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Class 337/114 - Expansible or vaporizable fluid-actuated (e.g., mercury vapor)


Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter wherein the electrothermal responsive circuit
No. of patents: 8
Last issue date: 01/13/1998


NumberTitleIssue Date
5708553Automatic switching-off structure for protecting electronic device from burning
An electronic device integrally formed with an automatic switching-off structure for protecting the device from overheating. At least one conducting lead of the electronic device is mechanically and electrically connected to its corresponding electrode by...
01/13/1998
4622533Self-recovery type current limiting element
A self-recovery type current limiting element for suppressing overcurrent conditions and capable of recovering so as to be operated under normal current conditions including two identical element cylinders coupled therebetween by a coupler. A series of an...
11/11/1986
4281307Thermal cut-off fuse
A thermal cut-off fuse of a self-restoring type, which breaks the electric continuity between a pair of lead wires in response to melting and voluminal expansion of a temperature-sensitive member upon rise of the ambient temperature to a prescribed temper...
07/28/1981
4227170Current-reducing device
A current-reducing device (fuse or switch) is described comprising a foil mber of Al or Mg which is immersed in a fluid with which it will chemically react (such as H2 O or H2 O2) above a certain temperature. The foil memb...
10/07/1980
4216456Current limiting apparatus
A current limiting apparatus comprises a current limiter and cooling fins formed on each current terminal of the current limiter, and additional cooling fins fitted on a cylindrical tube of the current limiter near a heat generating source....
08/05/1980
4024488Self-restoring type current limiting device
One electrode is rigidly fitted into a hollow metallic cylinder and the other electrode is coaxially fixed within the cylinder through a cylindrical insulation. An insulating disc is opposite to the cylindrical insulation to form them an annular arrow gap...
05/17/1977
3991396Electric circuit protector comprising parallel-connected liquid-metal current-limiting devices
A liquid-metal circuit protector comprises two liquid-metal current limiting devices electrically connected in parallel with each other. Each current limiting device comprises a pair of spaced terminals and a passageway extending between said terminals an...
11/09/1976
3987388Current limiting device
A current limiting device includes a duct containing a current-limiting material therein which serves to interconnect two spaced terminals but which is evaporable when subjected to an over-current flowing through the material between the terminals. The wa...
10/19/1976
 
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