US3866892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual torch cutting apparatus
Assignee: C R O Engineering Co Inc
•
Filing: 1973-06-11
•
Granted: 1975-02-18
•
Expires: 1993-06-11
Abstract
Abstract A flame cutting apparatus includes a carriage support longitudinally movable over a work blank. A front bridge unit and a rear bridge unit defining a pair of separate transverse torch supports. The front bridge unit is a conventional multiple torch system to permit cutting of two or more members simultaneously from the blank. The second bridge unit is especially constructed to receive a cutting torch and to permit complete transverse of the work blank. Both bridge units have a common longitudinal servo drive means for the corresponding positioning longitudinally over the blank. A pair of separate and alternately operable transverse servo drives are provided, one each for each of the two bridge units. A selector switch connects one or the other but not both of the transverse servo drives into the main control for introduction of only one unit for simultaneously and integrated movement with the common longitudinal servo drive means. The rear bridge unit consists of a supporting bridge and carriage structure which is releasably interconnected to the main carriage for selective incorporation as a part of a basic multiple torch machine line.
Inventors
- 👤 Harry Hooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:20
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/195; B; B23; B23K; B23K7/00; B23K7/002; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
154 words
A flame cutting apparatus for flame cutting of a workpiece supported in a work area, comprising a longitudinal carriage means mounted for longitudinal movement over a work area, a first bridge unit attached to said carriage means and extending across said work area, said first bridge unit including transverse carriage means to support a plurality of cutting torches for simultaneous transverse movement over the work area, a second bridge unit attached to said longitudinal carriage means in longitudinally spaced relation to said first bridge unit, said second bridge unit having a second transverse carriage means movably supporting a torch means for transverse movement over essentially the complete work area, and control means having a first position operably connected to said first transverse carriage means and a second position operably connected to said second transverse carriage means to transversely move one or the other carriage means and thereby provide alternate working capabilities of the apparatus.
Claim 2
Dependent Claim
154 words
A flame cutting apparatus for flame cutting of a workpiece supported in a work area, comprising a longitudinal carriage means mounted for longitudinal movement over a work area, a first bridge unit attached to said carriage means and extending across said work area, said first bridge unit including transverse carriage means to support a plurality of cutting torches for simultaneous transverse movement over the work area, a second bridge unit attached to said longitudinal carriage means in longitudinally spaced relation to said first bridge unit, said second bridge unit having a second transverse carriage means movably supporting a torch means for transverse movement over essentially the complete work area, and control means having a first position operably connected to said first transverse carriage means and a second position operably connected to said second transverse carriage means to transversely move one or the other carriage means and thereby provide alternate working capabilities of the apparatus.
Claim 3
Dependent Claim
20 words
The flame cutting apparatus of claim 1 wherein said second bridge unit is releasably attached to said longitudinal carriage means.
Claim 4
Dependent Claim
79 words
The flame cutting apparatus of claim 1 wherein said control means includes a longitudinal servo drive means for positioning of said longitudinal carriage means, a first transverse servo drive means for said first transverse carriage means, a second transverse servo drive means for said second transverse carriage means, a servo command unit, and switch means selectively and operatively connecting of the command unit to said longitudinal servo drive means and to only one of said transverse servo drive means.
Claim 5
Dependent Claim
38 words
The flame cutting apparatus of claim 3 wherein said servo means include similar individual feedback signal means, and said switch means selectively operatively connects the feedback signal means of the corresponding one of the transverse servo drive means.
Claim 6
Dependent Claim
25 words
The flame cutting apparatus of claim 1 wherein said first and second bridge units are mounted in parallel relation and perpendicular to the longitudinal movement.
Claim 7
Dependent Claim
107 words
The flame cutting apparatus of claim 5 wherein said control means includes a longitudinal servo drive means for positioning of said longitudinal carriage means, a first transverse servo drive means having a command input means and a position feedback means for said first transverse carriage means, a second transverse servo drive means having a command input means and a positioning feedback means for said second transverse carriage means, a servo command unit, and switch means selectively and operatively connecting of the command unit to only one of said transverse servo drive means and simultaneously connecting of the corresponding feedback means to the corresponding transverse servo drive means.
Claim 8
Dependent Claim
70 words
The flame cutting apparatus of claim 6 wherein said switch means includes first contact means alternatively connected between the position feedback signal means of the first and the second transverse servo drive means, said switch means includes second contact means alternatively connected between the command unit and one of said first and second trAnsverse servo drive means, and means to simultaneously and correspondingly position said first and second contact means.
Claim 9
Dependent Claim
16 words
The apparatus of claim 7 wherein said contact means are double-throw switches having ganged common poles.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |