US3650205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Serial number printing machines
Assignee: Individual
•
Filing: 1970-02-25
•
Granted: 1972-03-21
•
Expires: 1990-02-25
Abstract
Abstract Machine having means for printing serial numbers and means for printing check digits. The check digit printer is controlled by means including counting means having one counting unit for each digit of the serial number to be printed, the advancement of a counting unit transmitting pulses to operate the check digit printer. The means for controlling the check digit printer may be electromechanical or electronic. The counting units may be coldcathode gas filled decade counters.
Inventors
- 👤 Patrick S Wybrow
- 👤 Philip Muzlish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:10
CPC Classifications
B; B41; B41F; B41F33/00; B41F33/02; B41F33/025; B41F33/009; G; G06; G06F; G06F11/00; G06F11/07; G06F11/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
140 words
In a printing machine having means for printing a sequence of serial number digits and means for printing a check digit associated with each serial number, control means comprising: means for computing said check digits for each said serial number as it is printed, said means including multi-unit counting means having one counting unit for each digit of said printed serial number, means for advancing said counting units in synchronization with the operation of said serial number digit printing means, means for advancing the individual check digits in accordance with the state of said multi-unit counting means; means for transmitting from each counting unit a predetermined number of pulses to said means for advancing said check digits, and means for selecting an individual transmission means associated with the most advanced of said counting units in a serial number printing cycle.
Claim 2
Dependent Claim
140 words
In a printing machine having means for printing a sequence of serial number digits and means for printing a check digit associated with each serial number, control means comprising: means for computing said check digits for each said serial number as it is printed, said means including multi-unit counting means having one counting unit for each digit of said printed serial number, means for advancing said counting units in synchronization with the operation of said serial number digit printing means, means for advancing the individual check digits in accordance with the state of said multi-unit counting means; means for transmitting from each counting unit a predetermined number of pulses to said means for advancing said check digits, and means for selecting an individual transmission means associated with the most advanced of said counting units in a serial number printing cycle.
Claim 3
Dependent Claim
17 words
The printing machine as set forth in claim 1 wherein said counting units are electronic counting units.
Claim 4
Dependent Claim
18 words
The printing machine as set forth in claim 2 wherein said counting units are cold-cathode gas-filled decade counters.
Claim 5
Dependent Claim
31 words
The printing machine as set forth in claim 2 further comprising a visual display controlled by each of said counting units for indicating the number held by each said counting unit.
Claim 6
Dependent Claim
63 words
The printing machine as set forth in claim 1 further comprising a pulse generator and wherein each transmission means provides a path for the passage of pulses from said pulse generator to said means for advancing the individual check digits with the advancement of the associated counting unit until a predetermined number of pulses has passed and said transmission means opening said path.
Claim 7
Dependent Claim
39 words
The printing machine as set forth in claim 5 further comprising a pulse counter and wherein each transmission means includes a bistable circuit for interrupting said path after the pulse counter has counted the said predetermined number of pulses.
Claim 8
Dependent Claim
46 words
The printing machine as set forth in claim 6 further comprising a plurality of AND gates and wherein said pulse generator and each of said bistable circuits is connected to an AND gate having an output connected to said means for advancing the individual check digits.
Claim 9
Dependent Claim
29 words
The printing machine as set forth in claim 7 further comprising an OR gate and wherein said bistable circuits are connected to said AND gate through said OR gate.
Claim 10
Dependent Claim
32 words
The printing machine as set forth in claim 1 wherein said selection means includes means for deactivating a signal from each of said counting units other than said most advanced counting unit.
Claim 11
Dependent Claim
48 words
The printing machine as set forth in claim 9 wherein said deactivation means comprises, for each counting unit other than the highest order counting unit, an additional AND gate having an input connected to the output of each of said AND gates associated with the higher counting units.
Claim 12
Dependent Claim
51 words
The printing machine as set forth in claim 10 further comprising a delay element between each of said counting units and its associated AND gate with the exception of the highest order counting unit, the length of delay of said elements decreasing progressively from the lowest towards the highest counting unit.
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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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |