×

ORIENTATION INDICATING APPARATUS

  • US 3,863,067 A
  • Filed: 07/23/1973
  • Issued: 01/28/1975
  • Est. Priority Date: 07/24/1972
  • Status: Expired due to Term
First Claim
Patent Images

1. Orientation indicating apparatus for applying to a member to indicate when the member is in a chosen orientation, said apparatus including:

  • radiation modulating means having a chamber charged with modulating liquid defining an orientation bubble movable therein according to the orientation of the modulating means, radiation emitting means positioned to emit radiation into said chamber so as to impinge on said bubble depending on the orientation of the modulating means, and radiation receiving means including radiation detecting means positioned to receive radiation deflected laterally by said bubble and said receiving means being arranged to generate an identification signal when the radiation received from the bubble is at a maximum intensity;

    the arrangement and placement of the emitting means and detecting means relative to the modulating means being such that when the member is in the chosen orientation, radiation from the emitting means passes through the modulating liquid, impinges on a near boundary of the bubble, and is deflected laterally thereby so as to be received with maximum intensity by the detecting means thus producing the identification signal.

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