Patent US4287408A successfully refreshed from Google Patents.
US4287408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination electrically heated material receptacle and instrument heater
Assignee: Individual
•
Filing: 1980-03-10
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Granted: 1981-09-01
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Expires: 2000-03-10
Abstract
Abstract A materials heating device includes rod-shaped electrical heating element which serves both to heat a thermoconductive receptacle containing the material to be heated as well as tools and instruments for working with the material. The heating element is mounted in spaced relationship to the receptacle by a thermoconductive bracket through which heat is conducted to the receptacle to heat the contents thereof. The end of the heating element protrudes from the bracket, whereby tools and instruments to be heated can be held in direct contact with the exposed end portion of the heating element until sufficient heat is transferred thereto. An adjustable heat dissipator can be provided on the receptacle to regulate the temperature of the receptacle.
Inventors
- 👤 Melvin Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:52
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/0028; H; H05; H05B; H05B3/00; H05B3/0014
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
178 words
A materials heating device comprising: a receptacle formed of thermoconductive material; heating means mounted in good heat conducting relationship to said receptacle so as to impart heat to said receptacle and to material received therein; said heating means being separate from said receptacle and including a portion which is exposed to direct contact by an implement, so that said implement can receive heat from said heating means; said heating device further comprising conductive connecting means for connecting said heating element to said receptacle and for conducting heat from said heating element to said receptacle to heat said receptacle; said heating means comprising an elongated heating element, and wherein said connecting means comprises a bracket attached to said receptacle and forming an annular holder which surrounds and holds said elongated heating element in good heat transfer relation thereto and in spaced relationship to said receptacle, said annular holder being shorter in length than said elongated heating element whereby a portion of said elongated heating element is exposed beyond said annular holder for easy contact and access by said implement.
Claim 2
Dependent Claim
178 words
A materials heating device comprising: a receptacle formed of thermoconductive material; heating means mounted in good heat conducting relationship to said receptacle so as to impart heat to said receptacle and to material received therein; said heating means being separate from said receptacle and including a portion which is exposed to direct contact by an implement, so that said implement can receive heat from said heating means; said heating device further comprising conductive connecting means for connecting said heating element to said receptacle and for conducting heat from said heating element to said receptacle to heat said receptacle; said heating means comprising an elongated heating element, and wherein said connecting means comprises a bracket attached to said receptacle and forming an annular holder which surrounds and holds said elongated heating element in good heat transfer relation thereto and in spaced relationship to said receptacle, said annular holder being shorter in length than said elongated heating element whereby a portion of said elongated heating element is exposed beyond said annular holder for easy contact and access by said implement.
Claim 3
Dependent Claim
113 words
A materials heating device comprising: a heating dish formed of thermoconductive material; and a rod shaped heating element heated by electrical current mounted adjacent said heating dish and connected in spaced relationship to said heating dish by a heat conducting bracket means for conducting heat from said heating element to said heating dish to melt materials in said dish, said bracket means including a heating element holder through which said heating element extends, said heating element including an exposed portion protruding from said heating element holder for contacting and heating material not contacting said dish whereby said heating element heats said dish and heats other materials brought into contact with said exposed portion.
Claim 4
Dependent Claim
113 words
A materials heating device comprising: a heating dish formed of thermoconductive material; and a rod shaped heating element heated by electrical current mounted adjacent said heating dish and connected in spaced relationship to said heating dish by a heat conducting bracket means for conducting heat from said heating element to said heating dish to melt materials in said dish, said bracket means including a heating element holder through which said heating element extends, said heating element including an exposed portion protruding from said heating element holder for contacting and heating material not contacting said dish whereby said heating element heats said dish and heats other materials brought into contact with said exposed portion.
Claim 5
Dependent Claim
35 words
The device of claim 2 and further comprising means associated with said bracket means for adjustably attaching said bracket means to said dish to selectively position said heating element at varying distances from said receptacle.
Claim 6
Dependent Claim
30 words
The device of claim 2 and further comprising a finned strip of thermoconductive material adjustably attached to said dish, selectively adjustable to increase the heat dissipating area of said dish.
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) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |