Abstract: The present invention is a plasma cutting apparatus (A) configured such that a starting gas is switched to plasma gas at the stage when current is applied to an electrode provided to a plasma torch, and a plasma arc is produced at a preset current value on a material (B) to be cut, so as to extend the life of the electrode, wherein the apparatus is configured to have: a starting gas supply unit (2) having a starting gas solenoid valve (2b) provided with a starting gas supply source (2a) and a starting gas pipeline (2c); a plasma gas supply unit (3) having a plasma gas solenoid valve (3b) provided with a plasma gas supply source (3a) and a plasma gas pipeline (3c); a plasma gas connection part (8) for connecting the downstream-side end part of the starting gas supply unit and the downstream-side end part of the plasma gas supply unit; a gas pipeline part (5) for connecting the plasma gas connection part (8) and a torch body (1a); a flow retention member (4) provided to the gas pipeline part; and a control devi

Abstract: The present invention is a plasma cutting apparatus (A) configured such that a starting gas is switched to plasma gas at the stage when current is applied to an electrode provided to a plasma torch, and a plasma arc is produced at a preset current value on a material (B) to be cut, so as to extend the life of the electrode, wherein the apparatus is configured to have: a starting gas supply unit (2) having a starting gas solenoid valve (2b) provided with a starting gas supply source (2a) and a starting gas pipeline (2c); a plasma gas supply unit (3) having a plasma gas solenoid valve (3b) provided with a plasma gas supply source (3a) and a plasma gas pipeline (3c); a plasma gas connection part (8) for connecting the downstream-side end part of the starting gas supply unit and the downstream-side end part of the plasma gas supply unit; a gas pipeline part (5) for connecting the plasma gas connection part (8) and a torch body (1a); a flow retention member (4) provided to the gas pipeline part; and a control devi

Abstract: An optical module includes a laser device, a thermal conduction member, a Peltier device disposed between the laser device and the thermal conduction member, a heat radiation part, and a variable thermal-resistance device disposed between the thermal conduction member and the heat radiation part, the variable thermal-resistance device changing a thermal resistance between the thermal conduction member and the heat radiation part according to an ambient temperature.

Abstract: An optical module includes a laser device, a thermal conduction member, a Peltier device disposed between the laser device and the thermal conduction member, a heat radiation part, and a variable thermal-resistance device disposed between the thermal conduction member and the heat radiation part, the variable thermal-resistance device changing a thermal resistance between the thermal conduction member and the heat radiation part according to an ambient temperature.

Abstract: A sealed plate type metallic heat pipe is disclosed having multiple independent through holes which run through the inside of the heat pipe. All of the through holes are connected in fluid communication at each end. A working fluid is disposed in the through holes and a wire or a wire mesh is disposed in at least one of the through holes.

Abstract: Disclosed is a low-profile card connector comprising a U-shaped housing; terminals mounted in the housing; and a card ejector comprising a rotary lever and an ejection rod for turning the rotary lever. The rotary lever comprises front and rear sections. The front section is contiguous with the rear section, and is in a plane lower and parallel to the rear section. The front section is rotatably fixed to the main body, and is covered by a cover member, which is assembled to the main body and the overlying front section of the rotary lever to be coplanar with the rear section of the rotary lever.

Abstract: Disclosed is a card connector equipped with an eject mechanism that includes a rotary lever and an ejection rod with a catch tab formed thereon for preventing the card from being inadvertently removed or disengaged from the connector particularly in high vibration environments. The card connector includes an insulating housing having two parallel longitudinal extensions extending from lateral sides of the housing. One longitudinal extension has a support frame fixed to its outer side for accommodating movably the ejection rod. The support frame has two guide projections formed thereon, and the ejection rod has a corresponding guide slot within which the guide projections are received. The two guide projections are staggered that one may be close to the longitudinal extension, and that the other may be apart from the longitudinal extension whereas the guide slot has an intermediate oblique section between the leading and trailing straight sections.

Abstract: Disclosed is a card connector equipped with an eject mechanism that includes a rotary lever and an ejection rod with a catch tab formed thereon for preventing the card from being inadvertently removed or disengaged from the connector particularly in high vibration environments. The card connector includes an insulating housing having two parallel longitudinal extensions extending from lateral sides of the housing. One longitudinal extension has a support frame fixed to its outer side for accommodating movably the ejection rod. The support frame has two guide projections formed thereon, and the ejection rod has a corresponding guide slot within which the guide projections are received. The two guide projections are staggered that one may be close to the longitudinal extension, and that the other may be apart from the longitudinal extension whereas the guide slot has an intermediate oblique section between the leading and trailing straight sections.

Abstract: Disclosed is a low-profile card connector comprising a U-shaped housing; terminals mounted in the housing; and a card ejector comprising a rotary lever and an ejection rod for turning the rotary lever. The rotary lever comprises front and rear sections. The front section is contiguous with the rear section, and is in a plane lower and parallel to the rear section. The front section is rotatably fixed to the main body, and is covered by a cover member, which is assembled to the main body and the overlying front section of the rotary lever to be coplanar with the rear section of the rotary lever.