US3285720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing glass fibers
Assignee: —
•
Filing: —
•
Granted: 1966-11-15
•
Expires: 1983-11-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:18
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN APPARATUS FOR PRODUCING GLASS BY ATTENUATING STREAMS OF GLASS FLOWING THROUGH ORIFICES IN A BUSHING, THE IMPROVEMENT WHICH COMPRISES: AN ENCLOSURE HAVING UPPER AND BOTTOM WALLS OF A HEAT RADIATING MATERIAL, SAID ENCLOSURE HAVING AN OPENING IN THE BOTTOM WALL THEREOF, A BUSHING UNIT MOUNTED IN AND EXTENDING FROM SAID RADIANT HEAT ENCLOSURE INTO SAID OPENING TO PROVIDE FOR THE TRANSFER OF HEAT FROM SAID ENCLOSURE TO SAID BUSHING UNIT, MEANS FOR HEATING SAID HEAT RADIATING ENCLOSURE TO MAINTAIN THE INTERIOR THEREOF AND ITS CONTENTS AT A SUBSTANTIALLY UNIFORM TEMPERATURE, A CONTAINER HAVING AN OPENING THEREIN POSITIONED IN SAID ENCLOSURE AND CONTAINING A POOL OF MOLTEN GLASS, AND A HEAT CONDUCTIVE TUBE CONNECTED TO SAID BUSHING UNIT AND EXTENDING FROM A POINT BENEATH THE SURFACE OF SAID MOLTEN GLASS THROUGH THE OPENING IN SAID CON-
Claim 2
Dependent Claim
136 words
IN APPARATUS FOR PRODUCING GLASS BY ATTENUATING STREAMS OF GLASS FLOWING THROUGH ORIFICES IN A BUSHING, THE IMPROVEMENT WHICH COMPRISES: AN ENCLOSURE HAVING UPPER AND BOTTOM WALLS OF A HEAT RADIATING MATERIAL, SAID ENCLOSURE HAVING AN OPENING IN THE BOTTOM WALL THEREOF, A BUSHING UNIT MOUNTED IN AND EXTENDING FROM SAID RADIANT HEAT ENCLOSURE INTO SAID OPENING TO PROVIDE FOR THE TRANSFER OF HEAT FROM SAID ENCLOSURE TO SAID BUSHING UNIT, MEANS FOR HEATING SAID HEAT RADIATING ENCLOSURE TO MAINTAIN THE INTERIOR THEREOF AND ITS CONTENTS AT A SUBSTANTIALLY UNIFORM TEMPERATURE, A CONTAINER HAVING AN OPENING THEREIN POSITIONED IN SAID ENCLOSURE AND CONTAINING A POOL OF MOLTEN GLASS, AND A HEAT CONDUCTIVE TUBE CONNECTED TO SAID BUSHING UNIT AND EXTENDING FROM A POINT BENEATH THE SURFACE OF SAID MOLTEN GLASS THROUGH THE OPENING IN SAID CON-
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |