US3333452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction of thick flat articles
Assignee: T Sendzimir Inc
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Filing: 1965-03-03
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Granted: 1967-08-01
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Expires: 1985-03-03
Abstract
No abstract record available.
Inventors
- 👤 Sendzimir Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
B; B21; B21J; B21J7/00; B21J7/02; B21J7/14; B21B; B21B1/00; B21B1/42; B21B1/46; B21B1/463; B21B13/00; B21B13/18; B21B15/00; B21B15/0035; B21J1/00; B21J1/04; B21B13/20; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5116; Y10T29/512
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A PROCESS OF REDUCING THE THICKNESS OF A METALLIC SLAB BY A FORGING OPERATION WHILE THE SLAB IS AT A TEMPERATURE WHICH IMPARTS HEAT PLASTICITY TO IT, WHICH PROCESS COMPRISES SUBJECTING THE FACES OF SAID SLAB TO THE ACTION OF AT LEAST ONE PAIR OF PRESSING TOOLS EXTENDING ACROSS THE WIDTH OF THE SLAB, ONE PRESSING TOOL BEING LOCATED ON EACH SIDE THEREOF, ENERGIZING SAID TOOLS SO AS TO PRODUCE A REDUCTION IN THE THICKNESS OF SAID SLAB BY COMPRESSION IN A SERIES OF STEPS IN EACH OF WHICH SAID SLAB IS REDUCED IN THICKNESS BY APPROXIMATELY 5% TO 10% BETWEEN TOOL SURFACES HAVING A SLIGHT NEGATIVE INCLINE WITH RESEPECT TO THE DIRECTION OF ELONGATION OF THE SLAB,THE SAID TOOL SURFACES TERMINATING IN NARROWER SURFACES POSITIVELY INCLINED TO THE DIRECTION OF ELONGATION, WHEREBY AXIAL PRESSURES ARE EXERTED UPON SAID SLAB IN OPPOSITE DIRECTIONS, AND COORDINATING THE SAID AXIAL PRESSURES TO DETERMINE THE POSITION OF THE SAID SLAB AT THE CONCLUSION OF EACH OF THE SAID STEPS.
Claim 2
Dependent Claim
166 words
A PROCESS OF REDUCING THE THICKNESS OF A METALLIC SLAB BY A FORGING OPERATION WHILE THE SLAB IS AT A TEMPERATURE WHICH IMPARTS HEAT PLASTICITY TO IT, WHICH PROCESS COMPRISES SUBJECTING THE FACES OF SAID SLAB TO THE ACTION OF AT LEAST ONE PAIR OF PRESSING TOOLS EXTENDING ACROSS THE WIDTH OF THE SLAB, ONE PRESSING TOOL BEING LOCATED ON EACH SIDE THEREOF, ENERGIZING SAID TOOLS SO AS TO PRODUCE A REDUCTION IN THE THICKNESS OF SAID SLAB BY COMPRESSION IN A SERIES OF STEPS IN EACH OF WHICH SAID SLAB IS REDUCED IN THICKNESS BY APPROXIMATELY 5% TO 10% BETWEEN TOOL SURFACES HAVING A SLIGHT NEGATIVE INCLINE WITH RESEPECT TO THE DIRECTION OF ELONGATION OF THE SLAB,THE SAID TOOL SURFACES TERMINATING IN NARROWER SURFACES POSITIVELY INCLINED TO THE DIRECTION OF ELONGATION, WHEREBY AXIAL PRESSURES ARE EXERTED UPON SAID SLAB IN OPPOSITE DIRECTIONS, AND COORDINATING THE SAID AXIAL PRESSURES TO DETERMINE THE POSITION OF THE SAID SLAB AT THE CONCLUSION OF EACH OF THE SAID STEPS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |