Method of manufacturing a surface-mountable switch having an ope

Details Method of manufacturing a surface-mountable switch having an ope Method of manufacturing a surface-mountable switch having an ope

1997-10-01

1999-12-07

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

29DIG44, 156152, 156286, 1563077, H01H 1100

Patent

active

059962151

ABSTRACT:
An opening which leads inside a surface-moutable switch is sealed by a tape seal, a good seal being maintained even when heat is applied to the switch. A switch body has a top surface and an inner space in which an electrical contact is provided. A switch knob operating the electrical contact provided inside the switch is accessed through the opening. The tape seal seals the opening with an adhesive applied between the tape seal and a top surface of a switch body. A portion of the tape seal directly above the opening is drawn into the opening by a negative pressure in the opening. The surface-mountable switch is manufactured by placing the switch body applied with the tape seal in a vacuum chamber so as to evacuate air surrounding the switch body. The seal for the opening is temporarily broken by an air pressure inside the opening, and the pressure inside the opening becomes a negative pressure with respect to the atmospheric pressure. The portion of the tape seal directly above the opening is drawn into the opening. The switch body applied with the tape seal may be simply heated so that the air inside the opening is expanded. The expanded air is abruptly discharged through an air vent opening formed between the tape seal and the switch body. A negative pressure is generated in the opening to draw the tape seal into the opening, and the opening is hermetically sealed.

REFERENCES:
patent: 4773155 (1988-09-01), Buchien
patent: 4841109 (1989-06-01), Sakakino et al.
patent: 5080155 (1992-01-01), Crozier
patent: 5138518 (1992-08-01), Schmertmann et al.

Affiliated with

Also associated with

Rating

Method of manufacturing a surface-mountable switch having an ope does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing a surface-mountable switch having an ope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing a surface-mountable switch having an ope will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-810169