Patent US4098664A successfully refreshed from Google Patents.
US4098664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating vertical plating table
Assignee: Individual
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Filing: 1977-07-25
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Granted: 1978-07-04
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Expires: 1997-07-25
Abstract
Abstract A rotating vertical plating table for electroplating workpieces having interior cylindrical surfaces. An approximately circular worktable is rotatably mounted upon a hollow body and has a central hole which connects to a tube which passes through the hollow body. Excess plating chemicals drain through the central hole and tube and are caught by a catch tray supported underneath the hollow body. The excess plating chemicals are recirculated to a plating anode. A ground plate is attached to the underside of the worktable and makes the workpiece which is attached to the worktable the plating cathode.
Inventors
- 👤 Richard E. Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:09
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/06; C25D7/00; C25D7/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
117 words
A rotating vertical plating table comprising: a. a body having an axial hole therethrough; b. an approximately circular worktable of electrically conductive material with a corrosion resistant coating on one side to form a working surface, said worktable having a central hole and being rotatably mounted on said body such that said axial hole is alined with said central hole; c. means for fixedly supporting said body; d. means for rotating said worktable relative to said body about the central axis of said worktable; e. a catch tray situated beneath said axial hole to catch material which flows from said worktable through said central hole and said axial hole; and f. means for electrically grounding said worktable.
Claim 2
Dependent Claim
117 words
A rotating vertical plating table comprising: a. a body having an axial hole therethrough; b. an approximately circular worktable of electrically conductive material with a corrosion resistant coating on one side to form a working surface, said worktable having a central hole and being rotatably mounted on said body such that said axial hole is alined with said central hole; c. means for fixedly supporting said body; d. means for rotating said worktable relative to said body about the central axis of said worktable; e. a catch tray situated beneath said axial hole to catch material which flows from said worktable through said central hole and said axial hole; and f. means for electrically grounding said worktable.
Claim 3
Dependent Claim
25 words
A rotating vertical plating table as recited in claim 1 further comprising means for recirculating said material from said catch tray to a plating anode.
Claim 4
Dependent Claim
60 words
A rotating vertical plating table as recited in claim 2 further comprising: a. a lining of a non-corrosive material securely fitted in said central hole, one end of which protrudes below said worktable; and b. a tube of a non-corrosive material securely fitted over the protruding end of said lining and extending through said axial hole to said catch tray.
Claim 5
Dependent Claim
21 words
A rotating vertical plating table as recited in claim 3 further comprising means for electrically insulating said body from said worktable.
Claim 6
Dependent Claim
22 words
A rotating vertical plating table as recited in claim 4 further comprising means for controlling said rotating means and said recirculating means.
Claim 7
Dependent Claim
67 words
A rotating vertical plating table as recited in claim 5 wherein said electrically grounding means comprises: a. a ground plate fixedly attached in electrical contact with the underside of said worktable having a hole therethrough alined with said central and said axial holes; and b. a ground strap in sliding contact with said ground plate to which one terminal of a d.c. power supply may be connected.
Claim 8
Dependent Claim
105 words
A rotating vertical plating table as recited in claim 6 further comprising: a. a hollow shaft fixedly attached at one end to said ground plate and situated within said axial hole with the other end protruding below said body; b. a bearing fixedly attached to the exterior of said shaft to provide rolling contact with the interior of said body; c. a ridge fixedly attached interior to said body adjacent to said bearing to prevent downward vertical motion of said shaft; and d. means for connecting said rotating means to the protruding end of said shaft to provide rotation to said shaft and attached worktable.
Claim 9
Dependent Claim
22 words
A rotating vertical plating table as recited in claim 7 further comprising means for a workpiece in electrical contact with said worktable.
Claim 10
Dependent Claim
23 words
A rotating vertical plating table as recited in claim 8 wherein said connecting means comprises a shaft pulley fixedly attached to said shaft.
Claim 11
Dependent Claim
68 words
A rotating vertical plating table as recited in claim 8 wherein said rotating means comprises: a. an electrical motor fixedly attached to said supporting means; b. a motor pulley fixedly attached to the shaft of said motor; and c. a continuous belt is frictional contact with said shaft pulley and said motor to convert the rotational motion of said motor shaft to rotational motion of said hollow shaft.
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) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |