US3471937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clothes drier control system
Assignee: Robertshaw Controls Co
•
Filing: 1958-11-12
•
Granted: 1969-10-14
•
Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 Francis S Genbauffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:45
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/27535; G05D23/27537; D; D06; D06F; D06F58/00; D06F58/32; D06F58/34; D06F58/36; D06F58/38; D06F2103/00; D06F2103/02; D06F2103/08; D06F2103/28; D06F2103/32; D06F2103/38; D06F2105/00; D06F2105/28; D06F2105/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A DRIER COMPRISING MEANS DEFINING A DRYING CHAMBER FOR RECEIVING ARTICLES TO BE DRIED, SAID CHAMBER HAVING AN AIR INLET AND AN AIR OUTLET, MEANS FOR INDUCING A FLOW OF AIR THROUGH SAID CHAMBER FROM SAID INLET TO SAID OUTLET, HEATING MEANS FOR HEATING AIR FOR FLOWING THROUGH SAID INLET, REGULATING MEANS ON SAID HEATING MEANS FOR VARYING HEAT OUTPUT OF SAID HEATING MEANS, FIRST TEMPERATURE RESPONSIVE MEANS FOR CONTROLLING SAID REGULATING MEANS TO VARY THE OUTPUT OF SAID HEATING MEANS TO MAINTAIN THE TEMPERATURE OF AIR ADJACENT SAID OUTLET AT A SUBSTANTIALLY CONSTANT TEMPERATURE, AND SECOND TEMPERATURE RESPONSIVE MEANS OPERABLE IN REPONSE TO A REDUCTION IN THE HEAT OUTPUT OF SAID HEATING MEANS TO A PRE-SELECTED MINIMUM OUTPUT FOR DISCONTINUING OPERATION OF SAID HEATING MEANS.
Claim 2
Dependent Claim
126 words
A DRIER COMPRISING MEANS DEFINING A DRYING CHAMBER FOR RECEIVING ARTICLES TO BE DRIED, SAID CHAMBER HAVING AN AIR INLET AND AN AIR OUTLET, MEANS FOR INDUCING A FLOW OF AIR THROUGH SAID CHAMBER FROM SAID INLET TO SAID OUTLET, HEATING MEANS FOR HEATING AIR FOR FLOWING THROUGH SAID INLET, REGULATING MEANS ON SAID HEATING MEANS FOR VARYING HEAT OUTPUT OF SAID HEATING MEANS, FIRST TEMPERATURE RESPONSIVE MEANS FOR CONTROLLING SAID REGULATING MEANS TO VARY THE OUTPUT OF SAID HEATING MEANS TO MAINTAIN THE TEMPERATURE OF AIR ADJACENT SAID OUTLET AT A SUBSTANTIALLY CONSTANT TEMPERATURE, AND SECOND TEMPERATURE RESPONSIVE MEANS OPERABLE IN REPONSE TO A REDUCTION IN THE HEAT OUTPUT OF SAID HEATING MEANS TO A PRE-SELECTED MINIMUM OUTPUT FOR DISCONTINUING OPERATION OF SAID HEATING MEANS.
References Cited (Backward Citations)
US1903924A
Cited
US1940267A
Cited
US2621423A
Cited
US2654160A
Cited
US2718066A
Cited
US2775047A
Cited
US2878579A
Cited
US2815416A
Cited
US2858618A
Cited
US2825146A
Cited
US2875526A
Cited
US3028680A
Cited
US3037296A
Cited
US3022987A
Cited
US3096971A
Cited
US3045993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |