US3174749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet stacking device
Assignee: Unisys Corp
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Filing: 1961-03-16
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Granted: 1965-03-23
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Expires: 1981-03-16
Abstract
No abstract record available.
Inventors
- 👤 Childs George William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:17
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/02; B65H29/04; B65H29/041; B65H29/045; B65H29/048; B65H29/16; B65H29/18; B65H29/38; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4212; B65H2301/42122; B65H2404/00; B65H2404/20; B65H2404/23; B65H2404/231
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A DEVICE FOR STACKING FLEXIBLE SHEETS COMPRISING A FLEXIBLE BELT, A PLURALITY OF CLIP PLATES, EACH OF SAID CLIP PLATES BEING POSITIONED AT PREDETERMINED POSITIONS ON SAID FLEXIBLE BELT TO LIE IN OVERLAPPING CLAMPING RELATIONSHIP WITH ONE OF ITS ADJACENT CLIP PLATES WHEN A PORTION OF SAID FLEXIBLE BELT IS IN A FIRST PREDETERMINED POSITION, SAID CLIP PLATES BEING IN A NON-CLAMPING RELATIONSHIP WHEN SAID FLEXIBLE BELT IS IN A SECOND PREDETERMINED POSITION, EACH OF SAID CLIP PLATES INCLUDING AN OUTWARDLY EXTENDING LIP PORTION, MEANS TO CONTINUOUSLY DRIVE SAID FLEXIBLE BELT SO THAT EACH PORTION THEREOF IS CONTINUOUSLY TRANSPORTED BETWEEN SAID FIRST AND SECOND PREDETERMINED POSITION, MEANS TO INSERT BETWEEN THE CLIP PLATES SAID FLEXIBLE SHEETS AS THE CLIP PLATES PASS SAID SECOND PREDETERMINED POSITION, CAM MEANS FOR MOMENTARILY REMOVING SAID CLIP PLATES FROM A CLAMPING RELTION BY CONTACTING THE LIP PORTION THEREOF AS THEY PASS A POINT ON A PATH ADJACENT A BIN FOR STORING STACKED FLEXIBLE SHEETS, SAID BIN INCLUDING A DOWNWARDLY EXTENDING PROJECTION ON A WALL THEREOF WHICH FORCES THE FLEXIBLE SHEET, CARRIED BY SAID CLIP PLATES, TO END ITS FORWORD MOVEMENT AND COME TO REST IN THE BIN, AS THE CAM MEANS MOMENTARILY REMOVES SAID CLIP PLATES FROM A CLAMPING RELATION.
Claim 2
Independent Claim
205 words
A DEVICE FOR STACKING FLEXIBLE SHEETS COMPRISING A FLEXIBLE BELT, A PLURALITY OF CLIP PLATES, EACH OF SAID CLIP PLATES BEING POSITIONED AT PREDETERMINED POSITIONS ON SAID FLEXIBLE BELT TO LIE IN OVERLAPPING CLAMPING RELATIONSHIP WITH ONE OF ITS ADJACENT CLIP PLATES WHEN A PORTION OF SAID FLEXIBLE BELT IS IN A FIRST PREDETERMINED POSITION, SAID CLIP PLATES BEING IN A NON-CLAMPING RELATIONSHIP WHEN SAID FLEXIBLE BELT IS IN A SECOND PREDETERMINED POSITION, EACH OF SAID CLIP PLATES INCLUDING AN OUTWARDLY EXTENDING LIP PORTION, MEANS TO CONTINUOUSLY DRIVE SAID FLEXIBLE BELT SO THAT EACH PORTION THEREOF IS CONTINUOUSLY TRANSPORTED BETWEEN SAID FIRST AND SECOND PREDETERMINED POSITION, MEANS TO INSERT BETWEEN THE CLIP PLATES SAID FLEXIBLE SHEETS AS THE CLIP PLATES PASS SAID SECOND PREDETERMINED POSITION, CAM MEANS FOR MOMENTARILY REMOVING SAID CLIP PLATES FROM A CLAMPING RELTION BY CONTACTING THE LIP PORTION THEREOF AS THEY PASS A POINT ON A PATH ADJACENT A BIN FOR STORING STACKED FLEXIBLE SHEETS, SAID BIN INCLUDING A DOWNWARDLY EXTENDING PROJECTION ON A WALL THEREOF WHICH FORCES THE FLEXIBLE SHEET, CARRIED BY SAID CLIP PLATES, TO END ITS FORWORD MOVEMENT AND COME TO REST IN THE BIN, AS THE CAM MEANS MOMENTARILY REMOVES SAID CLIP PLATES FROM A CLAMPING RELATION.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |