Patent US3616451A successfully refreshed from Google Patents.
US3616451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-layer coating
Assignee: AGC Glass Europe SA
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Filing: 1967-09-27
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Granted: 1971-10-26
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Expires: 1987-09-27
Abstract
Abstract A method and apparatus for coating at least part of a surface of an article in vacuo, in a deposition chamber in which the vacuum is maintained during and between coating operations, the surface to be coated being maintained in a coating position during each coating operation and different coating materials being provided by different sources disposed on a carrier in the chamber, the carrier being displaceable for moving each source in succession into an operative position where emission of material from the source will produce a coating layer on the surface at the coating position.
Inventors
- 👤 Pierre Gallez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:45
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/568; C03; C03C; C03C17/00; C23C14/24; C23C14/34; C23C14/3464
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
30 words
An arrangement as defined in claim 1 wherein there is provided a single carrier which carries separate emission sources and which is displaceable by means located outside the vacuum chamber.
Claim 2
Dependent Claim
36 words
An arrangement as defined in claim 2 further comprising stationary electrical power supply contacts positioned for delivering electrical emission-activating energy to at least one of said sources only when it is at one said operative position.
Claim 3
Dependent Claim
49 words
An arrangement as defined in claim 3 wherein there are provided a plurality of sets of stationary contacts, each said set supplying a different type of electrical energy and being positioned for contacting each emission source of one type when that emission source is at said one operative position.
Claim 4
Dependent Claim
53 words
An arrangement as defined in claim 1 wherein said carrier carries said plurality of emission sources for different coating substances at positions which are angularly spaced about the axis of rotation of said carrier, said carrier being rotatable for bringing each said emission source in succession to the at least one operative position.
Claim 5
Dependent Claim
16 words
An arrangement as defined in claim 5 wherein said carrier is driven by a stepping motor.
Claim 6
Dependent Claim
24 words
An arrangement as defined in claim 5 wherein said carrier comprises spaced end pieces to which the ends of said emission source are connected.
Claim 7
Dependent Claim
23 words
An arrangement as defined in claim 5 further comprising bearings disposed in opposed walls of said vacuum chamber and rotatably supporting said carrier.
Claim 8
Dependent Claim
48 words
An arrangement as defined in claim 5 wherein said carrier comprises hollow shafts rotatably mounted in stationary bearings, and conduit means communicating with the interiors of said shafts and connected to said emission sources for supplying liquid coolant via said shafts to the interiors of said emission sources.
Claim 9
Dependent Claim
48 words
An arrangement as defined in claim 5 wherein said carrier means comprise hollow shafts which open to the outside of said vacuum chamber, and electrical power supply contacts extending into the interior of at least one said shaft and arranged for supplying activating power to said emiSsion sources.
Claim 10
Dependent Claim
69 words
An arrangement as defined in claim 5 wherein at least one of said emission sources is constituted by a container for a coating substance to be evaporated, and wherein said carrier comprises hollow shafts rotatably mounted on stationary supports and supporting said emission sources, and delivery means communicating with the interior of at least one said shaft and with said container for supplying the coating substance to said container.
Claim 11
Dependent Claim
59 words
An arrangement as defined in claim 1 wherein said carrier supports at least one emission source for emitting a coating substance by thermal evaporation and said means for activating the emission sources for emitting a coating substance by thermal evaporation comprise electrical heating means associated with at least one emission source for heating the substances to its evaporation temperature.
Claim 12
Dependent Claim
24 words
An arrangement as defined in claim 1 for forming at least three different coating layers, wherein said carrier supports at least three emission sources.
Claim 13
Dependent Claim
41 words
An arrangement as defined in claim 1 wherein at least one of said emission sources is constituted by a container for a coating substance to be evaporated, and wherein said means for activating comprise electrical heating means associated with said container.
Claim 14
Dependent Claim
27 words
An arrangement as defined in claim 1 wherein at least one of said emission sources is constituted by a cathode for forming a coating by cathodic sputtering.
Claim 15
Dependent Claim
17 words
An arrangement as defined in claim 1 wherein said carrier also carries at least one cleaning electrode.
Claim 16
Dependent Claim
38 words
An arrangement as defined in claim 1 wherein said carrier is arranged for permitting the distance between any one emission source and the surface part to be coated when it is in a coating position to be varied.
Claim 17
Dependent Claim
31 words
An arrangement as defined in claim 1 further comprising partition means associated with said carrier for preventing a substance emitted from one said emission source from contaminating any other emission source.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |