US3875577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette with integral electrode for marking electric recording paper contained therein
Assignee: ALFAX PAPER & ENGINEERING COMPANY Inc
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Filing: 1973-09-10
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Granted: 1975-04-01
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Expires: 1993-09-10
Abstract
Abstract A cassette in an electrolytic graphic recorder has thin plastic walls forming a compartment for a supply roll of moist electrolytic recording web and an integral flattened tube extending to a web exit slit. The walls of the tube are spaced by approximately the thickness of the web which therefor moisture seals the supply compartment. An L-shaped blade electrode attached on top of the tube has a recording edge extending across the exit slit into opposition with a scanner with which it cooperates to record on the web as it is drawn from the supply compartment through the exit and between the electrode and scanner. Register means on the recorder engage terminal portions of the cassette electrode and position the electrode in opposition to the scanner as well as electrically connecting the electrode to a marking signal terminal on the recorder.
Inventors
- 👤 John M Alden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:20
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/12; H04N1/14; H04N1/23
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
A cassette adapted to be detachably mounted in a recorder, the recorder having a terminal carrying an electrical signal to be marked on a moist recording web in a recording zone defined by the recorder, the cassette comprising: a housing forming a supply compartment for moist recording web and an opening for the web at the recording zone, and an electrically conductive linear electrode attached to the housing at the opening, the electrode being formed with a recording edge parallel to the opening and with a terminal portion mechanically and electrically connected to the recording edge and shaped to detachably engage the signal terminal member on the recorder and positively to position the electrode with respect to the terminal member and recording zone and maintain electrical contact between the linear electrode and terminal member.
Claim 2
Dependent Claim
134 words
A cassette adapted to be detachably mounted in a recorder, the recorder having a terminal carrying an electrical signal to be marked on a moist recording web in a recording zone defined by the recorder, the cassette comprising: a housing forming a supply compartment for moist recording web and an opening for the web at the recording zone, and an electrically conductive linear electrode attached to the housing at the opening, the electrode being formed with a recording edge parallel to the opening and with a terminal portion mechanically and electrically connected to the recording edge and shaped to detachably engage the signal terminal member on the recorder and positively to position the electrode with respect to the terminal member and recording zone and maintain electrical contact between the linear electrode and terminal member.
Claim 3
Dependent Claim
63 words
A cassette according to claim 1 wherein the housing supply compartment contains a roll of moist electrolytic recording web and comprises walls forming a flat tube extending from the compartment providing a web path to the opening, the tube walls being spaced apart substantially the thickness of the web so that the web forms a moisture retaining barrier for the moist web roll.
Claim 4
Dependent Claim
45 words
A cassette according to claim 1 wherein said electrode comprises a continuous elongate metal strip attached to the exterior of the housing with the terminal portion extending laterally beyond the opening, and register means on the terminal portion shaped to engage the signal terminal member.
Claim 5
Dependent Claim
27 words
A cassette according to claim 3 wherein the electrode comprises a strip disposed above the opening and the register means comprises an aperture transverse of the opening.
Claim 6
Dependent Claim
39 words
A cassette according to claim 3 wherein the electrode comprises a strip folded in approximate L-shape, one arm of the L comprising a recording edge with a terminal portion thereof extending laterally beyond the opening to form register means.
Claim 7
Dependent Claim
27 words
A cassette according to claim 3 wherein the electrode comprises a strip disposed below the opening and the register means comprises an aperture transverse of the opening.
Claim 8
Dependent Claim
37 words
An electric graphic recorder for marking on a moist electric recording web comprising a cassette according to claim 1 and further comprising a signal terminal with register means mating with the terminal portion of the cassette electrode.
Claim 9
Dependent Claim
34 words
A recorder according to claim 7 wherein the recorder comprises scanning means disposed on the recorder adjacent to the register means, the register means locating the cassette electrode in opposition to the scanning means.
Claim 10
Dependent Claim
34 words
A recorder according to claim 7 further characterized by locking means on the recorder movably engaging the cassette electrode thereby to urge the terminal portion of the electrode into engagement with the register means.
Claim 11
Dependent Claim
34 words
A recorder according to claim 9 wherein the recorder comprises scanning means disposed on the recorder adjacent to the register means, the register means locating the cassette electrode in opposition to the scanning means.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |