Abstract: An electrically grounded land surface mounting for an electrical fixture such as an airport runway approach light is disclosed. A flanged member connects a frangible coupling to a long, straight steel rod driven into the ground at the site. The coupling accepts a post supporting the light and can be broken if an aircraft wing or tire should strike it. The flanged member is adjustably clamped onto a first end of the rod extending above the surface of the ground at the site, and the remainder of the rod is buried in the ground at the site to discharge any electrical charge in the fixture or in the atmosphere around the fixture in accordance with the National Electrical Code or other grounding requirements.

Abstract: A device and method of wrapping an electric cable used for grounding a utility vehicle to minimize its electrical impedance to 60 Hz alternating current. Electrical cable is wrapped around an array of four spools that are arranged so as to form two parallel, closely-spaced planes with the axes of the spools defining the planes. The distance between the spools of each plane is larger than the distance between the planes so that the cable, when wound, forms long, parallel segments. By reversing the direction of the cable and keeping the segments parallel and close to each other, electrical currents induced in these segments cancel each other and keep the impedance in the wrapped cable minimal. Preferably the cable wrapping path begins between the two pairs of spools and continues counterclockwise outside both of the pairs of spools. The path then proceeds between the spool pairs and then clockwise outside of both pairs to the starting point.

Abstract: A textile fabric including a plurality of electrically conductive fibers characterized as providing sufficient current to induce either a wired or wireless coupling between the textile fabric and a portable electronic device. The textile fabric is intended for fabrication into a functional article of clothing or other item made of the woven textile fabric, so as to increase functionality of the article of clothing or item made thereof. The plurality of electrically conductive fibers are characterized as creating an interconnect to a portable electronic device, including integrated components, electronics, or the like, or serving as an antenna for signals received and transmitted by the portable electronic device.

Abstract: This invention relates to a portable grounding mat, and more particularly to a mat specifically designed to protect electrical workers by providing a zone of equi-potential. The mat comprises a flexible base to which is attached at least two conductive elements laid out in a continuous pattern.

Abstract: An apparatus for patient safety protection in a medical device with a heater. A heater configuration for a medical device, such as a haemodialysis machine, is disclosed in which a shock hazard to the patient from the heater elements due to a single fault condition is eliminated. The invention comprises an insulation layer formed between the heater elements and a grounded metal plate. A single fault condition is prevented from creating a shock hazard to the patient (which is considered to be the dialyser fluid) because any break down of the insulation layer which brings the heater elements 14 into contact with the grounded metal plate will result in a large current flowing to ground (rather than to the patient), thereby causing a fuse in the circuit to trip. Tripping of the fuse removes power from the heating elements, thereby preventing any further possibility of contact between the live electrical heater element and the dialyser fluid (i.e. the patient).

Abstract: An electrification removing component comprising:a ceramics for removing electrification of which surface resistivity is in a range of 2.times.10.sup.6 through 10.sup.10 .OMEGA./cm.sup.2 ; and an electric conductive material connected to the ground; said ceramics for removing electrification being electrically connected to the electric conductive material with an area by contact or bonding on surfaces of the ceramics for removing electrification and the electric conductive material.

Abstract: A grounding structure for use in an electric appliance of the type including a pivotable door attached thereto, which has a plurality of knobs and a conductive bracket. The grounding structure includes two members, a supporting conductive plate and a resilient conductive plate. The two members maintain a continual engagement with each other at any state of the door so that electrostatic charges appearing on the knobs and the door can be effectively discharged through a front panel of the electric appliance.

Abstract: A computer keyboard according to a preferred construction has multiple non-conductive keys and at least one conductive key mounted in a keyboard housing. The conductive key includes a molded plastic key body having conductive material embedded therein. Conductive plugs are electrically coupled and mounted to the conductive key body. An electrostatic discharge pad is provided on a switch assembly positioned beneath the keys of the keyboard. The discharge pad is coupled to ground through a path resistor. When the conductive key body is depressed to an activated position, the plugs engage the electrostatic discharge pads so that electrostatic charges of the user progressively dissipate to ground through the key body, plug, discharge pad, and path resistor. At least one of the path resistor or the plug has a resistance greater than the resistance of the conductive key body.

Abstract: This invention provides a static discharging device comprising a conductive antenna and a conductive retainer connected to each other, said retainer can be wore on any finger to make a quick and short tap on any metallic portion to discharge the static electricity.

Abstract: A water heater having an electrically grounded water tank including an electrically conductive portion, a water tank inlet and outlet connected to deliver water to and from the water tank, a heater connected to the tank for heating water in the tank, a control for controlling the application of heat to the water, an electrically grounded outer jacket surrounding the water tank, a bottom member electrically grounded to the outer jacket, and a spring urged electrical bonding clip secured to and electrically connected to the bottom member and directly electrically engaging the water tank electrically conductive portion.

Abstract: Positive assurance of correct connection, in supplying electrical utilization equipment from a current source, is provided when it is critical to safety and particularly when receptacle outlets are used or a fixed wiring installation required which may be subject to wiring error. An electromagnetic relay is employed to prevent equipment use and to provide audible indication in the event of hazardous connective error such as reversal of ungrounded and grounded neutral conductors and the omission of a grounding connection. The relay may be one that is also otherwise controlled for on-off power switching.

Abstract: A device is described which is used to ground power distribution subterranean cables. A grounding module may be positioned over a connector to the power cables. A remote trigger then fires a probe through an insulating cap on the connector to make a ground circuit from the cable through the connector and probe to a grounding clamp.

Abstract: In an induction cooking apparatus, an electrostatic shield is interposed between the work coil and the location of the cooking vessel upon the sheet forming a cook top to reduce the capacitive coupling between the coil and the cooking vessel to accordingly reduce the voltage between the vessel and ground.