Grounding strap which can be monitored
AssigneeSemtronics Corporation
InventorAlbert C. Breidegam
Life of this patent
Estimating the term…
Abstract
A device for connecting a person to electrical ground comprising a stretchable grounding strap which may be worn on the arm or leg and has two or more sections of conductive material; one or more conductors connecting each section of conductive material to ground and circuitry to actuate warning indicators if any of the sections of conductive material are not contracting the wearer or if the connection between any section of conductive material and ground is open. The circuitry may also actuate an indicator if a safety resistor between a section of conductive material and ground is shorted.
Claims22
A device for connecting a person's body to electrical ground, comprising:
- a. a strap which may be connected to the person's body, comprising at least two electrically conductive sections;
- b. at least two electrically connective means, each for connecting a conductive section of the strap to ground;
- and
- c. circuit means connected to the electrically connective means for actuating a first warning means when any of the conductive sections is not connected to ground and a second warning means when any of the conductive sections is not connected to the person's body.
A device for connecting a person's body to electrical ground, comprising:
- a. a strap which may be connected to the person's body, comprising at least two electrically conductive sections;
- b. at least one electrical path connecting each electrically conductive section of the strap to ground;
- c. a plurality of warning means for providing notification relating to operation of the device;
- and
- d. circuit means for actuating a first of the warning means when electrical resistance of any of the paths connecting the conductive sections of the strap and ground reaches a ground path warning predetermined resistance level, and a second of the warning means when electrical resistance between the electrically conductive sections of the strap reaches a strap warning predetermined resistance level.
A device for connecting a person's body to electrical ground, comprising:
- a. a strap which may be connected to the person's body, comprising at least two electrically conductive sections;
- b. at least one electrical path connecting each electrically conductive section of the strap to ground;
- c. at least one safety resistance in the path between each of the conductive sections of the strap and ground;
- d. a plurality of warning means for providing notification relating to operation of the device;
- and
- e. circuit means for actuating a first of the warning means when electrical resistance of the paths connecting the conductive sections of the strap and ground reaches a ground path warning predetermined resistance level;
- a second of the warning means when electrical resistance between the electrically conductive sections of the strap reaches warning predetermined resistance level;
- and a third of the warning means when a safety resistance is shorted.
Dependencies are inferred from the claim text.