Patent US4640284A successfully refreshed from Google Patents.
US4640284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot and cold direct contact applicator
Assignee: Individual
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Filing: 1985-07-22
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Granted: 1987-02-03
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Expires: 2005-07-22
Abstract
Abstract A therapeutic device for applying structures in direct contact with the skin of the human body to heat and to cool the same. A hot plate and a cool plate are provided on opposite sides of conventional electrical means to produce the heating and cooling. A plurality of vanes normal to the hot plate are fixed thereto and extend to an auxiliary plate to which they are also fixed. The vanes and the auxiliary plate aid in reducing the temperature of the hot plate and thereby aid in reducing the temperature of the cold plate. A fabric sock having differently weighted swatch portions for different thermal insulation surrounds the cold and auxiliary plates. A fan cools the vanes. A tray shaped body support is provided with holes to permit the escape of warm air produced by the fan.
Inventors
- 👤 Max J. Ruderian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:07
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/007; A61F2007/0001; A61F2007/0087; A61H; A61H15/00; A61H2201/00; A61H2201/02; A61H2201/0207; A61H2201/0214; A61H2201/0221; A61H2201/025; A61H2201/10; A61H2201/105; A61H23/00; A61H23/02; A61H23/0254; A61H23/0263; A61M; A61M15/00; A61M15/08; A61M2205/00; A61M2205/59
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
140 words
A hot and cold direct contact applicator comprising: hot and cold parallel thermally conductive plates defining a space therebetween; circuit means fixed to said hot and cold plates in said space between the same; said circuit means being actuable by a voltage applied thereto to cause heat to be withdrawn from said cold plate and to cause heat to be added to said hot plate; a thermally conductive auxiliary plate parallel to said hot and cold plates; a plurality of thermally conductive parallel vanes fixed between and to said hot and auxiliary plates to act as a heat sink and dissipate at least some of the heat retained in said hot plate, said vanes defining spaces therebetween; and a fabric sock positioned around said cold and auxiliary plates, said sock having different circumferential swatch portions of different corresponding thermal insulation.
Claim 2
Dependent Claim
140 words
A hot and cold direct contact applicator comprising: hot and cold parallel thermally conductive plates defining a space therebetween; circuit means fixed to said hot and cold plates in said space between the same; said circuit means being actuable by a voltage applied thereto to cause heat to be withdrawn from said cold plate and to cause heat to be added to said hot plate; a thermally conductive auxiliary plate parallel to said hot and cold plates; a plurality of thermally conductive parallel vanes fixed between and to said hot and auxiliary plates to act as a heat sink and dissipate at least some of the heat retained in said hot plate, said vanes defining spaces therebetween; and a fabric sock positioned around said cold and auxiliary plates, said sock having different circumferential swatch portions of different corresponding thermal insulation.
Claim 3
Dependent Claim
35 words
The invention as defined in claim 1, wherein: said hot plate and said auxiliary plate have facing parallel flat surfaces, said vanes being flat and normal to said hot plate and auxiliary plate flat surfaces.
Claim 4
Dependent Claim
98 words
The invention as defined in claim 1, wherein: a fan is fixed relative to said vanes at one end thereof to blow air into the spaces therebetween, a tray shaped body is fixed relative to said plates and vanes, and a cover plate is provided to fit over said body, said body having holes through one wall thereof to permit the flow of air outwardly of the spaces between said vanes at the other end thereof, said body having an aperture through which said cold plate projects, said cover plate having an aperture through which said vanes project.
Claim 5
Dependent Claim
205 words
A hot and cold direct contact applicator, comprising: hot and cold parallel thermally conductive plates defining a space therebetween; circuit means fixed to said hot and cold plates in said space between the same; said circuit means being actuable by a voltage applied thereto to cause heat to be withdrawn from said cold plate and to cause heat to be added to said hot plate; a thermally conductive auxiliary plate parallel to said hot and cold plates; a plurality of thermally conductive parallel vanes fixed between and to said hot and auxiliary plates to act as a heat sink and to dissipate at least some of the heat retained in said hot plate, said vanes defining spaces therebetween; a fan fixed relative to said vanes at one end thereof to blow air into the spaces therebetween; a tray shaped body fixed relative to said plates and vanes; and a cover plate provided to fit over said body; said body having holes through one wall thereof to permit the flow of air outwardly of the spaces between said vanes at the other end thereof; said body having an aperture through which said cold plate projects; said cover plate having an aperture through which said vanes project.
Claim 6
Dependent Claim
205 words
A hot and cold direct contact applicator, comprising: hot and cold parallel thermally conductive plates defining a space therebetween; circuit means fixed to said hot and cold plates in said space between the same; said circuit means being actuable by a voltage applied thereto to cause heat to be withdrawn from said cold plate and to cause heat to be added to said hot plate; a thermally conductive auxiliary plate parallel to said hot and cold plates; a plurality of thermally conductive parallel vanes fixed between and to said hot and auxiliary plates to act as a heat sink and to dissipate at least some of the heat retained in said hot plate, said vanes defining spaces therebetween; a fan fixed relative to said vanes at one end thereof to blow air into the spaces therebetween; a tray shaped body fixed relative to said plates and vanes; and a cover plate provided to fit over said body; said body having holes through one wall thereof to permit the flow of air outwardly of the spaces between said vanes at the other end thereof; said body having an aperture through which said cold plate projects; said cover plate having an aperture through which said vanes project.
Claim 7
Dependent Claim
35 words
The invention as defined in claim 4, wherein: said hot plate and said auxiliary plate have facing parallel flat surfaces, said vanes being flat and normal to said hot plate and auxiliary plate flat surfaces.
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) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |