US3333087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatically controlled electric percolator
Assignee: PROCTOR SILEX CORP
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Filing: 1965-10-22
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Granted: 1967-07-25
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Luther P Manship
- 👤 Charles R Turner
- 👤 Stephen W Zamiska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:02
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213; A; A47; A47J; A47J31/00; A47J31/04; A47J31/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN AN ELECTRIC PERCOLATOR, A BASE, A MEMBER MOUNTED ON SAID BASE INCLUDING WALLS DEFINING A HEAT-PUMP WELL, A CONTAINER FOR LIQUID HAVING A BOTTOM WITH UPWARDLY EXTENDING SIDEWALLS AND HAVING AN OPENING IN THE BOTTOM THEREOF COMMUNICATING WITH SAID HEAT-PUMP WELL, AN ANNULAR HEAT WITHIN SAID WELL SPACED FROM THE TOP THEREOF, A FOUNTAIN TUBE INCLUDING A DISC SECURED TO THE BOTTOM THEREOF ADAPTED TO REST ON SAID ANNULAR SEAT, THEREBY DIVIDING THE WELL INTO AN UPPR AND A LOWER COMPARTMENT, A PRIMARY ELECTRIC HEATER FOR PERCOLATION IN HEAT-TRANSFER RELATIONSHIP PRIMARILY WITH THE LOWER COMPARTMENT AND THERMOSTATIC SWITCH MEANS INCLUDING A THERMOMOTIVE MEMBER CONNECTED TO SAID MEMBER IN DIRECT CONDUCTIVE HEAT-TRANSFER RELATIONSHIP WITH SAID UPPER COMPARTMENT, WHEREBY SAID THERMOMOTIVE MEMBER WILL SENSE THE TEM-
Claim 2
Dependent Claim
125 words
IN AN ELECTRIC PERCOLATOR, A BASE, A MEMBER MOUNTED ON SAID BASE INCLUDING WALLS DEFINING A HEAT-PUMP WELL, A CONTAINER FOR LIQUID HAVING A BOTTOM WITH UPWARDLY EXTENDING SIDEWALLS AND HAVING AN OPENING IN THE BOTTOM THEREOF COMMUNICATING WITH SAID HEAT-PUMP WELL, AN ANNULAR HEAT WITHIN SAID WELL SPACED FROM THE TOP THEREOF, A FOUNTAIN TUBE INCLUDING A DISC SECURED TO THE BOTTOM THEREOF ADAPTED TO REST ON SAID ANNULAR SEAT, THEREBY DIVIDING THE WELL INTO AN UPPR AND A LOWER COMPARTMENT, A PRIMARY ELECTRIC HEATER FOR PERCOLATION IN HEAT-TRANSFER RELATIONSHIP PRIMARILY WITH THE LOWER COMPARTMENT AND THERMOSTATIC SWITCH MEANS INCLUDING A THERMOMOTIVE MEMBER CONNECTED TO SAID MEMBER IN DIRECT CONDUCTIVE HEAT-TRANSFER RELATIONSHIP WITH SAID UPPER COMPARTMENT, WHEREBY SAID THERMOMOTIVE MEMBER WILL SENSE THE TEM-
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |