Registers – Calculators – Input-output calculator to indicator – printer – etc.
Patent
1996-11-18
1999-03-23
Gross, Anita Pellman
Registers
Calculators
Input-output calculator to indicator, printer, etc.
235145R, 235 58PS, 364424, 34030915, 340439, G06F 2900, G06F 700, G06C 702, G08B 100
Patent
active
058863311
ABSTRACT:
An electronic calculator for determining truck driver log book values including a liquid crystal display. Also included is a conventional numeric keypad having a matrix of numeric keys for allowing the entering of value signals representative of whole numbers upon the successive depression of the numeric keys and subsequent depression of an enter key. Finally, control circuitry is adapted to store a value signal representative of the number of hours a truck driver worked during a day, to display on the liquid crystal display a date corresponding to the day, to display the liquid crystal display the hours the truck driver worked during the day, to automatically calculate and display on the liquid crystal display a sum of the hours worked by the driver during a first amount of previous days, to automatically calculate and display on the liquid crystal display a maximum of allowable working hours minus the sum of the hours worked by the driver during the first amount of previous days, and to automatically calculate and display on the liquid crystal display a sum of the hours worked by the driver during a second amount of previous days.
REFERENCES:
patent: 3851720 (1974-12-01), Williams, Jr.
patent: 3974568 (1976-08-01), Linderman
patent: 4545022 (1985-10-01), Hughins
patent: 4916827 (1990-04-01), Rayburn
patent: 5184303 (1993-02-01), Link
patent: 5633622 (1997-05-01), Patterson
Cyr Daniel St.
Gross Anita Pellman
LandOfFree
Electronic calculator for determining truck driver log book valu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electronic calculator for determining truck driver log book valu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic calculator for determining truck driver log book valu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2128437