US3898415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weld flux apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1974-05-15
•
Granted: 1975-08-05
•
Expires: 1994-05-15
Abstract
Abstract An improvement in the recovery and reutilization of spent flux including apparatus for properly mixing continuous feeds of recovered and fresh fluxes and for conveying the reconstituted flux to the welding zone.
Inventors
- 👤 Acremont Bernard D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:54
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/32; B23K9/324
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
A welding apparatus for use on a workpiece, electrode means for producing a welding zone on the workpiece, means for depositing flux on the welding zone, and suction means for removing spent flux from the workpiece, the improvement comprising separator means for recovering a reusable fraction of the spent flux, a first and second gravity feed means, the first feed means delivering reusable flux recovered by the separator means, and the second feed means delivering fresh flux, electric heater means disposed in each of said feed means for drying the flux passing therethrough, adjustable gate means for regulating each of said feed means, and vibrator means for receiving said regulated feed of fresh and reusable fluxes, said vibrator means combining the fresh and reusable fluxes to form a reconstituted flux, and machine transport means for conveying the reconstituted flux to said depositing means, said transport means including a screw conveyor.
Claim 2
Dependent Claim
150 words
A welding apparatus for use on a workpiece, electrode means for producing a welding zone on the workpiece, means for depositing flux on the welding zone, and suction means for removing spent flux from the workpiece, the improvement comprising separator means for recovering a reusable fraction of the spent flux, a first and second gravity feed means, the first feed means delivering reusable flux recovered by the separator means, and the second feed means delivering fresh flux, electric heater means disposed in each of said feed means for drying the flux passing therethrough, adjustable gate means for regulating each of said feed means, and vibrator means for receiving said regulated feed of fresh and reusable fluxes, said vibrator means combining the fresh and reusable fluxes to form a reconstituted flux, and machine transport means for conveying the reconstituted flux to said depositing means, said transport means including a screw conveyor.
Claim 3
Dependent Claim
36 words
The welding apparatus according to claim 1 wherein the transport means includes an electrically heated hopper for receiving flux from said screw conveyor, the hopper having flux level sensing means for regulating the flux discharge therefrom.
Claim 4
Dependent Claim
31 words
The welding apparatus according to claim 2 including a vibrating plate conveyor interposed between the hopper And depositing means, said plate conveyor being sloped in the direction of the depositing means.
Claim 5
Dependent Claim
36 words
The welding apparatus according to claim 1 wherein said first and second gravity feed means are in the form of separate hoppers, each of said hoppers having structure defining an outlet discharging to said vibrator means.
Claim 6
Dependent Claim
24 words
The welding apparatus according to claim 1 wherein the transport means includes an electrically heated hopper interposed between said vibrator and screw conveyor 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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |