US4129380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copy apparatus using chemical flashlamp
Assignee: FLOWIL INTERNATIONAL (HOLDING) BV
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Filing: 1977-05-13
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Granted: 1978-12-12
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Expires: 1997-05-13
Abstract
Abstract A portable low-cost copier comprises a housing having a bottom surface at which a photosensitized sheet and an original can be disposed. Disposed within the housing is a chemical flashlamp which is ignited to make the copy.
Inventors
- 👤 Timothy Fohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:19
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
99 words
In a low cost portable copier of the type having a housing and a bottom surface at which a photosensitized sheet and an original can be disposed, and a pulse type flashlamp disposed within the housing so that radiant energy therefrom can be directed toward the photosensitized sheet and original, the improvement which comprises said flashlamp being a chemical flashlamp containing a combustible material and a combustion supporting means, and the copier having ignition means for flashing the flashlamp, said ignition means comprising a mechanically actuated lamp-striker spring which can be deflected and then released to ignite the flashlamp.
Claim 2
Dependent Claim
99 words
In a low cost portable copier of the type having a housing and a bottom surface at which a photosensitized sheet and an original can be disposed, and a pulse type flashlamp disposed within the housing so that radiant energy therefrom can be directed toward the photosensitized sheet and original, the improvement which comprises said flashlamp being a chemical flashlamp containing a combustible material and a combustion supporting means, and the copier having ignition means for flashing the flashlamp, said ignition means comprising a mechanically actuated lamp-striker spring which can be deflected and then released to ignite the flashlamp.
Claim 3
Dependent Claim
14 words
The copier of claim 1 wherein said flashlamp has a primer tube extending therefrom.
Claim 4
Dependent Claim
17 words
The copier of claim 2 wherein the ignition means is adapted to mechanically strike said primer tube.
Claim 5
Dependent Claim
14 words
The copier of claim 1 wherein said flashlamp has two lead-in wires extending therefrom.
Claim 6
Dependent Claim
13 words
The copier of claim 4 wherein the ignition means includes a piezoelectric crystal.
Claim 7
Dependent Claim
32 words
The copier of claim 5 wherein the ignition means also includes a striker adapted to strike the piezoelectric crystal which can deliver a high voltage pulse to, and thereby ignite, the flashlamp.
References Cited (Backward Citations)
US2301675A
Cited
US2726317A
Cited
US3173746A
Cited
US3358476A
Cited
US3528354A
Cited
US3584554A
Cited
US3776686A
Cited
US3665176A
Cited
US3904292A
Cited
US4008040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |