US3845655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press brakes
Assignee: Widder Corp
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Filing: 1972-09-18
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Granted: 1974-11-05
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Expires: 1992-09-18
Abstract
Abstract A press brake comprising a frame and having a top beam and a bottom beam. The top beam is mounted in the frame to move in a vertical plane toward and away from the bottom beam and carries a working tool. The work engaging tool is pivotally attached to the beam and is provided with means for securing the tool in the plane of the beam movement, and for swinging it outwardly therefrom to enlarge the space between top and bottom beam for entry of a work piece.
Inventors
- 👤 A Krieg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:20
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
115 words
A brake press comprising a frame, an elongated top beam and a bottom beam, said top beam being mounted in said frame to have a bottom edge movable in a vertical plane toward and away from said bottom beam, a tool having an upper edge substantially coextensive with the bottom edge of said top beam for engaging a workpiece, hinge means attached to the upper edge of said tool and the lower edge of said top beam pivotally connected to said tool and top beam for conjoint movement therewith and for swining movement relative thereto and means for moving said tool about said hinge into and out of the plan of said top beam movement.
Claim 2
Dependent Claim
115 words
A brake press comprising a frame, an elongated top beam and a bottom beam, said top beam being mounted in said frame to have a bottom edge movable in a vertical plane toward and away from said bottom beam, a tool having an upper edge substantially coextensive with the bottom edge of said top beam for engaging a workpiece, hinge means attached to the upper edge of said tool and the lower edge of said top beam pivotally connected to said tool and top beam for conjoint movement therewith and for swining movement relative thereto and means for moving said tool about said hinge into and out of the plan of said top beam movement.
Claim 3
Dependent Claim
86 words
The brake press according to claim 1 wherein said top beam has a lower edge and a front face, and includes a supporting bar for holding said tool, having a front face and an upper and lower edge, said hinge means connecting said top beam and said supporting bar on the front faces thereof and arranged to permit the adjacent edge of said supporting bar to abut the lower edge of the top beam when said supporting bar is located in the vertical plane of movement.
Claim 4
Dependent Claim
23 words
The brake press according to claim 2 wherein said abutting edges of said top beam and supporting bar are provided with mating means.
Claim 5
Dependent Claim
19 words
The brake press according to claim 2 wherein said means for pivotting said supporting bar comprises a fluid motor.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |