Patent US3620953A successfully refreshed from Google Patents.
US3620953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for the deburring of workpieces
Assignee: Individual
•
Filing: 1968-03-19
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Granted: 1971-11-16
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Expires: 1988-03-19
Abstract
Abstract Apparatus for the electrochemical deburring of metallic workpieces in which a drum of endless band forms a continuously displaceable surface for the workpieces which, together with carbon particles and/or other abrasive particles, are agitated in an electrolyte. The drum is rotated about its horizontal axis while a pair of disks form electrodes closing the drum. When the endless belt is used, it then passes into a vessel retaining the electrolyte and thereafter carrying the workpieces to a collecting trough while carbon particles are continuously added or removed from the system whose electrodes are connected in pair to respective phases of the power supply. A drum system may also have a perforated-wall drum or other means for enabling gases to be withdrawn from the system while a stationary vessel system may effect the agitation of the electrolyte by pulsed jets. A gas is injected into the electrolyte to distribute the electric current path more uniformly and dilute nascent gases produced by electrolysis.
Inventors
- 👤 Kiyoshi Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:50
CPC Classifications
C; C25; C25F; C25F3/00; C25F3/02; C25F3/04; B; B24; B24B; B24B31/00; C25F3/06; C25F3/08; C25F7/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
40 words
The apparatus defined in claim 1 wherein said support means comprises a workpiece carrier for carrying said workpiece in an electrolyte, said container forming an enclosure around said support means for retaining the electrolyte in the form of a bath.
Claim 2
Dependent Claim
24 words
The apparatus defined in claim 2 wherein said workpiece carrier is an elongated element, further comprising means for displacing said element through said electrolyte.
Claim 3
Dependent Claim
45 words
The apparatus defined in claim 3 wherein said element is a conveyor band having a stretch for extending beneath the electrolyte level and stretches upstream of and downstream of the electrolyte for carrying said workpiece into said electrolyte and removing said workpiece from said electrolyte.
Claim 4
Dependent Claim
29 words
The apparatus defined in claim 2 wherein said means for imparting random movement to said particles relative to said workpiece includes means for injecting gas bubbles into said electrolyte.
Claim 5
Dependent Claim
32 words
The apparatus defined in claim 2 wherein said means for imparting random movement to said particles relative to said workpiece includes an electrolyte circulation system for displacing said electrolyte past said surface.
Claim 6
Independent Claim
158 words
An apparatus for deburring an electrolyte-soluble metallic workpiece, comprising: means forming a container for an electrolyte; support means for positioning said workpiece with at least a surface thereof in contact with the electrolyte; means for distributing in the electrolyte a multiplicity of conductive particles; means for agitating the electrolyte in contact with said surface to impart random movement to said particles relative to said workpiece; and means for applying an electric current to said electrolyte to solubilize electrolytically portions of said surface against said particles functioning as counterelectrodes, said support means comprising a workpiece carrier bearing said workpiece in the electrolyte, said apparatus further comprising means forming an enclosure around said support means for retaining the electrolyte in the form of a bath, said means for retaining the electrolyte in the form of a bath said means for distributing said conductive particles in said electrolyte comprising conveyor means for entraining said particles in depositing them in said electrolyte.
Claim 7
Dependent Claim
34 words
The apparatus defined in claim 2 wherein said means for imparting random movement to said particles relative to said workpiece comprises an oscillatory element coupled with said container, and means for oscillating said element.
Claim 8
Dependent Claim
18 words
The apparatus defined in claim 2, further comprising means for continuously separating said particles from said electrolyte bath.
Claim 9
Independent Claim
103 words
An apparatus for electrolytically deburring a multiplicity of metallic workpieces, comprising: a container for receiving a multiplicity of conductive particles distributed in an electrolyte; a support means for positioning said workpieces in said container in the region of said conductive particles and said electrolyte; means coupled with said container for imparting random movement to said particles relative to said workpieces interspaced by the electrolyte within said container; and means for applying an electrochemical machining current through said electrolyte, said workpieces and said particles to electrolytically solubilize at least portions of the individual bodies of said workpieces against said conductive particles functioning as counterelectrodes.
Claim 10
Dependent Claim
32 words
The apparatus defined in claim 10 wherein said support means includes a workpiece carrier for transporting said workpieces successively past said region of said conductive particles and said electrolyte in said container.
Claim 11
Dependent Claim
18 words
The apparatus defined in claim 11, further comprising feed means for introducing said conductive particles into said container.
Claim 12
Dependent Claim
33 words
The apparatus defined in claim 10 wherein said support means includes an elongated supporting surface for carrying said particles and said workpieces within said container while said random movement is imparted between them.
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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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |