Patent US5023970A successfully refreshed from Google Patents.
US5023970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bed cover
Assignee: Individual
•
Filing: 1989-03-14
•
Granted: 1991-06-18
•
Expires: 2009-03-14
Abstract
Abstract A cover, in particular a bed cover, which comprises a case having two outer sheets, a filling and a thin sheet or foil located between the outer sheets is described, characterized in that the thin sheet is provided with a plurality of slits. Advantageously, the thin sheet comprises a plastic material, preferably having a vapor deposited aluminum coating. This results in a cover whereby the transport of heat through the cover is appreciably reduced.
Inventors
- 👤 Gunter Tesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:43
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/02; A47G9/0207
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
84 words
A cover, in particular a bed cover, comprising: a case having two outer sheets; a filling between said two outer sheets; and a single thin sheet located between said two outer sheets, said single thin sheet being formed from a plastic material and including a plurality of slits arranged in a predetermined patterned distribution over substantially the entire surface thereof, an opening formed by each slit in said thin sheet is such that the openings are closed when the thin sheet is not stressed.
Claim 2
Dependent Claim
84 words
A cover, in particular a bed cover, comprising: a case having two outer sheets; a filling between said two outer sheets; and a single thin sheet located between said two outer sheets, said single thin sheet being formed from a plastic material and including a plurality of slits arranged in a predetermined patterned distribution over substantially the entire surface thereof, an opening formed by each slit in said thin sheet is such that the openings are closed when the thin sheet is not stressed.
Claim 3
Dependent Claim
16 words
A cover according to claim 1, wherein the thin sheet comprises of a coated plastic material.
Claim 4
Dependent Claim
15 words
A cover according to claim 2, wherein the plastic material is coated with a metal.
Claim 5
Dependent Claim
14 words
A cover according to claim 3 wherein the plastic material is coated with aluminum.
Claim 6
Dependent Claim
12 words
A cover according to claim 4 wherein the aluminum is vapor deposited.
Claim 7
Dependent Claim
16 words
A cover according to claim 1, wherein the slits are in parallel alignment with one another.
Claim 8
Dependent Claim
29 words
A cover according to claim 1, wherein the slits are arranged such that zones without slits occur between adjacent slits as viewed in the longitudinal direction of said slits.
Claim 9
Dependent Claim
20 words
A cover according to claim 7, wherein the zones without slits are perpendicular to the longitudinal direction of the slits.
Claim 10
Dependent Claim
14 words
A cover according to claim 6, wherein the slits are arranged in parallel columns.
Claim 11
Dependent Claim
23 words
A cover according to claim 9, wherein the slits within one column are offset in relation to the slits in the adjacent columns.
Claim 12
Dependent Claim
35 words
A cover according to claim 7, wherein the zones without slits extend obliquely relative to the longitudinal direction of the slits at an angle to the longitudinal direction of the slits between 30° and 60°.
Claim 13
Dependent Claim
15 words
A cover according to claim 1, wherein the slits are 2 to 10 mm long.
Claim 14
Dependent Claim
25 words
A cover according to claim 1, wherein the slits are spaced one-half to one slit length apart from each adjacent slit in the longitudinal direction.
Claim 15
Dependent Claim
21 words
A cover according to claim 9, wherein the columns are spaced one-half to one slit length apart from each adjacent column.
Claim 16
Dependent Claim
24 words
A cover according to claim 1, wherein the outer sheets are joined together through the thin sheet by quilting certain areas of the sheets.
Claim 17
Dependent Claim
19 words
A cover according to claim 15, wherein the thin sheet does not contain any slits in the quilted areas.
Claim 18
Dependent Claim
15 words
A cover according to claim 1, wherein the filling is comprised of spherical fiber aggregates.
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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) | 1994-06-17 | 1994-12-17 | 1995-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-17 | 1998-12-17 | 1999-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-17 | 2002-12-17 | 2003-06-18 | $7700.00 | Window Closed / Lapsed |