US4136412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air mattress
Assignee: Individual
•
Filing: 1977-11-30
•
Granted: 1979-01-30
•
Expires: 1997-11-30
Abstract
Abstract Air mattress with upper and lower sheets, the upper sheet being transparent to ultra-violet and the lower sheet being reflective.
Inventors
- 👤 Manfred Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:29
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/10; Y; Y10; Y10S; Y10S5/00; Y10S5/938; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24661
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
125 words
Air mattress comprising: (a) an upper sheet formed of a polymer plastic which is transparent to ultra-violet light, (b) a lower sheet formed of air-tight material, and (c) a layer of ultra-violet light reflective material on the upper surface of the lower sheet divided into a grid-like pattern comprising a plurality of individual reflective areas divided by non-reflective areas, the two sheets being sealed together to form a plurality of air-tight pockets in which substantial portions of the sheets are held in spaced relationship so that a person lying on the upper sheet not only receives ultra-violet light directly on his upwardly-directed surface, but also receives ultra-violet light indirectly on his downwardly-surface, at least one of the pockets being provided with a closable filling hole.
Claim 2
Dependent Claim
125 words
Air mattress comprising: (a) an upper sheet formed of a polymer plastic which is transparent to ultra-violet light, (b) a lower sheet formed of air-tight material, and (c) a layer of ultra-violet light reflective material on the upper surface of the lower sheet divided into a grid-like pattern comprising a plurality of individual reflective areas divided by non-reflective areas, the two sheets being sealed together to form a plurality of air-tight pockets in which substantial portions of the sheets are held in spaced relationship so that a person lying on the upper sheet not only receives ultra-violet light directly on his upwardly-directed surface, but also receives ultra-violet light indirectly on his downwardly-surface, at least one of the pockets being provided with a closable filling hole.
Claim 3
Dependent Claim
26 words
Air mattress as recited in claim 1, wherein the layer of ultra-violet reflective material is metal foil laminated onto the upper surface of the lower sheet.
Claim 4
Dependent Claim
31 words
Air mattress as recited in claim 1, wherein the sides of the mattress are provided with pockets which extend beyond the normal width of a human body to form border bulges.
Claim 5
Dependent Claim
26 words
Air mattress as recited in claim 1, wherein the pockets forming the border bulges are separated from interior pockets and are equipped with separate filling holes.
Claim 6
Dependent Claim
16 words
Air mattress as recited in claim 4, wherein the filling holes are provided with check valves.
Claim 7
Dependent Claim
19 words
Air mattress as recited in claim 1, wherein the upper end and lower sheets are connected through weld seams.
Claim 8
Dependent Claim
28 words
Air mattress as recited in claim 1, wherein the upper side of the lower sheet is provided with a frosted surface to enhance adherance of the reflective material.
Claim 9
Dependent Claim
28 words
Air mattress as recited in claim 1, wherein the pockets extend longitudinally of the mattress and the mattress comprises a cushion-like air chamber disposed transversely at one end.
Claim 10
Dependent Claim
33 words
Air mattress as recited in claim 8, wherein the cushion-like air chamber is separated from the pockets by an intermittent weld seam which allows air to pass freely between the chamber and pockets.
Claim 11
Dependent Claim
22 words
Air mattress as recited in claim 9, wherein adjacent free ends of the weld seams extend from the seams at diverging angles.
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) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |