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US3664221A
Expired / Lapsed
US
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Shearing machines
Assignee: Intermenua Pty Ltd
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Filing: 1970-05-05
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Granted: 1972-05-23
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Expires: 1990-05-05
Abstract
Abstract A metal shearing machine in which two cooperating die carriers which, may optionally have dies made integral therewith, are mounted in a supporting stand therefor, the die carriers being associated with means for moving them in parallel planes simultaneously but in directions substantially at right angles to each other.
Inventors
- 👤 Emile Breetvelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:22
CPC Classifications
B; B23; B23D; B23D21/00; Y; Y10; Y10T; Y10T83/00; Y10T83/404
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
65 words
A shearing machine including a stand supporting two cooperating die carriers disposed substantially parallel to each other and displacement means operable on the carriers and adapted to displace each carrier along a path disposed substantially at right angles and contained in a plane parallel to the path of the other carrier, said carriers each being restrained against rotation about axes perpendicular to the parallel planes.
Claim 2
Dependent Claim
65 words
A shearing machine including a stand supporting two cooperating die carriers disposed substantially parallel to each other and displacement means operable on the carriers and adapted to displace each carrier along a path disposed substantially at right angles and contained in a plane parallel to the path of the other carrier, said carriers each being restrained against rotation about axes perpendicular to the parallel planes.
Claim 3
Dependent Claim
23 words
A shearing machine as claimed in claim 1, in which the displacement means includes cams operable on cam followers defined by the carriers.
Claim 4
Dependent Claim
33 words
A shearing machine as claimed in claim 1 in which the displacement means includes two pairs of cams, each pair of cams being adapted to operate on cam followers defined in the carriers.
Claim 5
Dependent Claim
48 words
A shearing machine as claimed in claim 1, in which the displacement means includes two pairs of cams, each pair of cams being adapted to operate on cam followers defined in a carrier and each pair of cams being coupled for in phase operation to a hydraulic ram.
Claim 6
Dependent Claim
41 words
A shearing machine as claimed in claim 1, in which each carrier is adapted to receive a die from at least one pair of dies, the dies of a pair being located in co-operating relationship to one another on the carriers.
Claim 7
Dependent Claim
28 words
A shearing machine as claimed in claim 1, in which the stand is defined by a base supporting two parallel plates between which the carriers are movably mounted.
Claim 8
Dependent Claim
23 words
A shearing machine as claimed in claim 5, in which the dies are adapted to be located in apertures provided in the carriers.
Claim 9
Dependent Claim
22 words
A shearing machine as claimed in claim 5, in which die advancing means is provided for moving co-operating dies into firm contact.
Claim 10
Dependent Claim
16 words
A shearing machine as claimed in claim 1, in which the carriers define co-operating shearing edges.
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |