US3661002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bending machine for bending reinforcing irons for concrete
Assignee: Firma Paul Ferd Peddinghaus
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Filing: 1970-10-05
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Granted: 1972-05-09
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Expires: 1990-10-05
Abstract
Abstract A bending machine for bending reinforcing iron rods for concrete, which includes electric control means for preselecting the bending angle of the bending dish or bending arm, in which each desired bending angle of the rod to be bent has associated therewith a setting potentiometer and all setting potentiometers are preceded by a dead angle advance potentiometer and by recoil potentiometers, said last mentioned two potentiometers which also may be combined to a unit being common to all of said setting potentiometers, while means are provided which are operable selectively to operatively connect any one of said setting potentiometers with said preceding dead angle advance potentiometer and said recoil potentiometer.
Inventors
- 👤 Paul Ferd Peddinghaus Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:42
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/14; B21D11/00; B21D11/10; B21D11/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
138 words
A bending machine fOr bending reinforcing iron rods for concrete, which comprises: a counter roll for supporting a portion of a rod to be bent, a forming member around which the rod is to be bent, a bending roll movable around the axis of said forming member, and control potentiometer means for controlling the movement of said bending roll and thereby the angle by which the iron rod will be bent, said control potentiometer means including a plurality of setting potentiometers for respectively setting the desired bending angle for the rod to be bent, a dead angle advance potentiometer common to said setting potentiometers, and a recoil potentiometer likewise common to said setting potentiometers, and control means operable selectively to correct any one of said setting potentiometers with both said dead angle advance potentiometer and said recoil potentiometer.
Claim 2
Dependent Claim
138 words
A bending machine fOr bending reinforcing iron rods for concrete, which comprises: a counter roll for supporting a portion of a rod to be bent, a forming member around which the rod is to be bent, a bending roll movable around the axis of said forming member, and control potentiometer means for controlling the movement of said bending roll and thereby the angle by which the iron rod will be bent, said control potentiometer means including a plurality of setting potentiometers for respectively setting the desired bending angle for the rod to be bent, a dead angle advance potentiometer common to said setting potentiometers, and a recoil potentiometer likewise common to said setting potentiometers, and control means operable selectively to correct any one of said setting potentiometers with both said dead angle advance potentiometer and said recoil potentiometer.
Claim 3
Dependent Claim
23 words
A bending machine according to claim 1, in which said control means includes a control rod common to all of said setting potentiometers.
Claim 4
Dependent Claim
45 words
A bending machine according to claim 2, in which said control rod is provided with a plurality of spaced connecting contacts arranged in series one behind the other in the longitudinal direction of said control rod, said control rod being displaceable in its longitudinal direction.
Claim 5
Dependent Claim
34 words
A bending machine according to claim 2, in which said control rod is rotatable and is provided with connecting contacts angularly distributed on said connecting rod for respective electrical engagement with said setting potentiometer.
Claim 6
Dependent Claim
23 words
A bending machine according to claim 1, in which said dead angle advance potentiometer and said recoil potentiometer are combined to one unit.
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |