Electrical brush-wear indicator

Aeronautics and astronautics – Aircraft structure – Ice prevention

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

310245, B64D 1512

Patent

active

055096255

ABSTRACT:
A monitoring system is disclosed to automatically indicate excessive wear of electrical brushes in deicer assemblies for aircraft. In the preferred embodiment, the indicator system includes an electrical brush with an initially insulated wire embedded in it; and an electrical detection circuit, connected to the brush, with a warning device such as a light. When the brush becomes worn, through excessive "end wear" and/or "flank wear", the insulated wire becomes exposed and eventually stripped at the point of wear. This creates a conductive path from the electrical brush, through the bare wire spot, to the detection circuit. This turns on the warning device to indicate that the brush has become worn and needs replacement.

REFERENCES:
patent: 3908142 (1975-09-01), Gaudry
patent: 4316186 (1982-02-01), Purdy et al.
patent: 4542374 (1985-09-01), Kollmannsberger
patent: 4636778 (1987-01-01), Corkran et al.
patent: 4652783 (1987-03-01), Cheesmore
patent: 4837920 (1989-06-01), Sweet et al.
patent: 5020741 (1991-06-01), Ziegler et al.
patent: 5131812 (1992-07-01), Boyd 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

Electrical brush-wear indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrical brush-wear indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical brush-wear indicator will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2303648

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