US3805701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing plate saddle
Assignee: Union Carbide Corp
•
Filing: 1970-03-30
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Granted: 1974-04-23
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Expires: 1990-03-30
Abstract
Abstract A saddle for mounting thin printing plates on conventional printing cylinders by means of tension forces applied to the printing plate.
Inventors
- 👤 J Sonia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:40
CPC Classifications
B; B41; B41F; B41F27/00; B41F27/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
A re-usable saddle for mounting thin printing plates on press cylinders which comprises a generally semi-cylindrical curved member having a concave surface adapted to be mounted on the convex surface of a press cylinder; a smooth uninterrupted convex surface adapted to have one or more printing plates mounted thereon, two slideable end members mounted on the concave surface at the ends of said curved member which are generally parallel to the cylindrical axis, a plurality of lugs on said end members adapted to engage apertures in a printing plate and slots in said end members adapted to engage the tension hooks of a press cylinder whereby said printing plate, end members and curved member may be placed in tension and securely mounted on a press cylinder.
Claim 2
Dependent Claim
126 words
A re-usable saddle for mounting thin printing plates on press cylinders which comprises a generally semi-cylindrical curved member having a concave surface adapted to be mounted on the convex surface of a press cylinder; a smooth uninterrupted convex surface adapted to have one or more printing plates mounted thereon, two slideable end members mounted on the concave surface at the ends of said curved member which are generally parallel to the cylindrical axis, a plurality of lugs on said end members adapted to engage apertures in a printing plate and slots in said end members adapted to engage the tension hooks of a press cylinder whereby said printing plate, end members and curved member may be placed in tension and securely mounted on a press cylinder.
Claim 3
Dependent Claim
16 words
A saddle in accordance with claim 1 wherein the engaging surfaces of said slots are beveled.
Claim 4
Dependent Claim
36 words
A saddle in accordance with claim 1 wherein a circumferential tolerance of from about 1/32 to about 1/2 inch is provided between the engaging portions of each of said end members and said semi-cylindrical curved member.
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) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |