US3755833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Box spring frame
Assignee: Sealy Inc
•
Filing: 1971-12-15
•
Granted: 1973-09-04
•
Expires: 1991-12-15
Abstract
Abstract A generally rectangular box spring frame consisting of wooden end and side rails and metal cross rails which are supported on the side rails and are particularly constructed in an inverted Ushape cross section so as to efficiently resist loads. The cross rails are assembled with the box springs that they support so as to enable use of some of the box springs in attaching the cross rails to the side rails.
Inventors
- 👤 W Slominski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:02
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/04; A47C23/05
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
200 words
A generally rectangular frame for a box spring assembly which includes a plurality of connected wire springs that terminate in substantially horizontal attaching portions, said frame comprising side and end frame rails formed of wood and spaced spring supporting cross rails extending between said side rails, each of said cross rails being formed of a rigid material and being of a substantially inverted U-shape, each of said cross rails having upright leg sections which are horizontally spaced and have openings therein arranged in horizontally aligned pairs, said spring attaching portions on at least some of said springs being extended horizontally through pairs of said openings so as to mount said springs on said cross rails, the lower ends of said leg sections being positioned on the top sides of said side rails at the ends of said cross rails, one of said spring attaching portions being located adjacent the end of each cross rail at a position overlying a side rail, and connector means engaged with said one spring attaching portion and extending into the side rail therebelow so as to apply a downward force to the cross rail maintaining the cross rail in assembly relation with the side rail.
Claim 2
Dependent Claim
200 words
A generally rectangular frame for a box spring assembly which includes a plurality of connected wire springs that terminate in substantially horizontal attaching portions, said frame comprising side and end frame rails formed of wood and spaced spring supporting cross rails extending between said side rails, each of said cross rails being formed of a rigid material and being of a substantially inverted U-shape, each of said cross rails having upright leg sections which are horizontally spaced and have openings therein arranged in horizontally aligned pairs, said spring attaching portions on at least some of said springs being extended horizontally through pairs of said openings so as to mount said springs on said cross rails, the lower ends of said leg sections being positioned on the top sides of said side rails at the ends of said cross rails, one of said spring attaching portions being located adjacent the end of each cross rail at a position overlying a side rail, and connector means engaged with said one spring attaching portion and extending into the side rail therebelow so as to apply a downward force to the cross rail maintaining the cross rail in assembly relation with the side rail.
Claim 3
Dependent Claim
45 words
A frame for a box spring assembly according to claim 1 wherein said upright leg sections terminate at the lower ends thereof in transversely extending flanges to thereby provide substantial material in the lower ends of said rails to resist longitudinal bending of said rails.
Claim 4
Dependent Claim
18 words
A frame for a box spring assembly according to claim 2 wherein said flanges have upturned end portions.
Claim 5
Dependent Claim
17 words
A frame according to claim 3 wherein said flanges in each rail extend away from each other.
Claim 6
Dependent Claim
18 words
A frame according to claim 1 wherein said spring attaching portions are frictionally engaged with said leg sections.
Claim 7
Dependent Claim
18 words
A frame according to claim 1 wherein said connector means is a staple straddling said spring attaching portion.
Claim 8
Dependent Claim
52 words
A frame according to claim 1 wherein each of said cross rails has a pair of slots adjacent each end thereof and spaced therefrom a predetermined distance and a base section extending between said leg sections and terminating short of the ends of said cross rail distances greater than said predetermined distance.
References Cited (Backward Citations)
US1095712A
Cited
US3574240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |