US3342564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite castings
Assignee: MARTIN METALS CO
•
Filing: 1965-01-22
•
Granted: 1967-09-19
•
Expires: 1985-01-22
Abstract
No abstract record available.
Inventors
- 👤 Charles W Schwartz
- 👤 Harold L Wheaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:59
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A STRUCTURAL MEMBER FOR USE AT ELEVATED TEMPERATURES COMPRISING A PREFORMED METALLIC BASE, A CAST METALLIC PORTION OF AT LEAST ABOUT 0.08" THICKNESS AND A TRANSITION ZONE WHICH IS AN INTERALLOY OF INTERMEDIATE COMPOSITIONAL MAKEUP CONSISTING ESSENTIALLY OF A SOLID SOLUTION MATRIX OF METALLIC ELEMENTS TOGETHER WITH DISPERSED SECOND PHASE PARTICLES, SAID ELEMENTS TOGETHER WITH DISPERSED SECOND PHASE PARTICLES, SAID ELEMENTS OF THE MATRIX AND DISPERSED METALLIC PORTION, SAID TRANSITION ZONE BEING IN THE SOLID STATE AND BEING PRODUCED DURING FORMATION OF SAID STRUCTURAL MEMBER BY THE CONTACTED PORTION OF SAID PREFORMED METAL BASE BEING TAKEN INTO LIQUID SOLUTION UPON CONTACT WITH CAST METAL POURED, UNDER PROTECTIVE ATMOSPHERE, AT A TEMPERATURE IN THE RANGE BETWEEN ABOUT 2450* F. AND 3000*F. AND UNDER CONDITIONS PROVIDING A SOLIDIFICATION GRADIENT OF 200*F. TO 1200*F.
Claim 2
Dependent Claim
131 words
A STRUCTURAL MEMBER FOR USE AT ELEVATED TEMPERATURES COMPRISING A PREFORMED METALLIC BASE, A CAST METALLIC PORTION OF AT LEAST ABOUT 0.08" THICKNESS AND A TRANSITION ZONE WHICH IS AN INTERALLOY OF INTERMEDIATE COMPOSITIONAL MAKEUP CONSISTING ESSENTIALLY OF A SOLID SOLUTION MATRIX OF METALLIC ELEMENTS TOGETHER WITH DISPERSED SECOND PHASE PARTICLES, SAID ELEMENTS TOGETHER WITH DISPERSED SECOND PHASE PARTICLES, SAID ELEMENTS OF THE MATRIX AND DISPERSED METALLIC PORTION, SAID TRANSITION ZONE BEING IN THE SOLID STATE AND BEING PRODUCED DURING FORMATION OF SAID STRUCTURAL MEMBER BY THE CONTACTED PORTION OF SAID PREFORMED METAL BASE BEING TAKEN INTO LIQUID SOLUTION UPON CONTACT WITH CAST METAL POURED, UNDER PROTECTIVE ATMOSPHERE, AT A TEMPERATURE IN THE RANGE BETWEEN ABOUT 2450* F. AND 3000*F. AND UNDER CONDITIONS PROVIDING A SOLIDIFICATION GRADIENT OF 200*F. TO 1200*F.
References Cited (Backward Citations)
US2924004A
Cited
US1529456A
Cited
US2682101A
Cited
US2634469A
Cited
US2637404A
Cited
US2763920A
Cited
US2817141A
Cited
US3041040A
Cited
US2816066A
Cited
US3129069A
Cited
US2874453A
Cited
US2983035A
Cited
US3055089A
Cited
US3019516A
Cited
US3147547A
Cited
US3078554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |