US4896389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable air mattress
Assignee: S S I Medical Services of Canada Inc
•
Filing: 1988-06-10
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Granted: 1990-01-30
•
Expires: 2008-06-10
Abstract
Abstract Disclosed is a one-piece inflated air mattress that can be used as such or laid over a hospital bed mattress. Its body is formed of a series of transverse parallel pillow-like air tunnels connected at their ends with a pair of lengthwise distribution channels. The body has an inlet end, to which an air pressure source is connected, and a terminal end; the distribution channels running between the two ends and tapering from one end to the other, being wider at the inlet end than at the terminal end. An open-ended plenum conduit, located at the inlet end of the body, communicates at its ends respectively with said distribution channels.
Inventors
- 👤 Paul Chamberland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:36
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/057; A61G7/05769; A61G7/05784
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
192 words
An inflatable air mattress formed from a one piece elongated body having an air inlet end and a terminal end comprising: a substantially planar lower portion having a longitudinal air distribution channel along each longitudinal side; an upper portion comprising a plurality of straight elongated pillow-like air tunnels; said air tunnels disposed transverse of said body adjacent to and parallel with each other; said air tunnels being sealed from said lower portion along substantially all their length; each of said air tunnels having an opening at each end thereof to be in fluid communication with said distribution channels; each of said air tunnels being integrally formed with a small air pocket at each end, each said pocket extending over and covering the adjacent distribution channel, thereby to increase the width of the mattress; an open transverse plenum conduit at an inlet end of said body, said conduit opening into said distribution channels, where by said channels, said air tunnels and said plenum conduit communicates with each other; and air pressure source means operatively connected to said transverse plenum conduit for supplying said conduit, said channels and said tunnels with pressurized inflation air.
Claim 2
Dependent Claim
192 words
An inflatable air mattress formed from a one piece elongated body having an air inlet end and a terminal end comprising: a substantially planar lower portion having a longitudinal air distribution channel along each longitudinal side; an upper portion comprising a plurality of straight elongated pillow-like air tunnels; said air tunnels disposed transverse of said body adjacent to and parallel with each other; said air tunnels being sealed from said lower portion along substantially all their length; each of said air tunnels having an opening at each end thereof to be in fluid communication with said distribution channels; each of said air tunnels being integrally formed with a small air pocket at each end, each said pocket extending over and covering the adjacent distribution channel, thereby to increase the width of the mattress; an open transverse plenum conduit at an inlet end of said body, said conduit opening into said distribution channels, where by said channels, said air tunnels and said plenum conduit communicates with each other; and air pressure source means operatively connected to said transverse plenum conduit for supplying said conduit, said channels and said tunnels with pressurized inflation air.
Claim 3
Dependent Claim
28 words
The inflatable mattress according to claim 1, wherein said air tunnels each have outer walls transverse of the body, so that adjacent air tunnels have separate outer walls.
Claim 4
Dependent Claim
20 words
The inflatable mattress according to claim 2, wherein the distribution channels taper from said inlet end to said terminal end.
Claim 5
Dependent Claim
49 words
An air mattress as claimed in claim 1, wherein said air pressure source means comprise: a pressure-adjustable compressor assembly, and an air inlet conduit having one end connected to said compressor assembly and another end connected to said plenum conduit; said air-inlet conduit being devoid of air-flow control devices.
Claim 6
Dependent Claim
16 words
An air mattress as claimed in claim 4, wherein said air tunnels are of equal size.
Claim 7
Dependent Claim
38 words
An air mattress as claimed in claim 5, wherein each air tunnel has, over the major portion thereof, an inverted U-shape, in cross-section, with pair of straight legs, a dome-shaped bight at the top and a flat bottom.
Claim 8
Dependent Claim
18 words
An air mattress as claimed in claim 6, wherein said dome-shaped bight is perforated with air bleed holes.
Claim 9
Dependent Claim
54 words
An air mattress as claimed in claim 1, further comprising contoured end flaps at said inlet end and at said terminal end, said flaps projecting down from said body at said ends and along a portion of the sides of said body for tucking in said body around the ends of a bed mattress.
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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) | 1993-01-29 | 1993-07-31 | 1994-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-29 | 1997-07-31 | 1998-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-29 | 2001-07-31 | 2002-01-30 | $7700.00 | Window Closed / Lapsed |