US3099022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of operating a washing machine
Assignee: Maschinenfabrik Peter Pfenningsberg GmbH
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Filing: 1961-07-12
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Granted: 1963-07-30
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Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 Geschka Hugo Werner
- 👤 Gillessen Josef Leonard
- 👤 Heidenreich Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:48
CPC Classifications
D; D06; D06F; D06F34/00; D06F34/08; D06F34/28; D06F34/30; D06F35/00; D06F35/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A METHOD OF OPERATING AN AUTOMIATIC WASHING MACHINE IN WHICH FRESH WATER IS SUPPLIED DURING THE WETTING, WASHING AND RINSING STAGES IN SEPARATE PORTIONS AT INTERVALS TO A WASHING DRUM WHICH IS INTERMITTENTLY DRIVEN, AND A CORRESPONDING AMOUNT OF USED LIQUID IS DISCHARGED THROUGH AN OVERFLOW, THE IMPROVEMENT WHICH COMPRISES THE STEP OF CONTROLLING THE FLOW OF WATER SO THAT THE SUPPLY OF PORTIONS OF FRESH WATER DURING THE WETTING AND RINSING STAGES TAKES PLACE DURING THE ROTARY MOVEMENTS OF THE WASHING DRUM AND IN THE WASHING STAGES WHEN THE WASHING DRUM IS STATIONARY.
Claim 2
Dependent Claim
95 words
IN A METHOD OF OPERATING AN AUTOMIATIC WASHING MACHINE IN WHICH FRESH WATER IS SUPPLIED DURING THE WETTING, WASHING AND RINSING STAGES IN SEPARATE PORTIONS AT INTERVALS TO A WASHING DRUM WHICH IS INTERMITTENTLY DRIVEN, AND A CORRESPONDING AMOUNT OF USED LIQUID IS DISCHARGED THROUGH AN OVERFLOW, THE IMPROVEMENT WHICH COMPRISES THE STEP OF CONTROLLING THE FLOW OF WATER SO THAT THE SUPPLY OF PORTIONS OF FRESH WATER DURING THE WETTING AND RINSING STAGES TAKES PLACE DURING THE ROTARY MOVEMENTS OF THE WASHING DRUM AND IN THE WASHING STAGES WHEN THE WASHING DRUM IS STATIONARY.
References Cited (Backward Citations)
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Cited
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US2676088A
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US2677259A
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |