US3890042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for mounting contact screen in photoengraving camera
Assignee: Dainippon Screen Manufacturing Co Ltd
•
Filing: 1973-11-16
•
Granted: 1975-06-17
•
Expires: 1993-11-16
Abstract
Abstract A contact screen mounting mechanism comprising a contact screen retaining frame adopted to move the contact screen from outside the photographing light path to a location in front of the film holder, and squeegee means arranged to be movable up and down so as to closely attach said contact screen to said film holder. Said contact screen retaining frame is arranged movable toward or away from said film holder surface in accordance with vertical movement of said squeegee means.
Inventors
- 👤 Yoshio Miyauchi
- 👤 Tetsuji Okuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:23
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/66; G03B15/00; G03F; G03F7/00; G03F7/20; G03F7/2002; G03F7/2014
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
102 words
A contact screen mounting device for use in a photoengraving camera, comprising: a contact screen retaining frame adopted to retain a contact screen in front of a vacuum suction type film holder and movable to let said contact screen approach or separate from said film holder surface, and squeegee means adapted to move up and down so as to let said contact screen tightly attach to said film holder, and first guide cam means on said frame enabling said contact screen retaining frame to move toward or away from said film holder surface in accordance with vertical movement of said squeegee means.
Claim 2
Dependent Claim
102 words
A contact screen mounting device for use in a photoengraving camera, comprising: a contact screen retaining frame adopted to retain a contact screen in front of a vacuum suction type film holder and movable to let said contact screen approach or separate from said film holder surface, and squeegee means adapted to move up and down so as to let said contact screen tightly attach to said film holder, and first guide cam means on said frame enabling said contact screen retaining frame to move toward or away from said film holder surface in accordance with vertical movement of said squeegee means.
Claim 3
Dependent Claim
48 words
The device as set forth in claim 1, including a second guide cam means on said frame enabling said squeegee means to move toward or away from the film holder surface in accordance with the movement of said contact screen retaining frame relative to said film holder surface.
Claim 4
Dependent Claim
20 words
The device as set forth in claim 1, wherein said contact screen retaining frame is arranged movable up and down.
Claim 5
Dependent Claim
23 words
The device as set forth in claim 1, wherein said contact screen retaining frame is arranged swingable in the back and forth direction.
Claim 6
Dependent Claim
31 words
The device as set forth in claim 1, wherein said contact screen retaining frame is vertically movably supported by a movable frame which is swingable in the back and forth Direction.
Claim 7
Dependent Claim
30 words
The device as set forth in claim 1, wherein said contact screen retaining frame is supported by a movable frame which generates parallel movement in the back and forth direction.
Claim 8
Dependent Claim
26 words
The device as set forth in claim 1, wherein said squeegee means is a squeegee roller arranged to be movable up and down by chain means.
Claim 9
Dependent Claim
100 words
A contact screen mounting device for use in a photoengraving camera, comprising: a contact screen retaining frame, positioned in front of a vacuum suction type film holder, is supported by a back-and-forth swingable frame pivotally supported at its lower end by a transverse horizontal shaft, and a squeegee means, for tightly attaching the contact screen against said folm holder, is arranged such that when it ascends, a part thereon hits against a forwardly-downwardly projecting slant piece provided in said movable frame to let said movable frame tilt forwardly to thereby separate the contact screen retaining frame from the film holder.
Claim 10
Dependent Claim
100 words
A contact screen mounting device for use in a photoengraving camera, comprising: a contact screen retaining frame, positioned in front of a vacuum suction type film holder, is supported by a back-and-forth swingable frame pivotally supported at its lower end by a transverse horizontal shaft, and a squeegee means, for tightly attaching the contact screen against said folm holder, is arranged such that when it ascends, a part thereon hits against a forwardly-downwardly projecting slant piece provided in said movable frame to let said movable frame tilt forwardly to thereby separate the contact screen retaining frame from the film holder.
Claim 11
Dependent Claim
20 words
The device as set forth in claim 8, wherein said contact screen retaining frame is arranged movable up and down.
Claim 12
Dependent Claim
26 words
The device as set forth in claim 8, wherein said squeegee means is a squeegee roller arranged to be moved up and down by chain means.
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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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |