US3141752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication of glass molds
Assignee: OI Glass Inc
•
Filing: 1960-05-03
•
Granted: 1964-07-21
•
Expires: 1980-05-03
Abstract
No abstract record available.
Inventors
- 👤 Robert H Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:17
CPC Classifications
C; C03; C03B; C03B9/00; C03B9/13; C03B9/14; C03B9/16; C03B9/165; C03B40/00; C03B40/02; C03B40/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
THE METHOD OF FORMING CHARGES OF MOLTEN GLASS INTO ARTICLES IN A MOLD, COMPRISING THE STEPS OF: (1) BRINGING THE MOLD TO LOADING POSITION AND THEREBY PROVIDING A FORMING CAVITY FOR THE ARTICLE, SAID CAVITY HAVING AN UPPER OPENING FOR LOADING A CHARGE OF GLASS, (2) PLACING A LOADING FUNNEL IN REGISTRY OVER SAID OPENING OF THE MOLD FOR GLASS LOADING COMMUNICATION WITH SAID CAVITY, (3) INTRODUCING A LUBRICANT IN A PRESSURIZED MEDIUM, (4) DISCHARGING SAID LUBRICANT AND MEDIUM INTO THE MOLD CAVITY IN THE FORM OF AN ATOMIZED MIST OF THE LUBRICANT FROM A PLURALITY OF ANNULARLY SPACED NOZZLES AT THE REGISTERED BOTTOM END OF THE FUNNEL, THE NOZZLES BEING DIRECTED TO CIRCUMFERENTIALLY IMPINGE THE LUBRICANT ON A DEFINITE VERTICAL AREA OF THE MOLD WALL, AND SAID LUBRICANT DISCHARGE CREATING AN ATMOSPHERE OF SAID LUBRICANT MIST IN THE MOLD CAVITY, (5) DELIVERING A CHARGE OF MOLTEN GLASS TO AND THROUGH THE FUNNEL SUBSTANTIALLY SIMULTANEOUSLY WITH THE DISCHARGING OF SAID LUBRICANT WHILE THE FUNNEL IS IN REGISTRY WITH THE MOLD. (6) REMOVING THE FUNNEL, (7) CLOSING THE UPPER END OPENING OF THE MOLD, AND (8) FORMING THE GLASS CHARGE TO ARTICLE SHAPE IN THE LUBRICATED MOLD.
Claim 2
Independent Claim
196 words
THE METHOD OF FORMING CHARGES OF MOLTEN GLASS INTO ARTICLES IN A MOLD, COMPRISING THE STEPS OF: (1) BRINGING THE MOLD TO LOADING POSITION AND THEREBY PROVIDING A FORMING CAVITY FOR THE ARTICLE, SAID CAVITY HAVING AN UPPER OPENING FOR LOADING A CHARGE OF GLASS, (2) PLACING A LOADING FUNNEL IN REGISTRY OVER SAID OPENING OF THE MOLD FOR GLASS LOADING COMMUNICATION WITH SAID CAVITY, (3) INTRODUCING A LUBRICANT IN A PRESSURIZED MEDIUM, (4) DISCHARGING SAID LUBRICANT AND MEDIUM INTO THE MOLD CAVITY IN THE FORM OF AN ATOMIZED MIST OF THE LUBRICANT FROM A PLURALITY OF ANNULARLY SPACED NOZZLES AT THE REGISTERED BOTTOM END OF THE FUNNEL, THE NOZZLES BEING DIRECTED TO CIRCUMFERENTIALLY IMPINGE THE LUBRICANT ON A DEFINITE VERTICAL AREA OF THE MOLD WALL, AND SAID LUBRICANT DISCHARGE CREATING AN ATMOSPHERE OF SAID LUBRICANT MIST IN THE MOLD CAVITY, (5) DELIVERING A CHARGE OF MOLTEN GLASS TO AND THROUGH THE FUNNEL SUBSTANTIALLY SIMULTANEOUSLY WITH THE DISCHARGING OF SAID LUBRICANT WHILE THE FUNNEL IS IN REGISTRY WITH THE MOLD. (6) REMOVING THE FUNNEL, (7) CLOSING THE UPPER END OPENING OF THE MOLD, AND (8) FORMING THE GLASS CHARGE TO ARTICLE SHAPE IN THE LUBRICATED MOLD.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |