US3967009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for applying liquid to a substrate
Assignee: McCorquodale Colour Display Ltd
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Filing: 1974-09-13
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Granted: 1976-06-29
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Expires: 1994-09-13
Abstract
Abstract This invention provides a method and apparatus for applying liquid to accurately defined areas of solid substrates such as paper, plastics materials and textiles. The method essentially involves the application of the substrate with appreciable pressure to a foraminous outlet disposed at the upper face of a liquid container and the subsequent removal of the substrate therefrom. Care is taken to ensure that the liquid in the container is in wetting contact with the outlet but that there is no development of an external meniscus above the outlet upper surface. In certain preferred embodiments of the invention several liquid containers are provided so that several liquids may be applied at once. The invention finds particular utility in the preparation of "color cards" such as are used for color selection of paints or cosmetics.
Inventors
- 👤 Charles William Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:25
CPC Classifications
B; B41; B41F; B41F31/00; B41F15/00; B41F15/08; B41F17/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
159 words
A method for applying liquid to a plurality of accurately defined spaced areas on each of a succession of like substrates, said method comprising the steps of: providing a rigid bed having a horizontal upper surface formed with a plurality of spaced outlets, said outlets being shaped and spaced to correspond with said defined areas and containing porous or foraminous material having an upper surface substantially coplanar with said horizontal upper surface; supplying liquid to said rigid bed such that liquid is in wetting contact with said material at each of said plurality of outlets and stands at a level no higher than said upper surface of said material; successively applying said plurality of substrates with the application of pressure to said rigid bed such that said plurality of areas on each of said substrates is impressed onto said plurality of outlets; and removing in turn each of said substrates from said rigid bed after application of said liquid.
Claim 2
Independent Claim
159 words
A method for applying liquid to a plurality of accurately defined spaced areas on each of a succession of like substrates, said method comprising the steps of: providing a rigid bed having a horizontal upper surface formed with a plurality of spaced outlets, said outlets being shaped and spaced to correspond with said defined areas and containing porous or foraminous material having an upper surface substantially coplanar with said horizontal upper surface; supplying liquid to said rigid bed such that liquid is in wetting contact with said material at each of said plurality of outlets and stands at a level no higher than said upper surface of said material; successively applying said plurality of substrates with the application of pressure to said rigid bed such that said plurality of areas on each of said substrates is impressed onto said plurality of outlets; and removing in turn each of said substrates from said rigid bed after application of said liquid.
Claim 3
Dependent Claim
29 words
The method of claim 1, wherein said horizontal upper surface of said bed is provided by an impervious integral element formed with and surrounding said plurality of spaced outlets.
Claim 4
Dependent Claim
49 words
The method of claim 2, wherein a single screen constitutes said integral element formed with and surrounding said outlets and also constitutes said porous or foraminous material occupying said outlets, said single screen being a foraminous screen which has been rendered impervious in that part which constitutes said element.
Claim 5
Dependent Claim
22 words
The method of claim 3, wherein said single screen has been rendered impervious by application of a coating to its lower face.
Claim 6
Dependent Claim
12 words
The method of claim 3, wherein said screen is under high tension.
Claim 7
Dependent Claim
17 words
The method of claim 1, wherein perforate material supports said porous or foraminous material occupying said outlets.
Claim 8
Dependent Claim
18 words
The method of claim 1, wherein the same liquid is supplied to two or more of said outlets.
Claim 9
Dependent Claim
16 words
The method of claim 1, wherein a different liquid is supplied to each of said outlets.
Claim 10
Dependent Claim
177 words
A continuous method for applying liquid to a plurality of accurately defined spaced areas on each of a succession of like substrates, said method comprising the steps of: providing a rigid bed having a horizontal upper surface formed with a plurality of spaced outlets, said outlets being shaped and spaced to correspond with said defined areas and containing porous or foraminous material having an upper surface substantially coplanar with said horizontal upper surface; supplying liquid to said rigid bed such that liquid is in wetting contact with said material at each of said plurality of outlets and stands at a level no higher than said upper surface of said material; successively impressing said plurality of substrates with pressure to said rigid bed such that said plurality of areas on each of said substrates is impressed onto said plurality of outlets and such that a substantial region of the substrate is impressed onto the outlet at any one time during impression; and removing in turn each of said substrates from said rigid bed after application of said liquid.
Claim 11
Dependent Claim
177 words
A continuous method for applying liquid to a plurality of accurately defined spaced areas on each of a succession of like substrates, said method comprising the steps of: providing a rigid bed having a horizontal upper surface formed with a plurality of spaced outlets, said outlets being shaped and spaced to correspond with said defined areas and containing porous or foraminous material having an upper surface substantially coplanar with said horizontal upper surface; supplying liquid to said rigid bed such that liquid is in wetting contact with said material at each of said plurality of outlets and stands at a level no higher than said upper surface of said material; successively impressing said plurality of substrates with pressure to said rigid bed such that said plurality of areas on each of said substrates is impressed onto said plurality of outlets and such that a substantial region of the substrate is impressed onto the outlet at any one time during impression; and removing in turn each of said substrates from said rigid bed after application of said liquid.
Claim 12
Dependent Claim
52 words
The method of claim 9, in which a screen provides said horizontal upper surface of said rigid bed and also constitutes said porous or foraminous material occupying said outlets, said screen being foraminous in those areas which constitute said material and being impervious in those areas which provide said horizontal upper surface.
Claim 13
Dependent Claim
18 words
The method of claim 9, wherein the same liquid is supplied to two or more of said outlets.
Claim 14
Dependent Claim
16 words
The method of claim 9, wherein a different liquid is supplied to each of said outlets.
Claim 15
Dependent Claim
10 words
The method of claim 1, wherein the substrate is paper.
Claim 16
Dependent Claim
10 words
The method of claim 9, wherein the substrate is paper.
Claim 17
Dependent Claim
49 words
The method of claim 3, wherein said liquid is maintained within the interstices of the screen and after each pressure contact of the substrate with the screen causing the liquid contained within the screen to be withdrawn, the liquid is quickly replenished and rapidly reaches a state of equilibrium.
Claim 18
Dependent Claim
26 words
The method of claim 1, wherein said liquid is supplied to said rigid bed without the formation of a miniscus on the surface of said bed.
References Cited (Backward Citations)
GB1053663A
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US2620499A
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US3377124A
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GB1183604A
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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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |