Patent US3321575A successfully refreshed from Google Patents.
US3192618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of repairing aircraft cylinder heads
Assignee: Individual
•
Filing: 1964-02-18
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Granted: 1965-07-06
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Expires: 1984-02-18
Abstract
No abstract record available.
Inventors
- 👤 George A Altgelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:30
CPC Classifications
B; B23; B23P; B23P6/00; B23P6/04; B23K; B23K9/00; B23K9/23; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/4927; Y10T29/49718; Y10T29/49748; Y10T29/4975; Y10T29/49764; Y10T29/49771
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A METHOD OF REPAIRING DAMAGED ALUMINUM CYLINDER HEADS COMPRISING THE STEPS OF CLEANING THE CYLINDER HEAD BOTH INTERNALLY AND EXTERNALLY, BLASTING THE CYLINDER HEAD BOTH INTERNALLY AND EXTERNALLY WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SAND, WALNUT HULLS AND GLASS BEADS, PREHEATING THE CYLINDER HEADS TO 175*-200* FAHRENHEIT, INSPECTING THE CYLINDER HEAD INTERNALLY AND EXTERNALLY TO DETERMINE THE LOCATION OF DAMAGE, REMOVING ALL MATERIAL BOUNDING THE DAMAGED PORTIONS OF THE CYLINDER HEAD, HEATING THE CYLINDER TO 600*-650* FAHRENHEIT, HEATING THE PORTION OF THE CYLINDER HEAD WHERE THE DAMAGE OCCURS UNTIL SAID PORTION BEGINS TO BECOME FLUID, WELDING THE DAMAGED PORTIONS UTILIZING AN INERT GAS AND A FILLER ROD CONTAINING THE SAME BASIC COMPOSITION AS THE COMPOSITION OF THE CYLINDER HEAD, ALLOWING THE CYLINDER HEAD TO SLOWLY RETURN TO AMBIENT TEMPERATURE, REWORKING THE REPAIRED PORTIONS TO RETURN THE CYLINDER HEAD TO ITS ORIGINAL CONFIGURATION, HEATING THE CYLINDER HEAD TO 175*-200* FAHRENHEIT AND INSPECTING THE CYLINDER HEAD, HEAT SOAKING THE CYLINDER HEAD AT APPROXIMATELY 550* FAHRENHEIT FOR APPROXIMATELY 45 MINUTES, ALLOWING THE CYLINDER HEAD TO SLOWLY RETURN TO AMBIENT TEMPERATURE, INSPECTING THE CYLINDER HEAD, AND CHROME PLATING THE CYLINDER BARREL,
Claim 2
Independent Claim
190 words
A METHOD OF REPAIRING DAMAGED ALUMINUM CYLINDER HEADS COMPRISING THE STEPS OF CLEANING THE CYLINDER HEAD BOTH INTERNALLY AND EXTERNALLY, BLASTING THE CYLINDER HEAD BOTH INTERNALLY AND EXTERNALLY WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SAND, WALNUT HULLS AND GLASS BEADS, PREHEATING THE CYLINDER HEADS TO 175*-200* FAHRENHEIT, INSPECTING THE CYLINDER HEAD INTERNALLY AND EXTERNALLY TO DETERMINE THE LOCATION OF DAMAGE, REMOVING ALL MATERIAL BOUNDING THE DAMAGED PORTIONS OF THE CYLINDER HEAD, HEATING THE CYLINDER TO 600*-650* FAHRENHEIT, HEATING THE PORTION OF THE CYLINDER HEAD WHERE THE DAMAGE OCCURS UNTIL SAID PORTION BEGINS TO BECOME FLUID, WELDING THE DAMAGED PORTIONS UTILIZING AN INERT GAS AND A FILLER ROD CONTAINING THE SAME BASIC COMPOSITION AS THE COMPOSITION OF THE CYLINDER HEAD, ALLOWING THE CYLINDER HEAD TO SLOWLY RETURN TO AMBIENT TEMPERATURE, REWORKING THE REPAIRED PORTIONS TO RETURN THE CYLINDER HEAD TO ITS ORIGINAL CONFIGURATION, HEATING THE CYLINDER HEAD TO 175*-200* FAHRENHEIT AND INSPECTING THE CYLINDER HEAD, HEAT SOAKING THE CYLINDER HEAD AT APPROXIMATELY 550* FAHRENHEIT FOR APPROXIMATELY 45 MINUTES, ALLOWING THE CYLINDER HEAD TO SLOWLY RETURN TO AMBIENT TEMPERATURE, INSPECTING THE CYLINDER HEAD, AND CHROME PLATING THE CYLINDER BARREL,
References Cited (Backward Citations)
US2632944A
Cited
US2751671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |