Metal working – Method of mechanical manufacture – Electrical device making
Patent
1993-05-13
1994-09-13
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
H01H 1100
Patent
active
053456718
ABSTRACT:
The present invention includes a sensing edge for controlling movement of a door by actuation of a device upon force being applied to the sensing edge. The sensing edge includes a base member for being secured to the leading edge of a door and a sheath having a plurality of internal cavities extending therethrough for receiving a switch comprising two electrical contacts. The sensing edge assists in providing a failsafe feature for detecting electrical problems (such as open circuits) in the electrical contacts. According to one embodiment of the present invention, the failsafe feature is achieved using an electrical connector, positioned within the sheath, which electrically connects the electrical contacts. A method of making the sensing edge includes coextrusion of the base member and sheath. During the coextrusion process, electrical contacts are positioned within and bonded to the sheath. Electrical wiring may also be positioned within one or more cavities within the sheath during the coextrusion process.
REFERENCES:
patent: 3462885 (1969-08-01), Miller
patent: 3693026 (1972-09-01), Miller
patent: 3754176 (1973-08-01), Miller
patent: 3843475 (1974-10-01), Kent
patent: 3855733 (1974-12-01), Miller
patent: 3867595 (1975-02-01), Ramsey et al.
patent: 4045631 (1977-08-01), Dann
patent: 4051336 (1977-09-01), Miller
patent: 4080519 (1978-03-01), Michalson
patent: 4115952 (1978-09-01), French
patent: 4200777 (1980-04-01), Miller
patent: 4273974 (1981-06-01), Miller
patent: 4317970 (1982-03-01), Hafner et al.
patent: 4349710 (1982-09-01), Miller
patent: 4785143 (1988-11-01), Miller
patent: 4972054 (1990-11-01), Miller et al.
patent: 5066835 (1991-11-01), Miller et al.
patent: 5079417 (1992-01-01), Strand
patent: 5148911 (1992-09-01), Miller et al.
Echols P. W.
Miller Edge, Inc.
LandOfFree
Process of making a sensing edge with a failsafe sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process of making a sensing edge with a failsafe sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of making a sensing edge with a failsafe sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1111499