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Patent US3645778A successfully refreshed from Google Patents.
US3645778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal oxide coatings on glass
Assignee: OI Glass Inc
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Filing: 1969-01-06
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Granted: 1972-02-29
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Expires: 1989-01-06
Abstract
Abstract While being nonrotatably transported along a flight conveyor, glass containers are electrostatically treated with colored metal oxide film-forming organometallic compounds. The organometallic compounds are electrostatically sprayed in a nonflammable solvent system containing a halogenated solvent while a horizontal flow of air is provided across the flight conveyor in impinging relation with respect to the container being treated.
Inventors
- 👤 Edward P Nesteruk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/08; B05B14/00; C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/217; C03C2217/229; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112; C03C2218/115
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
40 words
The method of claim 1, wherein said organometallic compound is ferric acetyl acetonate and said solvent system consists of a mixture of (a) methylene chloride and trichloroethylene, or (b) trichloroethylene and 1,1,1 trichloroethane or (c) methylene chloride and 1,1,1 trichloroethane.
Claim 2
Dependent Claim
16 words
The method of claim 2 wherein said mixture is a mixture of methylene chloride and trichloroethylene.
Claim 3
Dependent Claim
33 words
The method of claim 2 wherein said container is electrostatically sprayed with a fan-shaped spray pattern having an axis which is inclined with respect to the direction of container transportation along said conveyor.
Claim 4
Dependent Claim
21 words
The method of claim 1 wherein said halogenated organic solvent is a chlorinated organic compound having up to two carbon atoms.
Claim 5
Dependent Claim
29 words
The method of claim 5 wherein said organometallic compound is a member selected from the group consisting of a metal acetyl acetonate, a metal hexanoate and a metal octanoate.
Claim 6
Dependent Claim
23 words
The method of claim 6 wherein said solution contains at least 12 grams of said pyrolyzable organometallic compound per 100 milliliters of solution.
Claim 7
Dependent Claim
30 words
The method of claim 6 wherein said chlorinated organic compound is a member selected from the group consisting of 1,1,1-trichloroethane, 1,1,2-trichloroethane, 2 dichloroethylene methylene chloride, tetrachloroethane, trichloroethylene and mixtures thereof.
Claim 8
Dependent Claim
31 words
The method of claim 6 wherein said solvent system consists essentially of a mixture of trichloroethylene and a member selected from the group consisting of methylene chloride and 1,1, 1 trichloroethane.
Claim 9
Dependent Claim
30 words
The method of claim 6 wherein said solvent system consists essentially of a mixture of methylene chloride and a member selected from the group consisting of trichloroethylene and 1,1,1 trichloroethane.
Claim 10
Independent Claim
278 words
A method for forming uniform colored metal oxide coating on the external surface of freshly formed glass containers as they are nonrotatably transported in an upright position along a conveyor having a container-supporting surface from a glass forming machine to an annealing lehr which comprises: creating a first flow of air across said container-supporting surface which is parallel thereto, said first flow of air having a direction of movement normal to the direction of container movement along said conveyor and being in impinging relation with respect to said transported containers, and, while said container is transported through said flow of air, directing at least two electrostatically atomized sprays of a nonflammable solution of a pyrolyzable colored metal oxide film-forming organometallic compound which is a hexanoate or an octanoate or an acetyl acetonate in a solvent system consisting essentially of a chlorinated organic compound having up to two carbon atoms or mixtures of such compounds onto said container in an amount sufficient to form a uniform colored metal oxide coating thereon; creating a second flow of air across said container-supporting surface which is parallel thereto, said second flow of air having a direction of movement normal to the direction of container movement along said conveyor and being in impinging relation with respect to said transported containers but oppositely directed with respect to said first flow of air and, while said container is transported through said second flow of air, directing at least two electrostatically atomized sprays of said solution onto said container in an amount sufficient to form a uniform colored metal oxide coating thereon, said latter two sprays being oppositely directed with respect to said first two sprays.
Claim 11
Dependent Claim
31 words
The method of claim 11 wherein the axis of the respective sprays are parallel to said container-supporting surface and inclined with respect to the direction of container movement along said conveyor.
Claim 12
Dependent Claim
27 words
The method of claim 12 wherein said organometallic compound is ferric acetyl acetonate and said solvent system consists essentially of a mixture of methylene chloride and trichloroethylene.
Claim 13
Dependent Claim
19 words
The method of claim 12 wherein the spray patterns of each of said sprays above said conveyor are independent.
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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |