US3612367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous longitudinal dividing or longitudinal trimming of metal plates
Assignee: Schloemann AG
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Filing: 1969-04-08
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Granted: 1971-10-12
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Expires: 1989-04-08
Abstract
Abstract A method of and means for the longitudinal trimming or longitudinal dividing of metal plates, particularly of plates more than 20 millimeters thick, by means of pairs of circular blades, wherein the cutting plane is a vertical plane perpendicular to the surface of the plate, and the surfaces that form the cutting edge of at least one of the blades are nowhere either parallel or perpendicular to the cutting plane, but form an angle of preferably between 2* and 20* therewith.
Inventors
- 👤 Willi Benz
- 👤 Gerhard Tolasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:25
CPC Classifications
B; B23; B23D; B23D19/00; B23D19/04; B23D19/06; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/329; Y10T225/371; Y10T83/00; Y10T83/768; Y10T83/7809; Y10T83/7813; Y10T83/929; Y10T83/9372; Y10T83/9396; Y10T83/9401
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
A device for longitudinally trimming or longitudinally dividing metal plates more than 20 mm. thick, comprising a pair of cooperating rotatable circular cutting blades, each of said blades having a radial surface and circumferential surface perpendicular thereto, said radial and a circumferential surfaces defining a right-angled cutting edge, said circular blades of a pair being so inclined that their radial surfaces are parallel to the running-in direction of the material to be cut, each of said blades having its rotational axis inclined with respect to the surface of the plate at an angle of between 2* and 20*.
Claim 2
Independent Claim
98 words
A device for longitudinally trimming or longitudinally dividing metal plates more than 20 mm. thick, comprising a pair of cooperating rotatable circular cutting blades, each of said blades having a radial surface and circumferential surface perpendicular thereto, said radial and a circumferential surfaces defining a right-angled cutting edge, said circular blades of a pair being so inclined that their radial surfaces are parallel to the running-in direction of the material to be cut, each of said blades having its rotational axis inclined with respect to the surface of the plate at an angle of between 2* and 20*.
Claim 3
Dependent Claim
21 words
A device as claimed in claim 1, the upper blade of a pair being tilted towards the middle of the plate.
Claim 4
Dependent Claim
21 words
A device as claimed in claim 1, the lower blade of a pair being tilted towards the middle of the plate.
Claim 5
Dependent Claim
57 words
A device as claimed in claim 1, for the simultaneous trimming of the two long sides of a plate, comprising double circular-blade trimming shears, the upper blades of both The trimming shears being tilted towards the middle of the plate, and the lower blades of both the shears being tilted away from the middle of the plate.
Claim 6
Independent Claim
119 words
A device for longitudinally trimming or longitudinally dividing metal plates more than 20 mm. thick comprising a pair of cooperating rotatable circular cutting blades, each of said cutting blades having a radial surface and a circumferential surface each of said cutting blades having an inclined surface connecting said radial surface and said circumferential surface at an angle of from 2* to 20* with respect to said radial surface and a cutting edge defined by the intersection of said inclined surface and said circumferential surface, said surfaces defining said cutting edge both being inclined with respect to the surface of the plate, and each of said cutting blades having its rotational axis substantially parallel to the surface of the plate.
Claim 7
Independent Claim
119 words
A device for longitudinally trimming or longitudinally dividing metal plates more than 20 mm. thick comprising a pair of cooperating rotatable circular cutting blades, each of said cutting blades having a radial surface and a circumferential surface each of said cutting blades having an inclined surface connecting said radial surface and said circumferential surface at an angle of from 2* to 20* with respect to said radial surface and a cutting edge defined by the intersection of said inclined surface and said circumferential surface, said surfaces defining said cutting edge both being inclined with respect to the surface of the plate, and each of said cutting blades having its rotational axis substantially parallel to the surface of the plate.
Claim 8
Independent Claim
91 words
A device for longitudinally trimming or longitudinally dividing metal plates more than 20 mm. thick comprising cooperating pairs of rotatable circular cutting blades, each of said blades having a radial surface and a circumferential surface, said circumferential surface being inclined with respect to the surface of the plate, and an inclined surface connecting said circumferential surface and said radial surface at an angle of between 2* and 20* with respect to said radial surface, and defining a sharp cutting edge at the intersection of said inclined surface and said circumferential surface.
Claim 9
Independent Claim
91 words
A device for longitudinally trimming or longitudinally dividing metal plates more than 20 mm. thick comprising cooperating pairs of rotatable circular cutting blades, each of said blades having a radial surface and a circumferential surface, said circumferential surface being inclined with respect to the surface of the plate, and an inclined surface connecting said circumferential surface and said radial surface at an angle of between 2* and 20* with respect to said radial surface, and defining a sharp cutting edge at the intersection of said inclined surface and said circumferential surface.
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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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |