US3626040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making fused bundles of light-conducting fibers
Assignee: American Optical Corp
•
Filing: 1969-10-06
•
Granted: 1971-12-07
•
Expires: 1989-10-06
Abstract
Abstract Forming a vacuum-tight fused bundle of light-conducting fibers in a compression mold. An elongated mold having a cross cavity with a plunger closing each of the four sides thereof is filled with light-conducting fibers extending along the length of the cavity in side-by-side parallel relationship with each other. The fibers are heated to fusing temperature and the plungers are all simultaneously forced against the fibers toward a central axis through the cavity under uniform high pressure whereby a substantially uniform pattern of individual fiber distortion is produced throughout the resulting fused bundle of fibers.
Inventors
- 👤 Kazuyoshi Nagao
- 👤 Akihiko Katsura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:13
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00663; B29C; B29C43/00; B29C43/006; C; C03; C03B; C03B37/00; C03B37/10; C03B37/14; C03B37/15; B29K; B29K2105/00; B29K2105/25; B29L; B29L2011/00; B29L2011/0075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
The method according to claim 1 wherein said assembly of long and thin light-conducting fibers is made within a cross-cavity of a compression mold, heating of the bundle is accomplished by placing the mold in a furnace and said pressure against said lateral extensions of said bundle of fibers is applied by plungers in said cross-cavity which are forced toward a central axis through the cavity.
Claim 2
Dependent Claim
25 words
The method according to claim 1 further including the steps of annealing and cooling the bundle and cutting away remaining thicknesses of said lateral extensions.
References Cited (Backward Citations)
US3226589A
Cited
US3150412A
Cited
US3224851A
Cited
US3150413A
Cited
US3275428A
Cited
US3279902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |