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Topic: Electric switch

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	Condition responsive electric switch system, electrical switching device and method of operation thereof - Patent ...
		The electrical switch device as set forth in claim 11 in which the preselected initial contact make-break position of the at least one set of contact elements is located approximately one-half of the total distance between said preselected open and closed positions of that set of contact elements.
		The electrical switching device of claim 15 in which said switching means includes a pair of movable contact elements with said resilient means mounted therebetween to produce a positive spring gradient on both movable contact elements and a wiping action as the switching means enters one of the switching modes.
		Electrical switching devices, especially those employed in the control of electrical circuits in domestic appliances, are often operated by changes in temperature, pressure, liquid levels, electric power, or the like and utilize various different power elements, such as bi-metals, bellows, floats, and magnetic armatures or the like for instance.
	www.freepatentsonline.com /4490708.html (6559 words)

	DIP switch - Wikipedia, the free encyclopedia
		A DIP switch is an electric switch that is packaged in a standard dual in-line package (DIP).
		This type of switch is designed to be used on a printed circuit board along with other electronic components and is commonly used to customize the behavior of an electronic device for specific situations.
		DIP switches are often used instead of jumper blocks where a setting may be changed more than once.
	en.wikipedia.org /wiki/DIP_switch (128 words)

	KDYNE :: L80 ELECTRIC LIQUID LEVEL SWITCH
		Loosen and remove the level switch from the tank, vessel or cage that it is mounted to.
		Switches that are installed but not practical to operate with the process fluids may be tested by removing the spring cap (4) and the spring (5) then depressing and releasing the spring guide (6).
		Should the switch operation have one of the malfunction s as given in the table of 8.7, use procedures given in paragraphs 8.8 thru 8.9 to calibrate the switch.
	www.k-dyne.com /l80ells_op.html (3184 words)

	Modular electric switch-circuit breaker assembly - Patent 4945450
		Electric switches or circuit breakers can be arranged within both compartments or an electric switch can be installed within one compartment with an electric circuit breaker installed within the other.
		Mechanical and electric ground connection is made between the multi-component module and the panelboard-switchboard assembly by a latch arrangement that is accessed by a secured bail handle.
		The saddle springs 70, 71 insure good electrical connection between the connector clips and the bus bars over long periods of extended use by maintaining constant contact pressure and thereby reduce the heat that would otherwise be generated by the contact resistance that occurs with other connector clip configurations.
	www.freepatentsonline.com /4945450.html (3223 words)

	Electric commutator-switch and method for assembling it - Patent 4006526
		According to the invention, the switch comprises a tumbler having a central component of such a shape that the resilient element and the contact blade are directly placed on it without any risk of error.
		1, the switch is constituted of a casing 1, parallelepipedic in shape, and exhibiting a peripheral edge 2 at one of its ends.
		The switch being rotated in either of the end positions putting-on a circuit in which the switch is placed, it can sometimes happen, in case of over current, a slight contact sticking between the mobile blade and the terminal.
	www.freepatentsonline.com /4006526.html (1287 words)

	Plant Maintenance - Electric Switch Heating
		Switch heating exists for the sole purpose of making sure that points continue to work in all weather conditions, specifically to prevent freezing in winter.
		All switch heating is controlled from a control cubical, usually found on the line side.
		The switch heating strips are further tested by spraying water on them.
	www.trainweb.org /railengineering/plant/eswitch.html (480 words)

	Diaphragm Actuated Electric Switch (Site not responding. Last check: 2007-10-22)
		The PPED consists of the SPDT-1 (standard size) snap acting switch and a diaphragm actuator.
		This is a snap acting single pole, double throw switch with three screw type wire attachments.
		The switch rating is 0.25 amps 250 volts DC, 0.50 amps 125 volts DC, 20 amps 125, 250, 480 volts AC.
	www.beswick.com /ViewPart.htm?PartID=202 (162 words)

	Children's Heart Institute \| How the Heart Works: The Heart Electric System
		The Sinus Node is considered to be the main switch of the heart which inititates the electric impulse of the heart and terminates it.
		The Purkinje fibers allows the electrical impulse to directly activate the ventricular muscle to contract, and so a heartbeat is generated, the blood from the right ventricle is pumped to the lungs, and the blood from the left ventricle is pumped to the body.
		The heart electric system plays the major role, by generating and conducting an electric signal (electric impulse), it provides the instructions needed, for the pumps to time their actions precisely, as when to empty and when to close.
	www.childrenheartinstitute.org /educate/heartwrk/elechhse.htm (1693 words)

	Electric Cylinder Accessory: Rotary Limit Switch - Nook Industries, Inc. ActionJac Electric Cylinder Actuators
		Every motorized Electric Cylinder must be controlled so that power to the motor is turned off and the brake engaged before the limits of mechanical travel are reached.
		The switch actuation may be individually and infinitely adjusted anywhere within the travel of the cylinder.
		Switches are factory installed to assure proper assembly in the correct orientation for the specified mounting position.
	www.nookindustries.com /cylinder/CylinderLimitSwitch.cfm (681 words)

	Electric switch flips atoms TRN 021302
		A team of researchers from the Max Planck Institute and the Technical University of Munich in Germany has used an electronic switch to transfer the spin of a group of electrons to the nuclei of atoms in a semiconductor.
		The energy associated with electron spin is considerably greater than the energy associated with atomic spin, and this energy mismatch usually keeps the electrons from changing the atomic spin.
		But by using a gate, or electronic switch, to control the density of electrons in the semiconductor, the researchers found that at certain densities the interactions between electrons affect the spins of the semiconductor's atoms.
	www.trnmag.com /Stories/2002/021302/Electric_switch_flips_atoms_021302.html (858 words)

	Autos make big switch from electric to hybrid (Site not responding. Last check: 2007-10-22)
		When General Motors pulled the plug on its $1 billion electric car, it may have appeared that the auto industry was throwing in the towel on low-or-no-emissions vehicles.
		Unlike electric cars such as the GM EV1 designed to satisfy California's requirement that automakers sell zero emission vehicles, hybrids do not require a charging station and are not restricted to the range of the batteries, usually about 100 miles.
		With California preparing to drop its requirement that 10 percent of a car maker's sales be electric vehicles, GM is planning to park the EV1 in a museum after spending $1 billion in developing the commercial failure.
	cruisin.redding.com /stories/20030606hold115.shtml (771 words)

	Alaska Railroad Project
		An electric switch is something that allows the train to switch tracks.
		If the switch hears the proper sequence of numbers from the oncoming train, the switch will reverse for movement of the train into the siding and the signals will change to indicate the route has changed.
		Automatic switches restore to their normal position after the first train passes to allow the the second train to pass with no manual intervention.
	www.northstar.k12.ak.us /schools/wlr/WellerCyberfair/kraska/switches.html (243 words)

	Silicon light switch is electric TRN 062905
		Researchers from Cornell University have made a relatively small silicon device that uses an electric field to switch a light beam on and off.
		An electrical signal changes the way the light in the ring interacts with the light in the channel, effectively turning it on or off.
		The refractive index indicates the angle that light bends at the border of a material; this phenomenon is responsible for the illusion that a straw bends at a liquid surface.
	www.trnmag.com /Stories/2005/062905/Silicon_light_switch_is_electric_Brief_062905.html (329 words)

	Electric switch - DirectIndustry.com (Site not responding. Last check: 2007-10-22)
		The IFO photoelectric switches are non-contact switches which are suitable for use as a diffuse-reflective sensor (without reflector) or as a retro-reflective sensor (with reflector).
		The operating principle is based on modulated light, which is emitted through the front lens of the switch directly to the object or reflector which is to be detected.
		The reflected light reaches the receiver through a second lens, and is processed electronically, causing a change in the output condition of the switch.
	www.directindustry.co.uk /search/electric_switch_21.html (350 words)

	Nigos-Power Electric Switch Board
		Main device in the power electric switch board is automatic control unit which controls entire drying process and equipment installed in the kiln.
		Aside automatic control unit, various equipment and devices which provide protection for installed equipment are fitted: delay/phase asymmetry control device which cuts down power supply in the kiln in case of power supply disturbance, clutches and bimetals for power supply and additional protection, as well as fusers that protect whole installation.
		Displays of the automatic control unit mounted on the front panel of power electric switch board provide preview of all relevant parameters in the drying chamber.
	www.nigos.co.yu /pwrswchboard.html (173 words)

	Electric Switch - RC Groups
		What vender supplies a good quality on/off power switch that can be used with 13 gauge, high strand count silicon wire.
		If the switch was pre-built using Anderson Power Pole connectors that would be even better.
		If it is for arming switch, you don't need it, if it is for turn on the motor via radio, you would be better off to get a small speed control.
	www.rcgroups.com /forums/showthread.php?t=145075 (318 words)

	Electric Company Switch Hits With Zetron Telemetry
		Using a combination of coal and hydro power, the utility oversees generation, transmission, and distribution of electricity to an estimated population of 230,000 in 423 communities across a service territory of 50,000 square miles spanning Minnesota, North Dakota, and South Dakota.
		The need to switch: To manage electricity being fed into these distant towns, the power company needed a way of remotely controlling its pole top switches, a type of gang switch, that is normally manually opened and closed.
		In case a power line goes down in one direction, pole top switches can be opened or closed to feed electricity from another line and keep the town in power.
	www.zetron.com /pages/english/realw/7144.html (869 words)

	New solid-state power switch safeguards electric service (Site not responding. Last check: 2007-10-22)
		"The nation's electric grid is operating so close to capacity that many of today's electric load demands for fast and dynamic voltage support cannot be provided fast enough," says Alex Huang, professor of electrical and computer engineering at Virginia Tech.
		The Tennessee Valley Authority is currently funding research by Virginia Tech to use the ETO in a high-power converter for dynamic voltage support in transmission and distribution grids.
		The increasing frequency of electricity outages and outage duration are due primarily to lack of quick voltage support, leading to voltage collapse in many regions of the country and poor quality of power (flicker, for instance), she wrote in the R&D entry.
	www.brightsurf.com /news/aug_03/EDU_news_082003_b.php (1097 words)

	Woodalls Open Roads Forum: Tech Issues: Electric step switch (Site not responding. Last check: 2007-10-22)
		Help please!I am replacing manual steps with electric steps.I am tring to find an original entry step switch for a 1986 Southwind 24ft.The original part numbers or soucre for the original switch would be very helpfull.
		On our 1991 rig, the switch was mechanical, however I changed the controller on a friends 1992 version, and they sent a new magnetic switch to replace the mechanical one.
		Thanks for all the response.I have the magnetic switch for the door,and I would like to have the power switch that fits in the dash in the orignal location so I can extend the step and leave it extended and open and close the door as nessesary.By the way,it is a Kwikee step.
	www.woodalls.com /forums/index.cfm/fuseaction/thread/tid/13309751.cfm (320 words)

	Independent, The (London): Time we made a switch to electric
		Electrics are clean, and do not emit CO2.
		But far more electricity would have to be generated; if fossil- fuelled, it would not only be polluting, but would be a terribly inefficient way of using those fuels.
		For example, the Renault Kangoo comes in two electric forms: the cheaper Electri'cite and the Elect'road, whose range is doubled by a petrol-driven generator.
	www.findarticles.com /p/articles/mi_qn4158/is_200408/ai_n12801803 (444 words)

	Switch and Switch Gear Manufacturer,Electrical Switch,Switch Gear Exporter,Electric Switch Suppliers and Exporters,India
		Manufacturers and exporters of electric switches, electrical sockets, light switches, lamp holders, bulb sockets, switch fuse unit, hook type switches, plunger type switches, rocker arm switches for refrigerator and home appliances.
		Engaged in export and supply of auto switches, solenoid switches, self solenoid switches, starter solenoid switches and electrical starter switches.
		Manufacturers and exporters of magnetic flow switches, indicator switches, miniature and paddle switches, ball and sight flow indicator and pneumatic proximity switches.
	dir.indiamart.com /indianexporters/e_switch.html (3436 words)

	Switch Art - Electric light switch covers with interesting designs and patterns (Site not responding. Last check: 2007-10-22)
		The Switch Art covers have been designed to add that extra touch to a room.
		Switch Art covers have been made to fit the conventional rocker switch or the dimmer switch.
		The double sided tape, on the back of the cover, means the Switch Art switch covers are quick and simple to apply.
	www.switchart.co.uk (97 words)

	[No title]
		More than 5,500 Michigan businesses switched their electric service to a competitor of Detroit Edison or Consumers Energy in 2004, according to a report issued by state regulators Tuesday.
		Detroit Edison and its allies are likely to use these statistics in the months ahead to show how much electric choice is hurting the utility's bottom line as they renew their efforts to limit competition in Michigan.
		Any changes made to the electric choice law will affect how much residential customers pay for electricity in 2006 and whether they can switch to a competing supplier to get a lower rate.
	www.wzzm13.com /printfullstory.aspx?storyid=36056 (722 words)

	New Solid-state Power Switch Safeguards Electric Service
		Research Aims To Keep Electricity Flowing Smoothly (November 4, 1998) -- As the nation's electric power grid and its support systems become increasingly complex, and as demand for electricity grows, a new research program at Purdue University is investigating ways to...
		The snubber uses significant power itself, increases the size of the switch and the complexity of energy recovery circuits.
		Because the ETO has the highest power handling capacity among all solid-state switches, it was deemed useful for such high-power application as FACTS devices and the U.S. Navy's new electromagnetic aircraft launch system.
	www.sciencedaily.com /releases/2003/08/030815074303.htm (1121 words)

	NAXJA Forums -::- North American XJ Association - Aux. Electric fan switch wiring?
		I unsure on where to tap for the override switch on a 91' and newer XJ.
		I just put a switch right under the dash in the middle of the wire (along with a 20 amp inline fuse) and then put the wire into an empty slot in the fuse box (batt.
		The switch works great, but to be honest, the temp gauge works so well I don't ever touch the switch.
	www.naxja.org /forum/showthread.php?t=3347 (1528 words)

	Camping World Open Roads Forum: Class A Motorhomes: Monaco Electric Switch In Cabinet??
		Inside that cabinet on the right side there is an electric switch i cant figure out what it does..
		I don’t have a Monaco but my switch is above the stove in a cabinet, which is on the left side of the refrigerator, with the circuit breakers.
		Inside the cabinet under the sink is the 110v wall type switch for running the water heater on electric mode.
	www.campingworld.com /forums/index.cfm/fuseaction/thread/tid/32165.cfm (342 words)

	A1 Chemi Coatings Industrial Chemicals - silicone lube, dry slick, degreaser safety solvent, electric switch contact ...
		Stop Stat neutralizes static electricity on all surfaces and leaves a transparent film which prevents future build-up.
		Electric Switch and Contact Cleaner is an effective cleaner for all types of electrical switches and contacts.
		F-52 Contact Cleaner is an effective cleaner for all types of electrical equipment.
	www.thomasregister.com /olc/72735095 (630 words)

	(WO 01/54153) ELECTRIC SWITCH (Site not responding. Last check: 2007-10-22)
		Said switch comprises at least one contact system (3) with a switching contact (4) that can be displaced to switch between an open and a closed position and a fixed contact (5) that interacts with the switching contact (4) in the closed position.
		The switch (1) has an actuating organ (6) which acts upon the switching contact (4) to effect the switching operation.
		Delay means (8) which co-operate with the switching contact (4) are provided in the switch (1) to delay the switch from being displaced into at least one of the two switching positions, in particular into the closed position.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/54153.010726 (248 words)

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