Patent US2408593A successfully refreshed from Google Patents.
Patent US3958587A successfully refreshed from Google Patents.
US3958587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manifold for fluid distribution and removal
Assignee: BMC Industries Inc
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Filing: 1974-12-19
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Granted: 1976-05-25
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Expires: 1994-12-19
Abstract
Abstract A manifold is provided for use in the etching or plating of materials which continuously supplies fresh fluid to the surface of an article to be etched while continuously removing the old fluid that is adjacent the surface of the article that is to be etched. The transfer of fluid is accomplished by a plurality of sources and a plurality of funnel-like sinks.
Inventors
- 👤 Silas A. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:02
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/08; B; B08; B08B; B08B3/00; B08B3/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
212 words
An apparatus for the uniform distribution of fluid to the surface of an article comprising: a fluid distributing member having a plurality of fluid sources located therein for supplying fluid to the surface of an article, each of said plurality of sources having a plurality of fluid inlets for directing fluid at an acute angle with respect to the surface of the article so that the momentum of the incoming fluid is substantially tangential to the surface of the article; a back member located in spaced relationship from said fluid distributing member, said back member and said fluid distributing member defining a chamber where said back member and said fluid distributing member are uniformly spaced from one another, to thereby allow an article to be inserted in said chamber; said plurality of sources located in spaced relationship to one another to thereby distribute the fluid to the surface of the article which is held in a spaced relationship from said plurality of sources by the fluid supplied from said plurality of sources, a plurality of sinks located in said member, said plurality of sinks located in spaced relationship to one another and in fluid communication with said fluid inlets to thereby remove fluid which is supplied to the surface of the article.
Claim 2
Independent Claim
212 words
An apparatus for the uniform distribution of fluid to the surface of an article comprising: a fluid distributing member having a plurality of fluid sources located therein for supplying fluid to the surface of an article, each of said plurality of sources having a plurality of fluid inlets for directing fluid at an acute angle with respect to the surface of the article so that the momentum of the incoming fluid is substantially tangential to the surface of the article; a back member located in spaced relationship from said fluid distributing member, said back member and said fluid distributing member defining a chamber where said back member and said fluid distributing member are uniformly spaced from one another, to thereby allow an article to be inserted in said chamber; said plurality of sources located in spaced relationship to one another to thereby distribute the fluid to the surface of the article which is held in a spaced relationship from said plurality of sources by the fluid supplied from said plurality of sources, a plurality of sinks located in said member, said plurality of sinks located in spaced relationship to one another and in fluid communication with said fluid inlets to thereby remove fluid which is supplied to the surface of the article.
Claim 3
Dependent Claim
33 words
The apparatus of claim 1 wherein the fluid sources are operable to distribute etchant fluid and an article is hydrostatically supported between said back member and said member having a plurality of sources.
Claim 4
Dependent Claim
15 words
The invention of claim 1 wherein said plurality of sinks have a funnel-like converging section.
Claim 5
Dependent Claim
17 words
The invention of claim 3 wherein said plurality of sources are located in each of said sinks.
Claim 6
Dependent Claim
14 words
The invention of claim 4 wherein said plurality of sinks have a hexagonal shape.
Claim 7
Dependent Claim
21 words
The invention of claim 5 wherein each of said plurality of sinks have at least three sources of fluid located therein.
Claim 8
Dependent Claim
26 words
The invention of claim 6 wherein each of said plurality of sources emits fluid at an acute angle with respect to an article to be etched.
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) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |