Patent EP0264935A2 successfully refreshed from Google Patents.
EP0264935A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Automatic heating appliance with ultrasonic sensor
Assignee: OFFERTA DI LICENZA AL PUBBLICO
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Filing: 1987-10-21
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Granted: —
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Expires: 2007-10-21
Abstract
Abstract A heating appliance comprising a heating chamber, a heater for heating an object which is encased in the heating chamber and a turntable provided in the heating chamger and arranged to be rotatable about its own axis and to hold thereon the object. Included therein are an ultrasonic sensor for transmitting an ultrasonic wave toward said object and receiving an echo wave returning therefrom and a control unit for controlling the ultrasonic sensor. The control unit successively calculates the distances of the object from said ultrasonic sensor on the basis of the transmission and reception of the ultrasonic wave and determines the heating condition of the object on the basis of the successively calculated distances and controlling the heater in accordance with the determined distinctive feature. This does not require an input operation in terms of the class and category of the object to be heated, resulting in improving the automation of the heating appliance.
Inventors
- 👤 Shigeki Ueda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:54
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/6408; H05B6/6411; H05B6/6447; H05B6/6458; H05B6/6464
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
141 words
A heating appliance with a heating chamber, comprising: heating means for heating an object which is encased in said heating chamber; turntable means provided in said heating chamger and arranged to be rotatable about its own axis, said object being placed on said turntable means and being rotated in accordance with rotation of said turntable means; ultrasonic sensor means for transmitting an ultrasonic wave toward said object and receiving an echo wave returning therefrom; and control means for controlling said ultrasonic sensor means so as to successively calculate the distances of said object from said ultrasonic sensor means on the basis of the transmission and reception of the ultrasonic wave, said control means determining the heating condition of said object on the basis of the successively calculated distances and controlling said heating means in accordance with the result of the determination.
Claim 2
Dependent Claim
141 words
A heating appliance with a heating chamber, comprising: heating means for heating an object which is encased in said heating chamber; turntable means provided in said heating chamger and arranged to be rotatable about its own axis, said object being placed on said turntable means and being rotated in accordance with rotation of said turntable means; ultrasonic sensor means for transmitting an ultrasonic wave toward said object and receiving an echo wave returning therefrom; and control means for controlling said ultrasonic sensor means so as to successively calculate the distances of said object from said ultrasonic sensor means on the basis of the transmission and reception of the ultrasonic wave, said control means determining the heating condition of said object on the basis of the successively calculated distances and controlling said heating means in accordance with the result of the determination.
Claim 3
Dependent Claim
180 words
A heating appliance with a heating chamber, comprising: heating means for heating an object which is encased in said heating chamber; turntable means provided in said heating chamger and arranged to be rotatable about its own axis, said object being placed on said turntable means and being rotated in accordance with rotation of said turntable means; ultrasonic sensor means for transmitting an ultrasonic wave toward said object and receiving an echo wave returning therefrom; weight sensor means for sensing the weight of said object placed on said turntable means; and control means for controlling said ultrasonic sensor means so as to successively calculate the distances of said object from said ultrasonic sensor means on the basis of the transmission and reception of the ultrasonic wave, said control means determining the volume of said object on the basis of the successively calculated distances and calculating the density of said object on the basis of the determined volume and the weight sensed by said weight sensor, said control means controlling said heating means in accordance with the calculated density of said object.
Claim 4
Dependent Claim
180 words
A heating appliance with a heating chamber, comprising: heating means for heating an object which is encased in said heating chamber; turntable means provided in said heating chamger and arranged to be rotatable about its own axis, said object being placed on said turntable means and being rotated in accordance with rotation of said turntable means; ultrasonic sensor means for transmitting an ultrasonic wave toward said object and receiving an echo wave returning therefrom; weight sensor means for sensing the weight of said object placed on said turntable means; and control means for controlling said ultrasonic sensor means so as to successively calculate the distances of said object from said ultrasonic sensor means on the basis of the transmission and reception of the ultrasonic wave, said control means determining the volume of said object on the basis of the successively calculated distances and calculating the density of said object on the basis of the determined volume and the weight sensed by said weight sensor, said control means controlling said heating means in accordance with the calculated density of said object.
Claim 5
Dependent Claim
48 words
A heating appliance as claimed in claim 1, further comprising gas sensor means for detecting the vaper or gas generated from said object due to the heating, and wherein said control means determines the heating time period on the basis of the detection of the vaper or gass.
Claim 6
Dependent Claim
55 words
A heating appliance as claimed in claim 2, further comprising gas sensor means for detecting the vaper or gas generated from said object due to the heating, and wherein said control means determines the heating time period on the basis of the calculated density of said object and the detection of the vaper or gass.
Claim 7
Dependent Claim
36 words
A heating appliance as claimed in claim 1, wherein said control means stops to energize said heating means while the distances from said ultrasonic sensor means to said object are measured by said ultrasonic sensor means.
Claim 8
Dependent Claim
36 words
A heating appliance as claimed in claim 2, wherein said control means stops to energize said heating means while the distances from said ultrasonic sensor means to said object are measured by said ultrasonic sensor means.
Claim 9
Dependent Claim
41 words
A heating appliance as claimed in claim 1, wherein said control means detects the presence of an attachment, which is used to place said object thereon in a predetermined cooking category, and controls said heating means in a predetemined control manner.
Claim 10
Dependent Claim
41 words
A heating appliance as claimed in claim 2, wherein said control means detects the presence of an attachment, which is used to place said object thereon in a predetermined cooking category, and controls said heating means in a predetemined control manner.
Claim 11
Dependent Claim
31 words
A heating appliance as claimed in claim 8, wherein said predetermined control manner is determined so that the heating time of said object is determined in accordance with the weight thereof.
References Cited (Backward Citations)
No citation records indexed.
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