Patent US3780315A successfully refreshed from Google Patents.
US3780315A
Expired / Lapsed
US
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Automatic control system for dishwashing apparatus
Assignee: Blakeslee G S and Co
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Filing: 1972-10-26
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Granted: 1973-12-18
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Expires: 1992-10-26
Abstract
Abstract A control system for a commercial dishwashing apparatus of the orbital conveyor type having washing and rinsing sections is designed to automatically operate the pump units for the washing and rinsing sections in a timed sequence and operate an electrical signal means to indicate when the soiled ware in the conveyor is cleaned and ready for removal. After all the soiled ware on the conveyor has been passed through the washing and rinsing sections, the pump units are sequentially stopped and the electrical signal means changes to inform the operator that the automatic operation is terminated.
Inventors
- 👤 D Blakeslee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:59
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/24; A47L15/241; A47L15/242; A47L15/42; A47L15/4293
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
131 words
A control system for a dish washer apparatus having an orbital conveyor assembly adapted to move soiled ware through various compartments including washing and rinsing sections and an unload area adjacent said rinsing section, comprising first pump unit for said washing section, second pump unit for said rinsing section, signal means for indicating the removal of cleaned ware at said unloading area, first control means for energizing said first pump unit, second control means for energizing said second pump unit, third control means for operating said signal means, and programming means for sequentially activating said first, second and third control means at predetermined time intervals and after the completion of at least one revolution of the conveyor to sequentially deactivate said first, second and third control means at predetermined time intervals.
Claim 2
Dependent Claim
131 words
A control system for a dish washer apparatus having an orbital conveyor assembly adapted to move soiled ware through various compartments including washing and rinsing sections and an unload area adjacent said rinsing section, comprising first pump unit for said washing section, second pump unit for said rinsing section, signal means for indicating the removal of cleaned ware at said unloading area, first control means for energizing said first pump unit, second control means for energizing said second pump unit, third control means for operating said signal means, and programming means for sequentially activating said first, second and third control means at predetermined time intervals and after the completion of at least one revolution of the conveyor to sequentially deactivate said first, second and third control means at predetermined time intervals.
Claim 3
Dependent Claim
85 words
A control system as defined in claim 1, wherein said programming means comprises timer means, output shaft driven by said timer means and carrying a plurality of adjustable cam pairs, one of said cam pairs adjusted to activate and deactivate said first control means, second of said cam pairs adjusted relative to said first cam pair to activate and deactivate said second control means, and third of said cam pairs adjusted relative to said second cam pair to activate and deactivate said third control means.
Claim 4
Dependent Claim
44 words
A control system as defined in claim 2, wherein said programming means further comprises means for resetting said timer means when deenergized, and an adjustable cycle cam carried by said output shaft for deenergizing said timer means simultaneously with deactivating said third control means.
Claim 5
Dependent Claim
65 words
A control system as defined in claim 2, wherein said signal means comprises a ready-to-load lamp and not-ready-to-load lamp, and said third control means includes normally-closed electrical contacts in series with said not-ready-to-load lamp and normally-open contacts in series with said ready-to-load lamp, whereby said third pair of cams are adapted to simultaneously actuate said normally-closed and normally-open contacts to alternately turn on said lamps.
Claim 6
Dependent Claim
132 words
A control system for a dish washer apparatus having an orbital conveyor assembly adapted to move soiled ware through various compartments including washing and rinsing sections and an unload area adjacent said rinsing section, comprising first pump unit for said washing sectiOn, second pump unit for said rinsing section, electrical signal means for indicating the removal of cleaned ware at said unloading area, first switch means for energizing said first pump unit, second switch means for energizing said second pump unit, third switch means for operating said electrical signal means, and programming means for sequentially closing said first, second and third switch means at predetermined time intervals and after the completion of at least one revolution of the conveyor to sequentially open said first, second and third switches at predetermined time intervals.
Claim 7
Dependent Claim
132 words
A control system for a dish washer apparatus having an orbital conveyor assembly adapted to move soiled ware through various compartments including washing and rinsing sections and an unload area adjacent said rinsing section, comprising first pump unit for said washing sectiOn, second pump unit for said rinsing section, electrical signal means for indicating the removal of cleaned ware at said unloading area, first switch means for energizing said first pump unit, second switch means for energizing said second pump unit, third switch means for operating said electrical signal means, and programming means for sequentially closing said first, second and third switch means at predetermined time intervals and after the completion of at least one revolution of the conveyor to sequentially open said first, second and third switches at predetermined time intervals.
Claim 8
Dependent Claim
85 words
A control system as defined in claim 5, wherein said programming means comprises timer means, output shaft driven by said timer means and carrying a plurality of adjustable cam pairs, one of said cam pairs adjusted to close and open said first switch means, second of said cam pairs adjusted relative to said first cam pair to close and open said second switch means, and third of said cam pairs adjusted relative to said second cam pair to close and open said third switch means.
Claim 9
Dependent Claim
45 words
A control system as defined in claim 6, wherein said programming means further comprises means for resetting said timer means when deenergized, and an adjustable cycle cam carried by said output shaft for deenergizing said timer means simultaneously with opening of said third switch means.
Claim 10
Dependent Claim
65 words
A control system as defined in claim 6, wherein said electrical signal means comprises a ready-to-load lamp and not-ready-to-load lamp, and said third switch means includes normally-closed contacts in series with said not-ready-to-load lamp and normally-open contacts in series with said ready-to-load lamp, whereby said third pair of cams are adapted to simultaneously actuate said normally-closed and normally-open contacts to alternately turn on said lamps.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |