Patent US3734803A successfully refreshed from Google Patents.
US3734803A
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Apparatus for splaying and depositing nonwoven filamentary structures
Assignee: Honeywell International Inc
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Filing: 1971-09-28
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Granted: 1973-05-22
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Expires: 1991-09-28
Abstract
Abstract An apparatus of augmenting dispersal and improving deposition of a plurality of continuous filaments onto a continuously moving surface whereby random distribution of the filaments is provided for the production of uniformly distributed nonwoven webs. A splaying device comprising a completely enclosed channel with open ends, the exit end of which is in the form of a slot having an effective shorter dimension less than 25 percent of an effective longer dimension, is positioned near the exit of an aspirator so as to spread the filaments in substantially all directions and to provide greater openness and greater random laydown of filaments.
Inventors
- 👤 W Lipscomb
- 👤 E Shelburne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:47
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/305; D; D04; D04H; D04H3/00; D04H3/02; D04H3/03; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0854
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
21 words
The apparatus of claim 1 wherein said splaying means augments filament spreading in substantially all directions from said aspirating means exit.
Claim 2
Dependent Claim
45 words
The apparatus of claim 2 wherein the cross-section of said exit end restriction has said effective shorter dimension ranging from 70 to 150 percent of the effective diameter of said aspirating means exit passageway and from 7 to 15 percent of said effective longer dimension.
Claim 3
Dependent Claim
28 words
The apparatus of claim 3 wherein said splaying means is positioned such that said shorter dimension is substantially in the direction of motion of said moving receiving surface.
Claim 4
Dependent Claim
33 words
The apparatus of claim 4 wherein a distance along the center-line of said splaying means from said entry end to said exit end ranges from 10 times to 25 times said shorter dimension.
Claim 5
Dependent Claim
23 words
The apparatus of claim 5 wherein the orifice of said aspirating means exit passageway is approximately at or immediately below said entry end.
Claim 6
Dependent Claim
30 words
The apparatus of claim 6 wherein said shorter dimension is approximately 88 percent of the diameter of said aspirating means exit passageway and approximately 11 percent of said longer dimension.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |