The purpose of the invention is to create such a varistor fuse element, which should within a single housing include both a varistor as well as an electric fuse, wherein said varistor part i.e. a varistor is intended to protect each electric installation against overvoltage impulses and consequently against current strokes, while the fuse is capable …

Legal parties

Inventors (applicants): Mitja Koprivsek
Assignees (initial): ETI Elektroelement d.d. (Izlake, SI)
Agents: Haynes & Boone, LLP (attorney), William B. Nash (attorney), Joe Mencher (attorney)

The application was examined by Kyung Lee (USPTO dept. 2833)


  • 1. A varistor fuse element, comprising: …
  • 2. The varistor fuse element of claim 1 , wherein the weak portion of the melting …
  • 3. The varistor fuse element of claim 2 , wherein a solder electrically connects the melting …

International priority data

SI: P-201000257 / Aug. 26, 2010 (national)

Cited documents


  • Donnola US 6185813 B1 / 29/613, Feb. 1, 2001
  • WO WO 2004/072992 A1, Aug. 1, 2004
  • Coyle US 6211770 B1 / 338/21, Apr. 1, 2001
  • FR 2 629 263 A1, Sep. 1, 1989
  • Kouchich et al. US 4064475 A / 338/20, Dec. 1, 1977
  • Bock US 5596308 A / 338/20, Jan. 1, 1997
  • FR 2629263 A1, Sep. 1, 1989
  • Levinson US 4638284 A / 338/21, Jan. 1, 1987


Brief Description of the Drawings

The invention is described in more detail on the basis of two embodiments, which are shown in the attached drawing, wherein FIG. 1 is a longitudinal cross-section through the first …


Cross-Reference to Related Application

This application is a United States national phase application of co-pending international patent application number PCT/SI2011/000030, filed Jun. 2, 2011, which claims the benefit of Slovenia Application No. P-201000257 filed …

Detailed Description

The object of the invention is a construction concept of product, by which the previously exposed problem has been resolved. The proposed solution is based on a cylindrical fuse 2 and a varistor …

More details about Varistor Fuse Element

Miscellaneous patent data

The assignee classification - a foreign company or corporation, the patent was granted on Aug. 26, 2014, similar classification categories are Extensometer type, Cooling, heating, or ventilating arrangements, electromagnetic holder, Insulation formed and hardened in situ, adapted for coating resistive material on a base, Protecting Structure Spaced From Element or Terminal, Pedal- or treadle-operated, Resistor networks not otherwise provided for, resistive-element dimensions changing in a series of discrete, progressive steps, thick-film techniques, e.g. serigraphy, numbered 13/816,827 (application), the patent is illustrated by 1 drawings, the patent particularly claims a varistor fuse element, comprising…, the applicant's first name is Mitja, and his last name is Koprivsek, the claim number 1 is selected as exemplary, was examined by 2833 USPTO department, the examiner - Kyung Lee, the recorded inventor's name is Mitja Koprivsek, developed by Mitja Koprivsek, originally classified under Voltage surge-responsive or lightning arrester type, the invention is named Varistor Fuse Element, the recorded agent's organization is Haynes & Boone, LLP, the assignee location is Izlake (SI); its company is ETI Elektroelement d.d., the drawings include the following: Longitudinal cross-section through the first, Varistor Fuse Element, claims 1-18 comprise the invention scope, the patent grant was extended by 41 days, the grant number is 08816812, the application was published on Jun. 2, 2011, 2 figures are supplied with the description.

Invention classification information

The invention is classified under voltage responsive, i.e. varistors, Voltage surge-responsive or lightning arrester type, High voltage dissipation, Overvoltage protection resistors, Arresters, Current and / or voltage, current-responsive. The designated search classifications include Voltage surge-responsive or lightning arrester type, Current and / or voltage.

Patent details
Publication number 08816812
Publication date Aug. 26, 2014
Kind code B2
Application number 13/816,827
Application date Jun. 2, 2011
Application type U
Application series code 13
Int. pub. country WO
Int. pub. number WO2012/026888
Int. publication Mar. 1, 2012
Int. filing country WO
Int. filing PCT/SI2011/000030
Filed internationally Jun. 2, 2011
National stage date Apr. 4, 2013
Extension term 41
National classification 338/21
Total number of claims 18
Exemplary claims 1
Number of drawings 1
Number of figures 2
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