← Back to Patent Explorer
US4292501A Expired / Lapsed US ⏱️ 0.0 years remaining

Pyrolytic oven with a variable heating speed

Assignee: Compagnie Europeenne pour lEquipement Menager SA
•
Filing: 1978-05-11
•
Granted: 1981-09-29
•
Expires: 1998-05-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A pyrolytically cleaned domestic cooking oven including a catalyst for combustion of the smoke evolved during cleaning, and a temperature sensor placed inside the catalyst and arranged to regulate the heating control of the oven during pyrolytic cleaning.

Inventors

  • 👤 Paul Maitenaz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 01:29
CPC Classifications
F; F24; F24C; F24C14/00; F24C14/02; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1906; G05D23/1909; G05D23/20; G05D23/24

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 167 words
A pyrolytically cleaned domestic cooking oven including: an oven compartment, heating elements for heating the oven during cooking and pyrolytic cleaning, a catalyst for combustion of smoke given off during pyrolytic cleaning, said catalyst formed by a block pierced with a plurality of ducts which pass through said block to allow the smoke to pass over a large contact surface of said block, a temperature sensor positioned inside the body of the catalyst in one of said ducts to generate a temperature signal to regulate the heating control of the oven during pyrolytic cleaning, an electronic control connected in series with the oven heating elements, an electronic regulator connected to said temperature sensor to control said electronic control, a thermostat placed in series with the electronic control in order to regulate the maximum temperature of pyrolytic cleaning, and wherein said catalyst includes a heating resistor and said temperature sensor is placed in a position where it is protected from the direct influence of said catalyst heating resistor.
Claim 2
Dependent Claim 167 words
A pyrolytically cleaned domestic cooking oven including: an oven compartment, heating elements for heating the oven during cooking and pyrolytic cleaning, a catalyst for combustion of smoke given off during pyrolytic cleaning, said catalyst formed by a block pierced with a plurality of ducts which pass through said block to allow the smoke to pass over a large contact surface of said block, a temperature sensor positioned inside the body of the catalyst in one of said ducts to generate a temperature signal to regulate the heating control of the oven during pyrolytic cleaning, an electronic control connected in series with the oven heating elements, an electronic regulator connected to said temperature sensor to control said electronic control, a thermostat placed in series with the electronic control in order to regulate the maximum temperature of pyrolytic cleaning, and wherein said catalyst includes a heating resistor and said temperature sensor is placed in a position where it is protected from the direct influence of said catalyst heating resistor.
Claim 3
Dependent Claim 158 words
A pyrolytically cleaned domestic cooking oven including; an oven compartment, heating elements for heating the oven during pyrolytic cleaning, a catalyst for combustion of smoke given off during pyrolytic cleaning, said catalyst formed by a block pierced with a multitude of ducts which pass through said block to allow the smoke to pass over a large contact surface of said block, a temperature sensor placed inside one of the ducts of the catalyst in order to generate a temperature signal to regulate control of the oven heating during pyrolytic cleaning, a two-way thyristor connected in series with the heating elements of the oven, an electronic regulator connecting the temperature sensor to said two-way thyristor, and a thermostat to control the maximum temperature of pyrolytic cleaning placed in series with the two-way thyristor, said catalyst including a heating resistor, said temperature sensor being positioned in said catalyst where it is protected from the direct influence of said heating resistor.
Claim 4
Dependent Claim 158 words
A pyrolytically cleaned domestic cooking oven including; an oven compartment, heating elements for heating the oven during pyrolytic cleaning, a catalyst for combustion of smoke given off during pyrolytic cleaning, said catalyst formed by a block pierced with a multitude of ducts which pass through said block to allow the smoke to pass over a large contact surface of said block, a temperature sensor placed inside one of the ducts of the catalyst in order to generate a temperature signal to regulate control of the oven heating during pyrolytic cleaning, a two-way thyristor connected in series with the heating elements of the oven, an electronic regulator connecting the temperature sensor to said two-way thyristor, and a thermostat to control the maximum temperature of pyrolytic cleaning placed in series with the two-way thyristor, said catalyst including a heating resistor, said temperature sensor being positioned in said catalyst where it is protected from the direct influence of said heating resistor.
Claim 5
Dependent Claim 22 words
An oven according to claim 1 wherein the electronic control comprises a symmetric semiconductor having a trigger connected to the electronic regulator.
Claim 6
Dependent Claim 19 words
An oven according to claim 1, wherein the electronic regulator comprises a temperature regulator with an integrated triggering circuit.

References Cited (Backward Citations)

US1839738A Cited
US2900483A Cited
US3507627A Cited
US3451782A Cited
US3413444A Cited
US3364912A Cited
US3604896A Cited
US3549862A Cited
US3546435A Cited
GB1520908A Cited
FR2290120B1 Cited
DE2623201A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-09-28 1985-03-30 1985-09-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-09-28 1989-03-30 1989-09-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-09-28 1993-03-30 1993-09-29 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag