US3894483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food production heat exchange control
Assignee: Anetsberger Brothers Inc
•
Filing: 1974-02-07
•
Granted: 1975-07-15
•
Expires: 1994-02-07
Abstract
Abstract Novel method and apparatus for controlling food production equipment (having conventional thermostat means) which is operable upon placement of a load of food product into the equipment''s thermal energy transfer medium to immediately initiate operation of a thermal energy source and continue same allowing the thermostat means to ultimately react to temperature variations from a desired operating temperature within the thermal energy transfer medium and assume continued energy source operation until re-establishment of the desired operating temperature, thereby effectively minimizing the overall heat recovery time in a given food production cycle by eliminating the effects of the normal time reaction lag attendant conventional thermostat means, while further effectively reducing the overall temperature differential within a given food preparation cycle resulting in more uniform, high quality food products.
Inventors
- 👤 John A Anetsberger
- 👤 Richard J Anetsberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:30
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/12; A47J37/1266
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
113 words
In cooking apparatus having a cooking chamber, burner means for heating a cooking medium in said chamber, and control means for said burner means including a main thermostat operable, in response to lowering of the temperature of said cooking medium below a predetermined temperature resulting from the introduction of food to be cooked into said medium, to actuate said control means to initiate operation of said burner means; means for eliminating the normal time lag in actuating said control means in response to said main thermostat, comprising a short period timer operable as the food is introduced into said medium to immediately actuate said control means to initiate operation of said burner means.
Claim 2
Dependent Claim
113 words
In cooking apparatus having a cooking chamber, burner means for heating a cooking medium in said chamber, and control means for said burner means including a main thermostat operable, in response to lowering of the temperature of said cooking medium below a predetermined temperature resulting from the introduction of food to be cooked into said medium, to actuate said control means to initiate operation of said burner means; means for eliminating the normal time lag in actuating said control means in response to said main thermostat, comprising a short period timer operable as the food is introduced into said medium to immediately actuate said control means to initiate operation of said burner means.
Claim 3
Dependent Claim
32 words
Cooking apparatus according to claim 1, wherein said control means comprises an electrically operable valve, and said short period timer is electrically connected to said valve in parallel with said main thermostat.
Claim 4
Dependent Claim
48 words
In cooking apparatus according to claim 1, wherein delivery means is provided for introducing the food to be cooked into said cooking medium, means automatically operable by said delivery means as the same introduces said food into said cooking medium to initiate operation of said short period timer.
Claim 5
Dependent Claim
123 words
In a control system for the maintenance of a desired, preselected temperature in food preparation production apparatus having a transfer medium for the conveyance of thermal energy from an energy source to the food, the combination comprising: thermostat means ultimately reactive to a temperature variation from said desired temperature for initiating operation of said energy source and maintaining such operation until said desired temperature is re-established; bypass reset timer means for causing immediate initiation and operation of said energy source for a sufficient time period until said thermostat means has reacted to said temperature variation to signal said continued energy source operation; and control means operable upon introduction of food into said transfer medium to initiate operation of said bypass reset timer means.
Claim 6
Dependent Claim
123 words
In a control system for the maintenance of a desired, preselected temperature in food preparation production apparatus having a transfer medium for the conveyance of thermal energy from an energy source to the food, the combination comprising: thermostat means ultimately reactive to a temperature variation from said desired temperature for initiating operation of said energy source and maintaining such operation until said desired temperature is re-established; bypass reset timer means for causing immediate initiation and operation of said energy source for a sufficient time period until said thermostat means has reacted to said temperature variation to signal said continued energy source operation; and control means operable upon introduction of food into said transfer medium to initiate operation of said bypass reset timer means.
Claim 7
Dependent Claim
22 words
A control system according to claim 4, wherein said bypass reset timer means is electrically connected in parallel across said thermostat means.
Claim 8
Dependent Claim
38 words
In a control system according to claim 4, automatic handling means for introduction of said food into said transfer medium, wherein said control means simultaneously initiates operation of said automatic handling means and said bypass reset timer means.
Claim 9
Dependent Claim
119 words
In a control system for maintaining an operating temperature throughout the entire food preparation cycle of a food production device having a source of thermal energy, control means for said source, and a thermal medium through which said thermal energy is transferred to food, the combination comprising: thermostat means responsive to temperature departures from said operating temperature within said thermal medium for signalling operation of said control means; bypass reset timer means operable when engaged to immediately initiate operation of said control means and continue same, said bypass reset timer means initiation overriding said thermostat means until the latter''s time reaction lag to said temperature departures has ended allowing said thermostat means signalling to continue said control means operation.
Claim 10
Dependent Claim
119 words
In a control system for maintaining an operating temperature throughout the entire food preparation cycle of a food production device having a source of thermal energy, control means for said source, and a thermal medium through which said thermal energy is transferred to food, the combination comprising: thermostat means responsive to temperature departures from said operating temperature within said thermal medium for signalling operation of said control means; bypass reset timer means operable when engaged to immediately initiate operation of said control means and continue same, said bypass reset timer means initiation overriding said thermostat means until the latter''s time reaction lag to said temperature departures has ended allowing said thermostat means signalling to continue said control means operation.
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) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |