Patent US6049610A successfully refreshed from Google Patents.
Patent US4703527A successfully refreshed from Google Patents.
US4703527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bedding springs and bedding units
Assignee: Individual
•
Filing: 1985-12-24
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Granted: 1987-11-03
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Expires: 2005-12-24
Abstract
Abstract A bedding unit such as a box spring has springs with lower portions mounted on the frame of the unit, upper portions connected to the wire grid of the unit, and midportions which are collapsible to support the grid resiliently on the frame. The upper portion of a corner spring includes a vertically uncompressible loop which contacts the frame when the midportion is collapsed, thereby limiting the deflection of the spring. The loop also prevents the filler material fo the unit from collapsing inwardly. The main springs of the unit have upper portions which have hooks for engaging the grid wires of the unit. These hooks are located at opposite ends of the wire which forms the spring. The upper portions have transverse bars which are connected to the hooks by connecting sections.
Inventors
- 👤 Ned W. Mizelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:49
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/04; A47C23/043; A47C23/0438; A47C23/007
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
142 words
A spring for supporting a wire grid on a frame of a bedding unit, said spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said upper portion being substantially horizontal and including a pair of transverse bars and a pair of hook means, each of said hook means being arranged to extend over and hook under a wire of the wire grid, said hook means being located and formed in opposite ends of the single resilient wire, said upper portion having a pair of connecting sections each of which connects a hook means to one end of a transverse bar.
Claim 2
Dependent Claim
142 words
A spring for supporting a wire grid on a frame of a bedding unit, said spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said upper portion being substantially horizontal and including a pair of transverse bars and a pair of hook means, each of said hook means being arranged to extend over and hook under a wire of the wire grid, said hook means being located and formed in opposite ends of the single resilient wire, said upper portion having a pair of connecting sections each of which connects a hook means to one end of a transverse bar.
Claim 3
Dependent Claim
45 words
A spring according to claim 1 wherein the transverse bars are torsion bars, said midportion including torsion bars and connector bars, said connector bars connecting the torsion bars of the midportion to the lower portion and to the transverse torsion bars of the upper portion.
Claim 4
Dependent Claim
37 words
A spring according to claim 2 wherein the midportion is vertically collapsible to a compressed position where the upper portion is in contact with the torsion bars of the midportion to limit the deflection of the spring.
Claim 5
Dependent Claim
29 words
A spring according to claim 1 wherein each connecting section is L-shaped and includes a longitudinal bar which is positionable in underlying relation to a wire of the grid.
Claim 6
Dependent Claim
34 words
A spring according to claim 1 wherein each of the connecting sections includes a longitudinally oriented center bar portion which lies parallel to and bears laterally against the wire engaged by the hook means.
Claim 7
Dependent Claim
44 words
A spring according to claim 1 in combination with a wire grid, a frame, and a plurality of said springs; said springs having their lower portions connected to the frame and their upper portions connected to the wire grid to form a bedding unit.
Claim 8
Dependent Claim
84 words
A bedding unit according to claim 6 which also includes a corner spring formed of a single resilient wire, said corner spring having a corner spring lower portion connected to the frame, a corner spring upper portion connected to the wire grid, and a resiliently collapsible corner spring midportion connecting the upper portion of the corner spring to the lower portion of the corner spring, said upper portion of the corner spring including a vertical loop which is substantially uncompressible in a vertical direction.
Claim 9
Dependent Claim
70 words
A bedding unit according to claim 6 wherein the frame includes a plurality of parallel crossrails which extend from side-to-side of the bedding unit, and the wire grid is formed of a plurality of longwires intersecting a plurality of crosswires, said crosswires of the wire grid lying in vertical alignment with the crossrails of the frame, at least some of said springs having their hook means connected to the crosswires.
Claim 10
Dependent Claim
80 words
A bedding unit according to claim 8 wherein the midportion of the spring includes torsion bars and connector bars, said connector bars connecting the torsion bars of the midportion to the lower portion and to the transverse bars of the upper portion, said grid being downwardly movable, when the midportion of the spring collapses, to a position where a wire of the grid contacts a torsion bar of the midportion of the spring to limit the deflection of the spring.
Claim 11
Dependent Claim
116 words
A corner spring for supporting a corner of a wire grid on a frame of a bedding unit, said corner spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said midportion including two vertically collapsible portions which are connected to opposite ends of said upper portion, each of said vertically collapsible portions having a torsion bar and connector bars, said upper portion including a vertical loop which is substantially uncompressible in a vertical direction.
Claim 12
Dependent Claim
116 words
A corner spring for supporting a corner of a wire grid on a frame of a bedding unit, said corner spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said midportion including two vertically collapsible portions which are connected to opposite ends of said upper portion, each of said vertically collapsible portions having a torsion bar and connector bars, said upper portion including a vertical loop which is substantially uncompressible in a vertical direction.
Claim 13
Dependent Claim
45 words
A corner spring according to claim 10 wherein the upper portion has horizontal attachment bars which are connectible to the wire grid, said horizontal bars being angularly disposed relative to each other, said vertical loop having opposite ends which extend to said horizontal attachment bars.
Claim 14
Dependent Claim
57 words
A corner spring according to claim 10 wherein the midportion is collapsible to the extent that said vertical loop has a lower end which is downwardly movable to a position where it lies in the same horizontal plane as the lower portion, whereby the vertical loop contacts the frame to limit the deflection of the corner spring.
Claim 15
Dependent Claim
25 words
A corner spring according to claim 10 wherein the upper portion includes four vertical bars, two of which form opposite legs of said vertical loop.
Claim 16
Dependent Claim
22 words
A corner spring according to claim 10 wherein the torsion bars of the two vertically collapsible portions are perpendicular to each other.
Claim 17
Dependent Claim
28 words
A corner spring according to claim 10 wherein the lower portions comprise bars which are rotatable in response to vertical collapsing movement of the midportion of the spring.
Claim 18
Dependent Claim
41 words
A corner spring according to claim 10 in combination with a wire grid and a frame, said corner spring having its lower portion connected to the frame and its upper portion connected to the wire grid to form a bedding unit.
Claim 19
Dependent Claim
129 words
A spring for supporting a wire grid on a frame of a bedding unit, said spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said midportion including two vertically collapsible portions which are connected to opposite ends of said upper portion, each of said vertically collapsible portions having a torsion bar and connector bars, said lower portion comprising bars which are attached to each vertically collapsible portion and are rotatable and are free of torsion in response to vertical collapsing movement of the midportion of the spring.
Claim 20
Dependent Claim
129 words
A spring for supporting a wire grid on a frame of a bedding unit, said spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said midportion including two vertically collapsible portions which are connected to opposite ends of said upper portion, each of said vertically collapsible portions having a torsion bar and connector bars, said lower portion comprising bars which are attached to each vertically collapsible portion and are rotatable and are free of torsion in response to vertical collapsing movement of the midportion of the spring.
Claim 21
Dependent Claim
44 words
A spring according to claim 17 in combination with a wire grid, a frame, and a plurality of said springs; said springs having their lower portions connected to the frame and their upper portions connected to the wire grid to form a bedding unit.
Claim 22
Dependent Claim
28 words
A combination according to claim 18 wherein the frame is wood and is indented to provide bearing-like seats which support said bars of the lower portion for rotation.
Claim 23
Dependent Claim
123 words
A corner spring for supporting a corner of a wire grid on a frame of a bedding unit, said corner spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said upper portion having horizontal attachment bars which are connectible to the wire grid, said horizontal bars being angularly disposed relative to each other, said vertical loop having opposite ends which extend to said horizontal attachment bars, said upper portion including a vertical loop which is substantially uncompressible in a vertical direction.
Claim 24
Dependent Claim
123 words
A corner spring for supporting a corner of a wire grid on a frame of a bedding unit, said corner spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said upper portion having horizontal attachment bars which are connectible to the wire grid, said horizontal bars being angularly disposed relative to each other, said vertical loop having opposite ends which extend to said horizontal attachment bars, said upper portion including a vertical loop which is substantially uncompressible in a vertical direction.
Claim 25
Dependent Claim
103 words
A corner spring for supporting a corner of a wire grid on a frame of a bedding unit, said corner spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said upper portion including a vertical loop which is substantially uncompressible in a vertical direction, said upper portion including four vertical bars, two of which form opposite legs of said vertical loop.
Claim 26
Dependent Claim
103 words
A corner spring for supporting a corner of a wire grid on a frame of a bedding unit, said corner spring being formed of a single resilient wire which has a lower portion connectible to the frame, an upper portion connectible to the wire grid, and a midportion connecting the lower portion to the upper portion, said midportion being vertically collapsible to support the upper portion resiliently on the lower portion, said upper portion including a vertical loop which is substantially uncompressible in a vertical direction, said upper portion including four vertical bars, two of which form opposite legs of said vertical loop.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-02 | 1991-05-04 | 1991-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-02 | 1995-05-04 | 1995-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-02 | 1999-05-04 | 1999-11-03 | $7700.00 | Window Closed / Lapsed |