×

Door control switching device

  • US 4,429,490 A
  • Filed: 03/01/1982
  • Issued: 02/07/1984
  • Est. Priority Date: 03/01/1982
  • Status: Expired due to Term
First Claim
Patent Images

1. In a door control switching device for a door panel hinged to rotate in a door frame and having a shaft rotatable about an axis and interconnected with said panel and said frame for rotation of said shaft into rotary positions corresponding to the rotary positions of the door panel in the door frame and having means incorporating a controlling switch contact for rotating said panel relative to said frame, the combination of a hub projecting eccentrically from said shaft, an arm having opposite ends, and means disposing one of said ends frictionally engaging said hub for movement of one of said ends in an orbital path relative to said shaft axis and disposing the other of said ends freely alongside said switch for arcuate movement directly toward and away from abutment with said switch contact and for another movement normal to said arcuate movement and transversely across said switch contact between a first position and a second position.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×