Abstract: A metallic tubular member having a closed end member for use in heating, ventilation, and air conditioning (HVAC) systems or refrigeration systems and method of manufacturing are presented. In one instance, the method includes providing a metallic tubular stock member having a first end and a second end, wherein the first end is open and closing the first end of the metallic tubular stock member to form a first closed circular member having an outside diameter D1; forming a sealing aperture having an outside diameter D2 through the first closed circular end, wherein D2 is less than 5 percent of D1; and applying a heat-based sealing process including a metallic flow into the sealing aperture. Other methods and systems are presented.

Abstract: A metallic tubular member having a closed end member for use in heating, ventilation, and air conditioning (HVAC) systems or refrigeration systems and method of manufacturing are presented. In one instance, the method includes providing a metallic tubular stock member having a first end and a second end, wherein the first end is open and closing the first end of the metallic tubular stock member to form a first closed circular member having an outside diameter D1; forming a sealing aperture having an outside diameter D2 through the first closed circular end, wherein D2 is less than 5 percent of D1; and applying a heat-based sealing process including a metallic flow into the sealing aperture. Other methods and systems are presented.

Abstract: A spring-loaded device is installed into a node housing at a predetermined location. The predetermined location is selected to correspond to another predetermined location into which a stinger may be installed. These predetermined locations on the node housing are selected to further correspond to a predetermined internal location of an RF interface connector. A conducting pin of the RF interface extends through a dielectric between a nail head shaped end, which provides electrical connection with the stinger projection, and an end soldered to a PCB of the amplifier. The amplifier may be installed and the node housing closed before the stinger and spring-loaded device are installed into the housing. This facilitates installation of the stinger into the housing without having to open the housing and remove the amplifier. External threads on the spring-loaded device facilitate installation thereof, but a unique torque is not required therefor.

Abstract: A spring-loaded device is installed into a node housing at a predetermined location. The predetermined location is selected to correspond to another predetermined location into which a stinger may be installed. These predetermined locations on the node housing are selected to further correspond to a predetermined internal location of an RF interface connector. A conducting pin of the RF interface extends through a dielectric between a nail head shaped end, which provides electrical connection with the stinger projection, and an end soldered to a PCB of the amplifier. The amplifier may be installed and the node housing closed before the stinger and spring-loaded device are installed into the housing. This facilitates installation of the stinger into the housing without having to open the housing and remove the amplifier. External threads on the spring-loaded device facilitate installation thereof, but a unique torque is not required therefor.

Abstract: An enclosure for providing abundant convection cooling to components placed therein while protecting the components from environmental factors external to the enclosure. Wall, roof and floor structures form a compartment for containing the components; the wall structures define openings for air passage into the compartment through a bottom opening and out of the compartment through a top opening, as internally warmed air is moved by convection through the enclosure. Louvers in the walls prevent precipitation and other external environmental elements from entering the compartment through the bottom openings. An overhang eave of the roof has a lip that extends downwardly to prevent precipitation intrusion through the top opening or openings. Screen material internally affixed to the walls covers the openings to prevent entry of insects and small animals to the inside of the compartment.

Abstract: An enclosure for providing abundant convection cooling to components placed therein while protecting the components from environmental factors external to the enclosure. Wall, roof and floor structures form a compartment for containing the components; the wall structures define openings for air passage into the compartment through a bottom opening and out of the compartment through a top opening, as internally warmed air is moved by convection through the enclosure.