US4370566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Appliance control system
Assignee: Emhart Industries Inc
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Filing: 1981-04-15
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Granted: 1983-01-25
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Expires: 2001-04-15
Abstract
Abstract A control system for an appliance having a plurality of different operational cycles, provides cam operated switches for controlling the coupling of electrical power to the appliance, the switches including a plurality of rotatable cams for operating the switches in response to the rotational position of the cams, the switches being adapted for electrical rotation of said cams, a digital electronic control circuit for controlling the electrical cam rotation, the control circuit including circuitry for receiving a selection of any one of the cycles for the operation of the appliance, and a second circuit coupled between the switches and the control circuit and responsive to the circuitry for receiving for supplying information on the rotational position of the cams to the control circuit to enable control of the electrical rotation in accordance with a cycle selection.
Inventors
- 👤 Leroy A. Perry
- 👤 Charles E. Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:53
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/06; G05B19/063
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
143 words
A control system for an appliance having a plurality of different operational cycles, comprising: cam operated switch means for controlling the coupling of electrical power to the appliance, said switch means including a plurality of rotatable cams for operating said switch means in response to the rotational position of said cams, said switch means being adapted for electrical rotation of said cams; digital electronic control circuit means for controlling said electrical rotation, said control circuit means including means for receiving a selection of any one of said cycles for the operation of said appliance; and second circuit means coupled between said switch means and said control circuit means and responsive to said means for receiving for supplying information on the rotational position of said cams to said control circuit means to enable control of said electrical rotation in accordance with a cycle selection.
Claim 2
Dependent Claim
143 words
A control system for an appliance having a plurality of different operational cycles, comprising: cam operated switch means for controlling the coupling of electrical power to the appliance, said switch means including a plurality of rotatable cams for operating said switch means in response to the rotational position of said cams, said switch means being adapted for electrical rotation of said cams; digital electronic control circuit means for controlling said electrical rotation, said control circuit means including means for receiving a selection of any one of said cycles for the operation of said appliance; and second circuit means coupled between said switch means and said control circuit means and responsive to said means for receiving for supplying information on the rotational position of said cams to said control circuit means to enable control of said electrical rotation in accordance with a cycle selection.
Claim 3
Dependent Claim
39 words
The system of claim 1 wherein said cycles each includes a predetermined sequence of events and said information on said rotational position includes event identification means for enabling the performance of the predetermined event sequence for each selectable cycle.
Claim 4
Dependent Claim
41 words
The system of claim 1, further comprising means for transferring timing information from said switch means to said control circuit means, said timing information being dependent upon the rotational position of said cams and thereby upon said selection of operational cycle.
Claim 5
Dependent Claim
43 words
The system of claim 3, wherein said timing information is digitally coded in said switch means and further wherein said control circuit means includes a counter for counting timed pulses in response to said timing information to control the duration of cycle operation.
Claim 6
Dependent Claim
36 words
The system of claim 1, wherein said control circuit means includes a fixed period pulse generator and at least one pulse counter for timing each of said cycles in response to second digitally coded timing information.
Claim 7
Dependent Claim
19 words
The system of claim 5, wherein said second digitally coded timing information is stored in said control circuit means.
Claim 8
Dependent Claim
40 words
The system of claim 5, wherein each said cycle includes a plurality of events and further wherein said control circuit means includes a second pulse counter for timing each of said events in response to first digitally coded timing information.
Claim 9
Dependent Claim
34 words
The system of claim 7, wherein said first timing information is stored on said cams and further comprising means for transferring said first timing information from said switch means to said control circuit means.
Claim 10
Dependent Claim
24 words
The system of claim 1, wherein each of said cycles includes a predetermined sequence of events, said sequence being stored in said switch means.
Claim 11
Dependent Claim
41 words
The system of claim 1, wherein at least one of said cycles includes a predetermined content of different events, and further comprising means for modifying said event content of said one cycle in response to a selection of a control option.
Claim 12
Dependent Claim
42 words
The system of claim 10, wherein said means for modifying includes second means for receiving said selection of said control option, and storage means containing information for controlling the operation of said one cycle in response to said second means for receiving.
Claim 13
Dependent Claim
24 words
The system of claim 10, wherein said storage means includes additional cam operated switch means selectable in response to said second means for receiving.
Claim 14
Independent Claim
132 words
A method for controlling an appliance having a plurality of different operational cycles, comprising: controlling the coupling of electrical power to the appliance by cam operated switch means including a plurality of rotatable cams for operating said switch means in response to the rotational position of said cams; rotating said cams by electromotive means; controlling said rotating of said cams with digital electronic control circuit means, said controlling including receiving a selection of any one of said cycles for the operation of said appliance; and coupling information on the rotational position of said cams from said switch means to said control circuit means, said coupling being responsive to a received said selection of an operational cycle to enable control of said rotating of said cams in accordance with a received cycle selection.
Claim 15
Independent Claim
132 words
A method for controlling an appliance having a plurality of different operational cycles, comprising: controlling the coupling of electrical power to the appliance by cam operated switch means including a plurality of rotatable cams for operating said switch means in response to the rotational position of said cams; rotating said cams by electromotive means; controlling said rotating of said cams with digital electronic control circuit means, said controlling including receiving a selection of any one of said cycles for the operation of said appliance; and coupling information on the rotational position of said cams from said switch means to said control circuit means, said coupling being responsive to a received said selection of an operational cycle to enable control of said rotating of said cams in accordance with a received cycle selection.
Claim 16
Dependent Claim
46 words
The method of claim 13, wherein each of said cycles includes a predetermined sequence of events and said coupling information includes identifying said events in accordance with a received said cycle selection for enabling the performance of said predetermined sequence of events for said cycle selection.
Claim 17
Dependent Claim
32 words
The method of claim 14, further comprising coupling timing information from said switch means to said control circuit means in accordance with the cycle corresponding to the rotational position of said cams.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |