US4143618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroless nickel plating apparatus
Assignee: Individual
•
Filing: 1978-04-14
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Granted: 1979-03-13
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Expires: 1998-04-14
Abstract
Abstract Electroless plating using alternate operative plating tanks of glass fiber reinforced urethane with polypropylene liners, and a third tank of cleaning fluid applied to the tank not being used.
Inventors
- 👤 Evo Del Vecchio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:24
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1619; C23C18/1632
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
Apparatus for electroless plating comprising: a pair of plating tanks; a drain for each tank; a pump operatively associated with each drain; a disposable filter bag located within each tank at the opening thereof; means operatively connecting said disposable filter bags, drains, pumps and tanks whereby plating solution may be pumped from each tank to the other to effect alternative use of the plating tanks; a source of cleaning fluid; means for selectively communicating said source with said tanks whereby one tank may be cleaned while the other tank plates; said tanks each comprising a cellular urethane having an exterior reinforcing layer of fiberglass and an interior rigid and removable liner of polypropylene having a flange element overlying the urethane and fiberglass edges; and a branched perforated pipe means disposed within and at the bottom of each tank and connected to a pressurized air supply whereby to provide an agitator means.
Claim 2
Dependent Claim
151 words
Apparatus for electroless plating comprising: a pair of plating tanks; a drain for each tank; a pump operatively associated with each drain; a disposable filter bag located within each tank at the opening thereof; means operatively connecting said disposable filter bags, drains, pumps and tanks whereby plating solution may be pumped from each tank to the other to effect alternative use of the plating tanks; a source of cleaning fluid; means for selectively communicating said source with said tanks whereby one tank may be cleaned while the other tank plates; said tanks each comprising a cellular urethane having an exterior reinforcing layer of fiberglass and an interior rigid and removable liner of polypropylene having a flange element overlying the urethane and fiberglass edges; and a branched perforated pipe means disposed within and at the bottom of each tank and connected to a pressurized air supply whereby to provide an agitator means.
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) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |