Protective device in electrically-powered apparatus and equipmen

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

361 50, 361 49, 307326, H02H 316

Patent

active

053412664

ABSTRACT:
A protective device for an externally powered electrical apparatus is disclosed. The protective device is designed to prevent accidental electrocution of the user if the power supply is subject to a short circuit. The protective device is an electromechanical device incorporating a device for detecting current differentials between non-ground electrical conductors, a normally closed switch in association with a fuse device, and a trigger circuit for terminating the current flow through the electrical apparatus when a short circuit is detected.

REFERENCES:
patent: 2863021 (1958-12-01), Green
patent: 3407840 (1968-10-01), Finnegan
patent: 3525902 (1970-08-01), Davidson et al.
patent: 3535590 (1970-10-01), Mayer
patent: 3629766 (1971-12-01), Gould, Jr.
patent: 3728583 (1973-04-01), Wickson
patent: 3770002 (1973-11-01), Brown
patent: 3875431 (1975-04-01), Kapp
patent: 3948143 (1976-04-01), Olsen
patent: 3997818 (1976-12-01), Bodkin
patent: 4023072 (1977-05-01), Plasko
patent: 4044244 (1977-08-01), Foreman et al.
patent: 4085397 (1978-04-01), Yagher, Jr.
patent: 4103319 (1978-07-01), Crain et al.
patent: 4112312 (1978-09-01), McGalliard
patent: 4124835 (1978-11-01), Cahill, Jr.
patent: 4263576 (1981-04-01), Murata et al.
patent: 4270158 (1981-05-01), Gilardoni et al.
patent: 4328387 (1982-05-01), Kemble
patent: 4438477 (1984-03-01), Cawley
patent: 4464582 (1984-08-01), Aragaki
patent: 4477857 (1984-10-01), Crocker
patent: 4484243 (1984-11-01), Herbst et al.
patent: 4567456 (1986-01-01), Legatti
patent: 4589047 (1986-05-01), Gaus et al.
patent: 4685021 (1987-08-01), Kortschinski et al.
patent: 4709293 (1987-11-01), Gershen et al.
patent: 4751603 (1988-06-01), Kwan
patent: 4829390 (1989-05-01), Simon
patent: 4931894 (1990-06-01), Legatti
patent: 5019935 (1991-05-01), Nakamura
patent: 5115367 (1992-05-01), Gaus et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Protective device in electrically-powered apparatus and equipmen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Protective device in electrically-powered apparatus and equipmen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protective device in electrically-powered apparatus and equipmen will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-507068

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.