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US3831480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cutter-slitter for high speed bursting apparatus
Assignee: Standard Register Co
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Filing: 1972-05-01
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Granted: 1974-08-27
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Expires: 1992-05-01
Abstract
Abstract The invention relates to a demountably replaceable rotary cutter-slitter provided with a demountable, circular blade of the so-called throw-away, disposable type permitting a dull blade to be quickly and easily replaced with a sharp blade. The cutterslitter device can be positioned to accommodate varying widths items and the location of the cutter relative to the edges of the item may be adjusted according to the desired dimensions by the simple expedient of sliding the cutter normal to the path of movement of the item web avoiding unnececcary downtime of the associated apparatus, e.g., burster.
Inventors
- 👤 J Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:01
CPC Classifications
B; B41; B41L; B41L1/00; B41L1/04; B41L1/08; B41L1/14; B23; B23D; B23D35/00; B23D35/002; B23D35/004; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/24; B26D1/245; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7747; Y10T83/929; Y10T83/9372; Y10T83/9377; Y10T83/9403
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
60 words
A cutter-slitter apparatus comprising a plastic bearing member, a plastic gear member rotatably mounted on said bearing member, said gear member having a hollow internal bore and a plurality of inclined grooves therein, and a plastic metal coated cutting member including means receivable in said grooves for detachably coupling said cutting member to said gear member for conjoint rotation therewith.
Claim 2
Dependent Claim
60 words
A cutter-slitter apparatus comprising a plastic bearing member, a plastic gear member rotatably mounted on said bearing member, said gear member having a hollow internal bore and a plurality of inclined grooves therein, and a plastic metal coated cutting member including means receivable in said grooves for detachably coupling said cutting member to said gear member for conjoint rotation therewith.
Claim 3
Dependent Claim
20 words
The invention of claim 1 wherein said gear member is press fitted to said bearing member and rotatable conjointly therewith.
Claim 4
Dependent Claim
69 words
Cutter-slitter apparatus comprising a one-piece molded plastic cutter member, the peripheral surface of said member being coated with a material capable of being provided with a sharp cutting edge thereon, means mounting said cutter member for rotation adjacent a surface providing a back up anvil for said cutter member, and drive means for said cutter member for rotating said member at a desired cutting speed relative to said anvil.
Claim 5
Dependent Claim
69 words
Cutter-slitter apparatus comprising a one-piece molded plastic cutter member, the peripheral surface of said member being coated with a material capable of being provided with a sharp cutting edge thereon, means mounting said cutter member for rotation adjacent a surface providing a back up anvil for said cutter member, and drive means for said cutter member for rotating said member at a desired cutting speed relative to said anvil.
Claim 6
Dependent Claim
35 words
The invention in accordance with claim 3 wherein said last named means includes a threaded portion operably engageable with a threaded portion on said bearing member, permitting said cutter member to be replaced at will.
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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |