Thermosensitive fuse
US4384267A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1981 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Jul 6, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H37/765
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A thermosensitive fuse includes a cylindrical metallic casing having one end closed and the other end opened. The closed end of the casing is connected with a first conductor that extends outwardly from the casing and the opened end is fittingly mounted with a bushing carrying a second conductor. One end of the second conductor projects into the casing and the other end extends outwardly from the casing. Provided in the casing are an organic substance of solid state from the bottom of the casing to an intermediate level thereof, a contact member of slanted cylinder having a diameter smaller than the inner diameter of the casing, a first spring extending between the organic substance and one end of the contact member in a compressed manner, and a second spring, which is weaker than the first spring, extending between the projected end of the conductor and the other end of the contact member in a compressed manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.