Patent US4490923A successfully refreshed from Google Patents.
US4490923A
Expired / Lapsed
US
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Microwave clothes dryer
Assignee: Individual
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Filing: 1982-11-29
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Granted: 1985-01-01
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Expires: 2002-11-29
Abstract
Abstract A clothes dryer comprising a stationary container with means for the passage of air therethrough, and a source of electromagnetic energy for generating microwaves through the clothing to dry the latter. A microwave stirrer in the magnetron wave guide randomly directs the microwaves for uniform distribution through the clothing and the frusto-conical shape of the clothing container cooperates to reflect the microwaves to enhance the drying operation.
Inventors
- 👤 Perry W. Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:14
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/10; D06F58/20; D06F58/26; D06F58/266
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
159 words
A clothes dryer comprising: a cabinet; a clothes container mounted in a stationary position in said cabinet for receiving damp clothes, said container having a generally frustoconical side wall which tapers from top to bottom; means for generating electromagnetic microwave energy; a waveguide in said cabinet for receiving the microwave energy, said waveguide having an open end which opens into said container adjacent the top thereof to guide the microwave energy into the container for application to the damp clothing therein; a deflector located adjacent the open end of said waveguide, said deflector inclining downwardly and inwardly into said container and being located above said open end of the waveguide to deflect the microwave energy entering the container generally downwardly and inwardly toward the clothes disposed in the container for effective application of the microwave energy to the clothes; and means for passing air through said container to ventilate the interior thereof and transport moisture out of the container.
Claim 2
Dependent Claim
159 words
A clothes dryer comprising: a cabinet; a clothes container mounted in a stationary position in said cabinet for receiving damp clothes, said container having a generally frustoconical side wall which tapers from top to bottom; means for generating electromagnetic microwave energy; a waveguide in said cabinet for receiving the microwave energy, said waveguide having an open end which opens into said container adjacent the top thereof to guide the microwave energy into the container for application to the damp clothing therein; a deflector located adjacent the open end of said waveguide, said deflector inclining downwardly and inwardly into said container and being located above said open end of the waveguide to deflect the microwave energy entering the container generally downwardly and inwardly toward the clothes disposed in the container for effective application of the microwave energy to the clothes; and means for passing air through said container to ventilate the interior thereof and transport moisture out of the container.
Claim 3
Dependent Claim
70 words
The invention of claim 1, including: an access door on a top portion of said cabinet having an open position providing access to the interior of said container; a collar on top of said container, said collar being tapered from bottom to top and having a top end adjacent said door; and said waveguide being connected to said collar with said open end of the waveguide opening through the collar.
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) | 1988-01-01 | 1988-07-02 | 1989-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-01 | 1992-07-02 | 1993-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-01 | 1996-07-02 | 1997-01-01 | $7700.00 | Window Closed / Lapsed |