US3619429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the uniform extrusion coating of welding flux compositions
Assignee: Yawata Welding Electrode Co Ltd
•
Filing: 1969-06-04
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Granted: 1971-11-09
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Expires: 1989-06-04
Abstract
Abstract A method and apparatus are provided for the uniform extrusion coating of flux mixtures on welding rod or wire, in which a sonic or ultrasonic wave vibration at a frequency from about 5,000 to about 400,000 c.p.s. is applied to the flux mixture to maintain its uniformity, and thereby prevent the obstruction to the smooth extrusion coating of the welding flux mixture as the flux mixture is fed under pressure to the extrusion nozzle.
Inventors
- 👤 Yasuo Torigai
- 👤 Keizo Ishizaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:16
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/40; B23K35/404; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2951
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
27 words
A method according to claim 1 in which sonic vibration having a frequency range of approximately 5,000 to 400,000 c.p.s. is applIed to the welding flux composition.
Claim 2
Dependent Claim
27 words
A method according to claim 1 in which ultrasonic vibration having a frequency range of approximately 10,000 to 400,000 c.p.s. is applied to the welding flux composition.
Claim 3
Dependent Claim
34 words
A method according to claim 1 in which the vibration is applied to a flow guide member adjacent to the extrusion nozzle which in turn imparts the vibration to the particles of flux composition.
Claim 4
Dependent Claim
37 words
A method according to claim 1 in which the vibration is imparted directly to the welding composition by the means creating the sonic or ultrasonic vibrations to ensure that vibrational energy is imparted to all flux particles.
Claim 5
Dependent Claim
29 words
A method according to claim 4 in which the vibration is imparted to the flow guide member in a direction which is parallel with the direction of flux flow.
Claim 6
Dependent Claim
28 words
A method according to claim 4 in which the vibration is imparted to the flow guide in a direction which is perpendicular to the direction of flux flow.
Claim 7
Dependent Claim
32 words
A method according to claim 1 in which the vibration is imparted directly to the welding flux composition in a direction which is oblique with respect to the direction of flux flow.
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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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |