Abstract: In a socket for an electric part, two slide plates 15 and 16 slidably mounted are slid in different directions by applying an urging force for urging an upper operating member 18 downwards, thereby resiliently resilient pieces 5a and 5b of a contact pin 4 in spacing directions to open out contact portions 7. The slide plates 15 and 16 are slid back to their original positions by releasing the urging force to the upper operating member 18, thereby decreasing the resilient deformation of the resilient pieces 5a and 5b in approaching directions to close the contact portions 7 of the contact pin 4. In this manner, the electric part is clamped. Thus, the contact portions can be opened out in equal resiliently deformed amounts by equally pressing the resilient pieces constituting the contact pin.

Abstract: A contact pin assembly for a socket for electrical parts comprises a plurality of contact pins provided for a socket body of a socket for electrical parts and a connection member, formed separately, connecting all the contact pins with a predetermined distance between adjacent ones. The predetermined distance is made substantially equal to a distance between adjacent ones of terminals provided for an electrical part which is held in the socket body.

Abstract: A contact pin assembly for a socket for electrical parts comprises a plurality of contact pins provided for a socket body of a socket for electrical parts and a connection member, formed separately, connecting all the contact pins with a predetermined distance between adjacent ones. The predetermined distance is made substantially equal to a distance between adjacent ones of terminals provided for an electrical part which is held in the socket body.

Abstract: In a socket for an electric part, support levers 14 are disposed on opposite sides of a socket body 2 for turning movement about base ends, and a slide plate 15 is attached the support levers 14 through support shafts 16, so that the slide plate laterally and downwards by urging an upper operating member downwards. Thus, the slide plate can be moved easily by urging the operating member by a small force.

Abstract: An IC socket which has a moving plate provided so that it can laterally move with respect to a base member, an operation member vertically moveably provided with respect to the base member, and at least one actuation member for moving contact pins arranged on the base member from a contact position to a non-contact position with respect to terminals of an IC package by laterally moving the moving plate in accordance with the depression of the operation member. The actuation member is arranged along the end surface of the moving plate.

Abstract: A contact pin assembly for a socket for electrical parts comprises a plurality of contact pins provided for a socket body of a socket for electrical parts and a connection member, formed separately, connecting all the contact pins with a predetermined distance between adjacent ones. The predetermined distance is made substantially equal to a distance between adjacent ones of terminals provided for an electrical part which is held in the socket body.

Abstract: A socket for an electric part includes a pair of slide plates 7 and 8 movable in opposite directions. Contact pin-pressingportions 9 are provided on each of the slide plates 7 and 8 for opening each of contact pins 3 to opposite sides, and operating arms 18 are disposed on a socket body 2 of the socket for turning movement about base ends, and are connected to the slide plates 7 and 8 for operating the slide plates 7 and 8, respectively. Operating projections 28 are disposed on an operating member 22 for turning the operating arms 18 by the vertical movement of the operating member 22, so that the operating arms 18 are turned by the operating projections 28 by urging the operating member 22 downwards to move the slide plates 7 and 8. Thus, the slide plates can be moved easily by urging the operating member by a smaller force.

Abstract: In a socket for an IC package as an electrical part, the IC package is mounted on a mount surface of a top plate mounted on a socket body of the socket. A number of contact pins are arranged to the socket body to be contacted to or separated from solder balls of the IC package. A slide plate is disposed to the socket body so as to be movable with respect to the socket body. Each of the contact pins has a pair of elastic pieces formed at front end portions thereof with a pair of contact portions, each of the paired contact portions of the paired elastic pieces being opened or closed in accordance with the movement of the slide plate so as to clamp the solder balls of the IC package thereby electrically being connected thereto. A pre-load plate is located to press a middle portion of the elastic piece of the contact pin arranged to the socket body so as to elastically deform the middle portion thereof along a direction in that the paired contact portions are close to each other.

Abstract: An IC socket which has a moving plate provided so that it can laterally move with respect to a base member, an operation member vertically moveably provided with respect to the base member, and at least one actuation member for moving contact pins arranged on the base member from a contact position to a non-contact position with respect to terminals of an IC package by laterally moving the moving plate in accordance with the depression of the operation member. The actuation member is arranged along the end surface of the moving plate.

Abstract: A contact pin assembly for a socket for electrical parts comprises a plurality of contact pins provided for a socket body of a socket for electrical parts and a connection member, formed separately, connecting all the contact pins with a predetermined distance between adjacent ones. The predetermined distance is made substantially equal to a distance between adjacent ones of terminals provided for an electrical part which is held in the socket body.

Abstract: In a socket for an electric part, support levers 14 are disposed on opposite sides of a socket body 2 for turning movement about base ends, and a slide plate 15 is attached to the support levers 14 through support shafts 16, so that the slide plate laterally and downwards by urging an upper operating member downwards. Thus, the slide plate can be moved easily by urging the upper operating member by a small force.

Abstract: A socket for an electrical part comprises a socket body having a mount portion on which an electrical part having terminals is mounted, a number of contact pins to be contacted to or separated from the terminals of the electrical part and a movable plate disposed to the socket body to be movable perpendicularly with respect to the mount portion in a usable state of the socket. Each of the contact pins has a pair of elastic pieces formed, at front end portions thereof, with contact portions which are opened or closed in accordance with the movement of the movable plate thereby to establish an electrical connection between the contact portions and the terminals of the electrical part when the contact portions are closed. The movable plate is provided with cam portions arranged between adjacent contact pins, respectively, and when the movable plate is moved, the elastic pieces are pressed by a pair of cam portions disposed on both the sides of each of the contact pins thereby to open the contact portions.

Abstract: In a socket for an electric part, two slide plates 15 and 16 slidably mounted are slid in different directions by applying an urging force for urging an upper operating member 18 downwards, thereby resiliently resilient pieces 5a and 5b of a contact pin 4 in spacing directions to open out contact portions 7. The slide plates 15 and 16 are slid back to their original positions by releasing the urging force to the upper operating member 18, thereby decreasing the resilient deformation of the resilient pieces 5a and 5b in approaching directions to close the contact portions 7 of the contact pin 4. In this manner, the electric part is clamped. Thus, the contact portions can be opened out in equal resiliently deformed amounts by equally pressing the resilient pieces constituting the contact pin.

Abstract: A socket for an electric part includes a pair of slide plates 7 and 8 movable in opposite directions. Contact pin-pressing portions 9 are provided on each of the slide plates 7 and 8 for opening each of contact pins 3 to opposite sides, and operating arms 18 are disposed on a socket body 2 of the socket for turning movement about base ends, and are connected to the slide plates 7 and 8 for operating the slide plates 7 and 8, respectively. Operating projections 28 are disposed on an operating member 22 for turning the operating arms 18 by the vertical movement of the operating member 22, so that the operating arms 18 are turned by the operating projections 28 by urging the operating member 22 downwards to move the slide plates 7 and 8. Thus, the slide plates can be moved easily by urging the operating member by a smaller force.

Abstract: An IC socket which has a moving plate provided so that it can laterally move with respect to a base member, an operation member vertically moveably provided with respect to the base member, and at least one actuation member for moving contact pins arranged on the base member from a contact position to a non-contact position with respect to terminals of an IC package by laterally moving the moving plate in accordance with the depression of the operation member. The actuation member is arranged along the end surface of the moving plate.

Abstract: An IC socket is provided with an IC package which is to be connected to a printed circuit board. The IC socket includes a terminal socket, to be connected to the printed circuit board to establish an electrical connection therebetween, an intermediate connector, such as tab film, which is mounted on the terminal socket, and on which the IC package is to be mounted. The intermediate connector is provided with an IC package side surface, on which an electrode pattern adapted to be joined to a terminal arrangement of the IC package is formed, and another terminal socket side surface on which contact terminals to be connected to the terminal socket are formed. The intermediate connector is further provided with a circuit for connecting the electrode pattern and the contact terminals.

Abstract: A method and a device for dehydrating a heavy oil wherein an emulsion of water and a heavy oil is mixed in a stirring chamber together with a suitable amount of an emulsion breaker, the mixture is subjected to separation in a two-phase separation tank to a heavy oil-rich component and a water-rich component, the heavy oil-rich component is then fed to a dehydrator of a high voltage charge type in which separation to a dehydrated heavy oil and a water-rich component is effected, the water-rich component fractions supplied from the two-phase separation tank and the dehydrator are mixed in a pipeline, the mixture thus obtained is admixed with an O/W emulsion breaker and then, fed to a stirring chamber and finally separated to a heavy oil-containing component and a heavy oil-free water layer in a second separation chamber.

Abstract: 1. An IC socket comprises a socket body in which an IC package is accommodated, a press cover mounted to the socket body to be rotatable, and a press member rotatably mounted through a hold shaft to the press cover. One of the socket body and the press member is provided with a guide convex portion projecting toward other thereof, and the other one of the socket body and the press member is provided with a guide groove for guiding the guide convex portion, in which the guide convex portion is adapted to be fitted into the guide groove in accordance with a closing operation of the press cover so that the press member moves vertically with respect to the IC package thereby to press the IC package.

Abstract: An IC socket includes a contact pin having a plate-like shape. The IC package has a solder ball, and the side surface of the contact portion is separated from the side surface of the solder ball. The contact portion is thinned at its central portion as compared with the edge portions, and the inclined surfaces contact but are separate from the solder ball. Normal lines of the contact points of both the inclined surfaces are directed to the center of the solder ball. The solder ball is received in the thinned portion thereof. In this way, a location space is narrowed in comparison with a flat plate contact pin. The solder ball is also guided by a pair of inclined surfaces to locate it in the predetermined position, and form a wiping effect.

Abstract: In an electrical connector, in which when an upper operation member 17 is vertically moved, a movable plate 14 is horizontally moved through an X-shaped link 18 to thereby displace a contact pin to separate the contact pin from and contact it to a terminal of one of electrical parts, a plurality of X-shaped links 18 are disposed with space at positions corresponding to side surface portions along the horizontally moving direction of the movable plate 14, lower end portions 23b of one link members 23 are pivotally connected to a socket body 13 and lower end portions 25a of another link members 25 are pivotally connected to the movable plate 14, upper end portions 25b of another link members 25 are pivotally connected to the supper operation member 17 and upper end portions 23c of one link members 23 are connected to the upper operation member 17 to be relatively movable in the horizontal direction thereof.