US3841183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shearing machine
Assignee: Intermenua Pty Ltd
•
Filing: 1972-07-31
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Granted: 1974-10-15
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Expires: 1992-07-31
Abstract
Abstract The invention is concerned with a shearing machine of the kind provided with a displaceable supporting table in which the table is mounted for pivotal movement between operative and discharge positions.
Inventors
- 👤 Zyl J Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:59
CPC Classifications
B; B23; B23D; B23D33/00; B23D33/02; B23D33/025; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2198; Y10T83/869; Y10T83/8821; Y10T83/8854
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
131 words
A shearing machine comprising a fixed blade, a movable blade movable over the fixed blade to set up a shearing action along the shearing edges, a work support member located in a rest position adjacent to and along substantially the length of the shearing edge of the fixed blade in the path of the movable blade and yieldably supported against downward displacement by the movable blade during a shearing stroke, mounting means attaching the work support member to a frame of the machine, the mounting means permitting the work support member to swing between an operative position and a discharge position, and displacement means for swinging the work support member between its operative position and its discharge position while the work support member is not urged downward by the movable blade.
Claim 2
Dependent Claim
131 words
A shearing machine comprising a fixed blade, a movable blade movable over the fixed blade to set up a shearing action along the shearing edges, a work support member located in a rest position adjacent to and along substantially the length of the shearing edge of the fixed blade in the path of the movable blade and yieldably supported against downward displacement by the movable blade during a shearing stroke, mounting means attaching the work support member to a frame of the machine, the mounting means permitting the work support member to swing between an operative position and a discharge position, and displacement means for swinging the work support member between its operative position and its discharge position while the work support member is not urged downward by the movable blade.
Claim 3
Dependent Claim
30 words
A shearing machine as claimed in claim 1 wherein the mounting means is adapted to allow the work support member to swing about an axis parallel to its longitudinal axis.
Claim 4
Dependent Claim
33 words
A shearing machine as claimed in claim 2 wherein the displacement means comprises at least one piston and cylinder mounted for operation between the frame of the machine and the work support member.
References Cited (Backward Citations)
US3126816A
Cited
DE615716C
Cited
US2933966A
Cited
US3421394A
Cited
US3492898A
Cited
US3631750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |