US4179596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for processing fiberoptic electronic components of electronic vacuum devices
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1978-04-27
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Granted: 1979-12-18
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Expires: 1998-04-27
Abstract
Abstract In the method of manufacturing an electronic vacuum device of the type containing at least one component element comprising a matrix of solid or hollow glass fibers bonded together in a fused matrix, in which device at least one end of said matrix is located within or forms a boundary to a region in-vacuum, including the step of applying microwave energy radiation to said glass matrix for removing water vapor and other gas molecules from said matrix.
Inventors
- 👤 Lennart W. Bjork
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:14
CPC Classifications
C; C03; C03B; C03B32/00; C03B37/00; C03B37/10; C03B37/14; C03B37/15; Y; Y10; Y10S; Y10S65/00; Y10S65/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
The method of removing entrapped contaminants from an already fused matrix of solid or hollow glass fibers, comprising the following steps to be performed after fusing and subsequent cooling of the matrix: enclosing the matrix in a chamber for confining microwave energy; subjecting the matrix in the chamber to microwave energy radiation to heat the entrapped contaminants and remove them from the matrix by outgassing without substantially heating the glass fibers; and removing the gases from the chamber.
Claim 2
Independent Claim
78 words
The method of removing entrapped contaminants from an already fused matrix of solid or hollow glass fibers, comprising the following steps to be performed after fusing and subsequent cooling of the matrix: enclosing the matrix in a chamber for confining microwave energy; subjecting the matrix in the chamber to microwave energy radiation to heat the entrapped contaminants and remove them from the matrix by outgassing without substantially heating the glass fibers; and removing the gases from the chamber.
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) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |