Patent US4371999A successfully refreshed from Google Patents.
US4371999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air mattresses
Assignee: Individual
•
Filing: 1980-11-18
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Granted: 1983-02-08
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Expires: 2000-11-18
Abstract
Abstract An air mattress includes a top and a bottom wall connected by a plurality of longitudinally-extending, laterally-spaced vertical partitions which divide the mattress into a plurality of longitudinal air compartments. The side edges of each partition are secured to the top and bottom walls by means of a heat sealed joint.
Inventors
- 👤 Keith Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:53
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/087
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
In an air mattress having top and bottom walls that are connected by a plurality of longitudinally-extending partitions which extend from adjacent one end wall of the mattress to a point adjacent the other end wall of the mattress and are secured to the top and bottom walls by seams that connect longitudinal flanges along each edge of each partition to the adjacent top or bottom wall, the improvement which comprises means defining a recess in each end of each partition to provide a pair of spaced flange portions adapted to be bent along the adjacent end wall of the mattress with its end portions secured to the end wall.
Claim 2
Dependent Claim
110 words
In an air mattress having top and bottom walls that are connected by a plurality of longitudinally-extending partitions which extend from adjacent one end wall of the mattress to a point adjacent the other end wall of the mattress and are secured to the top and bottom walls by seams that connect longitudinal flanges along each edge of each partition to the adjacent top or bottom wall, the improvement which comprises means defining a recess in each end of each partition to provide a pair of spaced flange portions adapted to be bent along the adjacent end wall of the mattress with its end portions secured to the end wall.
Claim 3
Dependent Claim
144 words
An inflatable mattress comprising a rectangular top wall having downturned marginal ends and sides, a bottom wall having upturned marginal ends and sides, means securing each marginal end of said top wall to an end of said bottom wall to provide spaced end walls, means securing each marginal side wall of said top wall to one of said side walls of said bottom wall to provide spaced side walls, a plurality of elongate partitions disposed longitudinally between said bottom and top walls, means securing one longitudinal edge of each partition to said top wall and the other longitudinal edge to said bottom wall, means defining a recess in the central portion of each end of each partition to provide two spaced tabs at the edge of each partition end portion, and means securing said tabs to the inner surface of an adjacent end wall.
Claim 4
Dependent Claim
144 words
An inflatable mattress comprising a rectangular top wall having downturned marginal ends and sides, a bottom wall having upturned marginal ends and sides, means securing each marginal end of said top wall to an end of said bottom wall to provide spaced end walls, means securing each marginal side wall of said top wall to one of said side walls of said bottom wall to provide spaced side walls, a plurality of elongate partitions disposed longitudinally between said bottom and top walls, means securing one longitudinal edge of each partition to said top wall and the other longitudinal edge to said bottom wall, means defining a recess in the central portion of each end of each partition to provide two spaced tabs at the edge of each partition end portion, and means securing said tabs to the inner surface of an adjacent end wall.
Claim 5
Dependent Claim
47 words
A mattress according to claim 2 wherein said means for securing the longitudinal edges of each partition to the top or bottom wall and the means for securing said tabs to said end walls is a seam formed by applying heat and pressure along a confined area.
Claim 6
Dependent Claim
56 words
A mattress according to claim 2 wherein said means for securing the longitudinal edges of each partition to the top or bottom wall and the means for securing said tabs to said end walls are seams formed by vulcanizing a related strip of said top, bottom, and end walls to the selected parts of said partitions.
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) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |