Inventors:
Thaddeus S. Wielgos - Des Plaines IL
Richard L. Lauritsen - Hoffman Estates IL
Assignee:
The Singer Company - Stamford CT
International Classification:
H01H 3534
Abstract:
A pressure switch has a solid piston sealed by a Kapseal and O-ring actuating a spring locator to compress a main spring and then a secondary (optional) spring. The locator actuates a slow moving end of a snap switch blade. The slow moving end has a contact which opens a low voltage circuit and then the snap switch end of the blade is actuated to open another circuit. This attains a single pole make make operation with sequencing assured.