Patent US5079406A successfully refreshed from Google Patents.
US5079406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating device using a voltage stabilizer
Assignee: PAJ IMPORTERS Ltd
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Filing: 1990-07-12
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Granted: 1992-01-07
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Expires: 2010-07-12
Abstract
Abstract A heating device in which a conventional voltage stabilizer having internal heat protection circuitry for limiting the heat which it will or can internally generate and having internal electrical short circuit protection means is employed to generate heat for transfer top heat transfer means. The heating device may be used in connection with automotive external rear view mirrors for removing fog, ice and/or water which condenses on the outer surface of the mirror.
Inventors
- 👤 Laszlo Nagy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:26
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B1/023; H05B1/0236; B; B60; B60R; B60R1/00; B60R1/02; B60R1/06; B60R1/0602; H05B3/00; H05B3/84; H05B3/845
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
122 words
In a device containing a surface to be heated, a voltage stabilizer of the type containing means for limiting the current to and through the stabilizer when the stabilizer is short circuited, said stabilizer mounted adjacent the surface to be heated, said stabilizer having an output lead, a ground lead and an input lead; means for connecting the output and ground leads to each other so that the stabilizer, when energized, will operate in its short circuit mode, and means for connecting the input lead to a source of electrical power for operating the said stabilizer, said stabilizer generating heat when in operation; and means for transferring the heat generated by the said stabilizer during operation to the surface to be heated.
Claim 2
Dependent Claim
122 words
In a device containing a surface to be heated, a voltage stabilizer of the type containing means for limiting the current to and through the stabilizer when the stabilizer is short circuited, said stabilizer mounted adjacent the surface to be heated, said stabilizer having an output lead, a ground lead and an input lead; means for connecting the output and ground leads to each other so that the stabilizer, when energized, will operate in its short circuit mode, and means for connecting the input lead to a source of electrical power for operating the said stabilizer, said stabilizer generating heat when in operation; and means for transferring the heat generated by the said stabilizer during operation to the surface to be heated.
Claim 3
Dependent Claim
26 words
The heating device according to claim 1, in which the means for connecting the output and ground leads to each other is a short circuit connection.
Claim 4
Dependent Claim
49 words
The heating device according to one of claims 1 and 2 further comprising light emitting means in parallel connection with the input lead of the said stabilizer, said light emitting means being adapted to operate and supply light to indicate that the stabilizer has been energized and is operational.
Claim 5
Dependent Claim
21 words
The heating device according to claim 1 in which the device to be heated is an automotive external rear view mirror.
Claim 6
Dependent Claim
107 words
The heating device according to claim 4 in which the said rear view mirror comprises a mirror mounted in a casing, said stabilizer mounted in said casing and spaced from the anterior surface of the said mirror; said means for transferring heat from the stabilizer to the surface of the mirror comprising a heat conducting metal plate mounted in proximity to the anterior surface of the mirror; and means for transferring the heat generated by the stabilizer to the mirror by conduction comprising means for mounting the stabilizer on said heat conducting plate which is capable of conducting heat from the stabilizer to the heat conducting plate.
Claim 7
Dependent Claim
20 words
The device according to claim 5 in which the stabilizer is spaced a preselected distance from the heat conducting plate.
Claim 8
Dependent Claim
29 words
The device according to claim 6 in which the means for transferring heat from the stabilizer to the heat conducting plate comprises a screw made of heat conducting material.
Claim 9
Dependent Claim
25 words
The device according to claim 6 in which the means for transferring heat from the stabilizer to the heat conducting plate is a bi-metallic bridle.
Claim 10
Dependent Claim
29 words
The device according to claim 5 in which the heat conducting plate is mounted such that it is spaced a preselected distance from the anterior surface of the mirror.
Claim 11
Dependent Claim
43 words
The device according to claim 1 further comprising an impedance connected to the output of the said stabilizer, in which the impedance has a ohmic resistance having a value equal to about one fifth of the nominal load of the said stabilizer load.
Claim 12
Dependent Claim
29 words
The device according to claim 10 in which the impedance comprises a pair of resistors made of metal, said resistors being located along two sides of the said stabilizer.
Claim 13
Dependent Claim
35 words
The device according to claim 1 in which a switching means comprises a temperature sensor adapted to close a switch when ambient temperature reaches a preselected level to permit power to flow to the stabilizer.
Claim 14
Dependent Claim
35 words
The device according to claim 1 in which a switching means comprises a humidity sensor adapted to close a switch when ambient humidity reaches a preselected level to permit power to flow to the stabilizer.
References Cited (Backward Citations)
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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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |