US4153365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable copier using flash lamp article
Assignee: FLOWIL INTERNATIONAL (HOLDING) BV
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Filing: 1978-04-05
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Granted: 1979-05-08
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Expires: 1998-04-05
Abstract
Abstract A low-cost, portable copier for exposing a photosensitized sheet through a stencil placed thereon. The sheet and stencil, in the form of a "sandwich", are positioned on the copier's cover member which is then pivoted to a closed position against the copier's housing. A flash lamp article, including a tapered casing having a percussively-ignitable flash lamp therein, is inserted within the housing and activated by a resilient cantilever member located therein.
Inventors
- 👤 George J. English
- 👤 Timothy Fohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:06
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/14; B41C1/148; G; G03; G03B; G03B27/00; G03B27/02; G03B27/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
168 words
A portable copier for exposing a sheet of photosensitized material through a stencil, said copier comprising: a housing defining a chamber therein, said chamber including first and second opposing end portions; a cover member movably oriented on said housing and adapted for forming a closure for said first end portion of said chamber, said cover member adapted for having said photosensitized sheet and said stencil located thereon whereby said sheet and stencil will be positioned adjacent said first end portion of said chamber when said cover member forms said closure therefor; a flash lamp article adapted for being manually positioned within said second end portion of said chamber, said flash lamp article including a casing member and a chemical flash lamp positioned therein; and activation means located within said second end portion of said chamber for activating said chemical flash lamp when said flash lamp article is positioned within said second end portion, the radiant energy from said flash lamp being directed toward said photosensitized sheet and stencil.
Claim 2
Dependent Claim
168 words
A portable copier for exposing a sheet of photosensitized material through a stencil, said copier comprising: a housing defining a chamber therein, said chamber including first and second opposing end portions; a cover member movably oriented on said housing and adapted for forming a closure for said first end portion of said chamber, said cover member adapted for having said photosensitized sheet and said stencil located thereon whereby said sheet and stencil will be positioned adjacent said first end portion of said chamber when said cover member forms said closure therefor; a flash lamp article adapted for being manually positioned within said second end portion of said chamber, said flash lamp article including a casing member and a chemical flash lamp positioned therein; and activation means located within said second end portion of said chamber for activating said chemical flash lamp when said flash lamp article is positioned within said second end portion, the radiant energy from said flash lamp being directed toward said photosensitized sheet and stencil.
Claim 3
Dependent Claim
16 words
The portable copier according to claim 1 wherein said housing and said cover member are plastic.
Claim 4
Dependent Claim
50 words
The portable copier according to claim 1 including an ultraviolet filter located within said first end portion of said chamber, said filter being oriented between said flash lamp article and said photosensitized sheet and stencil when said cover member forms said closure for said first end portion of said chamber
Claim 5
Dependent Claim
20 words
The portable copier according to claim 1 wherein said cover member is pivotally oriented on one side of said housing.
Claim 6
Dependent Claim
22 words
The portable copier according to claim 4 wherein said cover member includes a channel therein for receiving said photosensitized sheet and stencil.
Claim 7
Dependent Claim
48 words
The portable copier according to claim 1 wherein said chemical flash lamp is percussively-ignitable and includes a light-transmitting envelope having a qunatity of combustible material therein and a primer tube projecting from said envelope and through said casing, said activation means adapted for mechanically striking said primer tube.
Claim 8
Dependent Claim
16 words
The portable copier according to claim 6 wherein said activation means comprises a resilient cantilever member.
Claim 9
Dependent Claim
30 words
The portable copier according to claim 7 wherein said casing includes a tapered end portion for pre-energizing said resilient cantilever member prior to said activation of said chemical flash lamp.
References Cited (Backward Citations)
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US3488753A
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US3452196A
Cited
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Cited
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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) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |