US3239945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat and blower control for a dryer
Assignee: Whirlpool Corp
•
Filing: 1962-10-10
•
Granted: 1966-03-15
•
Expires: 1982-10-10
Abstract
No abstract record available.
Inventors
- 👤 Clifton A Cobb
- 👤 James T Williams
- 👤 William F Gourdeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:51
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/02; D06F58/04; D06F58/08; D06F43/00; D06F43/02; D06F2103/00; D06F2103/28; D06F2103/36; D06F2105/00; D06F2105/16; D06F2105/24; D06F2105/28; D06F2105/30; D06F34/00; D06F34/08; D06F58/32; D06F58/34; D06F58/36; D06F58/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
IN A CLOTHES DRYER FOR DRYING FABRICS INCLUDING MEANS DEFINING A DRYING ZONE FOR RECEIVING DAMP FABRICS TO BE DRIED, THE IMPROVEMENT COMPRISING: AIR TRANSLATION MEANS FOR MOVING AIR THROUGH SAID DRYING ZONE, DRIVE MEANS INCLUDING A TRANSMISSION HAVING MEANS FOR VARYING THE SPEED RATIOS FOR DRIVING SAID AIR TRANSLATION MEANS AT DIFFERENT RATES OF AIR FLOW, A PLURALITY OF HEATERS FOR HEATING AIR MOVING THROUGH SAID DRYING ZONE, CIRCUIT MEANS INCLUDING SWITCH MEANS FOR SELECTIVELY ENERGIZING SAID HEATERS TO VARY THE HEAT INPUT, AND COMMON CONTROL MEANS INTERCONNECTED TO SAID TRANSMISSION AND TO SAID SWITCH MEANS FOR SIMULTANEOUSLY EFFECTING A COORDINATED CHANGE OF HEAT INPUT AND AIR FLOW THROUGH SAID DRYING ZONE.
References Cited (Backward Citations)
US2198420A
Cited
US2288227A
Cited
US2398880A
Cited
US2621423A
Cited
US2742793A
Cited
US2798302A
Cited
US2825146A
Cited
US2819540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |