Patent US4231392A successfully refreshed from Google Patents.
US4231392A
Expired / Lapsed
US
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Color-changing valve for an automatic painting machine
Assignee: Renault SA
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Filing: 1978-08-21
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Granted: 1980-11-04
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Expires: 1998-08-21
Abstract
Abstract The color-changing valve is constituted by a predetermined number of unitary valves, one unitary valve being provided for each color. The unitary valves are mounted on a common manifold by simple engagement and maintained in position on the manifold by screwing means. The valve system is primarily designed for paint-spraying applications in automobile production plants.
Inventors
- 👤 Jean-Pierre Allibert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:14
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/14; B05B12/149; F; F16; F16K; F16K11/00; F16K11/10; F16K11/20; F16K11/22; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/8593; Y10T137/87571; Y10T137/87676; Y10T137/87684
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
149 words
A modular color-changing valve for automatic painting machine comprising: a longitudinally-extending common manifold having a plurality of tapered bores communicating therewith; means for supporting said common manifold, said supporting means having support surfaces extending parallel to and spaced from said common manifold, each of said support surfaces having a plurality of threaded bores formed therein, the axes of the threaded bores being parallel with the axes of the tapered bores of said common manifold; a plurality of unitary valves interposed between said support surfaces and said common manifold, each of said valves having a tapered nozzle received in a tapered bore of said common manifold; and a plurality of screws threadedly engaged with threaded bores of said support surfaces, ends of said screws contacting portions of said unitary valves to urge said tapered nozzles of said unitary valves into sealing engagement with said tapered bores of said common manifold.
Claim 2
Dependent Claim
149 words
A modular color-changing valve for automatic painting machine comprising: a longitudinally-extending common manifold having a plurality of tapered bores communicating therewith; means for supporting said common manifold, said supporting means having support surfaces extending parallel to and spaced from said common manifold, each of said support surfaces having a plurality of threaded bores formed therein, the axes of the threaded bores being parallel with the axes of the tapered bores of said common manifold; a plurality of unitary valves interposed between said support surfaces and said common manifold, each of said valves having a tapered nozzle received in a tapered bore of said common manifold; and a plurality of screws threadedly engaged with threaded bores of said support surfaces, ends of said screws contacting portions of said unitary valves to urge said tapered nozzles of said unitary valves into sealing engagement with said tapered bores of said common manifold.
Claim 3
Dependent Claim
21 words
A valve according to claim 1, wherein each unitary valve is provided with a spring-loaded closure pintle operated by compressed air.
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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) | 1983-11-04 | 1984-05-05 | 1984-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-04 | 1988-05-05 | 1988-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-04 | 1992-05-05 | 1992-11-04 | $7700.00 | Window Closed / Lapsed |