US3221396A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a solid plate cooking unit
Assignee: Motors Liquidation Co
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Filing: 1963-05-02
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Granted: 1965-12-07
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Expires: 1983-05-02
Abstract
No abstract record available.
Inventors
- 👤 Robert D Bremer
- 👤 Howard E Van Scoyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:46
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/68; H05B3/688; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083; Y10T29/49087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A METHOD OF FORMING A SOLID PLATE COOKING UNIT COMPRISING THE SEQUENTIAL STEPS OF, CASTING A MALLEABLE IRON PLATE WITH UPSTANDING RIBS ON ONE SIDE THEREOF TO FORM A TROUGH HAVING A CONFIGURED BOTTOM, PLACING A TUBULAR METAL SHEATHED HEATING ELEMENT OF SUBSTANTIALLY THE SAME CONFIGURATION AS THE BOTTOM OF SAID TROUGH WITHIN SAID TROUGH, PRESSING THE TERMINAL ENDS OF SAID RIBS INTO DEFORMED PARTIALLY OVERLAPPING RELATIONSHIP TO SAID HEATING ELEMENT WHILE SIMULTANEOUSLY FLATTENING THE EXPOSED SIDE OF SAID HEATING ELEMENT, SHOT-BLASTING THE ASSEMBLED PLATE AND HEATING ELEMENT, PREHEATING THE ASSEMBLED PLATE AND HEATING ELEMENT TO BETWEEN 250*F. AND 300*F., FLAMESPRAYING A CORROSION RESISTANT METALLIC COATING WHICH IS CAPABLE OF DIFFUSING AT APPROXIMATELY 1700*F. OVER THE ASSEMBLED PLATE AND HEATING ELEMENT, AND DIFFUSING THE METALLIC COATING ON THE ASSEMBLED PLATE AND HEATING ELEMENT IN AN ORDINARY AIR ATMOSPHERE FURNACE AT APPROXIMATELY 1700*F.
Claim 2
Independent Claim
142 words
A METHOD OF FORMING A SOLID PLATE COOKING UNIT COMPRISING THE SEQUENTIAL STEPS OF, CASTING A MALLEABLE IRON PLATE WITH UPSTANDING RIBS ON ONE SIDE THEREOF TO FORM A TROUGH HAVING A CONFIGURED BOTTOM, PLACING A TUBULAR METAL SHEATHED HEATING ELEMENT OF SUBSTANTIALLY THE SAME CONFIGURATION AS THE BOTTOM OF SAID TROUGH WITHIN SAID TROUGH, PRESSING THE TERMINAL ENDS OF SAID RIBS INTO DEFORMED PARTIALLY OVERLAPPING RELATIONSHIP TO SAID HEATING ELEMENT WHILE SIMULTANEOUSLY FLATTENING THE EXPOSED SIDE OF SAID HEATING ELEMENT, SHOT-BLASTING THE ASSEMBLED PLATE AND HEATING ELEMENT, PREHEATING THE ASSEMBLED PLATE AND HEATING ELEMENT TO BETWEEN 250*F. AND 300*F., FLAMESPRAYING A CORROSION RESISTANT METALLIC COATING WHICH IS CAPABLE OF DIFFUSING AT APPROXIMATELY 1700*F. OVER THE ASSEMBLED PLATE AND HEATING ELEMENT, AND DIFFUSING THE METALLIC COATING ON THE ASSEMBLED PLATE AND HEATING ELEMENT IN AN ORDINARY AIR ATMOSPHERE FURNACE AT APPROXIMATELY 1700*F.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |