US2776230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for quenching pipe
Assignee: United States Steel Corp
•
Filing: 1951-10-22
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Granted: 1957-01-01
•
Expires: 1971-10-22
Abstract
No abstract record available.
Inventors
- 👤 James A Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:17
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/02; B05B13/0207; B05B13/0214; C; C21; C21D; C21D1/00; C21D1/62; C21D1/667; C21D9/00; C21D9/08; C21D9/085; B05B13/0278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD OF QUENCHING STEEL PIPE HEATED ABOVE THE TRANSFORMATION TEMPERATURE, CONSISTING IN MOVING THE PIPE AXIALLY ALONG A STRAIGHT LINE, DISCHARGING ONTO THE PIPE FROM POINTS SPACED SUBSTANTIALLY EQUALLY APART IN A PLANE NORMAL TO SAID LINE AND SUBSTANTIALLY EQUALLY SPACED RADIALLY FROM SAID LINE, DIVERGING SPRAYS OF LIQUID THE AXES OF WHICH SPRAYS CONSTITUTE ELEMENTS OF AN IMAGINARY CONE HAVING ITS APEX IN SAID LINE, MAINTAINING THE SPACING OF SAID POINTS FROM SAID APEX SUCH THAT SUBSTANTIALLY ALL THE LIQUID BREAKS INTO SUBSTANTIALLY UNIFORMLY DISPERSED DROPLETS BEFORE IMPINGING ON THE PIPE, MAINTAINING THE SPACING BETWEEN SAID POINTS SUCH AS TO CAUSE PARTIAL OVERLAPPING OF THE AREAS OF IMPINGEMENT ON THE PIPE OF DROPLETS FROM ADJACENT POINTS, AND MAINTAINING THE APEX ANGLE OF SAID CONE SUCH THAT THE MAXIMUM ANGLE BETWEEN SAID LINE AND ANY ELEMENT OF SAID SPRAYS IS FROM 60* TO 80*, THEREBY
Claim 2
Independent Claim
146 words
A METHOD OF QUENCHING STEEL PIPE HEATED ABOVE THE TRANSFORMATION TEMPERATURE, CONSISTING IN MOVING THE PIPE AXIALLY ALONG A STRAIGHT LINE, DISCHARGING ONTO THE PIPE FROM POINTS SPACED SUBSTANTIALLY EQUALLY APART IN A PLANE NORMAL TO SAID LINE AND SUBSTANTIALLY EQUALLY SPACED RADIALLY FROM SAID LINE, DIVERGING SPRAYS OF LIQUID THE AXES OF WHICH SPRAYS CONSTITUTE ELEMENTS OF AN IMAGINARY CONE HAVING ITS APEX IN SAID LINE, MAINTAINING THE SPACING OF SAID POINTS FROM SAID APEX SUCH THAT SUBSTANTIALLY ALL THE LIQUID BREAKS INTO SUBSTANTIALLY UNIFORMLY DISPERSED DROPLETS BEFORE IMPINGING ON THE PIPE, MAINTAINING THE SPACING BETWEEN SAID POINTS SUCH AS TO CAUSE PARTIAL OVERLAPPING OF THE AREAS OF IMPINGEMENT ON THE PIPE OF DROPLETS FROM ADJACENT POINTS, AND MAINTAINING THE APEX ANGLE OF SAID CONE SUCH THAT THE MAXIMUM ANGLE BETWEEN SAID LINE AND ANY ELEMENT OF SAID SPRAYS IS FROM 60* TO 80*, THEREBY
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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) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |