Patent US3394574A successfully refreshed from Google Patents.
US3394574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of strip metal
Assignee: Crown Packaging UK Ltd
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Filing: 1966-03-29
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Granted: 1968-07-30
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Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 Franek Jozef Tadeusz
- 👤 Grinsted Brian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:37
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/22; B21B1/222
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
166 words
A METHOD OF REDUCING THE THICKNESS OF STRIP METAL CAPABLE OF PLASTIC DEFORMATION WHICH CONSISTS OF DEFINING AN S-SHAPED PATH BY LOCATING FIRST AND SECOND BACKUP ROLLERS IN SPACED RELATION FOR ROTATION ABOUT FIXED AXES AND POSITIVELY ROTATING SAID ROLLERS SO THAT THE SECOND HAS A PERIPHERY SPEED GREATER THAN THAT OF THE FIRST, DISPOSING BETWEEN THE BACK-UP ROLLERS FIRST AND SECOND FREELY ROTATABLE WORK ROLLERS EACH OF WHICH HAS A DIAMETER SMALL AS COMPARED WITH THAT OF THE BACK-UP ROLLERS AND WHICH ARE MOVABLE BODILY RELATIVE TO THE BACK-UP ROLLERS AND COOPERATE ONE WITH THE OTHER AND ONE WITH EACH OF THE BACK-UP ROLLERS, STABILIZING THE POSITION OF THE WORK ROLLERS RELATIVE TO THE BACK-UP ROLLERS BY APPLYING PRESSURE TO AND LENGTHWISE OF ONE OF THE WORK ROLLERS, MOVING A METAL STRIP LENGTHWISE UNDER TENSION THROUGH SAID PATH, AND AT EACH OF THREE POSITIONS SPACED APART ALONG THE PATH APPLYING TO THE STRIP A ROLLING LOAD PRODUCED SOLELY BY THE LENGTHWISE TENSION IN THE STRIP.
Claim 2
Independent Claim
166 words
A METHOD OF REDUCING THE THICKNESS OF STRIP METAL CAPABLE OF PLASTIC DEFORMATION WHICH CONSISTS OF DEFINING AN S-SHAPED PATH BY LOCATING FIRST AND SECOND BACKUP ROLLERS IN SPACED RELATION FOR ROTATION ABOUT FIXED AXES AND POSITIVELY ROTATING SAID ROLLERS SO THAT THE SECOND HAS A PERIPHERY SPEED GREATER THAN THAT OF THE FIRST, DISPOSING BETWEEN THE BACK-UP ROLLERS FIRST AND SECOND FREELY ROTATABLE WORK ROLLERS EACH OF WHICH HAS A DIAMETER SMALL AS COMPARED WITH THAT OF THE BACK-UP ROLLERS AND WHICH ARE MOVABLE BODILY RELATIVE TO THE BACK-UP ROLLERS AND COOPERATE ONE WITH THE OTHER AND ONE WITH EACH OF THE BACK-UP ROLLERS, STABILIZING THE POSITION OF THE WORK ROLLERS RELATIVE TO THE BACK-UP ROLLERS BY APPLYING PRESSURE TO AND LENGTHWISE OF ONE OF THE WORK ROLLERS, MOVING A METAL STRIP LENGTHWISE UNDER TENSION THROUGH SAID PATH, AND AT EACH OF THREE POSITIONS SPACED APART ALONG THE PATH APPLYING TO THE STRIP A ROLLING LOAD PRODUCED SOLELY BY THE LENGTHWISE TENSION IN THE STRIP.
Claim 3
Dependent Claim
198 words
APPARATUS FOR REDUCING THE THICKNESS OF STRIP METAL CAPABLE OF PLASTIC DEFORMATION BY MOVING THE STRIP LENGTHWISE UNDER TENSION AND APPLYING THERETO ROLLING LOADS PRODUCED BY THE LENGTHWISE TENSION IN THE STRIP, SAID APPARATUS COMPRISING POSITIVELY ROTATED FIRST AND SECOND BACK-UP ROLLERS SUPPORTED IN SPACED RELATION FOR ROTATION ABOUT FIXED AXES, FIRST AND SECOND WORK ROLLERS DISPOSED BETWEEN THE BACK-UP ROLLERS AND EACH HAVING A DIAMETER SMALL AS COMPARED WITH THAT OF THE BACK-UP ROLLERS, WORK ROLLER SUPPORT MEANS OPERABLE TO SUPPORT THE WORK ROLLERS FOR FREE ROTATION ABOUT THE AXES THEREOF, FOR MOVEMENT BODILY RELATIVE TO THE BACK-UP ROLLERS, AND FOR CO-OPERATION ONE WITH THE OTHER AND ONE WITH EACH OF THE BACKUP ROLLERS TO FORM THEREWITH AN S-SHAPED PATH THROUGH WHICH THE STRIP METAL IS MOVED LENGTHWISE UNDER TENSION, AND PRESSURE APPLYING MEANS OPERABLE TO APPLY PRESSURE TO AND LENGTHWISE OF ONE OF THE WORK ROLLERS TO STABILIZE THE POSITION OF THE WORK ROLLERS RELATIVE TO THE BACK-UP ROLLERS, THE ARRANGEMENT BEING SUCH THAT AT EACH OF THREE POSITIONS SPACED APART ALONG THE S-SHAPED PATH THERE IS APPLIED TO THE STRIP METAL PASSING THERETHROUGH A ROLLING LOAD PRODUCED SOLELY BY THE LENGTHWISE TENSION IN THE STRIP.
Claim 4
Dependent Claim
198 words
APPARATUS FOR REDUCING THE THICKNESS OF STRIP METAL CAPABLE OF PLASTIC DEFORMATION BY MOVING THE STRIP LENGTHWISE UNDER TENSION AND APPLYING THERETO ROLLING LOADS PRODUCED BY THE LENGTHWISE TENSION IN THE STRIP, SAID APPARATUS COMPRISING POSITIVELY ROTATED FIRST AND SECOND BACK-UP ROLLERS SUPPORTED IN SPACED RELATION FOR ROTATION ABOUT FIXED AXES, FIRST AND SECOND WORK ROLLERS DISPOSED BETWEEN THE BACK-UP ROLLERS AND EACH HAVING A DIAMETER SMALL AS COMPARED WITH THAT OF THE BACK-UP ROLLERS, WORK ROLLER SUPPORT MEANS OPERABLE TO SUPPORT THE WORK ROLLERS FOR FREE ROTATION ABOUT THE AXES THEREOF, FOR MOVEMENT BODILY RELATIVE TO THE BACK-UP ROLLERS, AND FOR CO-OPERATION ONE WITH THE OTHER AND ONE WITH EACH OF THE BACKUP ROLLERS TO FORM THEREWITH AN S-SHAPED PATH THROUGH WHICH THE STRIP METAL IS MOVED LENGTHWISE UNDER TENSION, AND PRESSURE APPLYING MEANS OPERABLE TO APPLY PRESSURE TO AND LENGTHWISE OF ONE OF THE WORK ROLLERS TO STABILIZE THE POSITION OF THE WORK ROLLERS RELATIVE TO THE BACK-UP ROLLERS, THE ARRANGEMENT BEING SUCH THAT AT EACH OF THREE POSITIONS SPACED APART ALONG THE S-SHAPED PATH THERE IS APPLIED TO THE STRIP METAL PASSING THERETHROUGH A ROLLING LOAD PRODUCED SOLELY BY THE LENGTHWISE TENSION IN THE STRIP.
References Cited (Backward Citations)
US2226948A
Cited
US2332796A
Cited
US2291361A
Cited
US2303143A
Cited
US2392323A
Cited
US2526296A
Cited
US3098403A
Cited
GB969395A
Cited
US3253445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |