US3169476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric no sheet trip device for a printing press
Assignee: Linotype and Machinery Ltd
•
Filing: 1962-11-30
•
Granted: 1965-02-16
•
Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Fielding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:46
CPC Classifications
B; B41; B41F; B41F33/00; B41F33/04; B41F33/14; B65; B65H; B65H7/00; B65H7/02; B65H7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A SHEET FED PRINTING PRESS, THE COMBINATION OF A FEED BOARD, A ROTARY CYLINDER, A GRIPPER MECHANISM INTERMITTENTLY MOVABLE BETWEEN A SHEET TAKE AND A SHEET DELIVERY POSITION FOR TRANSFERRING SHEETS FROM SAID FEED BOARD TO SAID ROTARY CYLINDER, MEANS FOR ARRESTING SAID GRIPPER MECHANISM IN THE SHEET TAKE POSITION, AND A NO SHEET TRIP DEVICE COMPRISING LIGHT PROJECTOR MEANS, LIGHT RECEIVER MEANS, REFLECTOR MEANS MOUNTED ON SAID GRIPPER MECHANISM TO REFLECT A BEAM OF LIGHT FROM SAID PROJECTOR MEANS TO SAID RECEIVER MEAN S WHEN SAID GRIPPER MECHANISM IS IN A SHEET TAKE POSITION, SAID LIGHT BEAM FOLLOWING A PATH THAT IS INTERSECTED BY A SHEET IN DELIVERY POSITION ON SAID FEED BOARD, AND MEANS RESPONSIVE TO REFLECTION OF THE LIGHT BEAM TO SAID RECEIVER MEANS IN THE ABSENCE OF A SHEET FOR TRIPPING THE PRINTING PRESS.
Claim 2
Dependent Claim
139 words
IN A SHEET FED PRINTING PRESS, THE COMBINATION OF A FEED BOARD, A ROTARY CYLINDER, A GRIPPER MECHANISM INTERMITTENTLY MOVABLE BETWEEN A SHEET TAKE AND A SHEET DELIVERY POSITION FOR TRANSFERRING SHEETS FROM SAID FEED BOARD TO SAID ROTARY CYLINDER, MEANS FOR ARRESTING SAID GRIPPER MECHANISM IN THE SHEET TAKE POSITION, AND A NO SHEET TRIP DEVICE COMPRISING LIGHT PROJECTOR MEANS, LIGHT RECEIVER MEANS, REFLECTOR MEANS MOUNTED ON SAID GRIPPER MECHANISM TO REFLECT A BEAM OF LIGHT FROM SAID PROJECTOR MEANS TO SAID RECEIVER MEAN S WHEN SAID GRIPPER MECHANISM IS IN A SHEET TAKE POSITION, SAID LIGHT BEAM FOLLOWING A PATH THAT IS INTERSECTED BY A SHEET IN DELIVERY POSITION ON SAID FEED BOARD, AND MEANS RESPONSIVE TO REFLECTION OF THE LIGHT BEAM TO SAID RECEIVER MEANS IN THE ABSENCE OF A SHEET FOR TRIPPING THE PRINTING PRESS.
References Cited (Backward Citations)
GB365341A
Cited
US1999618A
Cited
US2072236A
Cited
US2105470A
Cited
US2416595A
Cited
US2594741A
Cited
US2543848A
Cited
US2818252A
Cited
US3080814A
Cited
US2963293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |