Abstract: An electromagnetic contactor including: an arc-extinguishing chamber in which a contact portion is disposed; a case having an arc-extinguishing chamber housing portion in which the arc-extinguishing chamber is housed; and an arc-extinguishing cover mounted on the case and configured to cover the arc-extinguishing chamber housing portion, wherein at least one of the case and the arc-extinguishing cover has a first engaging portion and a second engaging portion, the other has a third engaging portion configured to engage with the first engaging portion and the second engaging portion, and the arc-extinguishing cover is held to the case in either a first state in which the first engaging portion and the third engaging portion are engaged with each other or a second state in which the second engaging portion is engaged with the third engaging portion.

Abstract: An easily assembling light bulb socket as disclosed secures a light bulb in a single clicking action. The disclosed socket comprises an electrically conductive sleeve configured to clasp a threaded end of the light bulb. The sleeve comprises a bump configured to slide into a thread recess and click-secure the bulb in the sleeve. A first disk received into the socket is riveted to the sleeve and to a metallic ribbon. The sleeve rivet makes a connection with a first wire and the ribbon rivet makes a connection with a second wire. The socket additionally comprises a second disk defining two holes aligned with the rivet holes in the first disk to receive a respective wire there through. The second disk holes include elliptical recesses configured to channel and secure the first and second wires between the disks when the second disk is axially rotated adjacent the first disk.

Abstract: An assembly includes a light source holding component sized and arranged to securely receive a source of light. The light source holding component may include a displaceable protective device that functions to generally protect against an accidental touching of electrical terminals of the light source holding component. An accessory mounting feature may also be provided to the light source holding component, The accessory mounting feature is adapted to cooperate with an accessory to provide a seal against a surface to which the light source holding component is attached. The light source holding component may have wire ports that are formed within an overall general outer diameter of the light source holding component. By way of example, the wire ports may include wire contacts having wires pre-attached thereto or the wire ports may include electrical connectors of the push-in type for receiving and thereupon holding wires inserted therein.

Abstract: An easily assembling light bulb socket as disclosed secures a light bulb in a single clicking action. The disclosed socket comprises an electrically conductive sleeve configured to clasp a threaded end of the light bulb. The sleeve comprises a bump configured to slide into a thread recess and click-secure the bulb in the sleeve. A first disk received into the socket is riveted to the sleeve and to a metallic ribbon. The sleeve rivet makes a connection with a first wire and the ribbon rivet makes a connection with a second wire. The socket additionally comprises a second disk defining two holes aligned with the rivet holes in the first to disk to receive a respective wire there through. The second disk holes include elliptical recesses configured to channel and secure the first and second wires between the disks when the second disk is axially rotated adjacent the first disk.

Abstract: An image display apparatus includes a display panel with an aperture, an anode terminal for applying a voltage to the display panel through the aperture, and an anode cap, attached on an external surface of the display panel, for holding an electroconductive wire applying a voltage to the anode terminal. In addition, a fixing member has a through hole in which the anode terminal is inserted for fixing the anode cap at an inside portion of the anode cap. The anode cap includes a fastening portion detachably fastened to the fixing member within the anode cap.

Abstract: A process for etching silicon wafers using a caustic etchant in the form of an aqueous solution comprising water, a hydroxide ion source, and a chelating agent. The process produces silicon wafers substantially free from diffused metal ions.

Abstract: A connector includes a tubular wall on a first body containing a lamp envelope, coaxially receiving an insulating tube mounted on a second body having a cavity that receives the first body, spring metal strip terminals on the outside of the tubular wall in resilient contact with spring metal strip terminals on the inside of the cavity, and microprocessor controlled heated and cooled air delivered to the lamp envelope by way of the insulating tube in response to a sensor that monitors at least one of lamp amalgam temperature and lamp radiation.

Abstract: A connector assembly, in particular for making contact with gas discharge lamps, is specified which is safe in operation even with the lamp not having been introduced. The assembly has a housing made of a dielectric material, having a central contact and having an outer contact. A rotatable sleeve made of a dielectric material is situated in the housing. The sleeve can be rotated by means of at least one lug fitted on the outer periphery of the base of the gas discharge lamp. A tongue which moves from a first position to a second position when the gas discharge lamp is screwed in is fitted on the rotatable sleeve. The tongue opens or closes an electrical circuit, or actuates a switch.

Abstract: The invention includes an electrical connection system utilizing a terminal/cavity combination. The system includes a connector housing having a bay for receiving a plurality of the terminal/cavity combination units in a stacked relationship. The terminal/cavity combination unit includes a metal terminal, preferably having a tuning fork configuration, that is received in an electrically insulative carrier. The insulative carrier has a terminal cavity defined in part by two spaced apart side walls and a floor extending between the side walls for supporting the terminal. The carrier also includes a front wall having an opening for receiving a portion of a second terminal therethrough and so that the second terminal makes electrical contact with the terminal in the carrier. At least one indexing rail extends downwardly from a portion of the floor. Carriers can be stacked one on top of the other wherein the rail or rails are received between the two spaced apart walls of the carrier below.

Abstract: A socket shell for a lamp socket includes a substantially cylindrical socket sleeve formed to cooperate with a socket cap of substantially dome-shaped configuration and having a circumferential lip that seats up against an upper edge of said socket sleeve. Lugs are formed on the outer circumference of said socket sleeve proximate a first end thereof to pass through slots formed in the inner wall of said circumferential lip and to cooperate with said lip to obtain a releasable securing means. A thrust washer is deployed against a shoulder proximate said circumferential lip to apply pressure to said first end of said socket sleeve when attached to said socket cap so as to solidly lock said sleeve and cap in an assembled condition. The cap and sleeve are each formed of brass with a wall thickness of approximately 5/64ths of an inch to thus provide a heavy-duty lamp socket shell and lamp socket.

Abstract: An explosion and flame proof electrical connector protective assembly is presented which comprises an explosion proof cylindrical housing threadably connected at each end to explosion proof gland members. A pair of disconnectable conventional, i.e. non-explosion proof, connector elements, each leading from ends of respective cables, are disposed and connected within the housing and gland members. Both gland members are tightly sealed to the respective cables forming a protective explosion proof environment within the housing for the attached connector elements. The protective assembly of the present invention is especially well suited for use in extremely hazardous environments such as Class 1, Division 1 hazardous areas as defined by the National Electric Code (NEC) and which are associated with oil rigs and the like.