US3171731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for glass forming machines
Assignee: GLASS CONTAINER INDUSTRY RES C
•
Filing: 1961-07-03
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Granted: 1965-03-02
•
Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Barger J Perry
- 👤 James H Heasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:28
CPC Classifications
C; C03; C03B; C03B9/00; C03B9/30; C03B9/38; C03B9/3825; C03B9/3808; C03B9/3816
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
IN APPARATUS FOR FORMING HOLLOW GAS PARISONS, A HOLLOW PLUNGER COMPRISING A HOLLOW SHELL HAVING AN OUTER WALL DEFINING AN INTERNAL CHAMBER CLOSED AT ONE END AND HAVING A COOLANT DISCHARGE OPENING AT ITS OTHER END, FIRST DUCT MEANS EXTENDING INTO THE PLUNGER CHAMBER AND TERMINATING ADJACENT THE CLOSED END THEREOF, SECOND DUCT MEANS EXTENDING INTO THE PLUNGER CHAMBER AND TERMINATING INTERMEDIATE ITS CLOSED AND DISCHARGE ENDS, A MASS OF DISCRETE PARTICLES OF MATERIAL, WHICH MATERIAL IS SHAPERETAINING AND INFUSIBLE AT THE OPERATING TEMPERATURES OF THE APPARATUS, PACKED INTO AND FILLING THE PLUNGER CHAMBER WITH COOLANT FLOW INTERSTICES DEFINED BETWEEN THE PARTICLES SUBSTANTIALLY THROUGHOUT THE MASS, SAID FIRST AND SECOND DUCT MEANS BEING PROVIDED WITH DISCHARGE OPENINGS LOCATED AT VARIOUS POINTS WITHIN THE MASS AND SPACED APPRECIABLY INWARDLY OF SAID SHELL WALL, MEANS FOR RETAINING THE PARTICLES IN PACKED CONDITION WITHIN THE PLUNGER CHAMBER, AND MEANS FOR SUPPLYING COOLANT MEDIUM THROUGH THE DUCT MEANS AND THE DISCHARGE OPENINGS
Claim 2
Dependent Claim
158 words
IN APPARATUS FOR FORMING HOLLOW GAS PARISONS, A HOLLOW PLUNGER COMPRISING A HOLLOW SHELL HAVING AN OUTER WALL DEFINING AN INTERNAL CHAMBER CLOSED AT ONE END AND HAVING A COOLANT DISCHARGE OPENING AT ITS OTHER END, FIRST DUCT MEANS EXTENDING INTO THE PLUNGER CHAMBER AND TERMINATING ADJACENT THE CLOSED END THEREOF, SECOND DUCT MEANS EXTENDING INTO THE PLUNGER CHAMBER AND TERMINATING INTERMEDIATE ITS CLOSED AND DISCHARGE ENDS, A MASS OF DISCRETE PARTICLES OF MATERIAL, WHICH MATERIAL IS SHAPERETAINING AND INFUSIBLE AT THE OPERATING TEMPERATURES OF THE APPARATUS, PACKED INTO AND FILLING THE PLUNGER CHAMBER WITH COOLANT FLOW INTERSTICES DEFINED BETWEEN THE PARTICLES SUBSTANTIALLY THROUGHOUT THE MASS, SAID FIRST AND SECOND DUCT MEANS BEING PROVIDED WITH DISCHARGE OPENINGS LOCATED AT VARIOUS POINTS WITHIN THE MASS AND SPACED APPRECIABLY INWARDLY OF SAID SHELL WALL, MEANS FOR RETAINING THE PARTICLES IN PACKED CONDITION WITHIN THE PLUNGER CHAMBER, AND MEANS FOR SUPPLYING COOLANT MEDIUM THROUGH THE DUCT MEANS AND THE DISCHARGE OPENINGS
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |