Patent US4057907A successfully refreshed from Google Patents.
US4057907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for drying clothes
Assignee: Individual
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Filing: 1976-07-26
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Granted: 1977-11-15
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Expires: 1996-07-26
Abstract
Abstract A dryer for the rapid drying of clothing and other articles is disclosed. The dryer includes a chamber which receives the clothes or other articles. A vacuum pump reduces the air pressure within the chamber to below atmospheric. A microwave emitter directs radiant energy into the wet clothing to excite the water molecules while an ultrasonic generator is adjacent the chamber for breaking large water aggregates into smaller units.
Inventors
- 👤 Norman G. Rapino
- 👤 Frank P. DeMuro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:47
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/20; D06F58/26; D06F58/266; A; A45; A45D; A45D20/00; A45D20/44; A45D20/46
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
53 words
A method of drying clothes comprising the steps of placing the clothes in a sub-atmospheric space, maintaining the sub-atmospheric pressure within the space, agitating the clothes, ultrasonically vibrating the clothes to break large water agglomerates into smaller units and applying microwave radiation to the clothes to excite the water molecules and speed evaporation.
Claim 2
Independent Claim
53 words
A method of drying clothes comprising the steps of placing the clothes in a sub-atmospheric space, maintaining the sub-atmospheric pressure within the space, agitating the clothes, ultrasonically vibrating the clothes to break large water agglomerates into smaller units and applying microwave radiation to the clothes to excite the water molecules and speed evaporation.
Claim 3
Dependent Claim
75 words
A clothes dryer comprising, in combination, chamber means for receiving clothes to be dried, pressure reducing means in communication with said chamber means for reducing the pressure within said chamber means to below atmospheric and for maintaining the below atmospheric pressure within the space, an ultrasonic generator means adjacent said chamber means for breaking large water aggregates into smaller units and microwave means adjacent said chamber means for exciting the water molecules thereby speeding evaporation.
Claim 4
Dependent Claim
75 words
A clothes dryer comprising, in combination, chamber means for receiving clothes to be dried, pressure reducing means in communication with said chamber means for reducing the pressure within said chamber means to below atmospheric and for maintaining the below atmospheric pressure within the space, an ultrasonic generator means adjacent said chamber means for breaking large water aggregates into smaller units and microwave means adjacent said chamber means for exciting the water molecules thereby speeding evaporation.
Claim 5
Dependent Claim
108 words
A clothes dryer comprising, in combination, a cabinet having an entrance door, said cabinet being airtight wherein a sub-atmospheric pressure may be maintained, a drum mounted for rotation within said cabinet, said drum defining an opening in communication with said entrance door whereby wet articles can be placed within said drum, motor means for rotating said drum, a vacuum pump in communication with said cabinet for reducing the pressure within said cabinet to sub-atmospheric, ultrasonic generator means adjacent said cabinet and said drum for breaking large water agglomerates into smaller units and microwave means adjacent said cabinet and said drum for exciting the water molecules thereby speeding evaporation.
Claim 6
Dependent Claim
108 words
A clothes dryer comprising, in combination, a cabinet having an entrance door, said cabinet being airtight wherein a sub-atmospheric pressure may be maintained, a drum mounted for rotation within said cabinet, said drum defining an opening in communication with said entrance door whereby wet articles can be placed within said drum, motor means for rotating said drum, a vacuum pump in communication with said cabinet for reducing the pressure within said cabinet to sub-atmospheric, ultrasonic generator means adjacent said cabinet and said drum for breaking large water agglomerates into smaller units and microwave means adjacent said cabinet and said drum for exciting the water molecules thereby speeding evaporation.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |