Abstract: A blower includes: an impeller on which there are arranged axial flow blades 40 mounted at circumferential intervals to an outer peripheral surface of a boss; a case surrounding the impeller; and a bell mouth cylindrically constricted to guide gas into the case, wherein an inner diameter of the bell mouth is smaller than an outer diameter of the impeller. Further, each blade has, in the radial direction, a sweepforward wing portion situated on the boss side and exhibiting a positive advance ratio value, and a sweepback wing portion situated on the outer peripheral side of the blade and exhibiting a negative advance ratio value, with the arc length of each blade increasing from the boss side toward the outer peripheral side. Therefore, it is possible to achieve an improvement in ventilation efficiently, through an increase in static pressure and to achieve a reduction in noise.

Abstract: A card connector includes contacts adapted to contact contacts of two memory cards, a housing having inserting openings for inserting the memory cards and arranging and holding the contacts therein, and a shell covering the housing. The housing includes two side walls, a rear wall, and a lower wall contiguous with these side and rear walls to form the inserting openings for the memory cards by these two side walls, rear wall and lower wall, and is provided with a pivotally movable plate to form, by its pivotal movement, the one inserting opening for inserting either of the cards and simultaneously to prevent the other card from being inserted. The card connector enables stable connection by merely inserting two different cards having equal lengths in the inserting direction and different widths and thicknesses into the connector.

Abstract: A card connector into and from which a memory card is detachably inserted and removed, includes contacts adapted to contact connection portions of the memory card, and a housing for arranging and holding the contacts. Metal plates made of a metal are installed in the housing so as to extend onto both sides in the width direction of the housing. The metal plates are integrally provided with connection portions to be connected to a substrate. A tray made of a metal is provided for loading a plurality of memory cards therein, and either of both ends of the tray in its width direction is bent substantially into an L-shape, which bent portion slidably engages the metal plate. The connector achieves a reduced overall height such as less than 2.0 mm and is also superior in safety.

Abstract: A card connector into and from which a memory card is detachably inserted and removed, includes contacts each adapted to contact a connection portion of the memory card, and a housing for arranging and holding the contacts and having an inserting opening for inserting the memory card. The housing includes two side walls, a rear wall, and a lower wall contiguous to these side and rear walls to form the inserting opening for the memory card by these walls. A shell is arranged on the side of the housing opposite from the lower wall, and an elastically deformable tray is arranged on the lower wall so as to be slidable with the aid of a tray restraining plate. The card connector is miniaturized and lighter, more compact and simple in construction and is easy to remove a memory card.

Abstract: A card connector includes contacts of two kinds for two memory cards, each adapted to contact a connection portion of the memory card, and a housing having two inserting openings each into which the respective memory card is inserted and arranging and holding the contacts. The two inserting openings are arranged one above the other substantially in parallel relationship, and an insertion-preventing member is arranged in a position between the inserting openings so as not to contact the contacts of two kind so that once either of the memory cards has been inserted, the other memory card is prevented from being inserted by means of the insertion-preventing member. The card connector thus constructed is simple in construction and easy to remove the memory card and can achieve a miniaturization of the connector without limiting design of circuits of substrate.

Abstract: A card connector which is able to be connected to at least two cards, includes contacts corresponding to the number of the cards, a tray in which at least two cards can be mounted, and a housing having a fitting opening for receiving the tray therein and for arranging and holding the contacts. Also, a card connector which is able to be connected to four cards, includes four kinds of contacts, a tray having card mounting sections in which four cards can be mounted, and a housing having a fitting opening for receiving the tray therein and for arranging and holding the four kinds of contacts. With these constructions, miniaturization in height or reduced overall height of connector is possible with a simple construction.

Abstract: A card connector includes a required number of contacts adapted to contact connection portions of the plurality of the memory cards, and a case arranging and holding the contacts therein and having a plurality of inserting holes for the memory cards. The connector includes at least one locking member movable or pivotally movable when a memory card is inserted, and at least one spring member displaceable when the memory card is inserted. In one aspect, a card connector includes at least one slider for forming parts of the plurality of inserting holes, and at least one holder for movably holding the slider. Consequently, the card connector is able to prevent the insertion of more than one memory card with a simple construction, to provide a miniaturized and high-density connector without any limitation of circuit board design, and easy to design its case and easy to remove the inserted card.

Abstract: An electrical connector includes a plurality of contacts, a housing arranging and holding the contacts and having a fitting opening into which a memory card is inserted, and pivotally movable locking members provided at both longitudinal ends of the housing, respectively, for holding and removing the memory card. The housing includes a main body for arranging and holding the contacts, and mounting portions provided at both the longitudinal ends for pivotally movably mounting the locking members. The mounting portions are each provided on both sides in width direction with protruding pieces extending against the inserting direction of the memory card. The locking members each include an anchoring portion adapted to engage and embrace the protruding pieces under a condition the memory card has been inserted. The electrical connector can comply with customers' requirements against vibration and does not cause any failed connection with a memory card even upon vibration and impact.

Abstract: A connector for plural kinds of cards includes a housing, and a gate-shaped slider slidable on slide rails on both sides in a card inserting space in the housing. Inserting a wider and thicker card, the card engages and moves together with the slider into the housing to contact contacts on one surface in the housing at a predetermined inserted position. Inserting a narrower and thinner card, the card enters an inner space of the gate-shaped slider, and while the slider remains stationary, the card arrives at a predetermined inserted position with the aid of a step having an inclined face in the slider, whereupon the contacting surface of the card arrives at the same level as that of the contact surface of the wider and thicker card so that the card comes into contact with the contacts to achieve an electrical connection therebetween.

Abstract: Recycled ceramic slurry is produced by a method including the steps: dissolving the waste material of unfired ceramic in a solvent to form a waste solution; and adjusting a composition of the waste solution to thereby produce the recycled ceramic slurry. If the waste material of unfired ceramic includes a metal component, the metal component may be removed therefrom before the step of adjusting the composition of the waste solution.

Abstract: A card connector which is able to be connected to at least two cards, includes contacts corresponding to the number of the cards, a tray in which at least two cards can be mounted, and a housing having a fitting opening for receiving the tray therein and for arranging and holding the contacts. Also, a card connector which is able to be connected to four cards, includes four kinds of contacts, a tray having card mounting sections in which four cards can be mounted, and a housing having a fitting opening for receiving the tray therein and for arranging and holding the four kinds of contacts. With these constructions, miniaturization in height or reduced overall height of connector is possible with a simple construction.

Abstract: A card connector into and from which at least one card is inserted and removed includes a plurality of contacts each having a contact portion adapted to contact the card, and a housing arranging and holding the contacts and having a fitting opening into which the card is inserted. The housing is provided with a terminal at one end in the width direction of the housing for achieving continuity between the card and a substrate and precluding the card from being erroneously inserted with its rear end or upside down, and the housing is further provided with a notch at a predetermined position for permitting part of the terminal to extend into the fitting opening. The card connector achieves its miniaturization and is able to prevent troubles caused by the electro-static discharge and an erroneous insertion of a card into the card connector.

Abstract: A card connector includes a required number of contacts, a housing holding and arranging said contacts therein and having a fitting opening into which the card is inserted, and a switching unit for detecting the insertion and removal of the card. The switching unit includes a first switching terminal and a second switching terminal. When the card is not yet inserted into the connector, the first and second switching terminals contact each other or do not contact each other, and when the card has been inserted into the connector, the first switching terminal is displaced obliquely downward in relation to the inserting direction of the card so that the first and second switching terminals do not contact each other or contact each other, thereby enabling the inserted or removed condition of said card to be detected with great certainty.

Abstract: A connector for plural kinds of cards includes a housing, and a gate-shaped slider slidable on slide rails provided on both sides in a card inserting space in the housing. Inserting a wider and thicker card, the card engages and moves together with the slider into housing to contact contacts on one surface in the housing at a predetermined inserted position. Inserting a narrower and thinner card, the card enters an inner space of the gate-shaped slider, and while the slider remains stationary, the card arrives at a predetermined inserted position with the aid of a step having an inclined face provided in the slider, whereupon the contacting surface of the card arrives at the same level as that of the contact surface of the wider and thicker card so that the card comes into contact with the contacts to achieve an electrical connection therebetween.

Abstract: A card connector into and from which a plurality of cards are inserted and removed, includes a required number of contacts, and a housing arranging and holding the contacts and having one or plural fitting openings each into which the card is inserted. The contacts each includes contact portions to contact at least two cards so that the same contact can be brought into contact with at least two cards. The card connector has a high degree of freedom for design of substrate and connector without complicating the arrangement of connection portions of contacts and is easy to assemble and easy to mount connection portions onto a substrate by a customer or consumer.

Abstract: A card connector includes a required number of contacts, a housing holding and arranging said contacts therein and having a fitting opening into which the card is inserted, and a switching unit for detecting the insertion and removal of the card. The switching unit includes a first switching terminal and a second switching terminal. When the card is not yet inserted into the connector, the first and second switching terminals contact each other or do not contact each other, and when the card has been inserted into the connector, the first switching terminal is displaced obliquely downward in relation to the inserting direction of the card so that the first and second switching terminals do not contact each other or contact each other, thereby enabling the inserted or removed condition of said card to be detected with great certainty.

Abstract: An electric connector provided with a protector to protect damage of top of contacts by an outer force or misinsertion of mating connector or card and with construction easy for assembling. The connector body is provided with an insertion opening in a direction normal to the mating connector or card insertion direction and the protector is inserted through the insertion opening at the time of assembling and the protector is kept its normal position by the bias spring.

Abstract: An electric connector provided with a protector to protect damage of top of contacts by an outer force or misinsertion of mating connector or card and with construction easy for assembling. The connector body is provided with an insertion opening in a direction normal to the mating connector or card insertion direction and the protector is inserted through the insertion opening at the time of assembling and the protector is kept its normal position by the bias spring.

Abstract: A card connector includes a required number of contacts adapted to contact connection portions of the plurality of the memory cards, and a case arranging and holding the contacts therein and having a plurality of inserting holes for the memory cards. The connector includes at least one locking member movable or pivotally movable when a memory card is inserted, and at least one spring member displaceable when the memory card is inserted. In one aspect, a card connector includes at least one slider for forming parts of the plurality of inserting holes, and at least one holder for movably holding the slider. Consequently, the card connector is able to prevent the insertion of more than one memory card with a simple construction, to provide a miniaturized and high-density connector without any limitation of circuit board design, and easy to design its case and easy to remove the inserted card.