US3602416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of collimating fibers
Assignee: RTX Corp
•
Filing: 1969-01-29
•
Granted: 1971-08-31
•
Expires: 1989-01-29
Abstract
Abstract A method for collimating a plurality of filaments into parallel, side-by-side contiguous relation including passing the filaments around first and second rollers, the rollers having their axes perpendicular to, but noncoplanar with, each other whereby all but one filament will be subjected to sidewise forces.
Inventors
- 👤 Malcolm Basche
- 👤 Urban E Kuntz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:49
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A method of collimating a plurality of continuous filaments into parallel side-by-side contiguous relationship which comprises, providing first and second cylindrical rollers with the axis of one roller perpendicular to, but not coplanar, with the axis of the other roller, supplying a plurality of at least three individual and noncontiguous filaments to be guided around each roller under tension, passing the tensioned filaments around the first roller in a generally parallel, side-by-side relationship such that no one tensioned filament overlays any other tensioned filament when passing around the first roller, extending the tensioned filaments towards said second roller whereby only one of the filaments extending from said first roller to said second roller will be perpendicular to the axis of the second roller and the remaining extended filaments on either side of said one filament will be urged towards a 90* relationship with the axis of the second roller, and further passing the extended filaments around the second roller to form a monolayer of parallel filaments.
Claim 2
Independent Claim
166 words
A method of collimating a plurality of continuous filaments into parallel side-by-side contiguous relationship which comprises, providing first and second cylindrical rollers with the axis of one roller perpendicular to, but not coplanar, with the axis of the other roller, supplying a plurality of at least three individual and noncontiguous filaments to be guided around each roller under tension, passing the tensioned filaments around the first roller in a generally parallel, side-by-side relationship such that no one tensioned filament overlays any other tensioned filament when passing around the first roller, extending the tensioned filaments towards said second roller whereby only one of the filaments extending from said first roller to said second roller will be perpendicular to the axis of the second roller and the remaining extended filaments on either side of said one filament will be urged towards a 90* relationship with the axis of the second roller, and further passing the extended filaments around the second roller to form a monolayer of parallel filaments.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |