US3644931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multistyli recorders with styli cyclically moved through interstylus spacing
Assignee: New Zealand Inventions Development Authority
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Filing: 1969-09-10
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Granted: 1972-02-22
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Expires: 1989-09-10
Abstract
Abstract A multichannel recorder has a series of styli, movable cyclically transversely relative to a sheet of electrosensitive material movable longitudinally, the styli being connected individually to a source of voltage through individual trigger means, triggering of any trigger means causing the voltage to make a dot on the electrosensitive material at the position of the appropriate stylus, the combination of the motion and of the dot resulting in a readable trace appearing on the surface of the electrosensitive material.
Inventors
- 👤 Philip Roland Stringer
- 👤 Eric Charles Gatland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:16
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A method of simultaneously recording numerous inputs of data on an electrosensitive sheet having a longitudinal axis and a transverse axis, said method comprising the steps of moving the sheet longitudinally, oscillating a series of uniformly spaced styli while the styli are continuously in contact with the sheet, the styli being arranged and oscillated in a line transverse to the longitudinal axis of the sheet, the amplitude of oscillation of the styli being approximately equal to the spacing distance between adjacent styli so that each stylus records on a band, the series of bends so formed being parallel to the longitudinal axis of the sheet, and applying short voltage pulses to the sheet so that each pulse marks the sheet with a dot, the relative movement in two directions between the styli and the sheet giving a coherent record across the width and along the length of the sheet.
Claim 2
Independent Claim
149 words
A method of simultaneously recording numerous inputs of data on an electrosensitive sheet having a longitudinal axis and a transverse axis, said method comprising the steps of moving the sheet longitudinally, oscillating a series of uniformly spaced styli while the styli are continuously in contact with the sheet, the styli being arranged and oscillated in a line transverse to the longitudinal axis of the sheet, the amplitude of oscillation of the styli being approximately equal to the spacing distance between adjacent styli so that each stylus records on a band, the series of bends so formed being parallel to the longitudinal axis of the sheet, and applying short voltage pulses to the sheet so that each pulse marks the sheet with a dot, the relative movement in two directions between the styli and the sheet giving a coherent record across the width and along the length of the sheet.
Claim 3
Independent Claim
182 words
An apparatus for simultaneously recording numerous inputs of data on an electrosensitive sheet having a longitudinal axis and a transverse axis, said apparatus comprising a frame, means adapted to move a strip of electrosensitive material on said frame in a lengthwise direction, a plurality of styli arranged in a line transverse to the longitudinal axis of the material and each adapted to apply an electrical impulse to the electrosensitive sheet so as to form a dot thereon, means to oscillate said styli transversely to and while continuously in contact with said sheet, the amplitude of oscillation of the styli being approximately equal to the spacing distance between adjacent styli so that each stylus records on a band, the series of bands so formed being parallel to the longitudinal axis of the sheet, and means adapted to apply electrical pulses through said styli to said electrosensitive material so that each pulse marks the sheet with a dot, the relative movement in two directions between the styli and the sheet giving a coherent record across the width and along the length of the sheet.
Claim 4
Independent Claim
182 words
An apparatus for simultaneously recording numerous inputs of data on an electrosensitive sheet having a longitudinal axis and a transverse axis, said apparatus comprising a frame, means adapted to move a strip of electrosensitive material on said frame in a lengthwise direction, a plurality of styli arranged in a line transverse to the longitudinal axis of the material and each adapted to apply an electrical impulse to the electrosensitive sheet so as to form a dot thereon, means to oscillate said styli transversely to and while continuously in contact with said sheet, the amplitude of oscillation of the styli being approximately equal to the spacing distance between adjacent styli so that each stylus records on a band, the series of bands so formed being parallel to the longitudinal axis of the sheet, and means adapted to apply electrical pulses through said styli to said electrosensitive material so that each pulse marks the sheet with a dot, the relative movement in two directions between the styli and the sheet giving a coherent record across the width and along the length of the sheet.
Claim 5
Dependent Claim
40 words
A recorder as claimed in claim 2 wherein said means to effect transverse movement of said styli comprises a carriage mounting said styli, means mounting said carriage and permitting oscillatory movement thereof, and mechanical means adapted to oscillate said carriage.
Claim 6
Dependent Claim
36 words
A recorder as claimed in claim 2 wherein said longitudinal feed of said electrosensitive material and said oscillatory motion of said styli is driven by a stepping motor supplied by pulses from a suitable power supply.
Claim 7
Dependent Claim
44 words
Apparatus as claimed in claim 2 wherein at least some of said styli are supplied with power under the control of an encoding device including a gate circuit adapted to trigger the supply of power applied to the electrosensitive material at the appropriate instant.
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) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |