Patent US3704611A successfully refreshed from Google Patents.
US3704611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauging system for press brakes
Assignee: Individual
•
Filing: 1970-03-05
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Granted: 1972-12-05
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Expires: 1990-03-05
Abstract
Abstract Gauges for press brakes and a control system having a plurality of adjustable gauge arms, each of which is pneumatically controlled for movement into effective and non-effective positions automatically upon selected sequential operation of the press.
Inventors
- 👤 Roger B Hirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:26
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/02; B21D11/00; B21D11/22
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
44 words
Gauge control means for a press brake having upper and lower dies comprising, in combination, a plurality of gauges, a flop arm on each gauge, means operable to move the flop arms into ineffective positions, and means to actuate said flop arm moving means.
Claim 2
Dependent Claim
44 words
Gauge control means for a press brake having upper and lower dies comprising, in combination, a plurality of gauges, a flop arm on each gauge, means operable to move the flop arms into ineffective positions, and means to actuate said flop arm moving means.
Claim 3
Dependent Claim
35 words
The control means recited in claim 1, in which the gauges are adjustable to carry the flop arms toward and away from the dies, and a gauge adjustment member is carried on each flop arm.
Claim 4
Dependent Claim
19 words
The control means recited in claim 2, in which the gauge adjustment member is a screw bearing micrometer markings.
Claim 5
Dependent Claim
19 words
The control means recited in claim 1, in which an accessory finger gauge is carried on the flop arm.
Claim 6
Dependent Claim
30 words
The control means recited in claim 1, in which the means for actuating the flop arm moving means comprises an electrical system including a selector switch and a stepper switch.
Claim 7
Dependent Claim
19 words
The control means recited in claim 5, in which the electrical system can function under manual and automatic control.
Claim 8
Dependent Claim
40 words
The control means recited in claim 1, in which the gauges are arranged in sets and the means operable to move the flop arms into ineffective positions is selectively operable to cause movement of the flop arms in selected sets.
Claim 9
Dependent Claim
22 words
The control means recited in claim 1, in which the means for actuating said flop arm moving means includes fluid operated means.
Claim 10
Dependent Claim
22 words
The control means recited in claim 8, in which the fluid operated means includes piston-cylinder assemblies one associated with each flop arm.
Claim 11
Dependent Claim
32 words
The control means recited in claim 1, in which manual control means for the moving of selected flop arms into ineffective positions is mounted on the front side of the press brake.
Claim 12
Dependent Claim
58 words
A gauge for a press brake comprising, in combination, a back bar, an elongated body mounted on the back bar, a flop arm pivotally mounted at one end to said body, and an adjustable gauge element on the other end of said flop arm, said gauge element being offset from the plane of the flop arm pivot point.
Claim 13
Dependent Claim
58 words
A gauge for a press brake comprising, in combination, a back bar, an elongated body mounted on the back bar, a flop arm pivotally mounted at one end to said body, and an adjustable gauge element on the other end of said flop arm, said gauge element being offset from the plane of the flop arm pivot point.
Claim 14
Dependent Claim
19 words
The gauge recited in claim 11, in which the flop arm and adjustable gauge element carry complemental index markings.
Claim 15
Dependent Claim
18 words
The gauge recited in claim 11, in which the adjustable gauge element comprises a screw carrying micro-index markings.
Claim 16
Dependent Claim
16 words
The gauge recited in claim 13, in which means is provided to lock the screw adjustment.
Claim 17
Dependent Claim
52 words
A gauge for a press brake comprising, in combination, a back bar, an elongated body mounted on the back bar, a flop arm pivotally mounted at one end to said body, a gauge element on the other end of said flop arm, and an auxiliary gauge detachably secured to the flop arm.
Claim 18
Dependent Claim
52 words
A gauge for a press brake comprising, in combination, a back bar, an elongated body mounted on the back bar, a flop arm pivotally mounted at one end to said body, a gauge element on the other end of said flop arm, and an auxiliary gauge detachably secured to the flop arm.
Claim 19
Dependent Claim
18 words
The gauge recited in claim 15, in which the auxiliary gauge extends forwardly of the adjustable gauge element.
Claim 20
Dependent Claim
21 words
The gauge recited in claim 15, in which the auxiliary gauge has its free forward end disposed in a vertical plane.
Claim 21
Dependent Claim
65 words
An electric control system adaptable for regulating movement of gauge flop arms from effective to ineffective positions comprising, in combination, a line circuit including a series of manually set switches, a stepper switch, a selector switch and mechanism control solenoids, impulse means in the circuit to actuate the stepper switch step by step so as to deliver current through selected manual switches to selected solenoids.
Claim 22
Dependent Claim
65 words
An electric control system adaptable for regulating movement of gauge flop arms from effective to ineffective positions comprising, in combination, a line circuit including a series of manually set switches, a stepper switch, a selector switch and mechanism control solenoids, impulse means in the circuit to actuate the stepper switch step by step so as to deliver current through selected manual switches to selected solenoids.
Claim 23
Dependent Claim
24 words
The control sysTem recited in claim 18, wherein the control solenoids function to operate valves in a fluid system connected to the flop arms.
Claim 24
Dependent Claim
19 words
The control system recited in claim 18, wherein the solenoids can be selectively actuated independently of said stepper switch.
Claim 25
Dependent Claim
30 words
The control system recited in claim 18, in which the circuit includes switch means operable to permit manual and automatic control of the means for actuating the gauge flop arms.
Claim 26
Dependent Claim
70 words
Gauge control means for a press brake comprising, in combination, a plurality of gauges, a flop arm pivotally mounted at one end of each gauge for movement in a vertical plane, a stop face on the free end of said flop arm, said face being below the pivotal mounting, means operable to move the flop arm into an ineffective elevated position, and means to actuate the flop arm moving means.
Claim 27
Dependent Claim
70 words
Gauge control means for a press brake comprising, in combination, a plurality of gauges, a flop arm pivotally mounted at one end of each gauge for movement in a vertical plane, a stop face on the free end of said flop arm, said face being below the pivotal mounting, means operable to move the flop arm into an ineffective elevated position, and means to actuate the flop arm moving means.
Claim 28
Independent Claim
162 words
The method of gauging the size of successive bends to be formed in a sheet of material by a press brake having gauges, each gauge comprising a body and a movable flop arm connected to said body and having mechanical means operable to move said flop arms and electrical means to actuate the operable means, comprising the steps of setting a plurality of gauges in line with a sheet of material to be formed, positioning said gauges to define the size of each successive formation, bringing the sheet of material into contact with the first gauge to make a first formation, actuating the electrical and mechanical means to move the flop arm of the first gauge into ineffective position, bringing the sheet of material into contact with each next successive effective gauge to make each respective formation, and actuating the electrical and mechanical means to move the flop arm of each preceding gauge into ineffective position before each successive formation is effected.
Claim 29
Independent Claim
162 words
The method of gauging the size of successive bends to be formed in a sheet of material by a press brake having gauges, each gauge comprising a body and a movable flop arm connected to said body and having mechanical means operable to move said flop arms and electrical means to actuate the operable means, comprising the steps of setting a plurality of gauges in line with a sheet of material to be formed, positioning said gauges to define the size of each successive formation, bringing the sheet of material into contact with the first gauge to make a first formation, actuating the electrical and mechanical means to move the flop arm of the first gauge into ineffective position, bringing the sheet of material into contact with each next successive effective gauge to make each respective formation, and actuating the electrical and mechanical means to move the flop arm of each preceding gauge into ineffective position before each successive formation is effected.
Claim 30
Dependent Claim
28 words
The method recited in claim 23, with the added step of controlling actuation of the electrical means by switch means actuable by the cycling of the press brake.
Claim 31
Dependent Claim
20 words
The method recited in claim 23, with the added step of selectively electing which of the operable means is actuated.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |