US3101514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sintered powder metal mold
Assignee: International Motors LLC
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Filing: 1961-12-04
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Granted: 1963-08-27
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Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Callender
- 👤 Harold R Biehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:40
CPC Classifications
B; B22; B22C; B22C7/00; B22C7/06; B22C9/00; B22C9/06; B22C9/065; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12354; Y10T428/12389
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A PRESSURE MOLDING ASSEMBLY COMPRISING A PAIR OF SEPARABLE MOLD MEMBERS HAVING OPPOSED PARTING FACES, AT LEAST ONE OF SAID MOLD MEMBERS INCLUDING A CAVITY IN ITS PARTING FACE AND DEFINING IN AN ASSEMBLED POSITION WITH THE FACES IN ADJACENT RELATION A MOLDING CHAMBER, A SOURCE OF MOLD MATERIAL UNDER PRESSURE, SAID CHAMBER BEING ADAPTED TO BE PLACED INTO COMMUNICATION WITH SAID SOURCE OF MOLD MATERIAL UNDER PRESSURE, EACH OF SAID MOLD MEMBERS BEING CONSTRUCTED OF A SINTERED POWERED METAL HAVING A GENERALLY POROUS STRUCTURE TO PROVIDE PERMEABILITY, SAID POWDERED METAL MOLD MEMBERS ALSO HAVING COPPER METAL DISPERSED THROUGHOUT SAID POROUS STRUCTURE, SAID MOLD MEMBERS HAVING A HIGH ELECTRICAL RESISTIVITY, AND AN ELECTRICAL CONNECTOR CONNECTED TO EACH MOLD MEMBER AND BEING ADAPTED DURING CONNECTION WITH AN ELECTRICAL SOURCE TO DIRECT CURRENT THROUGH SAID MOLD MEMBERS THEREBY HEATING THE SAME WHEREBY MOLD MATERIAL WITHIN SAID CAVITY IS HEATED AND CURED, AND GASES INCIDENT TO SAID CURING ARE RELEASED THROUGH SAID POROUS MOLD MEMBERS.
Claim 2
Dependent Claim
162 words
A PRESSURE MOLDING ASSEMBLY COMPRISING A PAIR OF SEPARABLE MOLD MEMBERS HAVING OPPOSED PARTING FACES, AT LEAST ONE OF SAID MOLD MEMBERS INCLUDING A CAVITY IN ITS PARTING FACE AND DEFINING IN AN ASSEMBLED POSITION WITH THE FACES IN ADJACENT RELATION A MOLDING CHAMBER, A SOURCE OF MOLD MATERIAL UNDER PRESSURE, SAID CHAMBER BEING ADAPTED TO BE PLACED INTO COMMUNICATION WITH SAID SOURCE OF MOLD MATERIAL UNDER PRESSURE, EACH OF SAID MOLD MEMBERS BEING CONSTRUCTED OF A SINTERED POWERED METAL HAVING A GENERALLY POROUS STRUCTURE TO PROVIDE PERMEABILITY, SAID POWDERED METAL MOLD MEMBERS ALSO HAVING COPPER METAL DISPERSED THROUGHOUT SAID POROUS STRUCTURE, SAID MOLD MEMBERS HAVING A HIGH ELECTRICAL RESISTIVITY, AND AN ELECTRICAL CONNECTOR CONNECTED TO EACH MOLD MEMBER AND BEING ADAPTED DURING CONNECTION WITH AN ELECTRICAL SOURCE TO DIRECT CURRENT THROUGH SAID MOLD MEMBERS THEREBY HEATING THE SAME WHEREBY MOLD MATERIAL WITHIN SAID CAVITY IS HEATED AND CURED, AND GASES INCIDENT TO SAID CURING ARE RELEASED THROUGH SAID POROUS MOLD MEMBERS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |