Henry E Molvar

US Patent:

51936690, Mar 16, 1993

Filed:

Feb 28, 1991

Appl. No.:

7/661375

Inventors:

Gregory B. Demeo - Lydeborough NH
Henry E. Molvar - Chelmsford MA
David R. Bergerson - Francestown NH

Assignee:

Lucas Industries, Inc. - Reston VA

International Classification:

H01H 110

US Classification:

200512

Abstract:

A switch assembly comprising a housing, a rigid operating member mounted for movement relative to the housing and accessible to an operator, an electrical contact operable by movement of the operating member from a rest position to an operative position relative to the housing, a flexible seal between the operating member and the electrical contact and capable of transmitting operative movement of the operating member to the contact while preventing passage of moisture and other contaminants from the region of the operating member to the contact, and, a limit preventing movement of the operating member relative to the contact beyond the position at which the contact is operated. The switch can include further operating members and associated contacts and limits carried by the housing and if desired the assembly can incorporate a heater for heating the operating member region of the assembly.