DOCTORS REGISTER

• US 3,599,200 A
• Filed: 12/04/1969
• Issued: 08/10/1971
• Est. Priority Date: 12/04/1969
• Status: Expired due to Term

• Current Assignee: Earl L. Bunting
• Original Assignee: Earl L. Bunting
• Inventors: Bunting, Earl L.
• Application Number:
  US04/882,121
• Time in Patent Office: 614 Days
• US Class Current: 340/286.07
• CPC Class Codes: G08B 3/1008 Personal calling arrangements or devices, i.e. paging systems selective calling systems and call receivers H04W84/00, H04W68/00
• CPC Class Codes: G08B 5/36 using visible light sources

Abstract

A doctors register system for hospitals or the like adapted to simultaneously indicate by a signal at a plurality of stations located in different parts of the hospital whether the doctor has checked in or out of the hospital, said system being capable of being actuated from any of the stations each of which has a plurality of units, one for each doctor, with the corresponding units in the stations connected together. Also, means can be provided for altering the character of the signal to provide additional information.

Claims

1. A doctors register comprising a plurality of stations, each having a plurality of signaling units, one for each doctor, said units comprising an electric signal means and including a normally open control switch means, means connecting the signal means of corresponding units at each station in a series circuit connected to a source of DC voltage, a silicon controlled rectifier connected in the series circuit before the last signal means, said silicon controlled rectifier being normally nonconductive and rendering said signal means inoperative, initial operation of any one of the normally open control switch means causing said rectifier to become conductive and said signal means in all stations to become operative and subsequent operation of said normally open control switch means rendering the rectifier nonconductive and said signal means inoperative.

2. The invention as defined in claim 1 wherein means is provided at one station for altering the character of the signal means to give a distinctive signal.

3. The invention as defined in claim 1 wherein said silicon controlled rectifier has an anode, gate and cathode with the anode connected to the cathode through a condenser and also to said normally open switch means with said switch means including a condenser connected to ground, said gate being connected to ground through a resistance, and said cathode connected to ground through a condenser in parallel with the last lamp.