US3261193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bending machine
Assignee: Hilgers Masch & App Bauanstalt
•
Filing: 1964-09-10
•
Granted: 1966-07-19
•
Expires: 1984-09-10
Abstract
No abstract record available.
Inventors
- 👤 Herbert Van Harten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:05
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/02; B21D7/024; B21D9/00; B21D9/05; B21D9/07; B21D9/073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A PRESSURE-DIE-TYPE BENDING MACHINE, PARTICULARLY FOR COLD-BENDING OF ELONGATED TUBULAR WORKPIECES, IN COMBINATION, A MAIN SUPPORT; A BENDING FORM MOUNTED ON SAID MAIN SUPPORT FOR ROTATION ABOUT A FIXED AXIS; A CLAMPING DIE ADJACENT TO AND ARRANGED TO CLAMP A LEADING PORTION OF A WORKPIECE AGAINST SAID FORM SO THAT THE WORKPIECE IS BENT IN RESPONSE TO ROTATION OF THE FORMS; A PRESSURE DIE ARRANGED TO ENGAGE A TRAILING PORTION OF THE WORKPIECE WHICH IS CLAMPED BY SAID FORM AND TO HOLD SUCH TRAILING PORTION AGAINST ROTATION WITH THE FORM; MEANS FOR ADJUSTABLY SECURING SAID PRESSURE DIE TO SAID MAIN SUPPORT SO THAT THE PRESSURE DIE MAY BE ADJUSTED WITH REFERENCE TO THE WORKPIECE; AND MEANS FOR ADJUSTING SAID PRESSURE DIE IN DIRECTIONS PARALLEL WITH SAID FIXED AXIS.
Claim 2
Dependent Claim
129 words
IN A PRESSURE-DIE-TYPE BENDING MACHINE, PARTICULARLY FOR COLD-BENDING OF ELONGATED TUBULAR WORKPIECES, IN COMBINATION, A MAIN SUPPORT; A BENDING FORM MOUNTED ON SAID MAIN SUPPORT FOR ROTATION ABOUT A FIXED AXIS; A CLAMPING DIE ADJACENT TO AND ARRANGED TO CLAMP A LEADING PORTION OF A WORKPIECE AGAINST SAID FORM SO THAT THE WORKPIECE IS BENT IN RESPONSE TO ROTATION OF THE FORMS; A PRESSURE DIE ARRANGED TO ENGAGE A TRAILING PORTION OF THE WORKPIECE WHICH IS CLAMPED BY SAID FORM AND TO HOLD SUCH TRAILING PORTION AGAINST ROTATION WITH THE FORM; MEANS FOR ADJUSTABLY SECURING SAID PRESSURE DIE TO SAID MAIN SUPPORT SO THAT THE PRESSURE DIE MAY BE ADJUSTED WITH REFERENCE TO THE WORKPIECE; AND MEANS FOR ADJUSTING SAID PRESSURE DIE IN DIRECTIONS PARALLEL WITH SAID FIXED AXIS.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |