Abstract: A liquefied gas system and method can supply gas from a liquefied gas container more efficiently by using an external stabilizing device. The liquefied gas is located under its own vapor pressure in the lower portion of the container. As the vapor is withdrawn from the container at ambient pressure, the liquid evaporates at an equivalent rate to account for the decrease in pressure. The stabilizing device surrounding the liquefied gas container efficiently transfers the ambient external heat to the liquid thus allowing more liquefied gas to be vaporized.

Abstract: Methods for fabricating printed circuit boards, devices for use in the fabrication of printed circuit boards, and structures for a printed circuit board. A mold may be formed as a device that includes a plurality of features, such as recesses, corresponding to a layout of a plurality of conductors for the printed circuit board. A sheet comprised of an electrically-conductive material may be deformed to match the features of the mold. A substrate may then be added to support the sheet, and the sheet may be selectively removed with a mechanical process to define the conductors of the printed circuit board.

Abstract: Methods for fabricating printed circuit boards, devices for use in the fabrication of printed circuit boards, and structures for a printed circuit board. A mold may be formed as a device that includes a plurality of features, such as recesses, corresponding to a layout of a plurality of conductors for the printed circuit board. A sheet comprised of an electrically-conductive material may be deformed to match the features of the mold. A substrate may then be added to support the sheet, and the sheet may be selectively removed with a mechanical process to define the conductors of the printed circuit board.

Abstract: A low energy electromagnetic relay and method of reducing power consumption in electromagnetic relays. The electromagnetic relay includes an electrical coil having a first end connected to a first contact and a second end connected to first side of a normally closed switch, a second side of the switch connected to a second contact; a resistor connected between the first end of the coil and the second contact; and an armature configured to move to an actuated position and open the first switch when power is applied across the first and the second contacts.

Abstract: A gas cabinet and a method of controlling air flow through said gas cabinet. The gas cabinet includes an enclosure; a damper having at least two flow rate positions; an exhaust outlet; a set of sensors; and a programmable logic controller configured to change a flow rate position of the damper from a first flow rate position to a second flow rate position based on the state of the sensors. The method includes using the damper to lower the amount of exhausted air required under normal operating conditions and using the damper to increase the amount of exhausted air when a possible gas leak is detected.

Abstract: A low energy electromagnetic relay and method of reducing power consumption in electromagnetic relays. The electromagnetic relay includes an electrical coil having a first end connected to a first contact and a second end connected to first side of a normally closed switch, a second side of the switch connected to a second contact; a resistor connected between the first end of the coil and the second contact; and an armature configured to move to an actuated position and open the first switch when power is applied across the first and the second contacts.