US3673955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means detecting non-rebailed print hammers to recycle the bailing means
Assignee: Data 100 Corp
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Filing: 1970-07-22
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Granted: 1972-07-04
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Expires: 1990-07-22
Abstract
Abstract A printer is disclosed having a number of hammers aligned along a transverse axis which hammers are in a cocked position awaiting a print signal, means for simultaneously bailing all hammers not in the cocked position into such position and electrooptical means having an optical axis parallel with the transverse axis of the hammers for detecting if any one or more of the hammers have not been cocked.
Inventors
- 👤 Robert H Curtiss
- 👤 Richard Holzman
- 👤 Seldan A Lazarow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:26
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/44; B41J9/52
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
The printer of claim 1 wherein said detecting means is coupled to means for deactivating said printer if any one of said hammers is not in said first position after a bailing cycle. 3 The printer of claim 2 wherein said detecting means is coupled to means for reactivating said means for repositioning if any one of said hammers is not in said first position after a bailing cycle and said detecting means is coupled to said deactivating means for deactivating said printer after said moving means has been reactivated N times, where N is any positive integer.
Claim 2
Dependent Claim
45 words
The printer of claim 7 wherein said optical generating means includes a source of radiation and said detecting means an electro-optical transducer to receive said radiation whereby said radiation is blocked by at least one of said hammers which is not in said first position.
Claim 3
Dependent Claim
25 words
The printer of claim 4 wherein a collimating lens is placed along said optical path between said source and said transducer proximate to said source.
Claim 4
Dependent Claim
22 words
The device of claim 5 wherein said source of radiation is a light emitting diode and said transducer is a photo cell.
Claim 5
Dependent Claim
23 words
The printer of claim 10 wherein said optical generating means is momentarily gated on after activation and reactivation of said means for repositioning.
Claim 6
Dependent Claim
16 words
The printer of claim 7 wherein said first position of said hammers is a cocked position.
Claim 7
Dependent Claim
13 words
The printer of claim 8 wherein said second position is a rest position.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |