US3249674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kiln shut-off device
Assignee: Individual
•
Filing: 1963-07-09
•
Granted: 1966-05-03
•
Expires: 1983-07-09
Abstract
No abstract record available.
Inventors
- 👤 John C Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:02
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0216
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
IN A CERAMIC KILN; A KILN HOUSING; ELECTRICALLY CONTROLLED HEATING MEANS WITHIN SAID HOUSING; AN ELECTRIC CIRCUIT; THERMOSTAT MEANS CONNECTED THEREIN INCLUDING AN ACTUATING ELEMENT IN HEAT CONDUCTIVE ENGAGEMENT WITH AN OUTER WALL SURFACE OF SAID KILN OPERATIVE TO SHUT OFF SAID HEATING MEANS; A DIAL HAVING MARKINGS THEREON CORRESPONDING TO KNOWN TEMPERATURES; AND AN INDICATOR FOR SAID DIAL; ONE OF SAID INDICATOR AND DIAL HAVING A SHAFT ENGAGING AND CONTROLLING THE OPERATION OF SAID THERMOSTAT MEANS SO THAT SAID THERMOSTAT MEANS IS ACTUATED WHEN THE INDICATOR IS SET AT A PARTICULAR MARKING AND THE TEMPERATURE CORRESPONDING TO THE MARKING IS REACHED IN SAID KILN.
References Cited (Backward Citations)
US1533267A
Cited
US1675091A
Cited
US2248867A
Cited
US2266957A
Cited
US2357353A
Cited
US2381310A
Cited
US2882328A
Cited
US2944134A
Cited
US3146692A
Cited
US3038058A
Cited
US3020379A
Cited
US3048028A
Cited
US3094605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |