US3816705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for heating thermoplastic eyeglass frames
Assignee: Individual
•
Filing: 1971-12-13
•
Granted: 1974-06-11
•
Expires: 1991-12-13
Abstract
Abstract A device for heating a thermoplastic eyeglass frame having a rim and bridge portion and a temple portion includes a housing having a pair of spaced infrared heat radiating surfaces mounted therein. The surfaces form an open-ended channel therebetween for receiving one of the eyeglass frame portions while permitting the other of said frame portions to remain out of range of the heat radiating surfaces. The heat radiating surfaces comprise spaced external surfaces on a heating block having a heating element embedded therein. The heating element is spaced remotely from the heat radiating surfaces so as not to subject the portion of the frame in the channel to direct heat from the element. A fan in the housing provides for circulation of ambient air through the housing for preventing overheating of the housing. Some of the circulated air is diverted through apertures in the radiating surfaces into the channel to prevent entrance of cold drafts to the channel. A temperature control regulates the temperature of the radiating surfaces.
Inventors
- 👤 E Ebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:54
CPC Classifications
H; H05; H05B; H05B3/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
225 words
A device for heating a thermoplastic eyeglass frame including a rim and bridge portion and temple portion comprising a housing, infrared heat radiating means on said housing, means on said housing for supporting one of said eyeglass frame portions in a stationary manner in spaced relationship to said radiating means at the optimum position to receive radiant heat therefrom and supporting the other of said eyeglass frame portions out of the range of said radiating means, and control means for preventing said heat radiating means from exceeding a predetermined temperature which could heat said eyeglass frame portion being heated beyond a predetermined degree, said infrared heat radiating means comprising a pair of spaced infrared heat radiating surfaces defining a channel therebetween for receiving one of said eyeglass frame portions, whereby said one of said eyeglass frame portions is subjected to radiated heat from opposite sides thereof, said channel being further open at opposite ends thereof, said infrared heat radiating means comprising a heating block, an electrical heating element embedded in said block for heating said block uniformly throughout, and wherein said spaced infrared heat radiating surfaces are formed on said block in spaced relationship to the portion thereof in which said heating element is embedded, whereby said portion of said eyeglass frame in said channel is not subjected to direct heat from said heating element.
Claim 2
Independent Claim
225 words
A device for heating a thermoplastic eyeglass frame including a rim and bridge portion and temple portion comprising a housing, infrared heat radiating means on said housing, means on said housing for supporting one of said eyeglass frame portions in a stationary manner in spaced relationship to said radiating means at the optimum position to receive radiant heat therefrom and supporting the other of said eyeglass frame portions out of the range of said radiating means, and control means for preventing said heat radiating means from exceeding a predetermined temperature which could heat said eyeglass frame portion being heated beyond a predetermined degree, said infrared heat radiating means comprising a pair of spaced infrared heat radiating surfaces defining a channel therebetween for receiving one of said eyeglass frame portions, whereby said one of said eyeglass frame portions is subjected to radiated heat from opposite sides thereof, said channel being further open at opposite ends thereof, said infrared heat radiating means comprising a heating block, an electrical heating element embedded in said block for heating said block uniformly throughout, and wherein said spaced infrared heat radiating surfaces are formed on said block in spaced relationship to the portion thereof in which said heating element is embedded, whereby said portion of said eyeglass frame in said channel is not subjected to direct heat from said heating element.
Claim 3
Dependent Claim
34 words
A device as set forth in claim 1 wherein said radiating surfaces have a configuration adapted to concentrate radiation from said surfaces in a pattern approximating the shape of certain portions of said frame.
Claim 4
Dependent Claim
48 words
A device as set forth in claim 1 including aperture means in said block extending through said heat radiating surfaces, and air moving means in said housing for forcing air through said aperture means in said heat radiating surfaces toward said portion of said eyeglass frame spaced therefrom.
Claim 5
Independent Claim
247 words
A device for heating a thermoplastic eyeglass frame including a rim and bridge portion and temple portion comprising a housing, infrared heat radiating means on said housing, means for supporting one of said eyeglass frame portions on said housing in spaced relationship to said radiating means to receive radiant heat therefrom while permitting the other of said eyeglass frame portions to remain out of the range of said radiating means, and control means for preventing said heat radiating means from exceeding a predetermined temperature which could heat said eyeglass frame portion being heated beyond a predetermined degree, said infrared heat radiating means comprising a pair of spaced infrared heat radiating surfaces with a channel therebetween for receiving one of said eyeglass frame portions, whereby said one of said eyeglass frame portions is subjected to radiated heat from opposite sides thereof, said infrared heat radiating means comprising a heating block, an electrical heating element embedded in said block for heating said block, and wherein said spaced infrared heat radiating surfaces are formed on said block in spaced relationship to the portion thereof in which said heating element is embedded, whereby said Portion of said eyeglass frame in said channel is not subjected to direct heat from said heating element, aperture means in said block extending through said heat radiating surfaces, and air moving means in said housing for forcing air through said aperture means in said heat radiating surface toward said portion of said eyeglass frame spaced therefrom.
Claim 6
Independent Claim
247 words
A device for heating a thermoplastic eyeglass frame including a rim and bridge portion and temple portion comprising a housing, infrared heat radiating means on said housing, means for supporting one of said eyeglass frame portions on said housing in spaced relationship to said radiating means to receive radiant heat therefrom while permitting the other of said eyeglass frame portions to remain out of the range of said radiating means, and control means for preventing said heat radiating means from exceeding a predetermined temperature which could heat said eyeglass frame portion being heated beyond a predetermined degree, said infrared heat radiating means comprising a pair of spaced infrared heat radiating surfaces with a channel therebetween for receiving one of said eyeglass frame portions, whereby said one of said eyeglass frame portions is subjected to radiated heat from opposite sides thereof, said infrared heat radiating means comprising a heating block, an electrical heating element embedded in said block for heating said block, and wherein said spaced infrared heat radiating surfaces are formed on said block in spaced relationship to the portion thereof in which said heating element is embedded, whereby said Portion of said eyeglass frame in said channel is not subjected to direct heat from said heating element, aperture means in said block extending through said heat radiating surfaces, and air moving means in said housing for forcing air through said aperture means in said heat radiating surface toward said portion of said eyeglass frame spaced therefrom.
Claim 7
Independent Claim
186 words
A device for heating a thermoplastic eyeglass frame including a rim and bridge portion and temple portion comprising a housing, infrared heat radiating means on said housing, means for supporting one of said eyeglass frame portions on said housing in spaced relationship to said radiating means to receive radiant heat therefrom while permitting the other of said eyeglass frame portions to remain out of the range of said radiating means, and control means for preventing said heat radiating means from exceeding a predetermined temperature which could heat said eyeglass frame portion being heated beyond a predetermined degree, said infrared heat radiating means comprising a heating block, an electrical heating element for heating said block, heat radiating surface means on said block in spaced relationship to said heating element, whereby said portion of said eyeglass frame is not subjected to direct heat from said heating element, aperture means in said block extending through said heat radiating surface means, and air moving means in said housing for forcing air through said aperture means in said heat radiating surface means toward said portion of said eyeglass frame spaced therefrom.
Claim 8
Independent Claim
186 words
A device for heating a thermoplastic eyeglass frame including a rim and bridge portion and temple portion comprising a housing, infrared heat radiating means on said housing, means for supporting one of said eyeglass frame portions on said housing in spaced relationship to said radiating means to receive radiant heat therefrom while permitting the other of said eyeglass frame portions to remain out of the range of said radiating means, and control means for preventing said heat radiating means from exceeding a predetermined temperature which could heat said eyeglass frame portion being heated beyond a predetermined degree, said infrared heat radiating means comprising a heating block, an electrical heating element for heating said block, heat radiating surface means on said block in spaced relationship to said heating element, whereby said portion of said eyeglass frame is not subjected to direct heat from said heating element, aperture means in said block extending through said heat radiating surface means, and air moving means in said housing for forcing air through said aperture means in said heat radiating surface means toward said portion of said eyeglass frame spaced therefrom.
Claim 9
Dependent Claim
120 words
A device as set forth in claim 5 wherein said housing includes a stove within said housing and wherein said block is mounted within said stove, and wherein said air moving means is mounted outside of said stove within said housing, second aperture means in said stove for receiving air which is moved by said air moving means whereby said stove conducts said air through said aperture means in said block, and third aperture means in said housing for conducting air moved by said fan out of said housing without causing it to pass through said stove, whereby said air emanating from said third aperture means can be used to cool a portion of said eyeglass frame held adjacent thereto.
Claim 10
Dependent Claim
40 words
A device as set forth in claim 5 including a space between said block and said housing, and wherein said air moving means passes cool air through said space to limit the amount said block heats said housing adjacent thereto.
Claim 11
Dependent Claim
40 words
A device as set forth in claim 5 wherein said heat radiating surface means includes a radiating surface having a configuration adapted to concentrate radiation from said surface in a pattern approximating the shape of certain portions of said frame.
Claim 12
Dependent Claim
53 words
A device as set forth in claim 5 wherein said infrared heat radiating surface means comprises a pair of spaced infrared heat radiating surfaces defining a channel therebetween for receiving one of said eyeglass frame portions, whereby said one of said eyeglass frame portions is subjected to radiated heat from opposite sides thereof.
Claim 13
Dependent Claim
34 words
A device as set forth in claim 9 wherein said heat radiating surfaces have configuration adapted to concentrate radiation from said surfaces in a pattern approximately the shape of certain portions of said frame.
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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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |