Patent US4688475A successfully refreshed from Google Patents.
US4688475A
Expired / Lapsed
US
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Cooking apparatus
Assignee: Technology Licensing Corp
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Filing: 1986-12-04
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Granted: 1987-08-25
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Expires: 2006-12-04
Abstract
Abstract Cooking apparatus controlled by a programmed digital microcomputer for determining whether the cooking process is complete and for filtering the cooking medium when, for example, only one cooking process is complete. The apparatus also determines whether the cooking medium has been filtered and locks out the initiation of a cooking process after, for example, the completion of only one cooking process at least until the apparatus determines that the cooking medium has been filtered.
Inventors
- 👤 Allan E. Witt
- 👤 Andrew B. Macri
- 👤 Mario Pasquini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:30
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/12; A47J37/1266; A47J37/1223; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1951
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
172 words
Cooking apparatus comprising: means for selecting a program subroutine for programming a microcomputer to control a cooking process utilizing a cooking medium; parameter-sensor means for sensing a parameter of the cooking medium; means responsive to said parameter-sensor means for determining whether the microcomputer should begin the subroutine; register means responsive to said program subroutine for storing timing information relating to the cooking process; means responsive to said determining means for decrementing said register means as the cooking process continues; means responsive to said register means for determining whether the cooking process is complete; means for filtering the cooking medium when one or more cooking processes is complete; means responsive to said parameter-sensor means for determining whether the cooking medium has been filtered after completion of the one or more cooking processes; and means responsive to said filter-determining means upon completion of the one or more cooking processes for locking-out the initiation of a cooking process for a period at least until said filter-determining means determines that the cooking medium has been filtered.
Claim 2
Dependent Claim
172 words
Cooking apparatus comprising: means for selecting a program subroutine for programming a microcomputer to control a cooking process utilizing a cooking medium; parameter-sensor means for sensing a parameter of the cooking medium; means responsive to said parameter-sensor means for determining whether the microcomputer should begin the subroutine; register means responsive to said program subroutine for storing timing information relating to the cooking process; means responsive to said determining means for decrementing said register means as the cooking process continues; means responsive to said register means for determining whether the cooking process is complete; means for filtering the cooking medium when one or more cooking processes is complete; means responsive to said parameter-sensor means for determining whether the cooking medium has been filtered after completion of the one or more cooking processes; and means responsive to said filter-determining means upon completion of the one or more cooking processes for locking-out the initiation of a cooking process for a period at least until said filter-determining means determines that the cooking medium has been filtered.
Claim 3
Dependent Claim
23 words
Apparatus in accordance with claim 1, which includes means for removing the product from the cooking medium when the cooking process is complete.
Claim 4
Dependent Claim
35 words
Apparatus in accordance with claim 1, in which said cooking-process program-subroutine-selecting means is effective to program said microcomputer to control the cooking process after said filter-determining means determines that the cooking medium has been filtered.
Claim 5
Dependent Claim
17 words
Apparatus in accordance with claim 1, which comprises means for displaying the temperature of the cooking medium.
Claim 6
Dependent Claim
25 words
Apparatus in accordance with claim 1, which comprises means for displaying the status of the cooking medium requiring filtering when the cooking process is complete.
Claim 7
Dependent Claim
46 words
Apparatus in accordance with claim 1, which includes means responsive to the selected cooking process and the filtering of the cooking medium for determining when the cooking medium requires changing and for locking-out the initiation of a cooking process until the cooking medium has been changed.
Claim 8
Dependent Claim
25 words
Apparatus in accordance with claim 1, which includes a temperature-controlled heat source and which includes means for disabling the heat source during the lock-out period.
Claim 9
Dependent Claim
30 words
Apparatus in accordance with claim 1, which includes means for aborting the cooking process only after the expiration of a predetermined period during which the process can not be aborted.
References Cited (Backward Citations)
US3853044A
Cited
US3701313A
Cited
US3973481A
Cited
US4210123A
Cited
US4324173A
Cited
US4197581A
Cited
US4437159A
Cited
US4623544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-24 | 1991-02-23 | 1991-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-24 | 1995-02-23 | 1995-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-24 | 1999-02-23 | 1999-08-25 | $7700.00 | Window Closed / Lapsed |