Method of making a circuit protector

Details Method of making a circuit protector Method of making a circuit protector

1995-03-23

1997-09-09

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

29619, 29844, 29855, 65 596, 65110, H01H 6902, H05K 506

Patent

active

056643209

ABSTRACT:
A subminiature circuit protector includes a substrate carrying a metal fuse element hermetically sealed in a glass sleeve cartridge. The fuse element may comprise a film deposited on the substrate, or, alternatively a metal strip or wire. Leads extend from opposing ends of the sleeve for connection in a circuit, and a gas is sealed in the sleeve to provide a suitable environment to improve operating lifetime and interrupting capability. A method for making a circuit protector includes placing a substrate carrying a fuse element in a glass sleeve and placing leads in contact with the fuse element. The assembly is heated in the presence of a gas below atmospheric pressure to a temperature sufficient to soften the glass. The pressure is then increased to cause the ends of the glass sleeve to form a hermetic seal about the leads.

REFERENCES:
patent: 2244548 (1941-06-01), Benkleman
patent: 3205562 (1965-09-01), Karalis et al.
patent: 3810068 (1974-05-01), DeLuca
patent: 4016527 (1977-04-01), Francis et al.
patent: 4729852 (1988-03-01), Hata

Affiliated with

Also associated with

Rating

Method of making a circuit protector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making a circuit protector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a circuit protector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-62814