×

Stay-awake alarm

  • US 3,903,514 A
  • Filed: 10/03/1973
  • Issued: 09/02/1975
  • Est. Priority Date: 10/03/1973
  • Status: Expired due to Term
First Claim
Patent Images

1. An alarm for detecting deviations in body movements of an operator of a vehicle from a normal predetermined upright sitting position while sitting on a seat of the vehicle, the alarm comprising support means adapted to be rested on a portion of a vehicle seat proximate and behind the back of an operator;

  • a plurality of switch means mounted on said support means for sensing dangerous deviations of the operator'"'"''"'"'s body from said predetermined upright sitting position, the operator'"'"''"'"'s body normally connecting only one of said switch means during operation of the vehicle, said one switch means being actuated only when the driver'"'"''"'"'s back ceases to make contact with the same, and the other of said switch means being distributed about the operator'"'"''"'"'s head and being actuated only when contact is made between the same and the operator'"'"''"'"'s head;

    a manually operable switch connected in series with said one switch means; and

    alarm indicating means connected to said switch means for generating an alarm signal when said manually operable switch is closed and any one of said switch means is actuated to detect a dangerous deviation of the driver'"'"''"'"'s body.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×