Patent US4052820A successfully refreshed from Google Patents.
Patent US3071946A successfully refreshed from Google Patents.
US3071946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing hollow glass articles
Assignee: Associated Electrical Industries Ltd
•
Filing: 1958-09-15
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Granted: 1963-01-08
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Expires: 1978-09-15
Abstract
No abstract record available.
Inventors
- 👤 Watson Wilfred Herbert
- 👤 Blood George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:48
CPC Classifications
C; C03; C03B; C03B9/00; C03B9/30; C03B9/32; C03B9/33; Y; Y10; Y10S; Y10S65/00; Y10S65/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A MACHINE PROCESS FOR THE MANUFACTURE FROM A VISCOUS SETTABLE MATERIAL OF A STEMMED AND FOOTED HOLLOW ARTICLE, COMPRISING THE STEPS OF SUBJECTING A CHARGE OF SAID MATERIAL TO A PRELIMINARY BLOWING ACTION, SUSPENDING THE CHARGE OVER A SURFACE ON TO WHICH ITS LOWER END IS ALLOWED TO SETTLE AS THE CHARGE ELONGATES, SUBSEQUENTLY SUBJECTING THE CHARGE TO A FINAL BLOWING ACTION IN A MOULD BY WHICH THE HOLLOW BOWL OF THE ARTICLE IS BLOWN TO SHAPE, RAISING THE BASE OF THE MOULD WITH RESPECT TO THE REMAINDER THEREOF TO PRESS-MOULD THE SETTLED LOWER END OF THE CHARGE INTO A SOLID FOOT UNITED WITH THE HOLLOW BOWL PORTION THROUGH AN INTERVENING PART OF CONSTRICTED CROSSSECTION AND OF LENGTH LESS THAN THAT REQUIRED FOR THE STEMOF THE FINISHED ARTICLE, SEPARATING THE ARTICLE FROM THE MOULD WHEN THE BOWL PORTION AND THE FOOT HAVE SET BUT WHILE SAID INTERVENING PART IS STILL SUBSTANTIALLY IN A WORKABLE CONDITION, AND SUBJECTING SAID INTERVENING PART IN A
Claim 2
Dependent Claim
162 words
A MACHINE PROCESS FOR THE MANUFACTURE FROM A VISCOUS SETTABLE MATERIAL OF A STEMMED AND FOOTED HOLLOW ARTICLE, COMPRISING THE STEPS OF SUBJECTING A CHARGE OF SAID MATERIAL TO A PRELIMINARY BLOWING ACTION, SUSPENDING THE CHARGE OVER A SURFACE ON TO WHICH ITS LOWER END IS ALLOWED TO SETTLE AS THE CHARGE ELONGATES, SUBSEQUENTLY SUBJECTING THE CHARGE TO A FINAL BLOWING ACTION IN A MOULD BY WHICH THE HOLLOW BOWL OF THE ARTICLE IS BLOWN TO SHAPE, RAISING THE BASE OF THE MOULD WITH RESPECT TO THE REMAINDER THEREOF TO PRESS-MOULD THE SETTLED LOWER END OF THE CHARGE INTO A SOLID FOOT UNITED WITH THE HOLLOW BOWL PORTION THROUGH AN INTERVENING PART OF CONSTRICTED CROSSSECTION AND OF LENGTH LESS THAN THAT REQUIRED FOR THE STEMOF THE FINISHED ARTICLE, SEPARATING THE ARTICLE FROM THE MOULD WHEN THE BOWL PORTION AND THE FOOT HAVE SET BUT WHILE SAID INTERVENING PART IS STILL SUBSTANTIALLY IN A WORKABLE CONDITION, AND SUBJECTING SAID INTERVENING PART IN A
References Cited (Backward Citations)
US1603524A
Cited
US1908306A
Cited
US1972717A
Cited
US2276399A
Cited
US2331413A
Cited
GB617445A
Cited
GB678686A
Cited
US2790994A
Cited
US2655766A
Cited
FR1119739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |