Patents Assigned to Leggett & Platt, Incorporated
  • Patent number: 4986589
    Abstract: A security file for use in a van-style vehicle, which file includes a lid cover of a lockable lid assembly pivotally movable between open and closed positions and also slidable between a rearwardly closed position and a forwardly partially open position, which forwardly partially open position facilitates use of the lid cover as a flat writing surface for a person seated in the driver's seat of the vehicle.
    Type: Grant
    Filed: August 22, 1989
    Date of Patent: January 22, 1991
    Assignee: Leggett & Platt, Incorporated
    Inventor: Donald W. McNew
  • Patent number: 4985945
    Abstract: A foldable sofa sleeper mechanism having pivotally interconnected head, body, intermediate and foot sections movable between a folded position in which the mechanism is contained within a storage enclosure of a sofa frame, and an extended unfolded position in which the bed frame extends in a planar attitude away from the sofa frame, and double-lock means for securing the foot section of the bed frame in an overlying position relative to the body section of the bed frame when the sofa sleeper mechanism is folded within the storage enclosure.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: January 22, 1991
    Assignee: Leggett & Platt, Incorporated
    Inventor: Danny C. Robinson
  • Patent number: 4986738
    Abstract: A housing containing an air pump and an air pressure supply system for supplying air to a body support, such as an air mattress. The housing contains, in addition to the air pump, diaphragm type pressure regulators and diaphragm type surge check valves, as well as passageways and pressure chambers for interconnecting the pump to the pressure regulators and surge check valves.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: January 22, 1991
    Assignee: Leggett & Platt Incorporated
    Inventors: Nozomu Kawasaki, Terence A. Scott
  • Patent number: 4982466
    Abstract: An air bed comprising an air mattress having a plurality of interconnected rows and columns of air cells divided into longitudinally isolated zones, and an airflow control system for supplying air at differing pressures to the zones such that a person reclining atop the mattress is supported and maintained in spinal alignment at subischemic applied pressures.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: January 8, 1991
    Assignee: Leggett & Platt, Incorporated
    Inventors: Larry Higgins, Terence A. Scott, Nozomu Kawasaki
  • Patent number: 4972536
    Abstract: A spring interior comprising a plurality of transversely extending bands of springs disposed side by side and connected together by longitudinally extending helical lacing wires in the top and bottom faces of the bands. Each band of springs comprises a single length of wire formed into a plurality of substantially vertical coil springs interconnected by interconnecting segments of wire located alternately in the top and bottom faces of the bands. The spring interior is characterized by sections of differing firmness or height throughout the length of the spring interior, which differing firmness or height sections are created by either having the wire from which the bands of coil springs differ in physical characteristics or by having the coil springs of the differing bands differ in height when in the relaxed state.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: November 27, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventor: Terence A. Scott
  • Patent number: 4960267
    Abstract: A spring interior comprising a plurality of longitudinally extending bands of springs disposed side by side and connected together by helical lacing wires in the top and bottom faces of the bands. Each band of springs comprises a single length of wire formed into a plurality of substantially vertical coil springs interconnected by interconnecting segments of wire located alternately in the top and bottom faces of the bands. The endmost coil springs of each row are interlaced for the length of the coil with the next adjacent coil of the same row such that the axes of the last two coils in each row are substantially coaxial.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: October 2, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventor: Terence A. Scott
  • Patent number: 4948198
    Abstract: A low profile knee-tilt chair control for controlling biased tilting between a chair seat plate and a chair base plate of a pedestal base chair wherein the chair base plate is supported by a single vertical spindle at the rear of the base plate, and the chair seat plate pivots about a horizontal axis at the front of the base plate. The chair seat is biased to an at-rest position by a low profile, conical helical compression spring operable between the base plate and chair seat and located between the spindle and the horizontal pivot axis of the base plate. The low profile, conical helical compression spring is so mounted relative to the base plate and chair seat plate that the small coils of the compression spring may pass through the large coils during compression of the spring. The control is further characterized by a lockout for securing the chair seat plate against tilting relative to the base plate in either of two different, selectable, at-rest positions.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: August 14, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventors: Philip Crossman, Kenneth C. Hybarger, Bryan H. Zeeuw, David A. Young
  • Patent number: 4942636
    Abstract: A spring interior comprising a plurality of longitudinally extending bands of springs disposed side by side and connected together by helical lacing wires in the top and bottom faces of the bands. Each band of springs comprises a single length of wire formed into a plurality of substantially vertical coils of springs interconnected by interconnecting segments of wire located alternately in the top and bottom faces of the bands. Each interconnecting segment comprises a longitudinally extending bridging portion, a pair of transversely extending end portions, and a transversely extending support structure. The corners defined by the intersections between the bridging portions and the end portions of the interconnecting segments are radiused by radii of differing dimension so as to colinearly align the bridging portions of each band of springs.
    Type: Grant
    Filed: April 19, 1989
    Date of Patent: July 24, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventors: Terence A. Scott, Chester R. Yates
  • Patent number: 4928331
    Abstract: A foldable sofa sleeper mechanism having pivotally interconnected head, body, intermediate and foot sections movable between a folded position in which the mechanism is contained within a storage enclosure of a sofa frame, and an extended unfolded position in which the bed frame extends in a planar attitude away from the sofa frame, and seat pitch adjustment means including an adjustable stop for varying the angle of pitch of the foot section, and thus of the seat, when the sofa sleeper mechanism is folded within the storage enclosure.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: May 29, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventor: Dennis E. Arft
  • Patent number: 4918773
    Abstract: A spring interior comprising a plurality of longitudinally extending bands of springs disposed side by side and connected together by helical lacing wires in the top and bottom faces of the bands. Each band of springs comprises a single length of wire formed into a plurality of substantially vertical coil springs interconnected by interconnecting segments of wire located alternately in the top and bottom faces of the bands. The coil springs of each row are interlaced with the adjacent coils of the same row. The spring interior is characterized by sections of differing firmness throughout the length of the spring interior. The sections of greatest firmness have such increased firmness imparted by a plurality of posture rods which extend through interlaced portions of a plurality of pairs of interlaced coils of the spring interior.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: April 24, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventor: Terence A. Scott
  • Patent number: 4905333
    Abstract: A spring interior comprising a plurality of longitudinally extending bands of springs disposed side by side and connected together by helical lacing wires in the top and bottom faces of the bands. Each band of springs comprises a single length of wire formed into a plurality of substantially vertical interconnected by interconnecting segments of wire coils of springs located alternately in the top and bottom faces of the bands. Each interconnecting segment comprises a longitudinally extending bridging portion and a transversely extending padding support structure. The padding support structure is angled upwardly away from the top face of the band and downwardly away from the bottom face of the band so as to impart initial softness and subsequent increased firmness to the spring interior when the spring unit is vertically compressed.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: March 6, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventor: Terence A. Scott
  • Patent number: 4896386
    Abstract: A box spring assembly includes a base frame, a top wire grid and a plurality of formed wire springs interconnecting the top wire grid and the base frame. The formed wire springs each comprises a wire strip formed into an inverted U-shaped configuration with the closed end of each U-shaped spring generally Z-shaped and attached to the top wire grid by a snap-fit connection and the free ends at the bottom of the U-shaped spring being attached to the base frame.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: January 30, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventors: Steven E. Ogle, Richard D. Seneker
  • Patent number: 4889384
    Abstract: A knee-action chair control for a pedestal chair base comprises a base plate, a seat support plate pivotally mounted on the front of the base plate, a pair of compression springs operable between the plates for biasing the seat support plate toward an at-rest position relative to the base plate, and a novel adjustable spring preload mechanism operable between the base plate and one end of the compression springs. Additonally, there is an assembly locking plate removably mounted on the seat plate and engageable with the base plate for determining the at-rest position of the seat plate. Removal of the assembly locking plate during assembly of the control enables the compression springs and spring preload mechanism to be assembled without precompression of the springs.
    Type: Grant
    Filed: July 10, 1988
    Date of Patent: December 26, 1989
    Assignee: Leggett & Platt, Incorporated
    Inventor: James H. Sulzer
  • Patent number: 4872567
    Abstract: A shelf coverting unit for a gondola display rack which is capable of converting from one form of shelving to another the gondola display racks of a number of different manufacturers or of a number of different designs. The racks have multiple uprights, each with a plurality of spaced slots on which shelves or shelf supporting brackets may be fastened to support the shelves at different heights. The unit includes a replacement shelf having in its rear panel a plurality of pairs of vertically spaced, horizontally elongated slotted openings. The shelf is supported on the uprights with separate brackets having forward and upwardly facing hooks which slideablyu engage the slotted openings to accommodate differences in upright spacing, and having rearwardly and downwardly facing hooks which engage the uprights. The brackets are oppositely offset and interchangeable to increase the range of upright spacings which they will accommodate.
    Type: Grant
    Filed: October 20, 1987
    Date of Patent: October 10, 1989
    Assignee: Leggett & Platt, Incorporated
    Inventor: Rafael T. Bustos
  • Patent number: 4863215
    Abstract: An improved linkage mechanism for use in a reclining item of action furniture having a movable seat, backrest and footrest, the mechanism being so constructed as to move the seat and backrest away from a wall immediately behind the backrest as the item of furniture moves from an upright to a TV or fully reclined position. Thereby, the backrest is prevented from contacting the wall behind the item of furniture during its movement to a fully reclined position. The mechanism is so constructed that a weight applied to the footrest when the mechanism is fully reclined will cause the mechanism to move from the fully reclined to the TV position and ultimately to the upright position.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: September 5, 1989
    Assignee: Leggett & Platt, Incorporated
    Inventor: Michael A. Crum
  • Patent number: 4862532
    Abstract: A box spring assembly includes a base frame, a top wire grid and a plurality of sinous wire springs interconnecting the top wire grid and the base frame. The sinuous wire springs each comprises a sinuous wire strip formed into an inverted U-shaped configuration with the closed end of each U-shaped spring attached to the top wire grid by a snap-fit connection and the free ends at the bottom of the U-shaped spring being attached to the base frame.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: September 5, 1989
    Assignee: Leggett & Platt, Incorporated
    Inventors: Thomas J. Wells, Angelo Serafini, Sidney A. Hiatt, Henry Zapletal
  • Patent number: 4862531
    Abstract: A box spring assembly includes a base frame, a top wire grid and a plurality of formed wire springs interconnecting the top wire grid and the base frame. The formed wire springs each comprises a wire strip formed into an inverted U-shaped configuration with the closed end of each U-shaped spring attached to the top wire grid by a snap-fit connection and the free ends at the bottom of the U-shaped spring being attached to the base frame.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: September 5, 1989
    Assignee: Leggett & Platt, Incorporated
    Inventor: Thomas J. Wells
  • Patent number: 4853991
    Abstract: A box spring assembly includes a base frame, a top wire grid and a plurality of sinuous wire spring strips interconnecting the top wire grid and the base frame. The sinuous wire spring strips each comprises six substantially vertical legs and three spaced, substantially flat, horizontal platform sections with the flat platform sections of each spring being attached to the top wire grid and the bottom ends of each leg being attached to the base frame.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: August 8, 1989
    Assignee: Leggett & Platt, Incorporated
    Inventor: Chester R. Yates
  • Patent number: D307987
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: May 22, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventor: Rafael T. Bustos
  • Patent number: D312930
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: December 18, 1990
    Assignee: Leggett & Platt, Incorporated
    Inventor: Rafael T. Bustos