US3270102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the production of hardened clay products
Assignee: Ken-Mar Clay Products Ltd
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Filing: 1964-12-23
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Granted: 1966-08-30
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Expires: 1984-12-23
Abstract
No abstract record available.
Inventors
- 👤 Aiken Joseph Phillip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:37
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/32; B; B22; B22F; B22F3/00; B22F3/10; B22F3/105; Y; Y10; Y10S; Y10S425/00; Y10S425/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
271 words
AN APPARATUS FOR PRODUCING HARDENED CLAY PRODUCTS WHICH COMPRISES A CLOSED EXTRUDER MEANS, MEANS FOR DELIVERING A CLAY MIX TO THE EXTRUDER, SAID EXTRUDER MEANS BEING PROVIDED WITH MEANS FOR HEATING THE MIX, AN EXTRUDER ORIFICE AND MEANS FOR EXTRUDING THE HEATED MIX UNDER PRESSURE THROUGH SAID ORIFICE, CUTTER MEANS ADJACENT SAID EXTRUDER FOR RECEIVING THE MIX FROM SAID EXTRUDER AND FOR CUTTING SAID EXTRUDED CLAY MIX INTO SHAPED MODULES, AN INFRA-RED HEATHER FOR DRYING AND PREHEATING SAID SHAPED MODULES, MEANS FOR DELIVERING SHAPED MODULES FROM SAID CUTTER TO SAID INFRA-RED HEATER, MEANS FOR PASSING MODULES THROUGH THE INFRA-RED HEATER, A DIELECTRIC HEATER, MEANS FOR DELIVERING SHAPED MODULES FROM THE INFRA-RED HEATER TO SAID DIELECTRIC HEATER, AN ENDLESS ELECTRO-CONDUCTIVE CONVEYOR BELT FORMING A LOWER ELECTRODE WITHIN THE DIELECTRIC HEATER, SAID BELT FORMING A LOWER ELECTRODE WITHIN THE DIELECTRIC HEATER AND A CONVEYING MEANS FOR MODULES, AN UPPER ELECTRODE COMPRISING A FLAT METALLIC PLATE MOUNTED IN SAID DIELECTRIC HEATER IN SPACED RELATION WITH SAID BELT TO ALLOW PASSAGE THERETHROUGH OF MODULES AS A DIELECTRIC ON SAID BELT AND BETWEEN THE BELT AND THE UPPER ELECTRODE, MEANS FOR VARIABLY SPACING SAID UPPER ELECTRODE FROM SAID LOWER ELECTRODE, A VARIABLE FREQUENCY OSCILLATOR CIRCUIT CONNECTED TO AND FORMING A HIGH FREQUENCY DIELECTERIC HEATING CIRCUIT WITH SAID UPPER AND LOWER ELECTRODES, MEANS FOR CONTINUOUSLY SENSING CHANGING CONDITIONS IN THE DIELECTRIC PASSING THROUGH SAID DIELECTRIC HEATER, MEANS FOR CONTINUOUSLY CHANGING THE INDUCTANCE OF THE DIELECTRIC CIRCUIT IN RESPONSE TO CHANGES IN THE DIELECTRIC PASSING THROUGH THE DIELECTRIC HEATER, RADIO FREQUENCY SHIELDING MEANS ENCLOSING SAID DIELECTRIC HEATER AND MEANS FOR WITHDRAWING BAKED CLAY PRODUCTS FROM THE DIELECTRIC HEATER.
Claim 2
Independent Claim
271 words
AN APPARATUS FOR PRODUCING HARDENED CLAY PRODUCTS WHICH COMPRISES A CLOSED EXTRUDER MEANS, MEANS FOR DELIVERING A CLAY MIX TO THE EXTRUDER, SAID EXTRUDER MEANS BEING PROVIDED WITH MEANS FOR HEATING THE MIX, AN EXTRUDER ORIFICE AND MEANS FOR EXTRUDING THE HEATED MIX UNDER PRESSURE THROUGH SAID ORIFICE, CUTTER MEANS ADJACENT SAID EXTRUDER FOR RECEIVING THE MIX FROM SAID EXTRUDER AND FOR CUTTING SAID EXTRUDED CLAY MIX INTO SHAPED MODULES, AN INFRA-RED HEATHER FOR DRYING AND PREHEATING SAID SHAPED MODULES, MEANS FOR DELIVERING SHAPED MODULES FROM SAID CUTTER TO SAID INFRA-RED HEATER, MEANS FOR PASSING MODULES THROUGH THE INFRA-RED HEATER, A DIELECTRIC HEATER, MEANS FOR DELIVERING SHAPED MODULES FROM THE INFRA-RED HEATER TO SAID DIELECTRIC HEATER, AN ENDLESS ELECTRO-CONDUCTIVE CONVEYOR BELT FORMING A LOWER ELECTRODE WITHIN THE DIELECTRIC HEATER, SAID BELT FORMING A LOWER ELECTRODE WITHIN THE DIELECTRIC HEATER AND A CONVEYING MEANS FOR MODULES, AN UPPER ELECTRODE COMPRISING A FLAT METALLIC PLATE MOUNTED IN SAID DIELECTRIC HEATER IN SPACED RELATION WITH SAID BELT TO ALLOW PASSAGE THERETHROUGH OF MODULES AS A DIELECTRIC ON SAID BELT AND BETWEEN THE BELT AND THE UPPER ELECTRODE, MEANS FOR VARIABLY SPACING SAID UPPER ELECTRODE FROM SAID LOWER ELECTRODE, A VARIABLE FREQUENCY OSCILLATOR CIRCUIT CONNECTED TO AND FORMING A HIGH FREQUENCY DIELECTERIC HEATING CIRCUIT WITH SAID UPPER AND LOWER ELECTRODES, MEANS FOR CONTINUOUSLY SENSING CHANGING CONDITIONS IN THE DIELECTRIC PASSING THROUGH SAID DIELECTRIC HEATER, MEANS FOR CONTINUOUSLY CHANGING THE INDUCTANCE OF THE DIELECTRIC CIRCUIT IN RESPONSE TO CHANGES IN THE DIELECTRIC PASSING THROUGH THE DIELECTRIC HEATER, RADIO FREQUENCY SHIELDING MEANS ENCLOSING SAID DIELECTRIC HEATER AND MEANS FOR WITHDRAWING BAKED CLAY PRODUCTS FROM THE DIELECTRIC HEATER.
Claim 3
Dependent Claim
311 words
A PROCESS FOR PRODUCING HARDENED CLAY PRODUCTS WHICH COMPRISES FEEDING THE CLAY PRODUCT INGREDIENTS TO A TWO COMPARTMENT MIXING APPARATUS, MIXING THE INGREDIENTS IN THE FIRST COMPARTMENT THEREOF, FEEDING THE FIRST COMPARTMENT MIX TO THE SECOND COMPARTMENT OF THE MIXTER AND FURTHER MIXING THE INGREDIENTS TO FORM AN INTIMATED MIXTURE THEREIN, CONTINUOUSLY FEEDING SAID INTIMATE MIXTURE TO A CLOSED EXTRUDER MEANS ADAPTED TO HEAT AND COMPRESS SAID INTIMATE MIXTURE, HEATING AND COMPRESSING THE INTIMATE MIXTURE IN SAID EXTRUDER, CONTINUOUSLY EXTRUDING THE INTIMATE MIXTURE THROUGH AN ORIFICE OF DESIRED CROSS SECTION ON SAID EXTRUDER IN A CONTINUOUS RIBBON AND IN A COMPRESSED, HEATED STATE TO ALLOW SUBSTANTIAL DRYING THEREOF, CONTINUOUSLY FEEDING SAID EXTRUDED RIBBON OF DESIRED CROSS SECTION TO A CONTINUOUS CUTTING DEVICE, CUTTING SAID RIBBON INTO RAW, SHAPED, CLAY MODULES, CONTINUOUSLY FEEDING SAID RAW, SUBSTANTIALLY DRY MODULES TO AN INFRA-RED HEATER, CONTINUOUSLY PASSING SAID MODULES THROUGH THE INFRA-RED HEATER TO COMPLETELY DRY AND PREHEAT THE SAME, CONTINUOUSLY FEEDING SAID DRY AND PREHEATED MODULES FROM SAID INFRA-RED HEATER ON A CONTINUOUS ELECTRO-CONDUCTIVE CONVEYOR BELT TO A DIELECTRIC HEATER, SAID CONVEYOR BELT BEING ADAPTED TO PASS THROUGH AND FORMING A LOWER ELECTRODE WITHIN THE DIELECTRIC HEATER AND SAID DIELECTRIC HEATER HAVING AN UPPER ELECTRODE THEREIN MOUNTED IN SPACED RELATIONSHIP FROM SAID MODULES AND CONNECTED WITH SAID LOWER ELECTRODE TO A VARIABLE FREQUENCY OSCILLATOR CIRCUIT TO FORM A HIGH FREQUENCY DIELECTRIC HEATING CIRCUIT THEREWITH, CONTINUOUSLY PASSING SAID MODULES AS A DIELEC TRIC ON SAID BELT UNDER SAID UPPER ELECTRODE, DIRECTING A HIGH FREQUENCY DIELECTRIC HEATING CURRENT THROUGH THE MODULES, CONTINUOUSLY SENSING CHANGES IN THE MAKE-UP AND CONDITIONS OF THE DIELECTRIC MODULES PASSING THROUGH THE DIELECTRIC HEATER, CONTINUOUSLY CHANGING THE INDUCTANCE OF THE DIELECTRIC HEATING CIRCUIT IN RESPONSE TO SAID CHANGES IN THE DIELECTRIC MODULES PASSING THROUGH THE DIELECTRIC HEATER AND REMOVING THE MODULES FROM THE DIELECTRIC HEATER AS A SUBSTANTIALLY UNIFORM, HARDENED CLAY PRODUCT.
Claim 4
Dependent Claim
311 words
A PROCESS FOR PRODUCING HARDENED CLAY PRODUCTS WHICH COMPRISES FEEDING THE CLAY PRODUCT INGREDIENTS TO A TWO COMPARTMENT MIXING APPARATUS, MIXING THE INGREDIENTS IN THE FIRST COMPARTMENT THEREOF, FEEDING THE FIRST COMPARTMENT MIX TO THE SECOND COMPARTMENT OF THE MIXTER AND FURTHER MIXING THE INGREDIENTS TO FORM AN INTIMATED MIXTURE THEREIN, CONTINUOUSLY FEEDING SAID INTIMATE MIXTURE TO A CLOSED EXTRUDER MEANS ADAPTED TO HEAT AND COMPRESS SAID INTIMATE MIXTURE, HEATING AND COMPRESSING THE INTIMATE MIXTURE IN SAID EXTRUDER, CONTINUOUSLY EXTRUDING THE INTIMATE MIXTURE THROUGH AN ORIFICE OF DESIRED CROSS SECTION ON SAID EXTRUDER IN A CONTINUOUS RIBBON AND IN A COMPRESSED, HEATED STATE TO ALLOW SUBSTANTIAL DRYING THEREOF, CONTINUOUSLY FEEDING SAID EXTRUDED RIBBON OF DESIRED CROSS SECTION TO A CONTINUOUS CUTTING DEVICE, CUTTING SAID RIBBON INTO RAW, SHAPED, CLAY MODULES, CONTINUOUSLY FEEDING SAID RAW, SUBSTANTIALLY DRY MODULES TO AN INFRA-RED HEATER, CONTINUOUSLY PASSING SAID MODULES THROUGH THE INFRA-RED HEATER TO COMPLETELY DRY AND PREHEAT THE SAME, CONTINUOUSLY FEEDING SAID DRY AND PREHEATED MODULES FROM SAID INFRA-RED HEATER ON A CONTINUOUS ELECTRO-CONDUCTIVE CONVEYOR BELT TO A DIELECTRIC HEATER, SAID CONVEYOR BELT BEING ADAPTED TO PASS THROUGH AND FORMING A LOWER ELECTRODE WITHIN THE DIELECTRIC HEATER AND SAID DIELECTRIC HEATER HAVING AN UPPER ELECTRODE THEREIN MOUNTED IN SPACED RELATIONSHIP FROM SAID MODULES AND CONNECTED WITH SAID LOWER ELECTRODE TO A VARIABLE FREQUENCY OSCILLATOR CIRCUIT TO FORM A HIGH FREQUENCY DIELECTRIC HEATING CIRCUIT THEREWITH, CONTINUOUSLY PASSING SAID MODULES AS A DIELEC TRIC ON SAID BELT UNDER SAID UPPER ELECTRODE, DIRECTING A HIGH FREQUENCY DIELECTRIC HEATING CURRENT THROUGH THE MODULES, CONTINUOUSLY SENSING CHANGES IN THE MAKE-UP AND CONDITIONS OF THE DIELECTRIC MODULES PASSING THROUGH THE DIELECTRIC HEATER, CONTINUOUSLY CHANGING THE INDUCTANCE OF THE DIELECTRIC HEATING CIRCUIT IN RESPONSE TO SAID CHANGES IN THE DIELECTRIC MODULES PASSING THROUGH THE DIELECTRIC HEATER AND REMOVING THE MODULES FROM THE DIELECTRIC HEATER AS A SUBSTANTIALLY UNIFORM, HARDENED CLAY PRODUCT.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |