Switch mechanism with seal

Details Switch mechanism with seal Switch mechanism with seal

2006-07-18

2006-07-18

Friedhofer, Michael (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Actuators

C200S302200

Reexamination Certificate

active

07078639

ABSTRACT:
A switch mechanism embodying the invention comprises a switch head assembly with at least one stationary contact and at least one movable contact carried by an axially movable contact carrier, a cam head assembly, a plunger assembly with a sealing element and a U-shaped yoke. The sealing element comprises a bellows seal having an outer peripheral rim that is trapped between the switch assembly housing and the tulip end of the cam head housing on assembly thereof. The bellows seal further comprises an inner annular part that is over molded onto the plunger body where and has a relieved portion comprising V-shaped troughs and ridges and undercutting in the form of annular grooves that open towards one another. The relieved portion provides a positive connection between the sealing element and the plunger and the tracking path for preventing liquid ingress is increased significantly.

REFERENCES:
patent: 3940585 (1976-02-01), Schaad
patent: 5152540 (1992-10-01), Kuze
patent: 5587569 (1996-12-01), Mohtasham
patent: 5817997 (1998-10-01), Wernig
patent: 6046420 (2000-04-01), DeMoss
patent: 6407653 (2002-06-01), Zindler et al.
patent: 6747225 (2004-06-01), Yu
patent: 6949711 (2005-09-01), Litteer
patent: 1 255 262 (2003-01-01), None
patent: 1 376 632 (2004-01-01), None

Affiliated with

Also associated with

Rating

Switch mechanism with seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switch mechanism with seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switch mechanism with seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3595401