US2825665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dishwasher apparatus and method
Assignee: General Electric Co
•
Filing: 1953-09-29
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Granted: 1958-03-04
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Expires: 1973-09-29
Abstract
No abstract record available.
Inventors
- 👤 Edgar S Stoddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:48
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/02; A47L15/06; A47L15/0002; A47L2601/00; A47L2601/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
THE METHOD OF WASHING DISHES ARRANGED IN MUTUALLY SPACED RELATION IN A WASHING VAT, COMPRISING THE STEPS OF RINSING THE LOOSE SOIL FROM THE DISHES BY CIRCULATING RISING LIQUID AMONG SAID DISHES WHILE EFFECING CONTINUOUS DRAINAGE FROM SAID VAT; INTRODUCING INTO SAID VAT A QUANTITY OF HEATED WATER AND A QUANTITY OF DETERGENT AND CIRCULATING THE RESULTANT MIXTURE AMONG SAID DISHES FROM A PREDETERMINED INTERVAL WHILE SUBSTANTIALLY PREVENTING DRAINAGE FROM SAID VAT; PERMITTING SAID MIXTURE TO DRAIN FROM THE VAT; RINSING SAID DISHES WITH CLEAR WATER; DRAINING SAID RINSE WATER FROM SAID VAT; INTRODUCING INTO SAID VAT A QUANTITY OF UNHEATED WATER AND A SECOND QUANTITY OF DETERGENT AND CIRCULATING THE RESULTANT MIXTURE AMONG SAID DISHES FOR A PREDETERMINED INTERVAL WHILE SUBSTANTIALLY PREVENTING DRAINAGE FROM SAID VAT; INTERRUPTING SAID CIRCULATION AND DRAINING THE MIXTURE FROM SAID VAT; INTRODUCING INTO SAID VAT THE CIRCULATING AMONG SAID DISHES A QUANTITY OF HEATED RINSING WATER AND FINALLY DRAINING SAID RINSE WATER FROM SAID VAT.
Claim 2
Dependent Claim
134 words
DISHWASHING APPARATUS, INCLUDING A VAT HAVING MEANS FOR SUPPORTING A PLURALITY OF DISHES TO BE WASHED; WATER INLET VALVE MEANS FOR INTRODUCING INTO SAID VAT, AT SEPARATED PERIODS OF A COMPLETE WASHING OPERATION, A QUANTITY OF HEATED WATER AND A QUANTITY OF UNHEATED WATER; IMPELLER MEANS OPERABLE TO CIRCULATE SAID WATER ABOUT THE DISHES IN SAID VAT; MEANS COMPRISING INDIVIDUAL CONTAINERS DISPOSED WITHIN SAID VAT FOR ACCOMMODATING QUANTITIES OF DETERGENT; MEANS INCLUDING SAID IMPELLER MEANS FOR CAUSING SAID DETERGENT TO BE MIXED INTO SAID HEATED AND SAID UNHEATED WATER TO PROVIDE A DETERGENT SOLUTION; DRAIN VALVE MEANS FOR CONTROLLING THE REMOVAL OF SPENT DETERGENT SOLUTION FROM SAID VAT FOLLOWING A WASHING OPERATION, AND CYCLE-CONTROL MEANS FOR EFFECTING OPERATION; AND CYCLE-CONTROL MEANS FOR EFFECTING MEANS, AND SAID DRAIN VALVE MEANS IN A DESIRED OPERATIONAL SEQUENCE.
References Cited (Backward Citations)
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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) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |