US3619401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrodeposition
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1969-10-03
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Granted: 1971-11-09
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Expires: 1989-10-03
Abstract
Abstract Electrodeposition apparatus where, in addition to the conventional cathode, anode and electrolyte supply means, there is also provided a nonconductive hard particle activating means and associated driving means to contact the surface of the electrodeposit under controlled pressure throughout its formation and to both activate the surface of the electrodeposit and also to maximize the supply of fresh electrolyte directly to the activated surface.
Inventors
- 👤 Steve Eisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:31
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/46109; C25; C25D; C25D21/00; C25D21/16; C25D5/00; C25D5/22; C25D5/60; C25D5/605; C25D5/611; C25D5/627; C02F1/463; C02F1/467; C02F1/4676; C02F1/4678; C02F2001/46119
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
29 words
Apparatus as in claim 1 wherein said supporting means comprises an electrolyte-permeable matrix having a plurality of small particles adhered thereto in fixed spaced relationship one to the other.
Claim 2
Dependent Claim
13 words
Apparatus as in claim 2 wherein said matrix comprises a porous nonwoven web.
Claim 3
Dependent Claim
12 words
Apparatus as in claim 2 wherein said matrix comprises an open-weave fabric.
Claim 4
Dependent Claim
20 words
Apparatus as in claim 1 wherein means is provided to continuously move said supporting means relative to said cathode surface.
Claim 5
Dependent Claim
26 words
Apparatus as in claim 1 wherein said particles have a dynamic hardness sufficient to produce a scratch in said Electrodeposit visible under magnification of 10,000 power.
Claim 6
Dependent Claim
11 words
Apparatus as in claim 1 wherein said particles comprise abrasive grains.
Claim 7
Dependent Claim
28 words
Apparatus as in claim 1 wherein said supporting means functions as said electrolyte supply means to carry fresh electrolyte into contact with the mechanically-activated surface of said electrodeposit.
Claim 8
Dependent Claim
67 words
In an apparatus for electrodeposition wherein an electrodeposit is formed on a cathode surface the improvement which comprises: a. an activating means, having a plurality of nonconductive hard particles supported by and affixed to a matrix, in contact with the surface of said electrodeposit; and b. means to move said activating means in contact with and relative to said electrodeposit surface throughout the period of said electrodeposition.
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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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |