US2536201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermochemical metal removal method and apparatus
Assignee: Linde Air Products Co
•
Filing: 1946-04-19
•
Granted: 1951-01-02
•
Expires: 1966-04-19
Abstract
No abstract record available.
Inventors
- 👤 Meincke Edward
- 👤 Villoresi John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:34
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/08; Y; Y10; Y10S; Y10S266/00; Y10S266/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A METHOD FOR PROGRESSIVELY THERMOCHEMICALLY REMOVING METAL FROM A METAL BODY BY THE CONJOINT ACTION OF A METAL-REMOVING OXYGEN JET, A PREHEATING FLAME, AND A STREAM OF BURNING COMBUSTIBLE METALLIC ADJUVANT POWDER ADVANCING ALONG AND IMPINGING AGAINST THE SURFACE THEREOF, THE IMPROVEMENT WHICH COMPRISES: SEPARATELY BUT CONCURRENTLY DISCHARGING INTO FREE SPACE ADJACENT THE SURFACE OF SAID BODY AND THENCE AGAINST SAID BODY A CENTRAL METAL-REMOVING OXYGEN JET; A FIRST RING COMPRISING ONE OR MORE AIR STREAMS LADEN WITH SUCH ADJUVANT POWDER SURROUNDING AND ALONGSIDE SAID OXYGEN JET; AND A SECOND RING COMPRISING A PREHEATING COMBUSTIBLE GAS MIXTURE UNBURDENED WITH POWDER SURROUNDING AND ALONGSIDE SAID FIRST RING, SAID MIXTURE BURNING TO FORM A PREHEATING FLAME FOR HEATING SUCH POWDER RAPIDLY TO THE IGNITION TEMPERATURE THEREOF AND FOR HEATING SAID BODY.
Claim 2
Dependent Claim
130 words
IN A METHOD FOR PROGRESSIVELY THERMOCHEMICALLY REMOVING METAL FROM A METAL BODY BY THE CONJOINT ACTION OF A METAL-REMOVING OXYGEN JET, A PREHEATING FLAME, AND A STREAM OF BURNING COMBUSTIBLE METALLIC ADJUVANT POWDER ADVANCING ALONG AND IMPINGING AGAINST THE SURFACE THEREOF, THE IMPROVEMENT WHICH COMPRISES: SEPARATELY BUT CONCURRENTLY DISCHARGING INTO FREE SPACE ADJACENT THE SURFACE OF SAID BODY AND THENCE AGAINST SAID BODY A CENTRAL METAL-REMOVING OXYGEN JET; A FIRST RING COMPRISING ONE OR MORE AIR STREAMS LADEN WITH SUCH ADJUVANT POWDER SURROUNDING AND ALONGSIDE SAID OXYGEN JET; AND A SECOND RING COMPRISING A PREHEATING COMBUSTIBLE GAS MIXTURE UNBURDENED WITH POWDER SURROUNDING AND ALONGSIDE SAID FIRST RING, SAID MIXTURE BURNING TO FORM A PREHEATING FLAME FOR HEATING SUCH POWDER RAPIDLY TO THE IGNITION TEMPERATURE THEREOF AND FOR HEATING SAID BODY.
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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) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |