The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2002
Filed:
Nov. 24, 1999
Franz-Josef Arping, Hamburg, DE;
Wolfgang Heinrich Grothe, Buchholz, DE;
Berthold Hacker, Goldbach, DE;
Still GmbH, , DE;
Abstract
An industrial truck is provided with a direct current power supply and at least one electrical user ( ), e.g., a lighting device located in a housing, wherein the power supply voltage of the power supply ( ) is greater than the nominal voltage of the user ( ). To connect the user ( ) to the power supply, there is a voltage transformer ( ) which is located inside the housing or in the immediate vicinity of the housing. The invention also relates to a voltage transformer which applies a power supply voltage to a user ( ) in pulses, so that the power delivered to the user, as an average over time, does not exceed the nominal power of the user ( ).