With Equalizer Patents (Class 312/331)
  • Patent number: 6499818
    Abstract: A pull-out guidance assembly for drawers has one drawer-side pull-out rail and one body-side bearing rail on both sides of the drawer. A fluidic damper is provided as a rotation damper (20). Between the bearing rail (4) and the pull-out rail (6) is displaceably disposed a center rail (5). The pull-out rail (6) is set into a drawer side wall (3) and fixed therein. The fluidic damper, which is mounted on the pull-out rail (6) or the drawer side wall (3), includes a pinion (10), which meshes with a rack section (16) of a slider (8) movable relative to the pull-out rail (6), to the drawer side wall (3) and to the bearing rail (4). A stop (11) disposed on the bearing rail (4) is provided for the slider (8).
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: December 31, 2002
    Assignee: Julius Blum Gesellschaft m.b.H.
    Inventor: Klaus Brüstle
  • Patent number: 6424523
    Abstract: A computer system with a pluggable drive carrier assembly comprises a cabinet and a circuit board disposed within the cabinet. The circuit board, such as a base board, has a number of connectors attached to a first surface. A drive unit such as a hard disk drive is secured within a carrier. A logic connector and a power connector are adapted to attach to the drive. A flexible circuit assembly connects the logic connector and the power connector to a blind plug. The blind plug is adapted to mate with any of the number of connectors. A cam surface and lever arrangement is used to urge into engagement the blind plug and the selected one of the number of connectors. The logic connector and the power connector both have a number of contacts that extend in a direction generally parallel to the first surface of the circuit board such that a backplane is not required and can be eliminated.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: July 23, 2002
    Assignee: 3Ware
    Inventors: Robert B. Curtis, Bryan T. Silbermann, Robert W. Horst
  • Patent number: 6231143
    Abstract: A drawer guide of the over-extendible type, including a movement-control element or elements for controlling the movements of the sections of the drawer guide relative to one another. During operation, the movement-control element or elements remain in connection with multiple sections of the drawer guide. Movements of the control element or elements are dynamically coupled, in such a manner that control is maintained during the complete path of movement of the sections of the drawer guide.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: May 15, 2001
    Assignee: Thomas Regout B.V.
    Inventor: Andreas Petronella Maria Stijns
  • Patent number: 5829851
    Abstract: A gear damper includes anti-ratcheting means for preventing disengagement between a gear of the damper and a mating gear rack when a sliding or rotating tray is moved or rotated in and out of a stationary housing. The gear damper further includes mounting means so as to permit the gear damper to move floatingly in a direction perpendicular to the gear rack as a toothed wheel gear follows the gear rack. As a result, the distance between the toothed gear of the damper and the gear rack is held substantially constant so as to eliminate ratcheting and gear skipping.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: November 3, 1998
    Assignee: Illinois Tool Works Inc.
    Inventors: Steven L. Bivens, Ralph G. Nedbel
  • Patent number: 5765736
    Abstract: Pull-out sliding unit for installation in a motor vehicle has a sliding unit that can be pulled out like a drawer, which may, for example, be constructed as a drinks holder or as a tray surface, provided for installation in a fascia of a motor vehicle. In order to be able to remove the sliding unit easily from the device and exchange it, a sliding block engages the sliding unit and disengages by two wedges onto which the sliding block slides when the sliding unit, after being unlocked, is pulled out of the device beyond its open position.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: June 16, 1998
    Assignee: fischerwerke, Artur Fischer GmbH & Co. KG
    Inventors: Heinz Fischer, Ulrich Nienhaus, Bernd Schenk
  • Patent number: 5658058
    Abstract: A gear damper includes anti-ratcheting means for preventing disengagement between a gear of the damper and a mating gear rack when a sliding or rotating tray is moved or rotated in and out of a stationary housing. The gear damper further includes mounting means so as to permit the gear damper to move floatingly in a direction perpendicular to the gear rack as a toothed wheel gear follows the gear rack. As a result, the distance between the toothed gear of the damper and the gear rack is held substantially constant so as to eliminate ratcheting and gear skipping.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: August 19, 1997
    Assignee: Illinois Tool Works Inc.
    Inventors: Steven L. Bivens, Ralph G. Nedbal
  • Patent number: 5611288
    Abstract: An apparatus is provided for moving an ATM relative to a wall between a retracted position and an extended position. The apparatus includes a base, a gear, and a motor coupled to the base for rotating the gear relative to the base. The apparatus also includes a mechanism coupled to the ATM for engaging the gear to move the ATM between its retracted position and its extended position, and a bearing positioned between the base and the ATM to facilitate movement of the ATM relative to the base. The apparatus also includes a foldable floor panel coupled to the ATM. The foldable floor panel is configured to move from an unfolded, generally planar orientation when the ATM is in its extended position to a folded, generally upright position when the ATM is in its retracted position.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: March 18, 1997
    Assignee: Ernest R. Dallman
    Inventors: Ernest R. Dallman, Franklin W. Wehr
  • Patent number: 5564807
    Abstract: A pull-out mechanism for a drawer includes a support rail which is to be secured to a furniture cabinet, a pull-out rail which is to be secured to the drawer and a central rail arranged between the support and pull-out rails. The weight of the drawer is transmitted between the rails by rollers. Respective deflection rollers are arranged at the front and rear ends of the central rail. A control cable is secured to the support rail and to the pull-out rail and is guided over the deflection rollers. The cable has two free ends which are each connected to a coupling including a receiving part and an inserting part, each of which has a respective retaining member in the shape of a toothed rack, by way of which the inserting part can be coupled in the receiving part over a capture region corresponding to the length of the toothed racks. One of the coupling parts can be coupled to the support or pull-out rail.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: October 15, 1996
    Assignee: Julius Blum Gesellschaft m.b.H
    Inventors: Erich Rock, Ingo Gasser
  • Patent number: 5520451
    Abstract: A disclosed guide device for a flipper door includes a pair of main rails disposed in a cabinet body, a pair of auxiliary rails slidably supported respectively on the pair of main rails, and a pair of sliders slidably supported respectively on the pair of auxiliary rails. Two corner portions of the flipper door are rotatably supported on the pair of sliders, respectively. The guide device further includes an association mechanism for associating the auxiliary rails with the sliders respectively. The auxiliary rails and the sliders thus associated with each other by the association mechanism are slid along the main rails together, respectively. The association mechanism removes the association between the auxiliary rails and the sliders when the auxiliary rails have reached substantially innermost end portions of the main rails, respectively. By this, the sliders are allowed to slide inwardly of the cabinet body along the auxiliary rails.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: May 28, 1996
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventor: Kazuyoshi Oshima
  • Patent number: 5492400
    Abstract: A pull-out guide assembly for a drawer or the like includes a support rail to be fastened to a furniture side wall, a pull-out rail to be fastened to the drawer and an intermediate rail. Rollers transfer the load of the drawer from one rail to another. A cable is fastened to the support rail and is connectable to the pull-out rail, such cable running on pulleys mounted at front and rear ends of the intermediate rail. A coupling device is provided for releasably coupling the cable to the pull-out rail. The coupling device includes an inner elongated coupling member fastened to the cable and an outer coupling member fastened to the pull-out rail and embracing the inner coupling member. Both coupling members are provided with at least one rack member or arrangement of teeth that engage each other when in coupling position.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: February 20, 1996
    Assignee: Julius Blum Gesellschaft m.b.H.
    Inventor: Erich Rock
  • Patent number: 5421648
    Abstract: A drawer guide including a drawer rail for connection to a drawer, a carcass rail for connection to a carcass and a center rail which engages the drawer and carcass rails in a load transmitting relationship. Engagement with the drawer and carcass rails is by means of upper and lower carriages each of which include a plurality of rollers. In order to obtain synchronous displacement of the center rail during displacement of the drawer rail, there is provided a closed loop cable or chain traction means which runs over guide rollers arranged on opposite ends of the center rail. The upper run of the traction means is connected to both ends of the upper carriage, while the lower run of the traction means is connected to both ends of the lower carriage.
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: June 6, 1995
    Assignee: Grass AG
    Inventor: Guenter Grabher
  • Patent number: 5409309
    Abstract: A motion control apparatus for stabilizing the motion of a dishrack mounted within a tub of a dishwasher such that yawing of the dishrack relative to the tub during movement of the dishrack in and out of the tub is prevented. The motion control apparatus includes a mounting mechanism for mounting the dishrack within the tub such that the dishrack is supported within the tub and allowed in and out movement within the tub. A torque shaft is rotatably interconnected with the mounting mechanism such that the torque shaft is disposed transversely within the tub, while gear wheels are rigidly interconnected with the torque shaft at the opposite ends of the torque shaft. Gear tracks are provided along a horizontal top inner surface of the tub corresponding to the gear wheels wherein the gear wheels are operatively meshed with the gear tracks during the in and out movement of the dishrack within the tub.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: April 25, 1995
    Assignee: Whirlpool Corporation
    Inventors: Michael L. Giddings, Roger J. Bertsch
  • Patent number: 5275064
    Abstract: A telescoping platform assembly able to convert each unit of distance moved by a driver into two, four, or greater number of units of platform extension includes five or more interconnected slide members. The interconnected slide members are extended by operation of a powered driver coupled to the second slide member cooperating with first, second, and third cable and pulley mechanisms. The first cable and pulley mechanism couples the first, second, and third slide members together so that the third slide extends twice as far as the second slide member. The second cable and pulley mechanism couples the second, third, and fourth slide members together so that the fourth slide members extends three times as far as the second slide member. The third cable and pulley mechanism couples the third, fourth, and fifth slide members together so that the fifth slide member extends four times as far as the second slide member.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: January 4, 1994
    Assignee: General Devices Co., Inc.
    Inventor: James D. Hobbs
  • Patent number: 5226714
    Abstract: A pivoting drawer slide system for supporting drawer, either in the vertical or horizontal positions. A pair of tracks (22) are mounted in the interior of cabinet. A upper slide (12) is mounted to each side of drawer with a pivoting device mounted near the bottom rear corner of each side of drawer. A pair of lower slides (10) are connected together with a stabilizer bar (16) to form a yoke (32). The yoke (32) rides in the lower slot of track (22). Stop pins (20) and (21) prevent yoke (32) from disengaging track (22). A reversed tee slot (18) is made in each lower slide (10) for the purpose of receiving pivot (14).
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: July 13, 1993
    Inventor: Jack V. Wright
  • Patent number: 5149180
    Abstract: A door for an article of furniture which is slidable into a door compartment is fastened to a door-carrying bar which in turn is connected to a scissors-assembly having two beams anchored on one side wall of the door compartment. The door-carrying bar is guided on an upper rail fixed to one of two side walls of a door compartment and on a lower rail also disposed in the door compartment. In order to permit a precise fitting of the door and to facilitate an adjustment of the door, the lower rail is also fixed to the one of two side walls. Both rails are connected to the one side wall by bushings screwed into the rails and permitting an adjustment of a spacing of the rail from the side wall. The door-carrying bar has a roller which, when the door is not lowered, presses against a plastic plate provided in the vicinity of the leading edge of the one side wall. A setscrew is provided to permit a vertical displacement of the bar with respect to the scissors-assembly.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: September 22, 1992
    Inventors: Karl Haab, Otto Haab
  • Patent number: 5078461
    Abstract: A cabinet comprising a plurality of walls including a side wall, the walls being joined together to provide a cabinet framework having an open front and an open interior. A door is mounted to the cabinet framework and is movable between a closed position in which the door at least partially covers the open front of the framework and a pocketed position in which the door is received within the open interior of the framework and adjacent to the side wall. The foor is mounted to upper and lower guide frames which are mounted to the cabinet framework adjacent to the side wall. Upper and lower ends of a carrier are slidably mounted to the upper and lower guide frames and the door is pivotally mounted to the carrier. A pair of upper wheels is mounted to the upper end of the carrier and in rolling contact with the upper guide frame. A pair of lower wheels is mounted to the lower end of the carrier and in rolling contact with the lower guide frame.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: January 7, 1992
    Assignee: Herman Miller, Inc.
    Inventors: Robert L. Beck, Michael L. DePree, Andrew J. Kurrasch
  • Patent number: 4976502
    Abstract: A cabinet having a door moveable between a closed position, an open and partially pocketed position, and an open and fully pocketed position. The cabinet further comprises means for aligning the door relative to the cabinet side wall prior to moving the door into the cabinet.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: December 11, 1990
    Assignee: Herman Miller, Inc.
    Inventors: James O. Kelley, George A. Williams, Andrew J. Kurrasch, Geoffrey A. Hollington
  • Patent number: 4974912
    Abstract: A pocket door suspension system which permits the door to be moved, without skewing or sagging, from a closed position to an open and retracted position adjacent a supporting wall, the system having two telescoping slide assemblies mounted to the supporting wall, the door being attached by hinges to moveable members of the slide assemblies. Two cables are provided, each attached at one end to the back end of one fixed slide member and at the other end to the front end of the other fixed slide member. Each cable is slideably attached to the moveable members of the slide assemblies such that the pair of cables trace an "I" figure, the pair of cables effectively preventing the moveable members of the slide assemblies from moving out of a predetermined relationship to each other.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: December 4, 1990
    Assignee: Standard Precision, Inc.
    Inventors: Richard O. Rask, Donald A. Kasten
  • Patent number: 4929097
    Abstract: A thin-walled rectilinear motion rolling guide unit comprising a bed member, a table member slidably movable relative to said bed member in the longitudinal direction, and a ball retainer interposed between said two members.According to the present invention, a rack and pinion mechanism is provided between said table member and ball retainer, with the use of a different teeth-meshing ratio between the table member and the ball retainer such that the speed in rectilinear motion of the former is greater than that of the latter such as a value of 2:1 for example, so that by decreasing the relative velocity of the ball retainer with the table member, the displacement of the former with the latter in operation can be prevented under any stress applied vertically onto the unit, insuring a high precision operation with less sliding resistance.
    Type: Grant
    Filed: September 15, 1989
    Date of Patent: May 29, 1990
    Assignee: Nippon Thompson Co., Ltd.
    Inventor: Tatsuo Mottate
  • Patent number: 4925258
    Abstract: A filing cabinet including a flipper door assembly, an interlocking file drawer assembly, and a suspension mounting arrangement for the file drawer. The cabinet comprises a door for closing an opening in a housing, a pair of door guide channels, and a pair of hinge blocks guided by the guide channels. The door is pivotally attached to said hinge blocks for swinging from a closed position covering the opening to a position aligned with the guide channels for insertion into the guide channels and movement into the housing. The guide channels contain the racks of a rack and pinion squaring mechansim which has an equalizing shaft supported by the hinge blocks. The drawer suspension includes telescoping slides and a row of hooks at each side of the drawer engage a row of hook receiving elements on the inner slide rail. The drawer is formed from interlocking components and a divider and hanger bars are installable therein.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: May 15, 1990
    Assignee: Haworth Sub, Inc.
    Inventors: Gary L. Ludwig, Edward M. Verschueren
  • Patent number: 4910916
    Abstract: A sliding door fitting includes at least two superjacently arranged guide rails each having a pivot member which is displaceable thereon and at which a door is mounted. Each pivot member includes a running plate which is provided on one side with rollers in the manner of a running carriage. A mounting plate for a hinge is mounted on the other side of the running plate, the hinge thus being movable along the guide rail.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: March 27, 1990
    Assignee: Julius Blum Gesellschaft m.b.H.
    Inventors: Fredi Dubach, Erich Rock
  • Patent number: 4821375
    Abstract: An improved recessing hinge mechanism for doors and the like is comprised of an anchor member slidably supporting an upper end of an arm of a selectively expandable stabilizer device having two cooperative arms pivotably joined to one another at their respective midpoints and pivotably supporting a lower end of the opposite arm, with the ends of the respective arms, opposite those attached to the anchor member, being slidably/pivotably attached to a support/pivot rod, which pivotably carries the pivot edges of a door. For a recessing operation, the door is pivoted about the rod from a closed position to an open position, parallel to the expanded stabilizer device and then linearly moved toward the anchor member, with the scissors-like stabilizer device closing to a minimum dimension so that the support rod stops adjacent to the anchor member. The inventive hinge mechanism provides a ratio of recess depth to door width which is greater than about 1:0.95.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: April 18, 1989
    Assignee: Viking Metal Cabinet Co., Inc.
    Inventor: Anthony R. Kozon
  • Patent number: 4761044
    Abstract: Frame structure for housing panel plates such as printed circuit boards. This structure is capable of housing panel plates having varying width, and consists of a top plate that is spaced from a bottom plate fixed thereto by means of support columns. The structure also has an immovable side board and a movable side board between the top and bottom plates. Each of the opposing side boards has a plurality of lateral grooves for housing the plates. The movable side board is easily movable while it is kept parallel to the immovable side board.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: August 2, 1988
    Assignee: Nikko Kogyo Kabushiki Kaisha
    Inventors: Toyohiko Akama, Masashi Iino, Osamu Igarashi
  • Patent number: 4720154
    Abstract: An automatic teller banking device of the type used in connection with drive through banking facilities. The device is a kiosk positioned on a traffic island so that bank customers may remain in their vehicles while conducting banking transactions in the absence of human tellers. The island kiosk is generally rectangular in shape and includes a motorized drawer in its medial portion. The drawer may extend outwardly from the kiosk to block a traffic lane when the land is closed, and maintenance of the device may be performed when the drawer is in its out or extended position. Three telescopically nested platforms carry the movable drawer. A pivotally mounted lever arm is pivoted about a first, permanently positioned pivot point by a linear actuator. A pushrod having a first end pivotally mounted to the free end of the lever arm and a second end secured to the topmost of the three platforms carries the topmost platform out when the lever arm is displaced by the actuator.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: January 19, 1988
    Inventor: Stephen R. Seiter
  • Patent number: 4627672
    Abstract: A rack formed by a window-like framework is adapted to support various holders for organizing articles in a cabinet and is adapted to be pulled from a stored position in the cabinet to an accessible position in which substantially the entire rack is disposed completely outside the cabinet. The rack is carried by a bottom-supported mounting assembly having pivoted arms which collapse toward one another as the rack is moved inwardly to its stored position and expand away from one another to form a double-triangular bracing structure as the rack is pulled outwardly to its accessible position. The arms coact with guide rollers on the bottom of the cabinet to hold the rack stable in each of its positions without need of any top support for the rack. One of the holders which is supported by the rack is a wire-grid book shelf equipped with an adjustable bookend which is held by the grids of the shelf.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: December 9, 1986
    Assignee: Amerock Corporation
    Inventor: William DeBruyn
  • Patent number: 4615570
    Abstract: A cabinet (10) comprises a top wall (12), bottom wall (14), two identical side walls (16), each having a front edge (18), and a back wall (20), the walls (12, 14, 16, 20) defining a front opening (22). A flipper door (24) is adapted to cover the opening (22) and the front edges (18) of the side walls (16) when the flipper door (24) is in the closed position. To this end, the width of the flipper door (24) is greater than the distance between the sidewalls (16) of the cabinet (10). In addition, the flipper door (24) is suspended by a rack-and-pinion assembly (26) which includes racks (30) secured to the side walls (16) and pinion gears (36) rotatably engaging the racks (30). The pinion gears (36) are coupled together by an axle (40). The ends of the axle (40) engage lower guide channels (34) in the racks (30). Pivot links (46) are pivotally coupled to the ends of the axle (40) between the pinion gears (36) and the racks (30).
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: October 7, 1986
    Assignee: Herman Miller, Inc.
    Inventor: Steven F. Goodman
  • Patent number: 4591214
    Abstract: A cabinet of the type having an opening includes a panel which is pivotable between opening-blocking and opening-unblocking positions. The panel is slidable into the cabinet from its unblocking position along parallel spaced tracks, each of which includes a gear rack and a spur gear mounted thereon. An equalizer rod joins together the spur gears and is coupled to the panel to ensure free movement of the panel along the tracks. A tubing encloses the equalizer rod and is mounted for movement with that rod. The equalizer tube is coupled at opposite ends thereof to the tracks to prevent pivoting of the tube. Hinges are mounted to the tubing for supporting the panel for its pivotable movement.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: May 27, 1986
    Assignee: Knoll International, Inc.
    Inventors: Robert E. Reuter, Isidoro N. Markus
  • Patent number: 4428304
    Abstract: An adjustable shelf unit for use in a storage rack and having at least two shelf panels supported on laterally spaced forwardly extending support members. Each panel is slidable over the panel behind it and each panel but the front panel has a indentation across its forward edge the depth of which is equal to the thickness of a transversely extending lip on the rear of the panel in front of it. The side flanges of the panels have tabs which engage one another when the panels are extended to limit the forward travel of the panels. Also disclosed is a cable which is looped around sheaves fixed to the support members. The cable is fixed to each side of the front panel so as to maintain proper alignment of the panels.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: January 31, 1984
    Assignee: Parsons Manufacturing, Incorporated
    Inventor: Robert Moser
  • Patent number: 4320934
    Abstract: A pull-out guide for drawers with which the drawer can be pulled completely free of the cabinet and is still held in the latter has a structure such that on each side of the drawer is a holding member attached to the drawer and a holding member attached to the side wall of the cabinet, both holding members being elongated and have a running surface for a roller placed between the holding members and mounted in the middle of an intermediate rail. The holding members have a rack profile and a part of the roller is a pinion engaging in the racks.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: March 23, 1982
    Assignee: Julius Blum Gesellschaft m.b.H.
    Inventors: Erich Rock, Bernhard Mages
  • Patent number: 4285560
    Abstract: An anti-racking device for a lateral file cabinet including conventional slides mounted at the bottom and along each side edge of the drawer. The slides are mounted to the cabinet frame by the vertical and horizontal flanges of an L-shaped bracket which is mounted to the side panels of the cabinet by single screw mountings so that the bottom slides may move vertically to compensate for manufacturing tolerances and future wear.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: August 25, 1981
    Assignee: Schwab Safe Co., Inc.
    Inventor: Norman Miller
  • Patent number: 4226490
    Abstract: An arrangement for stabilizing the in and out movement of a dishwasher dishrack which produces a precise guidance of the rack during its movement, including a stabilizer axle mounted to the rack and extending normally to the direction of movement. Friction rollers are fixed at either end of the stabilizer axle, spring-biased into engagement with an interior surface of the dishwasher cabinet, the constrained simultaneous rotation of each wheel serving to precisely control the movement and attitude of the rack during in and out movement. The spring-bias also preloads the rack mounting components to provide a vertical stabilizing effect. The stabilizer axle is mounted to specially configured rear corner brackets, housing spring-biased plungers which rotatably mount the axle, while producing the upward biasing thereof.
    Type: Grant
    Filed: August 4, 1978
    Date of Patent: October 7, 1980
    Assignee: General Electric Company
    Inventors: Thomas E. Jenkins, Thomas M. Hahn, Donald S. Cushing
  • Patent number: 4192564
    Abstract: A refrigerator cabinet is supported at the rear corners by vertically adjustable legs and at the front by a pair of widely-spaced front wheel assemblies that are connected through a self-leveling system. Movable members associated with each of the wheel assemblies are connected by a rod that serves to cause each movable member to urge its corresponding wheel assembly downwardly with like force. When the cabinet is placed on an uneven supporting surface, the wheel assemblies move up and down until the forces supported by each are equal.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: March 11, 1980
    Assignee: General Electric Company
    Inventor: Gerhard K. Losert