US3900648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space filling material and method
Assignee: Individual
•
Filing: 1974-03-18
•
Granted: 1975-08-19
•
Expires: 1994-03-18
Abstract
Abstract A space filling material which incorporates a mass of synthetic filaments and a quantity of pieces of flexible foam material, preferably synthetic, distributed throughout the mass of filaments and entangled therewith and secured by such entanglement, thereby extending the contained volume of the mass, or conversely expanding the volume contained by a given mass of such synthetic filaments.
Inventors
- 👤 Imre Jack Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:40
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/30; A; A47; A47C; A47C27/00; A47C27/22; B68; B68G; B68G1/00; B32B2262/00; B32B2262/02; B32B2262/0276; B32B2307/00; B32B2307/30; B32B2307/304; B32B2553/00; B32B2601/00; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10S5/00; Y10S5/948; Y10S5/952; Y10T; Y10T428/00; Y10T428/23; Y10T428/237; Y10T428/249921; Y10T428/249953; Y10T428/249986; Y10T428/29; Y10T428/2904; Y10T428/2909; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/627; Y10T442/635; Y10T442/636; Y10T442/699
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
45 words
A LIGHT-WEIGHT, SPACE FILLING MATERIAL FOR USE AS UPHOLSTERY PADDING, PACKING MATERIAL, THERMAL INSULATION, CUSHION FILLING, AND THE LIKE COMPRISING: A MASS OF NON-WOVEN CRIMPED SYNETHETIC FILAMENTS, AND, RANDSOM SHAPED CELLULAR FOAM PARTICLES INTERSPERSED IN SAID MASS AND ENGAGED BY AND ENTANGLED IN SAID FILAMENTS.
Claim 2
Dependent Claim
45 words
A LIGHT-WEIGHT, SPACE FILLING MATERIAL FOR USE AS UPHOLSTERY PADDING, PACKING MATERIAL, THERMAL INSULATION, CUSHION FILLING, AND THE LIKE COMPRISING: A MASS OF NON-WOVEN CRIMPED SYNETHETIC FILAMENTS, AND, RANDSOM SHAPED CELLULAR FOAM PARTICLES INTERSPERSED IN SAID MASS AND ENGAGED BY AND ENTANGLED IN SAID FILAMENTS.
Claim 3
Dependent Claim
18 words
A light-weight, space filling material as claimed in claim 1, wherein said filaments comprise short cut staple filaments.
Claim 4
Dependent Claim
18 words
A light-weight, space filling material as claimed in claim 2 wherein said filaments are formed of polyester material.
Claim 5
Dependent Claim
18 words
A light-weight, space filling material as claimed in claim 1 wherein said foam particles are flexible and resilient.
Claim 6
Dependent Claim
17 words
A light-weight, space filling material as claimed in claim 4 wherein said foam particles are polyurethane foam.
Claim 7
Dependent Claim
40 words
A light-weight, space filling material as claimed in claim 1 wherein said filaments are long fibre polyester filaments arranged in at least one layer, and wherein said foam particles are entangled with filaments extending from at least one side thereof.
Claim 8
Dependent Claim
18 words
A light-weight, space filling material as claimed in claim 6 including successive layers of said long fibre filaments.
Claim 9
Dependent Claim
28 words
A light-weight, space filling material as claimed in claim 6 wherein said layer is arranged with foam particles on one side thereof and is rolled up upon itself.
Claim 10
Dependent Claim
26 words
A light-weight, space filling material as claimed in claim 1, wherein said material is arranged between upper and lower layers of crimped synthetic filament batting material.
Claim 11
Dependent Claim
25 words
A light-weight, space filling material as claimed in claim 9 wherein said filaments are short fibre staple crimped polyester, stabilised by a suitable bonding agent.
Claim 12
Dependent Claim
29 words
A light-weight, space filling material as claimed in claim 10 wherein said upper and lower batting layers are seamed together at their edges enclosing said space filling material therein.
Claim 13
Dependent Claim
40 words
A light-weight, space filling materias as claimed in claim 1 wherein said mass of filaments comprises between 5% and 20% by weight of said material, and wherein said foam particles comprise between 95% and 80% by weight of said material.
Claim 14
Dependent Claim
32 words
A light-weight, space filling material as claimed in claim 1 wherein said foam particles comprise random shaped chunks of foam having a maximum dimension of between about 0.2 inch and 1 inch.
References Cited (Backward Citations)
US3114722A
Cited
US3300421A
Cited
US3242508A
Cited
US3395066A
Cited
US3461026A
Cited
US3563837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |