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US3328853A
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Die casting and trimming machine
Assignee: TRIM TOOL Co
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Filing: 1964-07-21
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Granted: 1967-07-04
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Expires: 1984-07-21
Abstract
No abstract record available.
Inventors
- 👤 George G Pekrol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:05
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/20; B22D17/2076; Y; Y10; Y10S; Y10S425/00; Y10S425/051; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A DIE CASTING AND TRIMMING MACHINE COMPRISING A STATIONARY LOWER MOLD, A MOVABLE UPPER MOLD, SAID MOLD HAVING FACING CAVITIES, A ROTATABLE TURNTABLE ASSOCIATED WITH SAID MOLD FOR FORMING A PORTION OF THE SPRUE IN SUPPORTING A CASTING, SAID LOWER MOLD HAVING EJECTOR PINS FOR EJECTING THE CASTING THEREFROM, AND MEANS SIMULTANEOUSLY ELEVATING THE EJECTOR PINS AND TURNTABLE IN INITIAL INCREMENT OF MOVEMENT AND SUBSEQUENTLY ELEVATING THE TURNTABLE BEYOND THE POINT OF ELEVATION OF THE EJECTOR PINS FOR SEPARATING THE CASTING FROM THE EJECTOR PINS, MEANS FOR ROTATING THE TURNTABLE MULTIPLE INCREMENTS OF UNIDIRECTIONAL ROTATIONAL MOVEMENT OF COOLING THE CASTING AND THEN LOWERING THE TURNTABLE AND EJECTOR PINS FOR A SUBSEQUENT CASTING OPERATION, A TRIMMING MECHANISM INCLUDING A SUPPORTING PLATE FOR THE CASTING FOR SUPPORTING THE CASTING WHEN THE TURNTABLE IS LOWERED, MEANS FOR TRIMMING THE CASTING WHEN SUPPORTED ON THE SUPPORT PLATE, SAID TURNTABLE INCLUDING A PLATE HAVING A PLURALITY OF SEGMENTS SELECTIVELY ALIGNABLE WITH THE MOLD DURING SEQUENTIAL UNIDIRECTIONAL INCREMENTS OF MOVEMENT.
Claim 2
Dependent Claim
164 words
A DIE CASTING AND TRIMMING MACHINE COMPRISING A STATIONARY LOWER MOLD, A MOVABLE UPPER MOLD, SAID MOLD HAVING FACING CAVITIES, A ROTATABLE TURNTABLE ASSOCIATED WITH SAID MOLD FOR FORMING A PORTION OF THE SPRUE IN SUPPORTING A CASTING, SAID LOWER MOLD HAVING EJECTOR PINS FOR EJECTING THE CASTING THEREFROM, AND MEANS SIMULTANEOUSLY ELEVATING THE EJECTOR PINS AND TURNTABLE IN INITIAL INCREMENT OF MOVEMENT AND SUBSEQUENTLY ELEVATING THE TURNTABLE BEYOND THE POINT OF ELEVATION OF THE EJECTOR PINS FOR SEPARATING THE CASTING FROM THE EJECTOR PINS, MEANS FOR ROTATING THE TURNTABLE MULTIPLE INCREMENTS OF UNIDIRECTIONAL ROTATIONAL MOVEMENT OF COOLING THE CASTING AND THEN LOWERING THE TURNTABLE AND EJECTOR PINS FOR A SUBSEQUENT CASTING OPERATION, A TRIMMING MECHANISM INCLUDING A SUPPORTING PLATE FOR THE CASTING FOR SUPPORTING THE CASTING WHEN THE TURNTABLE IS LOWERED, MEANS FOR TRIMMING THE CASTING WHEN SUPPORTED ON THE SUPPORT PLATE, SAID TURNTABLE INCLUDING A PLATE HAVING A PLURALITY OF SEGMENTS SELECTIVELY ALIGNABLE WITH THE MOLD DURING SEQUENTIAL UNIDIRECTIONAL INCREMENTS OF MOVEMENT.
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |