Patent US3735627A successfully refreshed from Google Patents.
US3735627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punch, bend and trim device
Assignee: WR Grace and Co Conn
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Filing: 1972-02-29
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Granted: 1973-05-29
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Expires: 1992-02-29
Abstract
Abstract The invention disclosed is a device having means to punch, bend and trim a metal backed printing plate to effect accurate registration onto a press. Registration areas are first provided in proper alignment relative the printing areas of the plate being processed. Next, means are provided for positioning the registration areas in fixed location prior to shearing of the plate along the width and length edges thereof. Shearing of the length, along opposite ends of the plate is accompanied by punching saddle engaging slots, and bending. The plate so processed is ready for accurate introduction into a printing press where the ends are conveniently secured in place about a saddle.
Inventors
- 👤 W Eburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:17
CPC Classifications
G; G03; G03F; G03F9/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
110 words
A device for processing a printing plate, said device comprising in combination, means for positioning a printing plate having registration areas disposed on a thin metal backed printing plate accurately aligned relative to the printing areas thereon, means for fixing the positioned plate from movement during subsequent processing, trim or shearing elements disposed for shearing the plate along a width measurement thereof, trim or shearing elements in association with slot punching means both disposed for shearing and punching the plate along opposite ends of a length measurement thereof, and bending means in association with the end shearing and punching means for bending the plate along lines near opposite ends thereof.
Claim 2
Independent Claim
110 words
A device for processing a printing plate, said device comprising in combination, means for positioning a printing plate having registration areas disposed on a thin metal backed printing plate accurately aligned relative to the printing areas thereon, means for fixing the positioned plate from movement during subsequent processing, trim or shearing elements disposed for shearing the plate along a width measurement thereof, trim or shearing elements in association with slot punching means both disposed for shearing and punching the plate along opposite ends of a length measurement thereof, and bending means in association with the end shearing and punching means for bending the plate along lines near opposite ends thereof.
Claim 3
Dependent Claim
29 words
The device of claim 1 wherein means are provided for stretching in the length direction the bended ends to insure against spring return of the edges to original position.
References Cited (Backward Citations)
US3019833A
Cited
US3174322A
Cited
US3595061A
Cited
US3605535A
Cited
US3657952A
Cited
US3635112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |