US4193777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Painting room with recovery arrangement
Assignee: Renault SA
•
Filing: 1978-07-05
•
Granted: 1980-03-18
•
Expires: 1998-07-05
Abstract
Abstract Paint particles suspended in a gas are removed from the suspension by coating the surfaces of baffles with a material to which paint particles adhere and having a melting point below 100° C.; positioning said coated baffles in a sequence spaced apart from one another; collecting paint particles suspended in a gas on the coated baffles by flowing said gas around said baffles to thereby saturate said coating with paint particles; melting said paint saturated coating; and removing said paint saturated coating from the baffles.
Inventors
- 👤 Francois-Xavier J. de la Riviere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:28
CPC Classifications
B; B01; B01D; B01D46/00; B05; B05B; B05B14/00; B05B14/40; B05B14/43; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
101 words
A process for recovering particles of paint suspended in a gas, which comprises: coating the surfaces of baffles with a material which is solid at the operating temperature of the painting environment and to which paint particles adhere, and having a melting point below 100° C.; positioning said coated baffles in a sequence spaced apart from one another; collecting paint particles suspended in a gas on said coated baffles by flowing said gas around said baffles to thereby saturate said coating with paint particles; utilizing heat to melt said paint saturated coating; and removing said paint saturated coating from said baffles.
Claim 2
Dependent Claim
101 words
A process for recovering particles of paint suspended in a gas, which comprises: coating the surfaces of baffles with a material which is solid at the operating temperature of the painting environment and to which paint particles adhere, and having a melting point below 100° C.; positioning said coated baffles in a sequence spaced apart from one another; collecting paint particles suspended in a gas on said coated baffles by flowing said gas around said baffles to thereby saturate said coating with paint particles; utilizing heat to melt said paint saturated coating; and removing said paint saturated coating from said baffles.
Claim 3
Dependent Claim
18 words
The method of claim 1, wherein said material has a melting point of 40° C. to 80° C.
Claim 4
Dependent Claim
30 words
The method of claim 1, wherein said filter coating is a material selected from the group consisting of paraffin, polyethylene wax and copolymer waxes which can be chlorinated or fluorinated.
Claim 5
Dependent Claim
23 words
The method of claim 1, wherein said gas is air and the suspended paint particles are recovered from air in a paint room.
Claim 6
Dependent Claim
21 words
The method of claim 1, wherein said baffles are coated by immersing said baffles in a vat containing liquid coating material.
Claim 7
Dependent Claim
86 words
The method of claim 1, wherein said baffles are at least one endless sheet which flows through a reservoir containing said paint adherent material in liquid form where the sheet is coated with said material and then the coated shut passes from said reservoir where it is exposed to said air containing paint particles, said paint saturated endless sheet then proceeding into a second reservoir in which the paint saturated coating is melted and the paint in said molten material is recovered by decantation or centrifugation.
Claim 8
Dependent Claim
27 words
The method of claim 1, wherein said coating material is immiscible with the paint being removed thereby enabling easy separation of insoluble paint from said coating material.
Claim 9
Dependent Claim
22 words
The method of claim 1, wherein the removal of paint saturated coating material is facilitated by scraping said material from said baffles.
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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) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |