Patent US3252227A successfully refreshed from Google Patents.
US3252227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner control system for clothes dryers
Assignee: White Rodgers Co
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Filing: 1962-05-21
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Granted: 1966-05-24
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Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Fleer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:40
CPC Classifications
D; D06; D06F; D06F34/00; D06F34/08; D06F2103/00; D06F2103/02; D06F2103/08; D06F2103/28; D06F2103/32; D06F2105/00; D06F2105/28; D06F2105/62; D06F58/00; D06F58/20; D06F58/26; D06F58/263; D06F58/32; D06F58/34; D06F58/36; D06F58/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
IN A CLOTHES DRYER, A CASING, A ROTATABLE DRYING DRUM HAVING A CENTRAL AXIAL OPENING, A HEAT PRODUCER, MEANS FOR ROTATING SAID DRUM AND MEANS FOR CIRCULATING HEATED AIR THERETHROUGH; A FIRST CONTROL MEANS FOR VARYING THE HEAT OUTPUT OF SAID HEAT PRODUCER, A FIRST THERMOSTATIC DEVICE RESPONSIVE TO THE TEMPERATURE IN SAID DRUM, SAID THERMOSTATIC DEVICE BEING OPERATIVELY CONNECTED TO SAID CONTROL MEANS AND BEING OPERATIVE TO VARY THE HEAT OUTPUT OF SAID HEAT PRODUCER IN ACCORDANCE WITH REQUIREMENTS TO CLOSELY MAINTAIN A PREDETERMINED DRYING TEMPERATURE WITHIN SAID DRUM, A SECOND ON AND OFF CONTROL MEANS OPERATIVE TO PERMIT OR PREVENT OPERATION OF SAID HEAT PRODUCER AND BEING NORMALLY IN AN ON POSITION, A SECOND THERMOSTATIC DEVICE INCLUDING A TEMPERATURE SENSING ELEMENT SUPPORTED ON SAID CASING AND PROJECTING INTO SAID DRUM THROUGH SAID OPENING, AND SAID SENSING ELEMENT BEING ARRANGED TO BE CONTACTED BY ARTICLES OF THE LOAD BEING DRIED, AND SAID SECOND THERMOSTATIC DEVICE BEING OPERATIVE TO EFFECT THE
Claim 2
Dependent Claim
161 words
IN A CLOTHES DRYER, A CASING, A ROTATABLE DRYING DRUM HAVING A CENTRAL AXIAL OPENING, A HEAT PRODUCER, MEANS FOR ROTATING SAID DRUM AND MEANS FOR CIRCULATING HEATED AIR THERETHROUGH; A FIRST CONTROL MEANS FOR VARYING THE HEAT OUTPUT OF SAID HEAT PRODUCER, A FIRST THERMOSTATIC DEVICE RESPONSIVE TO THE TEMPERATURE IN SAID DRUM, SAID THERMOSTATIC DEVICE BEING OPERATIVELY CONNECTED TO SAID CONTROL MEANS AND BEING OPERATIVE TO VARY THE HEAT OUTPUT OF SAID HEAT PRODUCER IN ACCORDANCE WITH REQUIREMENTS TO CLOSELY MAINTAIN A PREDETERMINED DRYING TEMPERATURE WITHIN SAID DRUM, A SECOND ON AND OFF CONTROL MEANS OPERATIVE TO PERMIT OR PREVENT OPERATION OF SAID HEAT PRODUCER AND BEING NORMALLY IN AN ON POSITION, A SECOND THERMOSTATIC DEVICE INCLUDING A TEMPERATURE SENSING ELEMENT SUPPORTED ON SAID CASING AND PROJECTING INTO SAID DRUM THROUGH SAID OPENING, AND SAID SENSING ELEMENT BEING ARRANGED TO BE CONTACTED BY ARTICLES OF THE LOAD BEING DRIED, AND SAID SECOND THERMOSTATIC DEVICE BEING OPERATIVE TO EFFECT THE
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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |