US3771869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing plate maker
Assignee: DOUTHITT CORP
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Filing: 1973-02-26
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Granted: 1973-11-13
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Expires: 1993-02-26
Abstract
Abstract In a printing plate maker which has a body, a blanket frame pivoted thereon and a glass frame pivoted to the blanket frame, with both frames tiltable to an upright position, there is provided a rearwardly extending framework mounting channel tracks. An inverted U-shaped housing overlies said framework and has rollers supported in the tracks for longitudinal adjustments of the housing relative to the body. A high intensity light support frame overlies the framework and at its rear end has rollers guidably mounted in the channel tracks, with the forward ends thereof mounting additional rollers guidably mounted within opposed channels upon the interior of the housing wall for adjustment relative to the housing. The housing is adapted for adjustment independent of and relative to the light support frame. The light support frame upon the interior of the housing mounts an upright bellows plate which is apertured. A light frame extends transversely of the light support frame and is pivotally mounted thereon. A high intensity light source is secured to the light frame and includes a forwardly projecting hood which is supported upon and registers with the bellows plate aperture. A separate manual control rod is secured at one end to the under side of the light support frame and at its other end has a handle with associated pointer adapted to move with respect to a stationary longitudinally extending scale. Said rod by remote control manually regulates the center distance between the high intensity light on the light support frame with respect to the glass frame.
Inventors
- 👤 R Diehl
- 👤 R Maher
- 👤 W Amolsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:46
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
243 words
In a printing plate maker having a body, a blanket frame horizontally disposed upon said body and pivoted thereon for tilting to an upright position, and a glass frame positioned over the blanket frame in sealing registry therewith and hingedly connected thereto for relative opening movements when horizontal and for tilting movements therewith into an upright printing position; a framework connected to said body and extending rearwardly thereof; a pair of parallel spaced opposed channel tracks upon said framework and extending substantially its length; an inverted U-shaped housing spanning said framework; rollers upon the sides of said housing at its lower edges and guidably mounted in said channel tracks for reciprocal movements thereon; a high intensity light support frame overlying said framework and at its forward end projecting into said housing; rollers at the rear sides of the light support frame nested and supported within said channel tracks; opposed inwardly directed channel tracks upon the inner surface of the housing side walls; rollers at the front sides of the light support frame nested and movably supported within said housing channel tracks; said housing adapted for reciprocal movements upon said framework and for registry with said glass frame when tilted upright; said light support frame being adapted for reciprocal movements upon the framework and for relative movement within and with respect to said housing for selectively controlling the center distance between the glass frame and a light source mounted upon said light support frame.
Claim 2
Dependent Claim
243 words
In a printing plate maker having a body, a blanket frame horizontally disposed upon said body and pivoted thereon for tilting to an upright position, and a glass frame positioned over the blanket frame in sealing registry therewith and hingedly connected thereto for relative opening movements when horizontal and for tilting movements therewith into an upright printing position; a framework connected to said body and extending rearwardly thereof; a pair of parallel spaced opposed channel tracks upon said framework and extending substantially its length; an inverted U-shaped housing spanning said framework; rollers upon the sides of said housing at its lower edges and guidably mounted in said channel tracks for reciprocal movements thereon; a high intensity light support frame overlying said framework and at its forward end projecting into said housing; rollers at the rear sides of the light support frame nested and supported within said channel tracks; opposed inwardly directed channel tracks upon the inner surface of the housing side walls; rollers at the front sides of the light support frame nested and movably supported within said housing channel tracks; said housing adapted for reciprocal movements upon said framework and for registry with said glass frame when tilted upright; said light support frame being adapted for reciprocal movements upon the framework and for relative movement within and with respect to said housing for selectively controlling the center distance between the glass frame and a light source mounted upon said light support frame.
Claim 3
Dependent Claim
78 words
In the printing plate maker of claim 1, opposed upright outwardly directed channels upon the front outer sides of said housing; and links pivotally mounted at their one ends upon said blanket frame and at their other ends, mounting rollers positioned within said upright channels whereby, when the blanket frame is horizontal, the housing is spaced rearwardly of said body, and when said blanket frame is upright, said housing is moved into registry with the upright glass frame.
Claim 4
Dependent Claim
64 words
In the printing plate maker of claim 1, a control rod at one end secured to said light support frame and at its other end, having a handle for manually moving the light support frame relative to said glass frame and to said housing; a pointer on said handle; and a longitudinally extending scale upon the printing plate maker for registry with said pointer.
Claim 5
Dependent Claim
41 words
In the printing plate maker of claim 3, said rod extending forwardly into said body and guidably mounted thereon; a scale underlying said rod and its handle facilitating longitudinal adjustment of the light sUpport frame when the blanket frame is upright.
Claim 6
Dependent Claim
59 words
In the printing plate maker of claim 1, an upward transverse centrally apertured bellows plate mounted upon the forward end of said light support frame, a high intensity light source mounted upon the light support frame; and a reflector hood upon and extending forwardly of said light source mounted upon said bellows plate in snug registry with its aperture.
Claim 7
Dependent Claim
37 words
In the printing plate maker of claim 5, an angle iron mounted upon said bellows plate along the sides and bottom of said aperture and extending rearwardly thereof to laterally enclose and supportably receive said reflector hood.
Claim 8
Dependent Claim
37 words
In the printing plate maker of claim 5, the mounting of said light source including an upright frame adjustably receiving said light source and hood; said frame mounted upon the light support frame and pivotally connected thereto.
Claim 9
Dependent Claim
86 words
In the printing plate maker of claim 5, the mounting of said light source including an upright frame adjustably receiving said light source and hood, said frame mounted upon the light support frame and pivotally connected thereto; an angle iron mounted upon said bellows plate along the sides and bottom of said aperture and extending rearwardly thereof to laterally enclose and supportably receive said reflector hood; whereby said light source and hood and its frame may be tilted rearwardly out of registry with said bellows plate.
Claim 10
Dependent Claim
107 words
In the printing plate maker of claim 1, a high intensity light source mounted upon said light support frame and mounting a reflector hood for projecting light into said housing towards said glass frame; an electrical circuit including power means and a timer for activating the light source and controlling its duration; a normally open safety limit switch in said circuit positioned in said body; and a pin on the blanket frame registerable with said limit switch when said blanket and glass frames are upright to complete the electrical circuit to the light source; any forward movement of the glass and blanket frames deactivating said light source.
Claim 11
Dependent Claim
53 words
In the printing plate maker of claim 5, the mounting of said light source including an upright frame adjustably receiving said light source and hood, said frame mounted upon the light support frame and pivotally connected thereto; and detent means on said light support frame normally holding the light frame in upright position.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |