US3811030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated stylus for transferring a printing medium
Assignee: Individual
•
Filing: 1971-11-15
•
Granted: 1974-05-14
•
Expires: 1991-11-15
Abstract
Abstract A hand manipulated electrically heated stylus tool for transferring insignia to an article from a ribbon or sheet having a coating on one face thereof subject to release and transfer to an article to be printed operates on a 115 volt power supply without use of a voltage reducing transformer or temperature control means. The tool includes an aluminum stylus having a first portion enclosed in a low thermal conductivity support carried at the end of a handle and a second portion projecting from the support to terminate in a work contacting tip. The entire outer surface of the stylus is anodized to form a hard wear resistant electrically insulative layer thereon. A heating element formed from electrically insulated resistance wire is coiled about the first portion of the stylus with the insulation thereon abutting the anodized layer. The arrangement is such that the anodized layer acts as a back-up insulation between the heating element and stylus to prevent short circuiting of the heating element should the insulation on the resistance wire fail. Additionally, in the further event of the breakdown of the anodized layer about the first portion of the stylus, the operator is protected by reason of the electrical insulation afforded by the intact anodized layer covering the exposed second portion of the stylus.
Inventors
- 👤 C Veach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:38
CPC Classifications
B; B43; B43K; B43K8/00; B43K8/22; H; H05; H05B; H05B3/00; H05B3/10; H05B3/16; H05B2203/00; H05B2203/03
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
340 words
A device for transferring a printing medium, forming a coating on one face of a sheet of material, and subject to release therefrom upon movement of a heated stylus along the opposite face of the sheet in a desired path, while the medium is in contact with an article to be printed, comprising; a. a hollow handle adapted to be grasped in the hand of an operator for freehand movement in a path corresponding to the configuration of insignia to be printed, b. Said handle having a stylus supporting member at one end thereof formed of electrical insulating material of relatively low heat conductivity, c. an aluminum stylus having a first portion disposed within said member and a second portion projecting therefrom, terminating in a free end adapted to be moved along said opposite face, d. said stylus having an anodized coating thereon and coextensive therewith, said coating being relatively hard to thereby resist wear on said free end and also forming an insulator layer around the stylus, e. a continuous insulated wire of relatively high electrical resistance wound around said first portion in a plurality of abutting coils, the insulation on the coils also abutting the anodized coating, said coils forming a heating element for supplying heat to the stylus through the anodized coating, and f. electrical conductors within said handle connecting ends of the heating element with an electrical source, g. the construction and arrangement being such that adjacent coils are electrically insulated from each other by at least two thicknesses of wire insulation and each coil is electrically insulated from the stylus by its surrounding insulation and by the anodized coating whereby in the event of breakdown of the insulation surrounding the coils they remain insulated from the stylus because of said anodized coating, and in the further event of breakdown of the anodized coating on said first portion, producing a short circuit between coils through the stylus, the projecting second portion of the stylus remains electrically insulated from the operator because of the anodized coating thereon.
Claim 2
Independent Claim
340 words
A device for transferring a printing medium, forming a coating on one face of a sheet of material, and subject to release therefrom upon movement of a heated stylus along the opposite face of the sheet in a desired path, while the medium is in contact with an article to be printed, comprising; a. a hollow handle adapted to be grasped in the hand of an operator for freehand movement in a path corresponding to the configuration of insignia to be printed, b. Said handle having a stylus supporting member at one end thereof formed of electrical insulating material of relatively low heat conductivity, c. an aluminum stylus having a first portion disposed within said member and a second portion projecting therefrom, terminating in a free end adapted to be moved along said opposite face, d. said stylus having an anodized coating thereon and coextensive therewith, said coating being relatively hard to thereby resist wear on said free end and also forming an insulator layer around the stylus, e. a continuous insulated wire of relatively high electrical resistance wound around said first portion in a plurality of abutting coils, the insulation on the coils also abutting the anodized coating, said coils forming a heating element for supplying heat to the stylus through the anodized coating, and f. electrical conductors within said handle connecting ends of the heating element with an electrical source, g. the construction and arrangement being such that adjacent coils are electrically insulated from each other by at least two thicknesses of wire insulation and each coil is electrically insulated from the stylus by its surrounding insulation and by the anodized coating whereby in the event of breakdown of the insulation surrounding the coils they remain insulated from the stylus because of said anodized coating, and in the further event of breakdown of the anodized coating on said first portion, producing a short circuit between coils through the stylus, the projecting second portion of the stylus remains electrically insulated from the operator because of the anodized coating thereon.
Claim 3
Dependent Claim
29 words
A device in accordance with claim 1 wherein said heating element is of such resistance to provide heat to maintain said free end between approximately 200* to 400* fahrenheit.
Claim 4
Dependent Claim
42 words
A device in accordance with claim 1 wherein said stylus and heating coil are potted in said supporting member, the material of said supporting member being a mixture of ceramic and liquid resin subject to hardening after being cast to desired shape.
Claim 5
Dependent Claim
37 words
A device in accordance with claim 3 wherein said supporting member is generally frusto-conical and said stylus is disposed axially thereof, whereby the maximum radial temperature gradient across said member is at the smallest cross section thereof.
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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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |