US3590201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric control systems for brazing tools
Assignee: Eaton Aeroquip LLC
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Filing: 1969-05-14
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Granted: 1971-06-29
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Expires: 1989-05-14
Abstract
Abstract A temperature-sensing system which is particularly adapted to be utilized in conjunction with a brazing operation wherein the temperature at the point of brazing is sensed and the brazing operation is controlled in response to the sensed temperature, the temperature being sensed by means of a fiberoptic or a solid light pipe. The light being transmitted through the fiberoptic pipe is then translated through a transducer in the form of a photoelectric device to change the light signal to an electrical signal. The intensity of the electrical signal is then sensed to control the termination of the brazing cycle.
Inventors
- 👤 Charles B Basinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:23
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/20; B; B23; B23K; B23K3/00; B23K3/04; B23K3/047; B23K3/08; G01J5/02; G01J5/08; G01J5/0818
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
154 words
In combination, a brazing tool for applying heat to telescoped ends of tubing to effect a brazed connection therebetween, said tool comprising first and second sections movable relative to each other from open to closed positions and adapted in said closed position to surround the ends of the tubes to be brazed, heating means carried within the adjacent ends of said sections wherein a brazing chamber is formed by said ends in said closed position, there being a passage in said end of said first section extending from said chamber outwardly of said end, power means connected to said tool and operable to energize said heating means, cycle control means carried by said first section and having a sensing end extending through said passage into said chamber, and means interconnecting said control means and said power means operable to shut off said power means in response to a predetermined condition of said sensing end.
Claim 2
Dependent Claim
154 words
In combination, a brazing tool for applying heat to telescoped ends of tubing to effect a brazed connection therebetween, said tool comprising first and second sections movable relative to each other from open to closed positions and adapted in said closed position to surround the ends of the tubes to be brazed, heating means carried within the adjacent ends of said sections wherein a brazing chamber is formed by said ends in said closed position, there being a passage in said end of said first section extending from said chamber outwardly of said end, power means connected to said tool and operable to energize said heating means, cycle control means carried by said first section and having a sensing end extending through said passage into said chamber, and means interconnecting said control means and said power means operable to shut off said power means in response to a predetermined condition of said sensing end.
Claim 3
Dependent Claim
24 words
The subject matter of claim 1 wherein said control means senses light changes in said chamber during brazing in response to changes in temperatures.
Claim 4
Dependent Claim
44 words
The subject matter of claim 1 wherein said control means includes a light pipe and transducer means positioned adjacent thereto, said light pipe transmitting light signals from said chamber to said transducer means and said transducer means changing said light signals to electrical signals.
Claim 5
Dependent Claim
21 words
The subject matter of claim 3 wherein said first section is provided with an enclosure surrounding and encasing said control means.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |