US4125447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for plating the inner surface of tubes
Assignee: Individual
•
Filing: 1978-03-24
•
Granted: 1978-11-14
•
Expires: 1998-03-24
Abstract
Abstract Means for plating the inside of metal cylinders. A tube or pipe to be plated is mounted in a mounting which seals the ends of the tube. Oscillatable means mount an anode so that the anode extends through the tube. A pump circulates an electrolyte through the tube. A source of electricity connected between the anode and the tube. A brush is connected to the anode to scrub the interior surface of the tube as the anode oscillates, to provide a uniform surface.
Inventors
- 👤 Karl R. Bachert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:52
CPC Classifications
C; C25; C25D; C25D7/00; C25D7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
Means for plating the inside of hollow open ended members comprising, means to mount a tube to be plated including means to seal the ends of the tube, an anode, oscillatable means adapted to mount the anode so that the anode extends through the hollow member, means connected to circulate an electrolyte through the hollow member, a source of electricity connected between the anode and the inside surface of the hollow member, and a plurality of insulating bristles mounted on the anode to scrub the interior surface of the tube as the anode vibrates, and maintain the concentricity of the anode to provide a more uniform plating.
Claim 2
Dependent Claim
107 words
Means for plating the inside of hollow open ended members comprising, means to mount a tube to be plated including means to seal the ends of the tube, an anode, oscillatable means adapted to mount the anode so that the anode extends through the hollow member, means connected to circulate an electrolyte through the hollow member, a source of electricity connected between the anode and the inside surface of the hollow member, and a plurality of insulating bristles mounted on the anode to scrub the interior surface of the tube as the anode vibrates, and maintain the concentricity of the anode to provide a more uniform plating.
References Cited (Backward Citations)
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Cited
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Cited
US1733404A
Cited
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Cited
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Cited
US3223600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-13 | 1982-05-15 | 1982-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-13 | 1986-05-15 | 1986-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-13 | 1990-05-15 | 1990-11-14 | $7700.00 | Window Closed / Lapsed |