US3627416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twin-exposing machine
Assignee: Nuarc Co
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Filing: 1969-10-02
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Granted: 1971-12-14
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Expires: 1989-10-02
Abstract
Abstract A twin-exposure machine for use in chemical milling, printed circuit work, photographic plates and the like. The twin-exposing machine includes a cabinet containing one or more light sources. A generally horizontally extending track extends through opposite ends of the cabinet and a pair of printing frames is each mounted for travel on the track between a first exposing position within the cabinet and a second position out of the cabinet. Thus one frame may be loaded while the other is being exposed. The frame that is ready for exposure is pushed in manually and a circuit is closed which readies the exposure lights. Upon completion of the exposure, the frame is retracted automatically from the exposure position.
Inventors
- 👤 Harold R Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:53
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/04; G03B27/14; G03B27/18; G03B27/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
67 words
A twin-exposing machine for use in exposing sensitized materials and the like comprising: a cabinet; light source means mounted in said cabinet; track means extending generally horizontally entirely through said cabinet and out opposite ends thereof; and a pair of separately manipulated printing frames each mounted for travel on said track between a first exposing position within said cabinet and a second position out of said cabinet.
Claim 2
Dependent Claim
67 words
A twin-exposing machine for use in exposing sensitized materials and the like comprising: a cabinet; light source means mounted in said cabinet; track means extending generally horizontally entirely through said cabinet and out opposite ends thereof; and a pair of separately manipulated printing frames each mounted for travel on said track between a first exposing position within said cabinet and a second position out of said cabinet.
Claim 3
Dependent Claim
30 words
An exposing machine as set forth in claim 1 wherein said light source means includes a pair of exposing lamps respectively mounted within said cabinet above and below said track.
Claim 4
Dependent Claim
31 words
An exposing machine as set forth in claim 2 including means for energizing one of said lamps to exposing level and for energizing both of said lamps simultaneously to exposing level.
Claim 5
Dependent Claim
24 words
An exposing machine as set forth in claim 1 including means for automatically retracting a frame from exposing position upon completion of exposure thereof.
Claim 6
Dependent Claim
129 words
A twin exposing machine for use in exposing sensitized materials and the like comprising: a cabinet; track means extending generally horizontally through said cabinet and out opposite ends thereof; a pair of printing frames each mounted for travel on said track between a first exposing position within said cabinet and a second position out of said cabinet in opposed directions; light source means including a pair of exposing lamps respectively mounted within said cabinet above and below said exposing position; retracting means for retracting a frame from said exposing position; power supply means for energizing said light source means to an exposing level for an exposure period of time; and means operatively connected to said power supply means for actuating said retracting means upon expiration of said exposure period.
Claim 7
Dependent Claim
129 words
A twin exposing machine for use in exposing sensitized materials and the like comprising: a cabinet; track means extending generally horizontally through said cabinet and out opposite ends thereof; a pair of printing frames each mounted for travel on said track between a first exposing position within said cabinet and a second position out of said cabinet in opposed directions; light source means including a pair of exposing lamps respectively mounted within said cabinet above and below said exposing position; retracting means for retracting a frame from said exposing position; power supply means for energizing said light source means to an exposing level for an exposure period of time; and means operatively connected to said power supply means for actuating said retracting means upon expiration of said exposure period.
Claim 8
Dependent Claim
39 words
An exposing machine as set forth in claim 5 including means operatively associated with said light source means for maintaining said light source means at a reduced standby intensity level at times other than said exposure periods of time.
Claim 9
Dependent Claim
73 words
A twin-exposing machine for use in exposing sensitized materials and the comprising: a cabinet; light source means mounted in said cabinet; track means extending entirely through said cabinet; and a pair of printing frames each mounted for travel on said track means between a first exposing position within said cabinet and a second position out of said cabinet, each of said frames being mounted for movement out of said cabinet in opposed directions.
Claim 10
Dependent Claim
73 words
A twin-exposing machine for use in exposing sensitized materials and the comprising: a cabinet; light source means mounted in said cabinet; track means extending entirely through said cabinet; and a pair of printing frames each mounted for travel on said track means between a first exposing position within said cabinet and a second position out of said cabinet, each of said frames being mounted for movement out of said cabinet in opposed directions.
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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |