US4464428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed cell foamed material having interior canals filled with substances
Assignee: WAY LEATHER Co Inc DBA WAY DISTRIBUTORS 150 GOULD ST NEEDHAM HEIGHTS MA A CORP OF
•
Filing: 1982-07-23
•
Granted: 1984-08-07
•
Expires: 2002-07-23
Abstract
Abstract A web of a cross-linked plastic material foamed in a closed-cell structure or configuration, having substantially parallel upper and lower surfaces, wherein canals penetrate the foamed material and extend and open to at least one of said upper and lower surfaces, and wherein substances can be introduced into the canals to impart beneficial properties to the web of foamed material.
Inventors
- 👤 Heinrich Ebert
- 👤 Manfred Noe
- 👤 Kurt Wind
- 👤 Wilhelm Kirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:58
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249986
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
87 words
In an improved web consisting of a crosslinked plastic material foamed in a closed-cell configuration, said web having substantially parallel upper and lower surfaces, the improvement comprising providing said web with a multiplicity of interior canals which extend and open to at least one of said upper and lower surfaces of said web so as to form distributed patterned interruptions on said surfaces, said canals being filled with subsequently introduced substances selected from the group consisting of solid particulate bodies, bundles of fibers and bundles of filaments.
Claim 2
Dependent Claim
87 words
In an improved web consisting of a crosslinked plastic material foamed in a closed-cell configuration, said web having substantially parallel upper and lower surfaces, the improvement comprising providing said web with a multiplicity of interior canals which extend and open to at least one of said upper and lower surfaces of said web so as to form distributed patterned interruptions on said surfaces, said canals being filled with subsequently introduced substances selected from the group consisting of solid particulate bodies, bundles of fibers and bundles of filaments.
Claim 3
Dependent Claim
32 words
The web of foamed material according to claim 1 wherein said canals extend and open to both of said upper and lower surfaces and merge within the body of said foamed material.
Claim 4
Dependent Claim
30 words
The web of foamed material according to claim 1 wherein said canals extend perpendicularly through said foamed material and extend and open to both of said upper and lower surfaces.
Claim 5
Dependent Claim
31 words
The web of foamed material according to claim 1 wherein said canals extend at angles within said foamed material and extend and open to both of said upper and lower surfaces.
Claim 6
Dependent Claim
34 words
The web of foamed material according to claim 1 wherein the openings of said canals to at least one of said upper and lower surfaces defines on said surface a circular or polygonal opening.
Claim 7
Dependent Claim
27 words
The web of foamed material according to claim 1 wherein said canals contain introduced substances to impart increased sound and/or moisture absorption properties to said foamed material.
Claim 8
Dependent Claim
32 words
The web of foamed material, according to claim 1 wherein said solid particulate bodies are selected from the group consisting of wood, leather, activated carbon, sand, chalk, metal, cotton and sheep's wool.
Claim 9
Dependent Claim
25 words
The web of foamed material according to claim 1 wherein said solid particles are selected from the group consisting of plastic, soap, corundum and cellulose.
Claim 10
Dependent Claim
17 words
The web of foamed material according to claim 1 wherein said solid particulate bodies are substantially spherical.
Claim 11
Dependent Claim
21 words
The web of foamed material according to claim 1 wherein said solid particulate bodies are shaped in the form of columns.
Claim 12
Dependent Claim
33 words
The web of foamed material according to claim 1 wherein said solid particulate bodies have a surface selected from the group consisting of a smooth surface and a surface structured in relief fashion.
Claim 13
Dependent Claim
34 words
The web of foamed material according to claim 1 wherein at least some of the ends of said fibers and/or filaments protrude beyond the openings of said canals to said upper and/or lower surfaces.
Claim 14
Dependent Claim
25 words
The web of foamed material according to claim 12 wherein said protruding ends are connected to each other and/or to the web of foamed material.
Claim 15
Dependent Claim
33 words
The web of foamed material according to claim 12 wherein said protruding ends are bound into a member selected from the group consisting of a nonwoven fabric, a woven fabric and a foil.
Claim 16
Dependent Claim
20 words
The web of foamed material according to claim 1 wherein said fibers and/or filaments are wrinkled at least in part.
Claim 17
Dependent Claim
24 words
The web of foamed material according to claim 1 wherein said introduced substances are at least partially cemented to the walls of said canals.
Claim 18
Dependent Claim
26 words
The web of foamed material according to claim 1 wherein at least one of said upper and lower surfaces is covered by an air-impermeable foil layer.
References Cited (Backward Citations)
US3352739A
Cited
US3357516A
Cited
US3649430A
Cited
US4009315A
Cited
GB1271101A
Cited
US3867240A
Cited
US4020207A
Cited
US4125664A
Cited
US4199639A
Cited
US4183984A
Cited
US4131703A
Cited
JPS55111253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |