Patent US3855441A successfully refreshed from Google Patents.
US3855441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for activation of an abrasive slurry by an electric arc
Assignee: Individual
•
Filing: 1974-04-08
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Granted: 1974-12-17
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Expires: 1994-04-08
Abstract
Abstract The method of reducing the surface of a body by applying an abrasive slurry to the portion of the surface of the body to be reduced and forming successive electric arcs at the portion of the surface to be reduced, to drive the abrasive slurry away from the portion and allow it to return to the portion in the interval between the successive arcs. The apparatus for reducing the surface of a body wherein an abrasive slurry is maintained on the portion of the surface of the body to be reduced, and electric arcs are formed successively at the portion of the body to be reduced, whereby the slurry is driven away from the portion and returned and replenished between successive arcs.
Inventors
- 👤 C Kimmelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:17
CPC Classifications
B; B23; B23K; B23K9/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
59 words
A method for reDucing a surface of a workpiece comprising: a. supplying a dielectric, abrasive slurry to a portion of a workpiece to be reduced; b. generating successive electric arcs in the slurry to move it at the portion of the workpiece to be reduced; c. reducing the surface of the workpiece by the movement of the abrasive slurry.
Claim 2
Independent Claim
59 words
A method for reDucing a surface of a workpiece comprising: a. supplying a dielectric, abrasive slurry to a portion of a workpiece to be reduced; b. generating successive electric arcs in the slurry to move it at the portion of the workpiece to be reduced; c. reducing the surface of the workpiece by the movement of the abrasive slurry.
Claim 3
Dependent Claim
20 words
The method of claim 1 in which the electric arc is formed between an electrode and an electrically conductive workpiece.
Claim 4
Dependent Claim
20 words
The method of claim 1 in which the electric arc is formed between two electrodes immediately adjacent to the workpiece.
Claim 5
Dependent Claim
14 words
The method of claim 1 in which the slurry is oil and abrasive material.
Claim 6
Dependent Claim
14 words
The method of claim 1 in which the slurry is water and abrasive material.
Claim 7
Dependent Claim
25 words
The method of claim 1 in which the electric arcs are formed between the workpiece and electrode disposed in nonparallel relation to the workpiece surface.
Claim 8
Dependent Claim
16 words
The method of claim 1 in which the workpiece is rotated with respect to the electrode.
Claim 9
Dependent Claim
16 words
The method of claim 1 in which the workpiece is reciprocated with respect to the electrode.
Claim 10
Dependent Claim
18 words
The method of claim 1 in which the workpiece is reciprocated and rotated with respect to the electrode.
Claim 11
Independent Claim
49 words
A method for reducing a surface of a workpiece comprising: a. supplying a dielectric, abrasive slurry to a portion of a workpiece; b. positioning an electrode in the slurry in spaced relation to the workpiece; c. generating successive arcs in the abrasive slurry between the electrode and the workpiece.
Claim 12
Independent Claim
49 words
A method for reducing a surface of a workpiece comprising: a. supplying a dielectric, abrasive slurry to a portion of a workpiece; b. positioning an electrode in the slurry in spaced relation to the workpiece; c. generating successive arcs in the abrasive slurry between the electrode and the workpiece.
Claim 13
Independent Claim
58 words
An apparatus for reducing the surface of a workpiece comprising: a. a means to hold a workpiece; b. an electrode disposed angularly in spaced relation to the workpiece; c. an abrasive slurry in the space between the electrode and the workpiece; d. a means to generate successively electric arcs between the electrode and the workpiece, in the slurry.
Claim 14
Independent Claim
58 words
An apparatus for reducing the surface of a workpiece comprising: a. a means to hold a workpiece; b. an electrode disposed angularly in spaced relation to the workpiece; c. an abrasive slurry in the space between the electrode and the workpiece; d. a means to generate successively electric arcs between the electrode and the workpiece, in the slurry.
Claim 15
Dependent Claim
13 words
An apparatus according to claim 11 and a means to reciprocate the workpiece.
Claim 16
Dependent Claim
13 words
An apparatus according to claim 11 and a means to rotate the workpiece.
Claim 17
Dependent Claim
19 words
An apparatus according to claim 11 and a means to adjust the space between the electrode and the workpiece.
Claim 18
Dependent Claim
15 words
An apparatus according to claim 11 and a means to reciprocate and rotate the workpiece.
Claim 19
Independent Claim
62 words
An apparatus for reducing the surface of a workpiece comprising: a. a means to hold a workpiece; b. a pair of electrodes disposed in close proximity to the surface of the workpiece; c. an abrasive slurry in the space between the electrodes and the workpiece; d. means to generate successive electric arcs between the electrodes, in the slurry, adjacent to the workpiece.
Claim 20
Independent Claim
62 words
An apparatus for reducing the surface of a workpiece comprising: a. a means to hold a workpiece; b. a pair of electrodes disposed in close proximity to the surface of the workpiece; c. an abrasive slurry in the space between the electrodes and the workpiece; d. means to generate successive electric arcs between the electrodes, in the slurry, adjacent to the workpiece.
References Cited (Backward Citations)
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Cited
US2974215A
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US3338808A
Cited
US3277267A
Cited
US3423880A
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US3523834A
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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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |