US3141657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner control for clothes dryers
Assignee: White Rodgers Co
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Filing: 1961-08-28
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Granted: 1964-07-21
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Expires: 1981-08-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Fleer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:13
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/20; D06F58/26; D06F58/263; D06F58/30; D06F2103/00; D06F2103/28; D06F2103/30; D06F2103/32; D06F2105/00; D06F2105/28; D06F34/00; D06F34/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A CLOTHES DRYER, A DRYING DRUM MEANS INCLUDING SAID DRYING DRUM DEFINING AN AIR FLOW PASSAGEWAY HAVING AN INLET PORTION LEADING TO SAID DRUM AND AN OUTLET PORTION LEADING FROM SAID DRUM, A BURNER IN SAID INLET PORTION AND A LINT TRAP IN SAID OUTLET PORTION, A BLOWER IN SAID OUTLET PORTION BETWEEN SAID DRUM AND SAID LINT TRAP AND OPERATIVE TO INDUCE AIR HEATED BY SAID BURNER TO FLOW THROUGH SAID DRUM AND EXHAUST THROUGH SAID OUTLET PORTION, SAID BLOWER HAVING A LOW PRESSURE SIDE, A FUEL CONDUIT LEADING TO SAID BURNER, A NORMALLY CLOSED VALVE IN SAID CONDUIT, A PNEUMATIC ACTUATOR OPERATIVELY CONNECTED TO SAID VALVE AND OPERATIVE IN RESPONSE TO A DROP IN PRESSURE BELOW ATMOSPHERIC TO OPEN SAID VALVE, AND CONDUIT MEANS CONNECTING SAID ACTUATOR WITH SAID OUTLET PORTION OF SAID PASSAGEWAY AT A POINT ADJACENT SAID BLOWER AND ON THE LOW PRESSURE SIDE THEREOF.
Claim 2
Dependent Claim
150 words
IN A CLOTHES DRYER, A DRYING DRUM MEANS INCLUDING SAID DRYING DRUM DEFINING AN AIR FLOW PASSAGEWAY HAVING AN INLET PORTION LEADING TO SAID DRUM AND AN OUTLET PORTION LEADING FROM SAID DRUM, A BURNER IN SAID INLET PORTION AND A LINT TRAP IN SAID OUTLET PORTION, A BLOWER IN SAID OUTLET PORTION BETWEEN SAID DRUM AND SAID LINT TRAP AND OPERATIVE TO INDUCE AIR HEATED BY SAID BURNER TO FLOW THROUGH SAID DRUM AND EXHAUST THROUGH SAID OUTLET PORTION, SAID BLOWER HAVING A LOW PRESSURE SIDE, A FUEL CONDUIT LEADING TO SAID BURNER, A NORMALLY CLOSED VALVE IN SAID CONDUIT, A PNEUMATIC ACTUATOR OPERATIVELY CONNECTED TO SAID VALVE AND OPERATIVE IN RESPONSE TO A DROP IN PRESSURE BELOW ATMOSPHERIC TO OPEN SAID VALVE, AND CONDUIT MEANS CONNECTING SAID ACTUATOR WITH SAID OUTLET PORTION OF SAID PASSAGEWAY AT A POINT ADJACENT SAID BLOWER AND ON THE LOW PRESSURE SIDE THEREOF.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |