Abstract: The present invention relates to an electromagnetically controlled drive device, in particular a ratio meter, the device being of the type comprising: a set of control coils (10, 20); a frame (50) which carries the set of coils (10, 20); equipment including a magnet suitable for being pivoted by the set of control coils (10, 20); and magnetic shielding (100) surrounding the set of coils (10, 20) and the support frame, at least in part, the device being characterized by the fact that the shielding (100) comprises an annular skirt (110) that is not a circular cylinder.

Abstract: A multilayer-type inductor manufacturing method is provided which is capable of easily obtaining inductors having many different inductance values even if the pattern of a coil conductor is not changed for each inductance value. The coil conductor includes a line section of a predetermined pattern, a viahole connected at the end of the line section, and a pad. The viahole and the pad have a width greater than that of the line section and have an elongated shape. By deviating adjacent coil conductors in the direction of the length of the viahole and the pad, the inner area of a coil formed of the coil conductors is increased or decreased, thus varying the inductance value of an inductor.

Abstract: A power bypass connector comprises an entry body having a first end configured to mate with an amplifier. The connector also includes a female body having a first end configured to mate with a coaxial cable having a cooperating male connector. The second end of the female body is configured to mate with the second end of the entry body. A terminal is disposed within the female body and extends beyond the end of the male body. An insulator is disposed within the entry body to mechanically and electrically insulate the terminal from the entry body. A support is disposed within the connector, partially within the entry body and partially within the female body and includes a spring which biases the support and the terminal within the connector. The power bypass connector provides power and RF signal around a CATV amplifier to a cable, can conduct up to approximately 15 amperes, provides 75 ohms impedance, and provides RF performance up to approximately 860 MHz.

Abstract: A rotation activated circuit breaker with a leading auxiliary switch, in which the auxiliary contacts of the auxiliary switch are actuated before the main contacts. An actuator element is provided, which contains a drive pinion that is rotation actuated by an actuating mechanism and a longitudinally movable first gear rack, which engages with the drive pinion and actuates the auxiliary switch. Furthermore, a second gear rack, which lags behind the first gear rack in the closing direction, and an output pinion, assigned to the second gear rack, which is connected to a drive shaft for the breaking mechanism of the circuit breaker, are provided. The tooth pitch of the output pinion and the second gear rack is greater than the tooth pitch of the drive pinion and the first gear rack so that the total rotation angle of the drive pinion and output pinion is the same over the full closing motion of the actuating mechanism.

Abstract: An improvement structure of the female seat of a high frequency connector, wherein two sets of symmetric L shape terminals are inserted to the rear side of a female seat of a connector, each L shape terminals are arranged from outer side to inner side and from larger one to smaller one sequentially; characterized in that the L shape terminals are integrally formed on a protrusion which is extended from the lateral side of a long strip material. According to the aforementioned structure, since each set of L shape terminals with different sizes are arranged integrally on the protrusion in installation. Therefore, the L shape terminals with different sizes are not necessary to be manufactured one by one and it is unnecessary to be secondarily finished for bending. Therefore, it has a simple manufacturing process and the manufacturing cost is reduced for increasing the competition of market.

Abstract: A magnetic flux concentrator shield is disclosed for use with magnetic flux sensors in an overload relay for multiple pole electromagnetic contactor applications. The magnetic flux concentrating shield has slotted layers of laminated members. The layers have a series of pole shielding slots which concentrate magnetic flux generated by conductors carrying current through conductor apertures in each layer. Magnetic flux sensors are positioned within air gaps within each pole of the shield. By shielding the generated magnetic flux from reaching the magnetic flux sensor of another pole, the pole shielding slots minimize cross pole magnetic flux sensor interference.

Abstract: An electrical switch includes a magnetically actuated switch (16), such as a reed switch, and a permanent magnet (10). A path defining arrangement (14) is mechanically coupled (by track follower 210) to the permanent magnet, for allowing the magnet to move in a defined path. A particular part of the path lies adjacent to a portion of the reed switch. The particular part (218) of the path is close enough to the reed switch to actuate the switch. Consequently, or whereby, the magnet, at a particular position along the path will cause the reed switch to assume one of first (open) and second (closed) states. In a particular embodiment of the invention, the magnet, when at the particular position along the path, causes a normally-open switch to close. An energy storage arrangement is coupled to at least the magnet, for urging the magnet toward one end (220) of the path. In the particular embodiment, the energy storage arrangement is coupled to the magnet by way of a track follower (210).

Abstract: An electrical coil assembly and method of manufacturing an electrical coil assembly having at least two interconnected electrical coils forming a coil pair with each coil formed with a multiple winding of wire. The electrical coil assembly preferably has at least one pair of electrical coils with a first coil, a second coil and a third coil aligned in tandem. The first coil is formed from a first wire having an inner end and an outer end with the first wire wound in a clockwise or counterclockwise direction from the inner end to the outer end to form multiple layers of the first wire aligned relative to one another in a single row. The second coil is located between the first coil and the third coil, and is formed from a second wire having an inner end and an outer end with the second wire wound in a direction opposite to the direction of the first wire to form multiple layers of the wire aligned relative to one another in a single row.

Abstract: A solenoid assembly is provided having a sealing device disposed in a recess of the over-molded material in order to seal the electrical leads extending from the coil of the solenoid through the recess. The sealing device is an elastomeric member having holes defined therein for the electrical leads to pass through and a larger portion that is disposed in the recess. With the larger portion pressed into the recess, a force is transferred through the elastomeric material onto the electrical leads to prohibit ingression of contaminants into the windings of the coil. The electrical leads could be either lead wires or rigid pins. The elastomeric material also serves to provide vibration damping.

Abstract: A large key covering several small key fields of a keyboard has a bearing fork projection (9), lever arms (10 and 11) of which each have an bearing pin (12) that engages a grip slot located in each side of an adjacent guide bush pair (14), with a key ram (5) of the large key ram including a clip collar (16) which, when the large key is pivoted to extend the key ram into a guide bush (6) of the guide body (3), snaps over a protrusion ledge (15) in the guide bush. The large key provides an arrangement that is easy to install, is structured as a single piece, and allows for simple verification of assembly; unlike known large keys covering several small key fields which comprise several parts and are difficult to mount.

Abstract: A key switch comprising a base, a key top arranged above the base, a pair of link members interconnected with each other to support the key top above the base and to direct the key top in a vertical direction, a biasing member for elastically urging the key top vertically away from the base, and a switching mechanism for selectively opening and closing an electric circuit in connection with a vertical movement of the key top.

Abstract: A molded coil is provided for preventing the entrance of water, oil and the like into the inside a coil. The molded coil 1 is comprised of a coil 2 provided therein and having the outer surfaces thereof covered by a resin material, and a molded element 17 formed by curing the resin material. Bulging portions 6 are provided at the opposite ends of a shaft 5 of a bobbin 3 of the coil 2. The molded element 17 is so formed as to cover the coil 2 from the outer surfaces of the two bulging portions 6 over the outer circumferential surface of the wound wire 4. On the outer surface of the lower bulging portion 6 is provided an embossed engaging portion in the form of a closed ring along the entire circumference of the bulging portion 6. Thus, even if water, oil or the like enters through mold detaching holes 18, it will not reach the inside of the coil 2.

Abstract: A linear actuator includes a plurality of magnetic plates and a ferrite core with a conductive cover which are mounted on the actuator body to generate a permanent magnetic field. The linear actuator also includes a metal bobbin which has an outer surface and which is formed with an aperture that defines an inner surface for the bobbin. Further, the bobbin is formed with a gap which extends along its length and which intersects the bobbin from its inner to its outer surface. An insulating insert is placed in the gap. Finally, a winding is wrapped around the outer surface of the bobbin to form an electromagnetic coil, and the coil on the bobbin is slidingly mounted on the actuator to receive the ferrite core through the bobbin's aperture. Electrical current can then be selectively applied to the winding to interact with the permanent magnetic field and thereby cause reciprocating motion of the coil.

Abstract: A stand-off for mounting a PCMCIA connector having two vertically stacked shells to a mother board. The stand-off is attached to a side of each shell and comprises a main plate and a plurality of flanges extending from upper and lower edges thereof. A pair of locking protrusions extends from opposite edges of the main plate for attaching the stand-off to the shell. A tab defining a screw hole perpendicularly extends form a front portion of the main plate. The connector is attached to the mother board by means of bolts. A spacer is provided between the tab and the mother board to ensure that the connector is positioned parallel to the mother board. The vertical position of the connector is dependent on the length of the spacer and the position of the mother board.

Abstract: This element comprises a winding (4, 5) wound on a rectilinear magnetic core formed by various ferrite rods (1, 2, 3) placed side by side as in a bundle, and the winding is wound partly in one direction (9) and partly in the other (10). Application: Cable television distribution.

Abstract: An ignition coil assembly module (40) that can be connected to and disconnected from an engine spark plug. The module elements are arranged as a succession of cylindrical layers about a central ferromagnetic core (46). From innermost to outermost, the succession is: a) a secondary bobbin (48), b) a secondary coil (58), c) a secondary encapsulant (194) encapsulating the secondary coil, d) a primary bobbin (50), e) a primary coil (56), f) an inner wall (181) of an environmental shield (42) encapsulating the primary coil, g) a ferromagnetic shell (52), and h) an outer wall (180) of the environmental shield encapsulating the shell. The primary bobbin forms a liquid container for holding secondary coil encapsulant. A terminal (100) extends through a transverse wall (71) of the primary bobbin for carrying secondary current from the secondary coil to another terminal (118) on the other side of the transverse wall that connects to a spark plug (80).

Abstract: An ignition coil has a coil case made of an insulating resin, including a head portion, a cylinder portion accommodating a primary coil, and a secondary coil and a high-voltage tower portion for fitting with a spark plug. At least one of those three portions is separately molded and then the portions are assembled to form the coil case. The longitudinal length of each of the three portions is less than a forming flow length of the insulating resin, thereby preventing inferior molding. Further, the structure of each molding die is simpler than that of the coil case for an integral molding. Therefore, the coil case of the ignition coil can be molded readily without molding defects, even when the coil case is elongated, formed thinner, and/or formed with an undercut portion.

Abstract: A connector device in which a push rod can be locked in a predetermined approach position when an IC card is connected. The structure of an ejection mechanism is simplified, and the number of parts is reduced and assembling operability is improved. The push rod is held so as to reciprocate movably while constantly biased in an IC-card ejection direction, outside of a frame to guide insertion/removal of the IC card. A transmission pin attached to the push rod is engaged with a heart-shaped cam groove provided in an outer side surface of the frame. The transmission pin is constantly biased by a spring force of an elastic piece integrated with the push rod toward the cam groove. When the IC card is inserted, as an operation member of the transmission pin is held in the cam groove, the push rod is locked in the predetermined approach position.

Abstract: A remote control device has a compartment enclosed by a housing and receiving a printed board that carries a potentiometer for controlling the volume of sound of an electronic sound device and a switch for deactivating a selected playing selection. The remote control device is further provided with a plurality of coupling elements connecting the printed board to the housing and with a multi-wire cable connecting the potentiometer and push switch to an audio circuit and a selection control circuit of the electronic sound device.

Abstract: Systems and methods are described for providing a hydrogen sensing element with a more robust exposed metallization by application of a discontinuous or porous overlay to hold the metallization firmly on the substrate.