Patent US3879223A successfully refreshed from Google Patents.
Patent US4676189A successfully refreshed from Google Patents.
US4676189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic spray coating apparatus
Assignee: Trinity Industrial Corp
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Filing: 1985-11-26
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Granted: 1987-06-30
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Expires: 2005-11-26
Abstract
Abstract An electrostatic spray coating apparatus. Piping for supplying paint, operating air, etc. is divided in the middle of its course between a pressurized air source and downstream portions such as an air motor and a color-change valve, and is connected by a joint at these divided points. The apparatus can thereby be put to functional testing before it is installed on its work spot.
Inventors
- 👤 Hitoshi Takeuchi
- 👤 Naoki Yamada
- 👤 Hisao Ikemura
- 👤 Noriyasu Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:34
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/025; B05B5/04; B05B12/00; B05B12/14; B05B15/00; Y; Y10; Y10S; Y10S118/00; Y10S118/07
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
130 words
An electrostatic spray coating apparatus, comprising: an air-pressure source; a coating booth of insulating material and having a wall; a plurality of color-change valves; an insulating support which includes a coating means positioned at one end thereof and connected to said plurality of color-change valves; piping means connected to said color-change valves for supplying paint and operating air and which passes through said wall of said coating booth and communicates with said air-pressure source; and a plurality of joints disposed integrally with said insulating support in said booth and connected by said piping means with said plurality of color-change valves wherein said plurality of color-change valves are secured in the vicinity of said one end of said insulating support and are connected by said piping means with said air-pressure source.
Claim 2
Dependent Claim
130 words
An electrostatic spray coating apparatus, comprising: an air-pressure source; a coating booth of insulating material and having a wall; a plurality of color-change valves; an insulating support which includes a coating means positioned at one end thereof and connected to said plurality of color-change valves; piping means connected to said color-change valves for supplying paint and operating air and which passes through said wall of said coating booth and communicates with said air-pressure source; and a plurality of joints disposed integrally with said insulating support in said booth and connected by said piping means with said plurality of color-change valves wherein said plurality of color-change valves are secured in the vicinity of said one end of said insulating support and are connected by said piping means with said air-pressure source.
Claim 3
Dependent Claim
18 words
An electrostatic spray coating apparatus according to claim 1, wherein said electrostatic spray coating apparatus is a bell-type.
Claim 4
Dependent Claim
20 words
An electrostatic spray coating apparatus according to claim 1, wherein said electrostatic spray coating apparatus is of a mini-bell type.
Claim 5
Dependent Claim
19 words
An electrostatic spray coating apparatus according to claim 1, wherein said electrostatic spray coating apparatus is of a disc-type.
Claim 6
Dependent Claim
18 words
An electrostatic spray coating apparatus according to either claim 2 or claim 3, further comprising a washing shroud.
Claim 7
Dependent Claim
24 words
An electrostatic spray coating apparatus according to claim 1, wherein the piping means between said joint and a downstream portion comprises a teflon hose.
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) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |