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:
Mar. 22, 1988
Filed:
Jan. 27, 1986
Helmut Mueller, Maulbronner, DE;
Beru Ruprecht GmbH & Co. KG, Ludwigsburg, DE;
Abstract
In a glow element with a glow tube (30) closed at the outer end, in which there at least two series-connected resistors (10, 11), whereby one of the at least two resistors being conductively connected by one end to the closed end of the glow tube and the opposite end of the series-connected resistors being connected to an internal pole (9) projecting into the glow tube from the other end thereof, in order to permit an external wiring of part of the resistors in the glow element, the internal pole (9) has a tubular construction and at least one electrical conductor (8) is passed through the internal pole and is connected to a junction (12) of the at least two resistors (10, 11). Furthermore, the at least two resistors comprise a heating resistor (11) electrically connected to the closed end (14) of the glow tube (30) and a variable resistor (10) with a positive temperature coefficient electrically connected between the internal pole (9) and the heating resistor (11), and wherein a further variable resistor (R3) with a positive temperature coefficient is arranged externally of the glow element and is electrically connected to the electric conductor (8) parallel to the variable resistor (10) of the series-connected resistors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile