Platform Type Patents (Class 254/2C)
  • Patent number: 5990423
    Abstract: A mobile bed scale is contemplated which lifts the entire bed with patient in situ on a load platform with a non-slip surface. The scale minimizes both vertical and horizontal displacement. The platform has load cells which deliver data to a memory and display device. The invention is portable and partly foldable to aid in storage. It provides for recharging if desired, and for use of an auxiliary power source if desired.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: November 23, 1999
    Assignee: EZE Weigh, LLC
    Inventors: Adam T. Ashpes, Richard Rynd
  • Patent number: 5848668
    Abstract: A method, device and system are provided that is a portable lifting system for easy movement of moderately heavy items, including a base member, a vertical support member connected to the base member and a load member slideably connected along the vertical support member. The system is typically small in size, allowing for ease of loading, lifting, transporting and unloading of moderately heavy objects of 25 to 100 pounds. The system is typically used in enclosed areas such as an office, home, workshop, garage or basement. The actual load member varies depending upon the type of load being lifted. A common type connector is used allowing interchangeability between the various load members. The system can further include a mechanical advantage member including a screw or a motor to control load member height. The mechanical advantage member may be controlled manually, or electronically.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: December 15, 1998
    Assignee: EZ Life Products, Inc.
    Inventors: Edward Kafrissen, Robert F. Ulrich
  • Patent number: 5690315
    Abstract: A compact lifter assembly having a base plate and a first intermediate plate rigidly connected by a first pair of shafts. A second intermediate plate is slidably attached on the first pair of shafts to be disposed between the base plate and the first intermediate plate. A second pair of shafts extend from the second intermediate plate, through apertures in the first intermediate plate for rigid connection to a mounting plate. A linear actuator centrally located on the base plate is actuated for lifting the mounting plate and a second intermediate plate relative to the base plate. The shafts are rigidly connected to the respective plates by a retaining ring and split taper plugged shaft retention to provide a zero clearance shaft joint connection.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: November 25, 1997
    Inventor: Timothy N. Thomas
  • Patent number: 5375963
    Abstract: A lifting apparatus includes a mast that is mounted orthogonally (perpendicularly) to the plane of a base supported by wheels. A beam and tension member are connected pivotally to the mast and further to a carriage assembly support in such a manner that the support and mast maintain a parallel relationship, as do the beam and tension member. A lifting ram is pivotally connected to the mast and to the telescopic beam. During a load lifting operation, the resulting parallelogram configuration of the mast, carriage assembly support, beam, and tension member serve to maintain the tines of the carriage assembly in a plane parallel to the base of the lifting apparatus as the carriage assembly is arcuately raised. The carriage assembly and tension member may be removed in order for the mast and boom to be used as an engine hoist, and the apparatus may be further used as an engine work stand by installing a plate on the engine which is pivotally installable on the mast at the ram attachment point.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: December 27, 1994
    Inventor: Clayton E. Wohlwend
  • Patent number: 5354080
    Abstract: A low lift pallet truck so configured, in its lowered and unladen mode, that entry into and exit from double-faced pallets is made without contact of its fork wheels and the pallet's bottom boards. In this mode, support wheel assemblies fixedly mounted on each side of the truck fork frame, position the forks above their normal lowered height. Lift linkage rod assembly springs retract the fork wheels upward into the fork structure clear of the floor. Therefore with the truck's drive wheel and support wheels bearing its weight, the truck can be moved with its forks positioned above the pallet bottom boards free of interference. When the forks are properly positioned in the pallet, operator actuation of the lift function causes the truck fork frame to rise and move the lift linkage to drop the fork wheels to floor contact. Simultaneously the support wheels move upward with the fork frame and no longer carry the truck's fork end weight loadings. Lifting is stopped when the pallet is clear of the floor.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: October 11, 1994
    Inventor: Robert E. Jones
  • Patent number: 5284321
    Abstract: A hydraulic jack movably supported by a plural casters has a vertically extending hydraulic cylinder with telescoping piston rods, has a load supporting frame at an upper end of the innermost piston rod, and has a reservoir partially filled with hydraulic fluid. A single foot pedal is pivotally supported on the jack, and is movable between first and second positions through a center position. A hydraulic valve arrangement is responsive to movement of the actuating member toward its first position for permitting fluid flow from the reservoir to the hydraulic cylinder and is responsive to movement of the actuating member toward its second position for permitting fluid flow from the hydraulic cylinder to the reservoir. A kicker lever supported for pivotal movement about the same axis as the actuating member is operatively coupled to the actuating member for movement therewith by two springs, and can actuate an air valve.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: February 8, 1994
    Assignee: Meyer Hydraulics Corporation
    Inventor: Barry G. Meyer
  • Patent number: 4998594
    Abstract: A driver training apparatus for simulating skid conditions of a vehicle which includes a lifting frame supported by four caster wheels which underlies and is connected with the vehicle suspension system and is propelled by the vehicle. Under normal driving conditions, the caster wheels turn to follow the direction of movement of the vehicle steered by the driver. Under the control of an instructor, the frame of the apparatus can raise the forward or rearward pairs of the caster wheels simultaneously or individually to raise the forward or rearward pairs of wheels of the vehicle relative to the surface of a roadway to simulate a slick road or skidding condition. Under the control of the instructor, the pivoting axis of the caster wheels can be inclined with respect to the vertical to stabilize lateral or forward movement of the vehicle when partially supported by the driver training apparatus.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: March 12, 1991
    Inventor: John C. Orloski
  • Patent number: 4731151
    Abstract: An apparatus for automatically mounting ready-made headliners into automotive bodies, comprising a jig selectively connectible to an assembly line conveyor to move synchronously therewith while performing the headliner mounting operation by moving a platform with a preferably adhesive coated headliner placed thereon through a window cut-out of a body, elevating the headliner into contact with the ceiling of the body while simultaneously moving a counter-pressure fixture against the roof of the body, and thereafter disconnecting from the conveyor to move in a direction opposite the movement of the conveyor, into a position for loading another headliner and reconnecting to the conveyor for another mounting cycle.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: March 15, 1988
    Assignee: Audi AG.
    Inventors: Adolf Kaller, Wilfried Michel, Josef Motzet
  • Patent number: 4682926
    Abstract: A machine is described for accurately elevating and aligning large ceiling panels for placement in an overhead ceiling. The machine includes a frame supported by wheels which permit horizontal transport of the machine between panel receiving and panel placing positions. Elevating outriggers are provided to elevate the frame and wheels at the panel placing location and to partially advance the panel vertically toward placement. A series of elevating stages which are slidably mounted upon guides fixed to the frame elevate the panel to its final elevation for placement. Hydraulic cylinders are provided to elevate the stages. A pair of carriages are provided, mounted on the elevating stages, slidably adjustable along stage frame members, for shifting the panel into transverse and longitudinal alignment for placement. An upper carriage includes a turntable bearing upon which is mounted a base for supporting the panel.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: July 28, 1987
    Assignee: Morrison-Knudsen Company, Inc.
    Inventors: Sam W. Chambers, Charles R. Spencer, Wade E. Miller
  • Patent number: 4470578
    Abstract: The invention concerns a load transfer device with a platform which is insertable below and movable with a load and equipped with a number of at least in one row below the platform arranged lifting means for elevating and lowering of the platform. For enabling the transfer device together with its load to be moved from a base, e.g. a floor, to another base, e.g. a loading platform, situated at a lower or higher level the lifting means are capable in each row individually or in groups alternatively of varying the distance between the base in question and the platform of the transfer device, whereas the latter is provided with feeling means which are capable of connecting the lifting means to a source of energy when the lifting means in question reaches a base situated on a lower level and of disconnecting this lifting means from the source of energy when said lifting means reaches a base on a higher level.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: September 11, 1984
    Assignee: Idux Industriell Exploatering Aktiebolag
    Inventors: Lars I. Arvidsson, Stig T. J/o/ negren
  • Patent number: 4378191
    Abstract: A cargo handling loader for pallets which is portable and capable of easily transporting a pallet carrying a cargo by a manual force. The loader comprises a loader body including a manipulation frame and a cargo receiving frame extended substantially horizontally from one end of the manipulation frame and having an elongated form so that it may be inserted into the cavity of a pallet; a front wheel supporting arm rotatably carrying a front wheel and secured to the cargo receiving frame for pivotal movement in a vertical plane; and a rear wheel supporting arm rotatably carrying a rear wheel and secured to the cargo carrying frame for pivotal movement in a vertical plane. The manipulation frame rotatably carries a manipulation member which in turn is connected to the front and rear wheel supporting arms by connecting links.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: March 29, 1983
    Inventor: Masataro Sato
  • Patent number: 4287965
    Abstract: A hoist pad mounted on a lift arm of a hoist to support a vehicle on the lift arm. The pad has a frame that fits over the top and sides of a part of the lift arm. A base is pivoted to the frame. The base supports a lift assembly in a plurality of positions to change the effective height of the lift assembly to accommodate for variations in vehicle frame and exhaust structure. The lift assembly has two legs articuately connected together and locatable in selected positions to provide variations in the effective height of the lift assembly.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: September 8, 1981
    Inventors: Alan D. Pearson, Gary L. Pearson
  • Patent number: 4082195
    Abstract: A material handling system incorporating an air operated scissors lift mounted on an air bearing pallet to move heavy or cumbersome loads. On top of the upper platform is a second air bearing pallet channelled so it can move in a guided path for use with a transition plate for transferring, loading and unloading heavy loads onto or from a truck bed or from a shelf or rack especially designed to support and handle heavy loads.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: April 4, 1978
    Assignee: Ex-Cell-O Corporation
    Inventor: Alfred B. Wnek
  • Patent number: 3982767
    Abstract: A hand-operated pallet truck having a single steerable ground wheel the axis of which intersects a vertical axis about which a combined wheel and jack assembly of the truck is rotatable.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: September 28, 1976
    Assignee: Marco Materialhantering AB
    Inventors: Hans Gustav Ingvar Larsson, Sven Gunnar Harald Stjarnovist
  • Patent number: 3958701
    Abstract: The present invention relates to a cargo transfer apparatus of load-shifting type. The load-shifting type cargo transfer apparatus according to the present invention consists of a stationary unit and a mobile unit. The stationary unit comprises a series of equally spaced parallel projections of equal width and height. The mobile unit comprises a main frame of a hollow square section with a rectangular top, and a support equipped with a plurality of tines integrally attached like comb-teeth at equal intervals perpendicularly to the longitudinal direction of said main frame, the tines having a H-shaped cross section and having rotatable rollers fitted to a plurality of shafts fixed at both ends to both ends of the underside of the tine at the same height. A cargo holder covers the top and both side surfaces of the tines in their longitudinal direction and has elliptical guide holes to engage a plurality of knock-pins provided at equal heights on the upper sides of tines.
    Type: Grant
    Filed: February 13, 1974
    Date of Patent: May 25, 1976
    Assignee: Japanese National Railways
    Inventors: Shukuro Yatagai, Katunori Tamura