes a longitudinally extending frame member with telescoping end portions on front and rear ends of the frame member. The front end telescoping portion includes a ball hitch connector and a jackstand for supporting the front end of the longitudinally extending frame member when it is disconnected from the vehicle. The rear end telescoping portion also includes a jackstand. The frame also includes a transversely extending frame member with telescoping end portions on opposing ends of the transversely extending frame member. Each telescoping end portion of the transversely extending frame member carries a wheel.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 11, 2008
    Inventors: Larry Schultz, Darrell Schultz, James Jabas
  • Publication number: 20080185222
    Abstract: A working platform has a ground drive, a platform, a telescoping support unit having one end connected to the ground drive and another end connected to the platform, an adjusting unit for extending and retracting the telescoping support unit for expanding and retracting the support unit, the support unit including support segments which are at least partially nested inside each other, the adjusting unit being assigned to a displaceable support unit segment of the support unit segments.
    Type: Application
    Filed: August 6, 2007
    Publication date: August 7, 2008
    Inventors: Guenther Herrmann, Burkhard Zachewicz
  • Patent number: 6889798
    Abstract: 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 telescopically extensible and retractable boom members that are extended downwardly by action of gravity through opening to a subsurface location. The worker is supported in a stabilized manner during descent, suspension, and retraction of the boom members.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: May 10, 2005
    Inventors: Steven L. Overby, David R. Benjamin
  • Patent number: 6640928
    Abstract: A lightweight, multifunctional, robotic construction aid capable of replacing heavy, dangerous, conventional construction equipment including cranes, manlifts, scissorlifts, scaffolds, and extension ladders. More particularly, the apparatus comprises a base, a lower ladder portion, an upper ladder portion, and a support. The lower ladder portion is pivotably connected to the base and extends therefrom in a first direction. The upper ladder portion is pivotably connected to the lower ladder portion and extends therefrom in a second direction opposite the first direction and includes an access therethrough from the lower ladder portion. The support is capable of bearing the weight of the first and second ladder portions and of fixing the relative positions of the upper ladder portion, the lower ladder portion, and the base.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: November 4, 2003
    Inventor: Hal J. Ridley, Jr.
  • Patent number: 6571914
    Abstract: A lifting apparatus for high-place work which includes a moving supporting leg having a guiding case with opposite open ends and plural walls, guiding grooves attached to said walls, plural elastic strips, a plurality of connecting pieces transversely attached to said elastic strips with the connecting pieces having a proportional number composed of shorter and longer lengths with the longer connecting pieces having fitting grooves on ends thereof, which matingly engage the ends of the shorter connecting pieces. The elastic strips are rotatably wound about respective winding drums disposed on the loading box of a vehicle and driven a driving force originating from the power source of the vehicle such that by unwinding the respective elastic strips an integrated column is formed at a desired elevated high location.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: June 3, 2003
    Inventors: Gye-Seok Lee, Nam-Kyung Kim
  • Publication number: 20020148683
    Abstract: A mobile lift having extendable axes that is capable of switching between front-wheel steer, rear-wheel steer, all-wheel steer, and crab steer without resulting in undesirable tire scrubbing or unfavorable steering geometry. One embodiment provides a mobile personnel lift having a chassis supported by steerable front and rear wheel sets. The steerable wheel sets are mounted on axles that are extendable and retractable. A double-acting hydraulic cylinder is pivotally coupled between each steerable wheel and its corresponding axle for turning the wheel. A microprocessor controls the flow of hydraulic fluid to the hydraulic cylinders. Sensors positioned adjacent to each wheel measure the angular position of each wheel relative to the chassis, and transmit this information to the microprocessor to synchronize the wheels as required to provide the optimum steering geometry for the selected mode.
    Type: Application
    Filed: March 25, 2002
    Publication date: October 17, 2002
    Inventors: James Donaldson, Nelson Wong
  • Publication number: 20020079163
    Abstract: The present invention “Aerial Life Saver Combine” is a multipurpose mobile safety system that is used in relation to work performed on top of any kind of vehicle or on stationary structures where fall safety protection for workers in service, maintenance and construction is required. The uniqueness of this product is that one vehicle can do the job of two or more equipment to protect workers from a fall throughout their entire activity. Several accidents can be avoided by eliminating passages from equipment to equipment securing in such a way adequate anchorage for all time spent above ground. Wearing the proper harness, the user of the vehicle is protected by rails climbing the stairway and walking upon the platform. A gate secures the front of the platform. Thereafter, the worker attaches his harness—located at his back—to one of the lifelines previously installed between the anchor points and platform rail hooks. He then opens the front gate and walks onto the working area safely.
    Type: Application
    Filed: December 21, 2000
    Publication date: June 27, 2002
    Inventors: Gyorgy I. Figura, Ivan K. Figura
  • Patent number: 6378652
    Abstract: A lifting apparatus for a mobile crane work platform comprising a telescopic mast with a base section, and a plurality of vertically movable sections, the work platform being connected by an articulated arm assembly to the highest deployed movable section of the mast, the telescopic mast being collapsible to a lowered position and extensible to a deployed position. The articulated arm is connected to the highest movable section laterally of the axis of the mast so that the arm is outside of a space between the mast and the work platform when in the lowered position to thereby minimize the horizontal length of the lifting apparatus.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: April 30, 2002
    Assignee: Grove U.S.L.L.C.
    Inventor: Jean-Claude Albert
  • Patent number: 6378653
    Abstract: In a boom lift vehicle comprising a vehicle equipped with a travel apparatus and capable of travel, a boom that is attached to said vehicle and is at least vertically tiltable and horizontally rotatable, and a work platform attached to the distal end of said boom; a travel and rotation control device for controlling the travel of said vehicle and/or the rotation of said boom.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: April 30, 2002
    Assignee: Kabushiki Kaisha Aichi Corporation
    Inventor: Norihisa Takahashi
  • Patent number: 6371243
    Abstract: A mobile lift having extendable axes that is capable of switching between front-wheel steer, rear-wheel steer, all-wheel steer, and crab steer without resulting in undesirable tire scrubbing or unfavorable steering geometry. One embodiment provides a mobile personnel lift having a chassis supported by steerable front and rear wheel sets. The steerable wheel sets are mounted on axles that are extendable and retractable. A double-acting hydraulic cylinder is pivotally coupled between each steerable wheel and its corresponding axle for turning the wheel. A microprocessor controls the flow of hydraulic fluid to the hydraulic cylinders. Sensors positioned adjacent to each wheel measure the angular position of each wheel relative to the chassis, and transmit this information to the microprocessor to synchronize the wheels as required to provide the optimum steering geometry for the selected mode.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: April 16, 2002
    Assignee: Genie Industries, Inc.
    Inventors: James Donaldson, Nelson Wong
  • Publication number: 20020027042
    Abstract: The tool wagon according to the invention comprises spaces for stowing tools and/or spaces for storing accessories.
    Type: Application
    Filed: September 6, 2001
    Publication date: March 7, 2002
    Inventor: Salah Beji
  • Patent number: 6349793
    Abstract: A lifting apparatus for mounting to a vehicle includes a base assembly that is adapted to cooperate with the vehicle. Extending from a base of the base assembly is a plurality of columns. The base assembly further includes a connecting mechanism that securely attaches the base assembly to a bed of the vehicle. The lifting apparatus further includes a platform assembly having a platform and a plurality of outer column receivers extending from the platform. The outer column receivers cooperatively engage with the columns of the base assembly to allow sliding engagement therebetween. Cooperating with the platform assembly is a driving mechanism that is adapted to elevate the platform assembly relative to the base assembly. The driving mechanism includes a lifting chain, a motor assembly, and a gear assembly. The lifting chain has a first end attached to the base assembly and a second end attached to the platform assembly.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: February 26, 2002
    Inventor: Duane Kincaid
  • Publication number: 20020020583
    Abstract: The present invention is intended to provide a lifting apparatus for high-place work, which is easily accessible to an arbitrary high elevation.
    Type: Application
    Filed: July 16, 2001
    Publication date: February 21, 2002
    Inventors: Gye-Scok Lee, Nam-Kyung Kim
  • Publication number: 20010030082
    Abstract: 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 telescopically extensible and retractable boom members that are extended downwardly by action of gravity through opening to a subsurface location. The worker is supported in a stabilized manner during descent, suspension, and retraction of the boom members.
    Type: Application
    Filed: March 7, 2001
    Publication date: October 18, 2001
    Inventors: Steven L. Overby, David R. Benjamin
  • Patent number: 6276488
    Abstract: A crane extension system is provided for use with a crane having a boom, the improvement having a mounting platform assembly and a mounting basket, with the mounting basket secured to the mounting bracket assembly. The mounting platform assembly is secured to the crane, and includes a mounting plate attached to the crane and a mounting platform, with the mounting platform being attached to the mounting plate and having a mounting platform plate, a mounting bracket, and an adjustable bracket portion for adjusting the position of a mounting basket. Additionally, the mounting platform has a mounting platform base, with the mounting platform base secured to the mounting platform plate. The adjustable bracket portion is also secured to the mounting platform base.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: August 21, 2001
    Assignee: T & M Associates
    Inventors: Thomas C. Divine, John K. Ruckman