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APPARATUS FOR SURVEYING AND INDICATING THE PHYSICAL EFFORT OF AN INDIVIDUAL

  • US 3,863,626 A
  • Filed: 12/13/1972
  • Issued: 02/04/1975
  • Est. Priority Date: 09/07/1972
  • Status: Expired due to Term
First Claim
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1. Apparatus for surveying the physical efforts of a person, said apparatus comprising pulse sensing means, means for generating impulses in response to outputs from said pulse sensing means, first and second monostable multivibrators having means for separately adjusting their respective delay times for establishing high and low limit frequencies and being connected to be actuated by said impulses, first and second gate circuit means each having a first input connected to receive said impulses and each having a second input connected, respectively, to an output of said first and second monostable multivibrators, a signally means andd means connecting said signalling means for adjustment of same according to the outputs from either of said gate circuits, said monostable multivibrators including means for maintaining both said gate circuits closed for the duration between their respective delay times.

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