Patent EP0078556A1 successfully refreshed from Google Patents.
US3916749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cutting and fold marking tool
Assignee: Individual
•
Filing: 1973-06-05
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Granted: 1975-11-04
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Expires: 1993-06-05
Abstract
Abstract A rotary cutting or fold line marking tool has a peripheral surface equipped with cutting or indenting blades, as the case may be. The blades each consist of an underlying rib or land on which has been electrodeposited a wear resistant surface of chromium which is built up on the crest of the rib to an increased thickness.
Inventors
- 👤 Georges Edouard Armelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:04
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/0006; B26D2001/002; B26D2001/0053; B26D2001/006; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9319; Y10T83/9372
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
70 words
A tool comprising: a. a generally cylindrical core having means defining a projecting peripheral tooth on an outEr surface of said core and extending longitudinally thereof; and b. a metallic wear-resistant layer disposed on said projecting tooth and having a portion having a varying thickness defining a plurality of generally hemispherical serrations jointly defining a serrated edge along a crest of said projecting tooth and extending longitudinally of said tooth.
Claim 2
Dependent Claim
70 words
A tool comprising: a. a generally cylindrical core having means defining a projecting peripheral tooth on an outEr surface of said core and extending longitudinally thereof; and b. a metallic wear-resistant layer disposed on said projecting tooth and having a portion having a varying thickness defining a plurality of generally hemispherical serrations jointly defining a serrated edge along a crest of said projecting tooth and extending longitudinally of said tooth.
Claim 3
Dependent Claim
32 words
A tool according to claim 1, wherein said projecting tooth has a generally tapezoidal cross section having a base portion adjacent said core and wider than said crest opposite said base portion.
Claim 4
Dependent Claim
27 words
A tool according to claim 1, wherein said metallic wear-resistant layer is disposed on said projecting tooth and is disposed on lateral surface portions of said core.
Claim 5
Dependent Claim
87 words
A tool according to claim 1, further comprising means defining a plurality of circumferentially spaced projecting peripheral teeth on the periphery of said core and extending longitudinally of said core and spaced circumferentially about a cross section of said core, and a metallic wear-resistant layer disposed on each of the teeth of said plurality of projecting teeth and each having a portion having a varying thickness to define a serrated edge along each tooth of said plurality of projecting teeth and extending generally longitudinally of said core.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |