US3829215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash copier
Assignee: Ovonic Imaging Systems Inc
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Filing: 1972-05-08
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Granted: 1974-08-13
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Expires: 1992-05-08
Abstract
Abstract A flash copier for making duplicate copies of microfiche cards or the like by a contact printing technique. The unit has a housing containing a high intensity flash lamp to illuminate a window on which the original transparency and a sensitized card or film are placed. A platen mounted on a double hinged arm assembly is lowered onto the window and clamped by cam action in a continuous motion. Clamping pressure is closely adjustable to ensure high definition of copy, and the flash lamp is controlled by a switch which is actuated only at the locked position of the clamping cam mechanism.
Inventors
- 👤 L Smitzer
- 👤 J Amtmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:17
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A flash copier, comprising: a housing having an exposure window mounted therein; a flash lamp in said housing directed to illuminate said window; a platen having a resilient pad for holding film material on said window; a pair of support arms pivotally mounted at one end on said housing and extending on opposite sides thereof, the support arms being interconnected at the pivoted ends; said platen being pivotally suspended between the other ends of said support arms; a pair of clamp arms pivotally connected to said support arms on a common axis with pivotal attachment of said platen, and spaced to pass on opposite sides of said housing; a handle interconnecting said clamp arms; said support arms being biased to raise said platen clear of the window, and said clamp arms being biased upwardly from the support arms; said clamp arms having cam fingers extending therefrom; cam receiving rollers rotatably mounted on said housing; said cam fingers having closed end sockets into which said rollers seat in the locked position of the clamp arms.
Claim 2
Dependent Claim
174 words
A flash copier, comprising: a housing having an exposure window mounted therein; a flash lamp in said housing directed to illuminate said window; a platen having a resilient pad for holding film material on said window; a pair of support arms pivotally mounted at one end on said housing and extending on opposite sides thereof, the support arms being interconnected at the pivoted ends; said platen being pivotally suspended between the other ends of said support arms; a pair of clamp arms pivotally connected to said support arms on a common axis with pivotal attachment of said platen, and spaced to pass on opposite sides of said housing; a handle interconnecting said clamp arms; said support arms being biased to raise said platen clear of the window, and said clamp arms being biased upwardly from the support arms; said clamp arms having cam fingers extending therefrom; cam receiving rollers rotatably mounted on said housing; said cam fingers having closed end sockets into which said rollers seat in the locked position of the clamp arms.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |