Patent US3829918A successfully refreshed from Google Patents.
US3829918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for increasing the air pressure within self-inflated hollow bodies for use as cushions and for like purposes
Assignee: Individual
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Filing: 1972-02-22
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Granted: 1974-08-20
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Expires: 1992-02-22
Abstract
Abstract A hollow, airtight, box-like inflated body adapted to serve as an air filled cushion, pillow, mattress or the like and comprising flexible, air-impervious top and bottom portions of substantially the same size and configuraton with a flexible airimpervious member extending between said top and bottom portions with the top and bottom edges thereof connected in airtight relation to the marginal edges of said top and bottom portions, respectively and of a height sufficient to form an air-filled body of the desired height, is provided with a relatively stiff member or members extending along a portion of the length of said air-impervious member with the upper and lower edges thereof connected to the adjacent edges of said top and bottom portions, respectively, and which relatively stiff member or members is or are provided with air inlet and an outlet valves of the desired construction in communication with the interior of said box-like body, movement of said stiff member or members from a horizontal position to a vertical position sucking air into said box-like body through said air inlet valve to inflate the box-like body, and continued movement of said stiff member or members from vertical to a horizontal position creating a pumping action causing an increase of the air pressure within said hollow boxlike inflated body, means being provided for retaining said stiff member or members in horizontal position when the air pressure within said box-like body has been increased to the desired degree. The interior of the box-like inflated body may be provided with a plurality of parallel side-by-side open-ended tube-like structures of semi-circular or circular transverse cross section.
Inventors
- 👤 P Stamberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:24
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/084; A47G; A47G9/00; A47G9/10; A47G9/1027
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
320 words
A hollow, airtight, box-like, inflated body adapted to serve as an air filled cushion, pillow, mattress or the like comprising flexible, air-impervious top and bottom portions of substantially the same size and configuration, a flexible air-impervious member extending between said top and bottom portions with the top and bottom edges thereof connected in airtight relation to the marginal edges of said top and bottom portions, respectively, and of a height sufficient to form an air filled body of the desired height; a stiff member extending along a portion of the length of said air-impervious member and having its upper and lower edges connected to the adjacent edges of said top and bottom portions, respectively, said stiff member when said top and bottom portions are in juxtaposed positions being disposed in substantially parallel relation to the planes of said top and bottom portions and when moved to a position at right angles to said planes causing said top portion to be moved from its juxtaposed position with respect to said bottom portion to a position in parallel, spaced relation to said bottom portion to form the air-inflated, hollow body defined by said top and bottom portions and said airimpervious member; a valve-controlled air inlet and air outlet in communication with the interior of said hollow body which when open permits air to be sucked into said hollow body and when closed retains the air therein, movement of said stiff member from its position at right angles to the plane of said bottom portion to A position substantially parallel to said plane after said hollow body has been inflated and the air outlet valve has been closed, forcing the air within said hollow body adjacent said stiff member into the remaining portion of said body to increase the air pressure therein; and means for retaining said stiff member in its position overlying and substantially parallel to the plane of said top portion.
Claim 2
Dependent Claim
320 words
A hollow, airtight, box-like, inflated body adapted to serve as an air filled cushion, pillow, mattress or the like comprising flexible, air-impervious top and bottom portions of substantially the same size and configuration, a flexible air-impervious member extending between said top and bottom portions with the top and bottom edges thereof connected in airtight relation to the marginal edges of said top and bottom portions, respectively, and of a height sufficient to form an air filled body of the desired height; a stiff member extending along a portion of the length of said air-impervious member and having its upper and lower edges connected to the adjacent edges of said top and bottom portions, respectively, said stiff member when said top and bottom portions are in juxtaposed positions being disposed in substantially parallel relation to the planes of said top and bottom portions and when moved to a position at right angles to said planes causing said top portion to be moved from its juxtaposed position with respect to said bottom portion to a position in parallel, spaced relation to said bottom portion to form the air-inflated, hollow body defined by said top and bottom portions and said airimpervious member; a valve-controlled air inlet and air outlet in communication with the interior of said hollow body which when open permits air to be sucked into said hollow body and when closed retains the air therein, movement of said stiff member from its position at right angles to the plane of said bottom portion to A position substantially parallel to said plane after said hollow body has been inflated and the air outlet valve has been closed, forcing the air within said hollow body adjacent said stiff member into the remaining portion of said body to increase the air pressure therein; and means for retaining said stiff member in its position overlying and substantially parallel to the plane of said top portion.
Claim 3
Dependent Claim
62 words
A hollow, airtight, box-like air-inflated body as defined in claim 1 wherein the height of said stiff member is greater than the height of said air-impervious member, and the height of said air-imperivous member adjacent the ends of said stiff member is increased in accordance with the increased height of the said stiff member to form a completely enclosed airtight hollow body.
Claim 4
Dependent Claim
114 words
A hollow airtight, box-like, air-inflated body as defined in claim 1 wherein a one-way check valve is provided in addition to the valve-controlled air inlet and air outlet, which one-way valve permits air to be drawn into the hollow, box-like air filled body after the air outlet is closed and the body has been initially inflated to permit said stiff member to be moved repeatedly from its right angle position with respect to the plane of said bottom portion to a position in overlying parallel relation to the plane of said top and bottom portions to create a pumping action to increase the air pressure within the hollow, air-inflated body to the desired degree.
Claim 5
Dependent Claim
60 words
A hollow, airtight, box-like air-inflated body as defined in claim 3 in which means are provided for retaining said stiff member in its position in overlying parallel relation to the plane of said top and bottom portion upon completion of the pumping action effected thereby after the air pressure within the hollow body has been increased to the desired degree.
Claim 6
Dependent Claim
60 words
A hollow airtight, box-like air-inflated body as defined in claim 3 wherein the air inlet, air outlet and one-way check valve are combined in a single valve structure in which the one-way check valve may be manually manipulated to render its one-way function inoperative to permit the escape of air therethrough when the hollow body is being collapsed or deflated.
Claim 7
Dependent Claim
69 words
A hollow airtight, box-like air-inflated body as defined in claim 1 having within said hollow body a series of flexible, expansible, longitudinally-extending, closely-adjacent open-ended tube-like members in communication at their ends with each other and with the air pressure within said inflated hollow body and inflated and expanded by said air pressure therein to form along the surface of said top portion a series of longitudinally-extending ridges or corrugations.
Claim 8
Dependent Claim
55 words
A hollow, airtight, box-like air-inflated body as defined in claim 6, wherein said series of tube-like members are formed by a plurality of longitudinally extending members of semi-circular transverse cross section having their longitudinal edge portions adhesively connected throughout the length thereof and in closely arranged position to the bottom portion of said box-like body.
Claim 9
Dependent Claim
62 words
A hollow, airtight box-like air-inflated body as defined in claim 6, wherein said series of tube-like members is formed by a plurality of longitudinally extending members each of semi-circular transverse cross section arranged in inverted, superimposed relation and having their longitudinal abutting edge portions adhesively connected throughout the length thereof to form a series of tube-like members of circular transverse cross section.
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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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |