Electronic protection device for use with a fuse mount

Details Electronic protection device for use with a fuse mount Electronic protection device for use with a fuse mount

1990-01-24

1991-12-10

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

361103, 361 59, 340664, H02H 504

Patent

active

050723278

ABSTRACT:
An electronic protection device without moving parts uses an automatically-resetting overcurrent protection element, such as positive temperature coefficient device, and keeps its alarm contact terminal constantly in contact with the alarm contact point of a fuse mount. A coil spring is used not to move the alarm terminal but merely to constantly hold the alarm terminal in contact with the alarm point of the fuse mount. A transistor in the electric protection device has its base bias determined by the state of the overcurrent protection element, and has one of its other leads connected to the alarm terminal to generate thereat signals representative of the state of the overcurrent protection element without moving the alarm terminal.

REFERENCES:
patent: H248 (1987-04-01), Middlebrooks
patent: 3158713 (1964-11-01), Margulies
patent: 3781839 (1972-01-01), Bodge
patent: 3936700 (1976-02-01), Reiter
patent: 4015171 (1977-03-01), Miller
patent: 4101862 (1978-07-01), Takagi et al.
patent: 4189698 (1980-02-01), Hara
patent: 4281307 (1981-07-01), Hara
patent: 4514723 (1985-04-01), Leal
patent: 4562454 (1985-12-01), Schultz et al.
patent: 4661807 (1987-04-01), Panaro
patent: 4691197 (1987-09-01), Damiano et al.
patent: 4712081 (1987-12-01), Bosley
No. 70 Type Fuses, Spec sheet, Western Electric Co., Inc., (2-28-78).
PolySwitch.RTM. PTC Device, Spec sheet, Raychem Corporation (07-07-89).

Affiliated with

Also associated with

Rating

Electronic protection device for use with a fuse mount does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic protection device for use with a fuse mount, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic protection device for use with a fuse mount will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1044924