Patent US3371592A successfully refreshed from Google Patents.
US3371592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric coffeemaker for domestic use
Assignee: Rowenta Werke GmbH
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Filing: 1966-11-09
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Granted: 1968-03-05
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Expires: 1986-11-09
Abstract
No abstract record available.
Inventors
- 👤 Remy Hermann
- 👤 Wohlfart Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:57
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/057; A47J31/0573; A47J31/24; A47J31/32; A47J31/44; A47J31/54; A47J31/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
AN ELECTRIC COFFEEMAKER COMPRISING IN COMBINATION: (A) A PRESSURE TIGHT CLOSED WATER BOILER; (B) A PRESSURE TIGHT RECEPTACLE FOR COFFEE GROUND CONNECTED TO SAID BOILER; (C) AN ELECTRICALLY OPERATED AIR PUMP CONNECTED TO SAID BOILER FOR PRESSURE FEEDING OF WATER FROM THE BOILER TO SAID RECEPTCLE BY A BUILD-UP OF AIR PRESSURE IN THE BOILER; (D) ELECTRIC HEATING MEANS FOR HEATING WATER IN SAID BOILER; (E) AN OPEN AIR VENTING PIPE CONNECTED TO SAID BOILER; (F) A MOVABLE CLOSURE MEANS FOR CLOSING SAID VENTING PIPE; (G) AN ELECTROMAGNETIC RELAY MEANS CONTROLLING SAID BOILER HEATING MEANS, SAID PUMP AND SAID CLOSURE MEANS, SAID RELAY MEANS IN A FIRST STATE OF ENERGIZATION ENERGIZING THE HEATING MEANS AND OPENING THE VENTING PIPE; AND (H) A TEMPERATURE SENSITIVE CONTROL MEANS CONTROLLING SAID RELAY MEANS TO CHANGE THE STATE OF ENERGIZATION THEREOF FROM THE FIRST STATE TO A SECOND STATE AND CONTROLLED BY SAID BOILER REACHING A PREDETERMINED TEMPERATURE; (I) SAID CHANGE IN THE STATE OF ENERGIZATION OF SAID RELAY MEANS CAUSING MOVEMENT OF SAID CLOSURE MEANS INTO THE VENTING PIPE CLOSING POSITION, DISCONNECTION OF THE HEATING MEANS AND STARTING OF THE PUMP.
Claim 2
Dependent Claim
188 words
AN ELECTRIC COFFEEMAKER COMPRISING IN COMBINATION: (A) A PRESSURE TIGHT CLOSED WATER BOILER; (B) A PRESSURE TIGHT RECEPTACLE FOR COFFEE GROUND CONNECTED TO SAID BOILER; (C) AN ELECTRICALLY OPERATED AIR PUMP CONNECTED TO SAID BOILER FOR PRESSURE FEEDING OF WATER FROM THE BOILER TO SAID RECEPTCLE BY A BUILD-UP OF AIR PRESSURE IN THE BOILER; (D) ELECTRIC HEATING MEANS FOR HEATING WATER IN SAID BOILER; (E) AN OPEN AIR VENTING PIPE CONNECTED TO SAID BOILER; (F) A MOVABLE CLOSURE MEANS FOR CLOSING SAID VENTING PIPE; (G) AN ELECTROMAGNETIC RELAY MEANS CONTROLLING SAID BOILER HEATING MEANS, SAID PUMP AND SAID CLOSURE MEANS, SAID RELAY MEANS IN A FIRST STATE OF ENERGIZATION ENERGIZING THE HEATING MEANS AND OPENING THE VENTING PIPE; AND (H) A TEMPERATURE SENSITIVE CONTROL MEANS CONTROLLING SAID RELAY MEANS TO CHANGE THE STATE OF ENERGIZATION THEREOF FROM THE FIRST STATE TO A SECOND STATE AND CONTROLLED BY SAID BOILER REACHING A PREDETERMINED TEMPERATURE; (I) SAID CHANGE IN THE STATE OF ENERGIZATION OF SAID RELAY MEANS CAUSING MOVEMENT OF SAID CLOSURE MEANS INTO THE VENTING PIPE CLOSING POSITION, DISCONNECTION OF THE HEATING MEANS AND STARTING OF THE PUMP.
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |