US3585341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structure for and method of electrical machining
Assignee: Individual
•
Filing: 1968-10-18
•
Granted: 1971-06-15
•
Expires: 1988-10-18
Abstract
Abstract A machine tool comprising a large elongated fluid tank, dry chamber boxes at each end of the tank supporting spindles having electrodes secured thereto for reciprocal movement toward and away from a workpiece positioned between the dry chambers in the middle of the fluid tank. Means for moving the dry chamber and the spindle and electrode carried thereby toward and away from the workpiece and for simultaneously rotating the spindles and electrodes. An electrical machining power supply with each spindle at each end of the dielectric tank, servo means for controlling the movement of the spindles and separate fluid supply means for passing fluid through the spindles to the electrodes. Adjusting bolt and abutment structure at one end of the tank for aligning the spindles at the opposite ends of the tank. Structures for hydraulically clamping a workpiece between the electrodes and for levelling a worktable in position beneath the electrodes in the tank. The method including moving a pair of electrodes toward a workpiece from the opposite sides thereof, maintaining a predetermined gap between the electrodes and workpiece while simultaneously rotating the electrodes and passing an electric signal between the electrodes and workpiece in the presence of a dielectric or an electrolyte.
Inventors
- 👤 Thomas J O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:45
CPC Classifications
B; B23; B23H; B23H1/00; B23H7/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
79 words
Structure for electrical machining comprising separate coaxial means for supporting disc electrodes at opposite sides of a workpiece, means for moving the electrodes toward the workpiece operable to maintain a predetermined gap between each of the electrodes and workpiece, means for simultaneously rotating the electrodes carried by the means for supporting the electrodes, and means connected to the means for supporting the electrodes for passing electrical energy between the electrodes and workpiece in the presence of a dielectric fluid.
Claim 2
Dependent Claim
79 words
Structure for electrical machining comprising separate coaxial means for supporting disc electrodes at opposite sides of a workpiece, means for moving the electrodes toward the workpiece operable to maintain a predetermined gap between each of the electrodes and workpiece, means for simultaneously rotating the electrodes carried by the means for supporting the electrodes, and means connected to the means for supporting the electrodes for passing electrical energy between the electrodes and workpiece in the presence of a dielectric fluid.
Claim 3
Dependent Claim
29 words
Structure as set forth in claim 1, wherein the means for supporting the electrodes comprise dry chamber box structure supported for reciprocal movement on a pair of parallel rods.
Claim 4
Dependent Claim
25 words
Structure as set forth in claim 2 and further including a fluid tank in which the spindle is immersed and means for pressurizing the spindle.
Claim 5
Dependent Claim
29 words
Structure as set forth in claim 1 and further including means for transversely adjusting one of the means for supporting an electrode, whereby the electrodes may be readily aligned.
Claim 6
Dependent Claim
24 words
Structure as set forth in claim 1 and further including hydraulic means for clamping a workpiece in position between the means for supporting electrodes.
Claim 7
Dependent Claim
32 words
Structure as set forth in claim 1 and further including a worktable positioned beneath the means for supporting electrodes and means operably associated with the worktable for levelling tHe worktable in position.
Claim 8
Independent Claim
58 words
A method of electrical machining comprising supporting coaxial disc electrodes on opposite sides of a workpiece to be machined, and moving the electrodes axially toward the workpiece to maintain a predetermined gap between the electrodes and workpiece and simultaneously rotating the electrodes in the presence of a dielectric fluid while passing electrical energy between the electrodes and workpiece.
Claim 9
Independent Claim
58 words
A method of electrical machining comprising supporting coaxial disc electrodes on opposite sides of a workpiece to be machined, and moving the electrodes axially toward the workpiece to maintain a predetermined gap between the electrodes and workpiece and simultaneously rotating the electrodes in the presence of a dielectric fluid while passing electrical energy between the electrodes and workpiece.
Claim 10
Dependent Claim
25 words
Structure as set forth in claim 2 wherein the means for moving the electrodes includes piston and cylinder structure connected to the dry chamber structure.
Claim 11
Dependent Claim
25 words
Structure as set forth in claim 2 wherein the means for simultaneously rotating the electrodes includes a rotatable spindle carried by the dry chamber structure.
Claim 12
Dependent Claim
176 words
Structure for electrical machining comprising separate means for supporting electrodes at opposite sides of a workpiece comprising dry chamber box structure supported for reciprocal movement on a pair of parallel rods, means for moving the electrodes toward the workpiece to maintain a predetermined gap therebetween including piston and cylinder structure connected to the dry chamber structure, means for simultaneously rotating the electrodes operably associated with the means for supporting the electrodes including rotatable spindles carried by the dry chamber structures, a fluid tank in which the spindles are immersed and means for pressurizing the spindles, means for transversely adjusting one of the means for supporting an electrode whereby the electrodes may be readily aligned, hydraulic means for clamping a workpiece in position between the means for supporting electrodes, a worktable positioned beneath the means for supporting electrodes and means operably associated with the worktable for levelling the worktable in position and means for connecting the means for supporting the electrodes for passing electrical energy between the electrodes and workpiece in the presence of a dielectric fluid.
Claim 13
Dependent Claim
176 words
Structure for electrical machining comprising separate means for supporting electrodes at opposite sides of a workpiece comprising dry chamber box structure supported for reciprocal movement on a pair of parallel rods, means for moving the electrodes toward the workpiece to maintain a predetermined gap therebetween including piston and cylinder structure connected to the dry chamber structure, means for simultaneously rotating the electrodes operably associated with the means for supporting the electrodes including rotatable spindles carried by the dry chamber structures, a fluid tank in which the spindles are immersed and means for pressurizing the spindles, means for transversely adjusting one of the means for supporting an electrode whereby the electrodes may be readily aligned, hydraulic means for clamping a workpiece in position between the means for supporting electrodes, a worktable positioned beneath the means for supporting electrodes and means operably associated with the worktable for levelling the worktable in position and means for connecting the means for supporting the electrodes for passing electrical energy between the electrodes and workpiece in the presence of a dielectric fluid.
Claim 14
Dependent Claim
65 words
Structure for electrical machining comprising separate coaxial means for supporting disc electrodes at opposite sides of a workpiece, means for moving the electrodes toward the workpiece operable to maintain a predetermined gap between each of the electrodes and workpiece, and means connected to the means for supporting the electrodes for passing electrical energy between the electrodes and workpiece in the presence of a dielectric fluid.
Claim 15
Dependent Claim
65 words
Structure for electrical machining comprising separate coaxial means for supporting disc electrodes at opposite sides of a workpiece, means for moving the electrodes toward the workpiece operable to maintain a predetermined gap between each of the electrodes and workpiece, and means connected to the means for supporting the electrodes for passing electrical energy between the electrodes and workpiece in the presence of a dielectric fluid.
Claim 16
Independent Claim
53 words
A method of electrical machining comprising supporting coaxial disc electrodes on opposite sides of a workpiece to be machined and moving the electrodes axially toward the workpiece to maintain a predetermined gap between the electrodes and workpiece in the presence of a dielectric fluid while passing electrical energy between the electrodes and workpiece.
Claim 17
Independent Claim
53 words
A method of electrical machining comprising supporting coaxial disc electrodes on opposite sides of a workpiece to be machined and moving the electrodes axially toward the workpiece to maintain a predetermined gap between the electrodes and workpiece in the presence of a dielectric fluid while passing electrical energy between the electrodes and workpiece.
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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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |