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US 4,730,357 AGranted
Bedding box spring
AssigneeLeggett & Platt, Incorporated
InventorThomas J. Wells
Life of this patent
Estimating the term…
Abstract
A bedding mattress support foundation comprises a base frame, a plurality of formed wire springs mounted upon the base frame, and a wire grid mounted atop the formed wire springs. Each formed wire spring comprises a generally S-shaped horizontal load supporting portion and a pair of vertically extending yieldable end portions extending downwardly from opposite ends of the load supporting portion. Two parallel wires of the wire grid are secured to curvilinear portions of the S-shaped horizontal load supporting portion of each spring and three other parallel wires extending perpendicular to the first two parallel wires and rest atop but are unsecured to the S-shaped horizontal load supporting portion of each spring.
Claims19
A bedding spring product comprising
- a horizontally disposed, generally rectangular frame,
- a plurality of formed wire springs mounted on said frame and extending upwardly therefrom, each of said springs comprising a unitary wire member having a generally horizontal load supporting portion and yieldable end portions depending from the ends of said load supporting portion, said yieldable end portions of said springs being supported upon said frame,
- a generally horizontal grid supported atop said horizontal load supporting portion of said springs, said grid being defined by a first plurality of spaced parallel wires and a second plurality of spaced parallel wires extending perpendicular to said first plurality of wires, said load supporting portion of each of said springs being formed from curvilinear sections formed into a generally S shape, said S-shaped load supporting portion having its opposite ends connected to said yieldable end portions of said spring,
- at least two of said first plurality of spaced parallel wires of said grid being secured to said curvilinear sections of each of said S-shaped load supporting portion of each of said springs,
- padding over the top of said grid, and
- an upholstered covering encasing said frame, wire springs, grid and padding.
3 more elements
A box spring assembly comprising
- a horizontally disposed, generally rectangular frame,
- a plurality of formed wire springs mounted on said frame and extending upwardly therefrom, each of said springs comprising a unitary wire member having a generally horizontal load supporting portion and yieldable end portions depending from the ends of said load supporting portion, said yieldable end portions of said springs being supported upon said frame,
- a generally horizontal grid supported atop said horizontal load supporting portion of said springs, said grid being defined by a first plurality of spaced parallel wires and a second plurality of spaced parallel wires and a second plurality of spaced parallel wires extending perpendicular to said first plurality of wires, said load supporting portion of each of said springs being formed from curvilinear sections formed into a generally S shape, said S-shaped load supporting portion having its opposite ends connected to said yieldable end portions of said spring, and
- at least two of said first plurality of spaced parallel wires of said grid being secured to said curvilinear sections of each of said S-shaped load supporting portion of each of said springs.
1 more element
A box spring assembly comprising
- a horizontally disposed, generally rectangular frame,
- a plurality of formed wire springs mounted on said frame and extending upwardly therefrom, each of said springs comprising a unitary wire member having a generally horizontal load supporting portion and yieldable end portions depending from the ends of said load supporting portion and supported from said frame,
- said load supporting portion of each of said springs being formed of curvilinear sections formed into a generally serpentine shape, said load supporting portions of each of said springs having opposite ends connected to said yieldable end portions of said spring, and
- a generally horizontal grid supported from said horizontal load supporting portion of said springs, said grid being defined by a first plurality of spaced parallel wires and a second plurality of spaced parallel wires extending perpendicular to said first plurality of wires, at least two of one of said plurality of spaced parallel wires being secured to said curvilinear sections of each of said load supporting portions of said springs.
1 more element
A box spring assembly comprising
- a horizontally disposed, generally rectangular frame,
- a plurality of formed wire springs mounted on said frame and extending upwardly therefrom, each of said springs comprising a unitary wire member having a generally horizontal load supporting portion and yieldable end portions depending from the ends of said load supporting portion, said yieldable end portions of said springs being supported upon said frame,
- a generally horizontal grid supported atop said horizontal load supporting portion of said springs, said grid being defined by a first plurality of spaced parallel wires and a second plurality of spaced parallel wires extending perpendicular to said first plurality of wires, said load supporting portion of each of said springs being formed from curvilinear sections formed into a generally S shape, said S-shaped load supporting portion having its opposite ends connected to said yieldable end portions of said spring, and
- at least two of said first plurality of spaced parallel wires of said grid being secured to said S-shaped load supporting portion of each of said springs.
1 more element
A box spring assembly comprising
- a horizontally disposed, generally rectangular frame,
- a plurality of formed wire springs mounted on said frame and extending upwardly therefrom, each of said springs comprising a unitary wire member having a generally horizontal load supporting portion and yieldable end portions depending from the ends of said load supporting portion and supported from said frame,
- said load supporting portion of each of said springs being formed of curvilinear sections formed into a generally serpentine shape, said load supporting portions of each of said springs having opposite ends connected to said yieldable end portions of said spring, and
- a generally horizontal grid supported from said horizontal load supporting portion of said springs, said grid being defined by a first plurality of spaced parallel wires and a second plurality of spaced parallel wires extending perpendicular to said first plurality of wires, at least two of one of said plurality of spaced parallel wires being secured to said serpentine-shaped load supporting portions of said springs.
1 more element
Dependencies are inferred from the claim text.