US3279902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid tight sealing of glass fiber devices
Assignee: Individual
•
Filing: 1963-07-11
•
Granted: 1966-10-18
•
Expires: 1983-07-11
Abstract
No abstract record available.
Inventors
- 👤 William L Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:48
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/10; C03B37/14; C03B37/15; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE METHOD OF RENDERING LEAKPROOF A STRUCTURE EMBODYING A BUNDLE OF GLASS FIBERS ARRANGED IN PARALLE RELATION AND INTEGRALLY JOINED, SAID METHOD COMPRISING APPLYING A VITREOUS FRIT TYPE SEALING MATERIAL TO THE ENDS OF SAID FIBERS, HEATING SAID STRUCTURE TO A TEMPERATURE TO BRING SAID GLASS FIBERS TO A VISCOSITY WITHIN THE RANGE OF 103 TO 1012 POISES AND TO FLUIDIZE THE VIREOUS FRIT, SUBJECTING SAID HEATED STURCTURE TO FLUID PRESSURE OF UPWARDS OF SEVERAL THOUSAND POUNDS PER SQUARE INCH, MAINRININF SAID PRESSURE TO ELIMINATE INTER-FIBER INTERSTICES, REDUCING THE TEMPERATURE UNTIL THE STRUCTURE HAS BECOME RIGID, AND THEN REMOVING THE FLUID PRESSURE.
Claim 2
Independent Claim
102 words
THE METHOD OF RENDERING LEAKPROOF A STRUCTURE EMBODYING A BUNDLE OF GLASS FIBERS ARRANGED IN PARALLE RELATION AND INTEGRALLY JOINED, SAID METHOD COMPRISING APPLYING A VITREOUS FRIT TYPE SEALING MATERIAL TO THE ENDS OF SAID FIBERS, HEATING SAID STRUCTURE TO A TEMPERATURE TO BRING SAID GLASS FIBERS TO A VISCOSITY WITHIN THE RANGE OF 103 TO 1012 POISES AND TO FLUIDIZE THE VIREOUS FRIT, SUBJECTING SAID HEATED STURCTURE TO FLUID PRESSURE OF UPWARDS OF SEVERAL THOUSAND POUNDS PER SQUARE INCH, MAINRININF SAID PRESSURE TO ELIMINATE INTER-FIBER INTERSTICES, REDUCING THE TEMPERATURE UNTIL THE STRUCTURE HAS BECOME RIGID, AND THEN REMOVING THE FLUID PRESSURE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |