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Patent US3699307A successfully refreshed from Google Patents.
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US3699307A Expired / Lapsed US ⏱️ 0.0 years remaining

Oven control

Assignee: Mass Feeding Corp
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Filing: 1970-08-26
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Granted: 1972-10-17
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Expires: 1990-08-26
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Abstract

Abstract In an oven control, a plurality of individual timers are provided for controlling the heating interval of the oven. Each timer is independently selectable, and a control switch is associated with each timer for regulating the heat production rate of the oven when that timer is selected. A second control switch is associated with each timer to control the heat production rate when the oven is only half full. At the end of the timed interval, the temperature of the oven is quickly lowered to a warming temperature.

Inventors

  • 👤 Emanuel Malkin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 17:59
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0225; F; F24; F24C; F24C7/00; F24C7/08; F24C7/082; F24C7/085

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 133 words
In a control for an oven having a single chamber, said control having a plurality of operating modes for heating said chamber, the combination comprising: manually operable means for selecting one of said operating modes for controlling said oven for the heating, within said chamber, of articles having heating requirements corresponding to said selected mode, timer means connected to said selecting means and to said oven for causing said oven to be heated to a predetermined interval corresponding to said selected mode, wherein said timer means includes a plurality of timers, means for individually selecting one of said timers, thermostatic means for sensing the temperature within said oven, and control means connected with said thermostatic means for maintaining a first predetermined temperature within said oven for the interval set by said selected timer.
Claim 2
Dependent Claim 133 words
In a control for an oven having a single chamber, said control having a plurality of operating modes for heating said chamber, the combination comprising: manually operable means for selecting one of said operating modes for controlling said oven for the heating, within said chamber, of articles having heating requirements corresponding to said selected mode, timer means connected to said selecting means and to said oven for causing said oven to be heated to a predetermined interval corresponding to said selected mode, wherein said timer means includes a plurality of timers, means for individually selecting one of said timers, thermostatic means for sensing the temperature within said oven, and control means connected with said thermostatic means for maintaining a first predetermined temperature within said oven for the interval set by said selected timer.
Claim 3
Dependent Claim 40 words
Apparatus according to claim 1 including manually operable means for selecting a warming operation, and means responsive to said manually operable means for maintaining the temperature within said oven at a second predetermined temperature less than said first predetermined temperature.
Claim 4
Dependent Claim 38 words
Apparatus according to claim 2 including means connected to said selected timer and responsive to the end of said interval for maintaining the temperature within said oven at a second predetermined temperature less than said first predetermined temperature.
Claim 5
Dependent Claim 39 words
Apparatus according to claim 1, wherein said control means comprises a plurality of adjustable control switch means for regulating the heat production rate of said oven, one of said control switch means being provided for each of said timers.
Claim 6
Dependent Claim 43 words
Apparatus according to claim 4 including contactor means adapted, when closed, to connect a source of electrical power with said oven, said adjustable control switch means being connected with said contactor to cyclically open and close said contactor with a predetermined duty cycle.
Claim 7
Dependent Claim 37 words
Apparatus according to claim 1, including means connected to said selected timer and responsive to the end of said interval for opening a port in said oven to reduce the temperature thereof to a second predetermined temperature.
Claim 8
Dependent Claim 31 words
Apparatus according to claim 6, including second thermostatic means, and means connected to said second thermostatic means and responsive thereto to reclose said port when said second predetermined temperature is reached.
Claim 9
Dependent Claim 156 words
In an oven control having a plurality of operating modes, the combination comprising; manually operable means for selecting one of said operating modes for controlling said oven for the heating of a class of articles having heating requirements corresponding to said selected mode, and timer means connected to said selector means and to said oven for causing said oven to be heated to a predetermined temperature for a predetermined interval corresponding to said selected mode, said timer means including a plurality of timers, means for individually selecting one of said timers, thermostatic means for sensing the temperature within said oven, and control means connected with said thermostatic means for maintaining a first predetermined temperature within said oven for the interval set by said selected timer, and switch means responsive to the opening of a door of said oven, and means connecting said switch means with said timers for resetting said timers when said door is opened.
Claim 10
Dependent Claim 156 words
In an oven control having a plurality of operating modes, the combination comprising; manually operable means for selecting one of said operating modes for controlling said oven for the heating of a class of articles having heating requirements corresponding to said selected mode, and timer means connected to said selector means and to said oven for causing said oven to be heated to a predetermined temperature for a predetermined interval corresponding to said selected mode, said timer means including a plurality of timers, means for individually selecting one of said timers, thermostatic means for sensing the temperature within said oven, and control means connected with said thermostatic means for maintaining a first predetermined temperature within said oven for the interval set by said selected timer, and switch means responsive to the opening of a door of said oven, and means connecting said switch means with said timers for resetting said timers when said door is opened.
Claim 11
Dependent Claim 198 words
In an oven control having a plurality of operating modes, the combination comprising; manually operable means for selecting one of said operating modes for controlling said oven for the heAting of a class of articles having heating requirements corresponding to said selected mode, and timer means connected to said selector means and to said oven for causing said oven to be heated to a predetermined temperature for a predetermined interval corresponding to said selected mode, said timer means including a plurality of timers, means for individually selecting one of said timers, thermostatic means for sensing the temperature within said oven, and control means connected with said thermostatic means for maintaining a first predetermined temperature within said oven for the interval set by said selected timer, said control means comprising a pair of adjustable control switch means for regulating the heat production rate of said oven, one of said control switch means being provided for each of said timers, and a pair of adjustable control switch means for each of said timers, one of said pair being adapted to maintain the heat production rate of said oven at approximately half the rate maintained by the other of said pair.
Claim 12
Dependent Claim 198 words
In an oven control having a plurality of operating modes, the combination comprising; manually operable means for selecting one of said operating modes for controlling said oven for the heAting of a class of articles having heating requirements corresponding to said selected mode, and timer means connected to said selector means and to said oven for causing said oven to be heated to a predetermined temperature for a predetermined interval corresponding to said selected mode, said timer means including a plurality of timers, means for individually selecting one of said timers, thermostatic means for sensing the temperature within said oven, and control means connected with said thermostatic means for maintaining a first predetermined temperature within said oven for the interval set by said selected timer, said control means comprising a pair of adjustable control switch means for regulating the heat production rate of said oven, one of said control switch means being provided for each of said timers, and a pair of adjustable control switch means for each of said timers, one of said pair being adapted to maintain the heat production rate of said oven at approximately half the rate maintained by the other of said pair.
Claim 13
Dependent Claim 123 words
In an oven having a single chamber a control having a plurality of pre-determined operating modes, each for heating said chamber at a pre-selected heat production rate for a preselected time interval, said control comprising manually operable means for selecting one of said operating modes for controlling said oven for the heating within said chamber of articles having heating requirements corresponding to said selected mode, timer means operatively connected to said selecting means and to said oven for causing said oven to be heated for a time interval corresponding to said selected mode, and heat regulating means operatively connected to said selecting means and to said oven for regulating the heat production rate of said oven in accordance with the operating modes selected.
Claim 14
Dependent Claim 123 words
In an oven having a single chamber a control having a plurality of pre-determined operating modes, each for heating said chamber at a pre-selected heat production rate for a preselected time interval, said control comprising manually operable means for selecting one of said operating modes for controlling said oven for the heating within said chamber of articles having heating requirements corresponding to said selected mode, timer means operatively connected to said selecting means and to said oven for causing said oven to be heated for a time interval corresponding to said selected mode, and heat regulating means operatively connected to said selecting means and to said oven for regulating the heat production rate of said oven in accordance with the operating modes selected.

References Cited (Backward Citations)

US3364338A Cited
US3496337A Cited
US3465126A Cited
US3560712A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-17 1976-04-17 1976-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-17 1980-04-17 1980-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-17 1984-04-17 1984-10-17 $7700.00 Window Closed / Lapsed

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