US3230879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underside tension lockup apparatus
Assignee: Wood Newspaper Machinery Corp
•
Filing: 1963-08-06
•
Granted: 1966-01-25
•
Expires: 1983-08-06
Abstract
No abstract record available.
Inventors
- 👤 Emory W Worthington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:18
CPC Classifications
B; B41; B41F; B41F27/00; B41F27/10; B41P; B41P2227/00; B41P2227/10; B41P2227/11
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
AN UNDERSIDE TENSION LOCKUP APPARATUS FOR LOCKING A PAIR OF PRINTING PLATES UNDER TENSION ONTO A PRINTING CYLINDER WHEREIN SAID PLATES HAVE A PLURALITY OF RECESSES ON THEIR UNDERSIDES ALONG THEIR EDGES FOR THE RECEPTION OF CLAMPING AND HOLDING HOOKS AND WHICH PLATES ARE POSITIONED ON DIAMETRICALLY OPPOSITE SIDES OF SAID CYLINDER COMPRISING: (A) TWO GROOVES EXTENDING ALONG A PORTION OF THE LENGTH OF THE CYLINDER ON DIAMETRICALLY OPPOSITE SIDES THEREOF, (B) A ROTATABLE LOCKUP SHAFT IN EACH SAID GROOVE HAVING CAM SURFACES THEREON, (C) HOLDING HOOKS IN EACH SAID GROOVE FOR ENGAGING THE RECESSES OF BOTH PLATES ALONG THEIR EDGES, (D) A PLURALITY OF CLAMP SUPPORTS IN EACH SAID GROOVE WITH THE SHAFT IN THE GROOVE EXTENDING THERETHROUGH, AND (E) A PLURALITY OF SELF-CONTAINED CLAMPING UNITS IN SAID GROOVE ROTATABLY SUPPORTED BY ADJACENT CLAMP
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |