US2687975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of luting threads
Assignee: Bastian Blessing Co
•
Filing: 1949-03-15
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Granted: 1954-08-31
•
Expires: 1969-03-15
Abstract
No abstract record available.
Inventors
- 👤 Skurka Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:03
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/26; B23K35/262; Y; Y10; Y10S; Y10S411/00; Y10S411/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A PROCESS FOR PRELUTING THREADS ON AN ARTICLE FORMED OF BRASS INCLUDING ROTATING THE ARTICLE ABOUT A VERTICAL AXIS, HEATING THE THREADED PORTION OF THE ARTICLE TO A TEMPERATURE OF APPROXIMATELY 425* F., SPRAYING A LIQUID FLUX COMPRISING AN AQUEOUS SOLUTION OF A CHLORIDE AND GLYCERINE ON THE HEATED THREAD, MOVING A WIRE OF SOFT SOLDER HAVING A TIN CONTENT OF APPROXIMATELY 55 PERCENT INTO CONTACT WITH THE THREAD AT THE LOWERMOST POINT OF THE LUTED AREA WHILE THE THREAD IS ROTATING, THE SOLDER WIRE BEING MOVED IN AN AXIAL DIRECTION ALONG THE THREAD TO INCREASE THE LUTED AREA TO FOLLOW THE THREAD, AND SIMULTANEOUSLY PLAYING A GAS FLAME ON THE SOLDER AND THEARD TO PUDDLE, THE SOLDER AND CAUSE SAME TO FILL THE ROOT OF THE THREAD AND BECOME HOMOGENOUSLY BONDED TO THE BRASS AND THIN OUT TOWARD THE CREST OF THE THREAD BY THE CAPILLARY ACTION OF THE HEATED DIVERGING SIDE WALLS OF THE THREAD GROOVE.
Claim 2
Dependent Claim
158 words
A PROCESS FOR PRELUTING THREADS ON AN ARTICLE FORMED OF BRASS INCLUDING ROTATING THE ARTICLE ABOUT A VERTICAL AXIS, HEATING THE THREADED PORTION OF THE ARTICLE TO A TEMPERATURE OF APPROXIMATELY 425* F., SPRAYING A LIQUID FLUX COMPRISING AN AQUEOUS SOLUTION OF A CHLORIDE AND GLYCERINE ON THE HEATED THREAD, MOVING A WIRE OF SOFT SOLDER HAVING A TIN CONTENT OF APPROXIMATELY 55 PERCENT INTO CONTACT WITH THE THREAD AT THE LOWERMOST POINT OF THE LUTED AREA WHILE THE THREAD IS ROTATING, THE SOLDER WIRE BEING MOVED IN AN AXIAL DIRECTION ALONG THE THREAD TO INCREASE THE LUTED AREA TO FOLLOW THE THREAD, AND SIMULTANEOUSLY PLAYING A GAS FLAME ON THE SOLDER AND THEARD TO PUDDLE, THE SOLDER AND CAUSE SAME TO FILL THE ROOT OF THE THREAD AND BECOME HOMOGENOUSLY BONDED TO THE BRASS AND THIN OUT TOWARD THE CREST OF THE THREAD BY THE CAPILLARY ACTION OF THE HEATED DIVERGING SIDE WALLS OF THE THREAD GROOVE.
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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) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |