US3092533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making a condensed filamentous mat
Assignee: American Air Filter Co Inc
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Filing: 1959-06-25
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Granted: 1963-06-04
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Expires: 1979-06-25
Abstract
No abstract record available.
Inventors
- 👤 Beckner Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:25
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/07; B; B01; B01D; B01D29/00; B01D29/11; B01D29/111; B01D29/13; B01D29/15; B01D29/21; B01D29/216; B01D39/00; B01D39/14; B01D46/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/249921; Y10T428/249922
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
179 words
THE METHOD OF MAKING A FILAMENTOUS MAT, COMPRISING: TRANSVERSELY RECIPROCATING A FURNACE, FROM WHICH SEPARATE GLASS FILAMENTS ARE DISCHARGED, AXIALLY BACK AND FOURTH ALONG A DRUM; ROTATING THE FRUM A MULTIPLICITY OF TIMES DURING EACH TRAVERSE OF SAID FURNACE; GATHERING A FIRST PORTION OF SAID FILAMENTS, IN A ZONE INTERMEDIATE SAID FURNACE AND SAID DRUM, INTO AT LEAST ONE SUBSTANTIALLY FLAT RIBBON OF SEPARATE FILAMENTS LYING CLOSELY TOGETHER RELATIVE TO THE SPACING OF THE REMAINING PORTION OF SAID FILAMENTS AS THEY ARE DISCHARGED FROM SAID FURNACE; FEEDING SAID FIRST PORTION OF CLOSELY SPACED FILAMENTS ONTO SAID DRUM IN RELATIVELY CLOSELY SPACED RIBBON FORM; AND SIMULTANEOUSLY FEEDING THE REMAINING PORTION OF FILAMENTS DIRECTLY FROM SAID FURNACE ONTO SAID DRUM ADJACENT SAID FIRST PORTION OF CLOSELY SPACED FILAMENTS IN RELATIVELY WIDELY SPACED FORM APPROXIMATELY EQUALLING THE SPACING BETWEEN INDIVIDUAL FILAMENTS DISCHARGED FROM SAID FRUANCE; AXIALLY SLITTING THE CYLINDRICAL FILAMENTOUS MAT SO FORMED ON SAID DRUM AND REMOVING IT THEREFROM TO FORM A PLANAR MAT; AND STRETCHING SAID PLANAR MAT IN A DIRECTION TRANSVERSE TO THE GENERAL LAY OF THE SAID FILAMENTS.
Claim 2
Independent Claim
179 words
THE METHOD OF MAKING A FILAMENTOUS MAT, COMPRISING: TRANSVERSELY RECIPROCATING A FURNACE, FROM WHICH SEPARATE GLASS FILAMENTS ARE DISCHARGED, AXIALLY BACK AND FOURTH ALONG A DRUM; ROTATING THE FRUM A MULTIPLICITY OF TIMES DURING EACH TRAVERSE OF SAID FURNACE; GATHERING A FIRST PORTION OF SAID FILAMENTS, IN A ZONE INTERMEDIATE SAID FURNACE AND SAID DRUM, INTO AT LEAST ONE SUBSTANTIALLY FLAT RIBBON OF SEPARATE FILAMENTS LYING CLOSELY TOGETHER RELATIVE TO THE SPACING OF THE REMAINING PORTION OF SAID FILAMENTS AS THEY ARE DISCHARGED FROM SAID FURNACE; FEEDING SAID FIRST PORTION OF CLOSELY SPACED FILAMENTS ONTO SAID DRUM IN RELATIVELY CLOSELY SPACED RIBBON FORM; AND SIMULTANEOUSLY FEEDING THE REMAINING PORTION OF FILAMENTS DIRECTLY FROM SAID FURNACE ONTO SAID DRUM ADJACENT SAID FIRST PORTION OF CLOSELY SPACED FILAMENTS IN RELATIVELY WIDELY SPACED FORM APPROXIMATELY EQUALLING THE SPACING BETWEEN INDIVIDUAL FILAMENTS DISCHARGED FROM SAID FRUANCE; AXIALLY SLITTING THE CYLINDRICAL FILAMENTOUS MAT SO FORMED ON SAID DRUM AND REMOVING IT THEREFROM TO FORM A PLANAR MAT; AND STRETCHING SAID PLANAR MAT IN A DIRECTION TRANSVERSE TO THE GENERAL LAY OF THE SAID FILAMENTS.
Claim 3
Dependent Claim
136 words
IN APPARATUS FOR SPINNING FILAMENTALRY MAATERIAL ONTO A FORTATING DRUM, A MATERIAL MELTING FURNACE HAVING A SUBSTANTIALLY STRAIGHT-LINE ROW OF ORIFICES IN ITS BASE WALL THROUGH WIICH FILAMENTS DESCENT, MEANS FOR MOVING SAID FURNACE IN A RECIPROCATORY PATH GENERALLY OVERLYING THE DOWNTURNING FACE OF SAID DRUM, FILAMENT DISPLACING MEANS, DEPENDING FROM SAID FURNACE FOR SIMULTANEOUS MOVEMENT THEREWITH AND DISPOSED BETWEEN SAD FURNACE AND SAID DRUM, PRESENTING A FILAMENT GATHERING SURFACE SUBSTANTIALLY AT A RIGHT ANGLE TO BOTH SAID ROW AND SAID FILAMENTS, MEANS FOR SELECTEVELY POSITIONING SAID FILAMENT DISPLACING MEANS RELATIVE TO SAID FURNACE TO DISPLACE A PORTION ONLY OF SAID FILAMENTS OUT OF A DIRECT PATH FROM SAID FURNACE TO SAID DRUM TO FORM A SUBSTANTIALLY FLAT RIBBON OF CLOSELY SPACED FILAMENTS RELATIVE TO THE SPACING OF THE FILAMENTS AS THEY ISSUE FROM SAID FURNACE.
Claim 4
Dependent Claim
136 words
IN APPARATUS FOR SPINNING FILAMENTALRY MAATERIAL ONTO A FORTATING DRUM, A MATERIAL MELTING FURNACE HAVING A SUBSTANTIALLY STRAIGHT-LINE ROW OF ORIFICES IN ITS BASE WALL THROUGH WIICH FILAMENTS DESCENT, MEANS FOR MOVING SAID FURNACE IN A RECIPROCATORY PATH GENERALLY OVERLYING THE DOWNTURNING FACE OF SAID DRUM, FILAMENT DISPLACING MEANS, DEPENDING FROM SAID FURNACE FOR SIMULTANEOUS MOVEMENT THEREWITH AND DISPOSED BETWEEN SAD FURNACE AND SAID DRUM, PRESENTING A FILAMENT GATHERING SURFACE SUBSTANTIALLY AT A RIGHT ANGLE TO BOTH SAID ROW AND SAID FILAMENTS, MEANS FOR SELECTEVELY POSITIONING SAID FILAMENT DISPLACING MEANS RELATIVE TO SAID FURNACE TO DISPLACE A PORTION ONLY OF SAID FILAMENTS OUT OF A DIRECT PATH FROM SAID FURNACE TO SAID DRUM TO FORM A SUBSTANTIALLY FLAT RIBBON OF CLOSELY SPACED FILAMENTS RELATIVE TO THE SPACING OF THE FILAMENTS AS THEY ISSUE FROM SAID FURNACE.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |