US3201292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing welding powders
Assignee: Wacker Chemie AG
•
Filing: 1962-03-20
•
Granted: 1965-08-17
•
Expires: 1982-03-20
Abstract
No abstract record available.
Inventors
- 👤 Mlltschitzky Gustav
- 👤 Schindelin Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:34
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/362; B23K35/02; B23K35/0255
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
PROCESS FOR PRODUCING WELDING POWDERS WITH SMALL POWDER DENSITIES (KG./LITER) FROM KNOWN BASIC WELDING MATERIALS WHICH HAVE CUSTOMARY HIGHER POWDER DENSITIES AND WHICH CONSIST ESSENTIALLY OF THE FOLLOWING SUBSTANCES IN THE FOLLOWING PROPORTIONS BY WEIGHT: 30-55% SIO2, 1-15% AL2O3, UP TO 15% TIO2, 1-35% CAO, 0.5-25% MGO, UP TO 10% CAF2, UP TO 10% MNO, UP 2% FE2O3; WHICH COMPRISES COMPOUNDING SAID BASIC WELDING MATERIAL IN THE FORM OF FOAM-LIKE GRANULES, AND THEN COATING SAID GRANULES WITH AN OUTER ENVELOPE CONSISTING OF THE FOREGOING SUBSTANCES IN THE FOREGOING PROPORTIONS.
Claim 2
Dependent Claim
89 words
PROCESS FOR PRODUCING WELDING POWDERS WITH SMALL POWDER DENSITIES (KG./LITER) FROM KNOWN BASIC WELDING MATERIALS WHICH HAVE CUSTOMARY HIGHER POWDER DENSITIES AND WHICH CONSIST ESSENTIALLY OF THE FOLLOWING SUBSTANCES IN THE FOLLOWING PROPORTIONS BY WEIGHT: 30-55% SIO2, 1-15% AL2O3, UP TO 15% TIO2, 1-35% CAO, 0.5-25% MGO, UP TO 10% CAF2, UP TO 10% MNO, UP 2% FE2O3; WHICH COMPRISES COMPOUNDING SAID BASIC WELDING MATERIAL IN THE FORM OF FOAM-LIKE GRANULES, AND THEN COATING SAID GRANULES WITH AN OUTER ENVELOPE CONSISTING OF THE FOREGOING SUBSTANCES IN THE FOREGOING PROPORTIONS.
References Cited (Backward Citations)
CA524020A
Cited
US2443103A
Cited
US2474787A
Cited
US2662840A
Cited
US2720473A
Cited
US3023133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |