Patent US3409149A successfully refreshed from Google Patents.
US3409149A
Expired / Lapsed
US
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Apparatus for removing ferromagnetic sheets singly from a stack
Assignee: Cefilac SA
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Filing: 1966-08-24
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Granted: 1968-11-05
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Expires: 1986-08-24
Abstract
No abstract record available.
Inventors
- 👤 Graux Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:07
CPC Classifications
B; B65; B65G; B65G59/00; B65G59/02; B65G59/04; B65G59/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
APPARATUS FOR TRANSFERRING MAGNETIC SHEETS FROM A FIRST LOCATION TO A SECOND LOCATION COMPRISING: (A) AN ELEVATOR TABLE FOR SUPPORT OF A STACK OF SHEETS, (B) MEANS TO CONTROL AUTOMATICALLY THE RISE OF SAID TABLE TO MAINTAIN THE UPPERMOST SHEET OF A STACK THEREON BETWEEN UPPER AND LOWER LIMITS OF HEIGHT, (C) MEANS TO SEPARATE THE UPPERMOST SHEET IN THE STACK FROM THE NEXT LOWER SHEET ALONG AT LEAST PART OF THE EDGE THEREOF, (D) MEANS TO GRASP A SHEET, (E) MEANS TO MOVE SAID GRASPING MEANS BETWEEN AN UPPER POSITION AND A LOWER POSITION, SAID LOWER POSITION BEING ABOVE SAID TABLE AND VERTICALLY ADJACENT SAID LOWER LIMIT, SAID MOVING MEANS HAVING DURING UPWARD TRAVEL A LOW VERTICAL SPEED AT SAID LOWER POSITION AND A HIGHER VERTICAL SPEED AT HEIGHER VERTICAL POSITIONS, (F) A MAGNETIC SHEET TRANSPORTING MEANS INCLUDING A PLURALITY OF ROWS OF HORIZONTAL ROLLERS EXTENDING TRANSVERSELY OF THEIR RESPECTIVE ROWS, THE LOWER SURFACE OF SAID ROLLERS LYING BETWEEN SAID UPPER AND LOWER POSITIONS,
Claim 2
Dependent Claim
165 words
APPARATUS FOR TRANSFERRING MAGNETIC SHEETS FROM A FIRST LOCATION TO A SECOND LOCATION COMPRISING: (A) AN ELEVATOR TABLE FOR SUPPORT OF A STACK OF SHEETS, (B) MEANS TO CONTROL AUTOMATICALLY THE RISE OF SAID TABLE TO MAINTAIN THE UPPERMOST SHEET OF A STACK THEREON BETWEEN UPPER AND LOWER LIMITS OF HEIGHT, (C) MEANS TO SEPARATE THE UPPERMOST SHEET IN THE STACK FROM THE NEXT LOWER SHEET ALONG AT LEAST PART OF THE EDGE THEREOF, (D) MEANS TO GRASP A SHEET, (E) MEANS TO MOVE SAID GRASPING MEANS BETWEEN AN UPPER POSITION AND A LOWER POSITION, SAID LOWER POSITION BEING ABOVE SAID TABLE AND VERTICALLY ADJACENT SAID LOWER LIMIT, SAID MOVING MEANS HAVING DURING UPWARD TRAVEL A LOW VERTICAL SPEED AT SAID LOWER POSITION AND A HIGHER VERTICAL SPEED AT HEIGHER VERTICAL POSITIONS, (F) A MAGNETIC SHEET TRANSPORTING MEANS INCLUDING A PLURALITY OF ROWS OF HORIZONTAL ROLLERS EXTENDING TRANSVERSELY OF THEIR RESPECTIVE ROWS, THE LOWER SURFACE OF SAID ROLLERS LYING BETWEEN SAID UPPER AND LOWER POSITIONS,
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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |