U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Tachograph for motor vehicles

Patent 4644368 Issued on February 17, 1987. Estimated Expiration Date: Icon_subject February 14, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3792445

Monitoring and recording system for vehicles
Patent #: 4067061
Issued on: 01/03/1978
Inventor: Juhasz

Electronic tachograph
Patent #: 4083052
Issued on: 04/04/1978
Inventor: Metcalf

Time clock device
Patent #: 4170015
Issued on: 10/02/1979
Inventor: Elliano ,   et al.

Vehicle monitoring and recording system
Patent #: 4258421
Issued on: 03/24/1981
Inventor: Juhasz ,   et al.

Moving vehicle monitoring system Patent #: 4395624
Issued on: 07/26/1983
Inventor: Wartski

Inventor

Application

No. 06/830517 filed on 02/14/1986

US Classes:

346/33D, Speed340/439, Operation efficiency (e.g., engine performance, driver habits)346/104, Card or leaf record receiver346/53, With clock time index-and-dial or character recorder346/60, And register character recorder701/35With data recording device

Examiners

Primary: Hartary, Joseph W.

Attorney, Agent or Firm

International Classes

G07C 5/08 (20060101)
G07C 5/00 (20060101)
G01P 1/00 (20060101)
G01P 1/12 (20060101)

Foreign Application Priority Data

1985-02-14 DE

Abstract

The disclosed tachograph writes work data for motor vehicle work into a microprocessor-controlled EEPROM semiconductor memory mounted on a movable data card carried by the driver. A printing device prints out the content of a data card memory in the form of a tabular drive record in plain language. The face of the tachograph includes receiving slots located next to one another for the data cards of a driver and a co-driver, as well as a line display for guiding the driver as to how to key in information. A front slot in the face of the tachograph receives an unimprinted paper sheet. Two keys enter the work times, while the functions concerning the print-out of the driving record are controllable with a keyboard on the basis of information on the line display.

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