US4214522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for manufacturing a stencil
Assignee: Svecia Silkscreen Maskiner AB
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Filing: 1978-04-25
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Granted: 1980-07-29
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Expires: 1998-04-25
Abstract
Abstract An apparatus for manufacturing or treating a stencil intended for use in a silkscreen printing machine. The stencil has been lighttreated to transfer a design to a pre-treated net or film. The film being subjected to a water-treatment process to rinse the film to develop said pattern. The apparatus comprises at least two pipes having mutually facing nozzles and being arranged to co-act with a displaceable holder in a manner such one of said at least two pipes passes on the rear of the film and the other of said at least two pipes passes on the other side of said film.
Inventors
- 👤 Dag Bille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:31
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/26; G03F7/30; G03F7/3085
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
149 words
An apparatus for treating a stencil intended for use in a silkscreen printing machine which has been light-treated to transfer a design to a pre-treated net or film, said stencil being subjected to a water-treatment process to rinse the stencil to develop said pattern, comprising: at least two vertically extending pipes having mutually facing nozzles and arranged on a displaceable holder in a manner such that one of said at least two pipes passes on the rear side of the stencil and the other of said at least two pipes passes on the forward side of said stencil, means for supporting a stencil between the two vertical pipes and means for supporting said holder for substantially horizontal movement such that each side of the stencil will be respectively traversed by said pipes, and means for supplying water to said pipes to treat a stencil supported on said supporting means.
Claim 2
Independent Claim
149 words
An apparatus for treating a stencil intended for use in a silkscreen printing machine which has been light-treated to transfer a design to a pre-treated net or film, said stencil being subjected to a water-treatment process to rinse the stencil to develop said pattern, comprising: at least two vertically extending pipes having mutually facing nozzles and arranged on a displaceable holder in a manner such that one of said at least two pipes passes on the rear side of the stencil and the other of said at least two pipes passes on the forward side of said stencil, means for supporting a stencil between the two vertical pipes and means for supporting said holder for substantially horizontal movement such that each side of the stencil will be respectively traversed by said pipes, and means for supplying water to said pipes to treat a stencil supported on said supporting means.
Claim 3
Dependent Claim
71 words
An apparatus according to claim 1, characterised in that there are provided two pairs of pipes with associated mutually opposing nozzles, respective ones of said pairs being arranged on a respective side of the stencil, wherein one pair of pipes is adapted to spray the stencil or film with water, and wherein the other pair of pipes are intended to convey a solution capable of removing emulsion applied to the stencil.
Claim 4
Dependent Claim
35 words
An apparatus according to claim 1, wherein said support means includes horizontally extending support rails arranged parallel to one another between said at least two pipes, said support rails being adapted to support said stencil.
Claim 5
Dependent Claim
21 words
An apparatus according to claim 1, characterised in that means are provided for applying pressures of different magnitudes to respective pipes.
Claim 6
Dependent Claim
35 words
An apparatus according to claim 4, characterised in that the nozzle of respective pipes are constructed to deliver a larger quantity of liquid to the forward side of the stencil than to its rear side.
Claim 7
Dependent Claim
18 words
An apparatus according to claim 4 or 5, characterised in that one of said pipes has a construction.
Claim 8
Dependent Claim
18 words
The apparatus of claim 1 wherein said water supply means includes a pump mounted on said displaceable holder.
Claim 9
Dependent Claim
28 words
The apparatus of claim 1 wherein said supporting means includes a stationary frame structure and said displaceable holder comprises a second frame structure movable within said stationary frame.
Claim 10
Dependent Claim
22 words
An apparatus according to claim 8, characterised in that a water basin extends along the whole length of the stationary frame structure.
Claim 11
Dependent Claim
27 words
An apparatus according to claim 8, characterised in that a cable guide is arranged to extend along the whole of the length of the stationary frame structure.
Claim 12
Dependent Claim
31 words
An apparatus according to claim 8, characterised in that the frame structure is provided with means for supporting a container for a washing liquid and a pump coupled to said container.
Claim 13
Dependent Claim
24 words
An apparatus according to claim 8, characterised in that an outlet tray extends along the whole of the length of the stationary frame structure.
Claim 14
Dependent Claim
42 words
An apparatus according to claim 8, characterised in that the second frame structure is arranged to rest on two parallel chanelled elements, and that said frame structure is provided at the lower part thereof with wheels engaging the channels of said elements.
Claim 15
Dependent Claim
29 words
An apparatus according to claim 13, characterised in that at least one wheel is arranged to be driven by a drive motor fixedly mounted on the second frame structure.
Claim 16
Dependent Claim
81 words
An apparatus according to claim 8, characterised in that two pairs of vertically extending pipes having nozzles associated therewith are arranged on the second frame structure in a manner to be located on respective sides of the stencil, and in that one pair of pipes with associated nozzles facing each other is intended to convey water for spraying the stencil, while the other pair of pipes is intended to convey a washing solution capable of removing emulsion applied to the stencil.
Claim 17
Dependent Claim
38 words
An apparatus according to claim 15, characterised in that guide rails extend horizontally and parallel to one another between the respective pipes of said pairs in the stationary frame structure, said rails being adapted to support the stencil.
Claim 18
Dependent Claim
21 words
An apparatus according to claim 15, characterised in that means are provided for varying the pressure applied to the different pipes.
Claim 19
Dependent Claim
44 words
An apparatus according to claim 17, characterised in that the nozzles of a pipe serving the rear side of the stencil is arranged to supply a larger qunatity of liquid to said rear side than the nozzles serving the front side of said stencil.
Claim 20
Dependent Claim
23 words
An apparatus according to claim 17 or 18, characterised in that the pipes are provided with throttle valves for regulating the spray pressure.
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) | 1983-07-29 | 1984-01-28 | 1984-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-29 | 1988-01-28 | 1988-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-29 | 1992-01-28 | 1992-07-29 | $7700.00 | Window Closed / Lapsed |