US3852838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Box spring assembly and improved springs therefor
Assignee: Hoover Group Inc
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Filing: 1973-05-23
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Granted: 1974-12-10
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Expires: 1993-05-23
Abstract
Abstract A box spring assembly of the formed wire spring type comprising a plurality of spring members mounted on a supporting frame and connected together to form a spring deck disposed above the frame and yieldably movable toward the frame. Some or all of the springs are of an improved construction wherein each consists of a substantially horizontal body portion and depending end portions each of which comprises a plurality of angularly arranged connecting bars and substantially horizontal torsion bars. Alternate ones of the connecting bars are substantially closer to being horizontal in the unloaded condition of the springs than the remaining ones of the connecting bars, the remaining ones of the connecting bars extending upwardly from the alternate ones so that the remaining ones are more nearly vertical than the alternate ones. As a result, when the springs are subjected to downwardly directed loads, resistance to load is achieved by both twisting of the torsion bars and bending of some of the connecting bars.
Inventors
- 👤 W Slominski
- 👤 J Mandusky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:42
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
166 words
In a box spring assembly which includes a supporting frame, a plurality of spring members mounted on said frame and connected together to form a spring deck disposed above the frame and yieldably movable toward the frame, at least some of said springs comprising substantially horizontal body portions and depending end portions, each of said end portions comprising a plurality of angularly arranged connecting bars and substantially horizontal torsion bars extending between and connecting adjacent connecting bars, alternate ones of said connecting bars being substantially horizontal in the unloaded condition of said spring and other ones of said connecting bars extending obliquely upward from said alternate ones so that when said springs are subjected to downwardly directed loads said alternate connecting bars are bent downwardly and said other connecting bars are also bent downwardly so that they become inclined in the same direction as said alternate bars to thereby achieve resistance to load by both twisting of said torsion bars and bending of said connecting bars.
Claim 2
Dependent Claim
166 words
In a box spring assembly which includes a supporting frame, a plurality of spring members mounted on said frame and connected together to form a spring deck disposed above the frame and yieldably movable toward the frame, at least some of said springs comprising substantially horizontal body portions and depending end portions, each of said end portions comprising a plurality of angularly arranged connecting bars and substantially horizontal torsion bars extending between and connecting adjacent connecting bars, alternate ones of said connecting bars being substantially horizontal in the unloaded condition of said spring and other ones of said connecting bars extending obliquely upward from said alternate ones so that when said springs are subjected to downwardly directed loads said alternate connecting bars are bent downwardly and said other connecting bars are also bent downwardly so that they become inclined in the same direction as said alternate bars to thereby achieve resistance to load by both twisting of said torsion bars and bending of said connecting bars.
Claim 3
Dependent Claim
44 words
A box spring assembly according to claim 1 further including means connected to and extending between the end portions for one of said some springs maintaining said end portions in a fixed spaced relation and confining movement thereof to straight up and down directions.
Claim 4
Dependent Claim
34 words
A box spring assembly according to claim 2 wherein said means connected to and extending between said end portions comprises the body portions of other one of said spring members which form said deck.
Claim 5
Dependent Claim
39 words
A box spring assembly according to claim 2 wherein said means connected to and extending between said end portions comprises a border wire encompassing said deck and located at the ends of the body portion for said one spring.
Claim 6
Dependent Claim
59 words
A box spring assembly according to claim 1 wherein said alternate ones of said connecting bars are reversely inclined relative to said other ones of said connecting bars in the unloaded condition of said spring and said alternate and said other ones of said connecting bars are inclined in the same direction in the loaded condition of said spring.
Claim 7
Dependent Claim
168 words
In a box spring assembly which includes a supporting frame, a plurality of spring members mounted on said frame and connected together to form a spring deck disposed above the frame and yieldably movable toward the frame, at least some of said springs comprising substantially horizontal body portions and depending end portions, each of said end portions comprising a plurality of angularly arranged connecting bars and substantially horizontal torsion bars extending between and connecting adjacent connecting bars, alternate ones of said connecting bars being substantially nearer to being horizontal in the unloaded condition of said spring than the remaining ones of said connecting bars, said remaining connecting bars extending obliquely upwardly from said alternate ones so that said remaining ones are reversely inclined relative to said alternate ones, said connecting bars being arranged relative to each other so that when said springs are subjected to downwardly directed loads said alternate connecting bars are bent downwardly so that they become inclined in the same direction as said remaining bars.
Claim 8
Dependent Claim
168 words
In a box spring assembly which includes a supporting frame, a plurality of spring members mounted on said frame and connected together to form a spring deck disposed above the frame and yieldably movable toward the frame, at least some of said springs comprising substantially horizontal body portions and depending end portions, each of said end portions comprising a plurality of angularly arranged connecting bars and substantially horizontal torsion bars extending between and connecting adjacent connecting bars, alternate ones of said connecting bars being substantially nearer to being horizontal in the unloaded condition of said spring than the remaining ones of said connecting bars, said remaining connecting bars extending obliquely upwardly from said alternate ones so that said remaining ones are reversely inclined relative to said alternate ones, said connecting bars being arranged relative to each other so that when said springs are subjected to downwardly directed loads said alternate connecting bars are bent downwardly so that they become inclined in the same direction as said remaining bars.
Claim 9
Dependent Claim
64 words
The structure according to claim 6 wherein each of said end portions includes a substantially horizontal mounting foot, there are two of such alternate ones of said connecting bars and three of said remaining connecting bars, the lower one of said remaining connecting bars being connected to and extending between said foot and the lower one of said alternate ones of said connecting bars.
Claim 10
Dependent Claim
14 words
The structure according to claim 7 wherein said lower connecting bar is substantially upright.
Claim 11
Dependent Claim
25 words
The structure according to claim 7 wherein said lower one of said connecting bars is substantially parallel to the remaining ones of said connecting bars.
Claim 12
Dependent Claim
137 words
A spring member comprising a one piece wire bent to form a substantially horizontal body portion having depending end portions, each of said end portions comprising a plurality of angularly arranged connecting bars and substantially horizontal torsion bars extending between and connecting adjacent connecting bars, alternate ones of said connecting bars, including the uppermost connecting bar that is adjacent said body portion, being oblique and inclined downwardly and inwardly, said alternate ones of said connecting bars being arranged in a substantially parallel relation, the remaining ones of said connecting bars being inclined to a substantially lesser degree than said first mentioned connecting bars, whereby on loading of said spring, said remaining connecting bars are moved through a substantially greater angle than said first mentioned bars toward positions inclined in the same general direction as said oblique bars.
Claim 13
Dependent Claim
137 words
A spring member comprising a one piece wire bent to form a substantially horizontal body portion having depending end portions, each of said end portions comprising a plurality of angularly arranged connecting bars and substantially horizontal torsion bars extending between and connecting adjacent connecting bars, alternate ones of said connecting bars, including the uppermost connecting bar that is adjacent said body portion, being oblique and inclined downwardly and inwardly, said alternate ones of said connecting bars being arranged in a substantially parallel relation, the remaining ones of said connecting bars being inclined to a substantially lesser degree than said first mentioned connecting bars, whereby on loading of said spring, said remaining connecting bars are moved through a substantially greater angle than said first mentioned bars toward positions inclined in the same general direction as said oblique bars.
Claim 14
Dependent Claim
21 words
The structure according to claim 10 wherein said remaining connecting bars are nearly horizontal in the unloaded condition of said spring.
Claim 15
Dependent Claim
32 words
The structure according to claim 11 further including means connected to and extending between said end portions confining movement of the ends of said body portion to straight up and down directions.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |