Abstract: A system for automatically brazing joints in a manifold has a loading station, a brazing station, and a cooling station. The brazing station has a plurality of brazing torches moveable to a joint in the manifold to braze the joint. First, second and third fixture frames extend from a common rotatable platform. The platform rotates each of the fixture frames to each of the loading station, brazing station, and cooling station in turn. The fixture frames support manifolds with joints requiring brazing. The torches are disposed on a lifting platform that lifts the torches up to a desired joint. The lifting platform is disposed on a sliding platform that slides the torches horizontally to the desired joint. The torches surround the joint and braze it from all sides simultaneously. While brazing is being performed at the brazing station, loading and unloading of manifolds may be done at the loading station, and cooling of already-brazed manifolds may take place at the cooling station.

Abstract: In a method for closing open ends of tubes, an open tube end is closed using spin-tubing methods known in the art. Following the tube end closing, a concavity is formed in the tube end in a tube end forming machine. The tube end is brazed with the tube end facing upright, so that the braze alloy pools in the concavity, strengthening the tube end.

Abstract: A system for automatically brazing joints in a manifold has a loading station, a brazing station, and a cooling station. The brazing station has a plurality of brazing torches moveable to a joint in the manifold to braze the joint. First, second and third fixture frames extend from a common rotatable platform. The platform rotates each of the fixture frames to each of the loading station, brazing station, and cooling station in turn. The fixture frames support manifolds with joints requiring brazing. The torches are disposed on a lifting platform that lifts the torches up to a desired joint. The lifting platform is disposed on a sliding platform that slides the torches horizontally to the desired joint. The torches surround the joint and braze it from all sides simultaneously. While brazing is being performed at the brazing station, loading and unloading of manifolds may be done at the loading station, and cooling of already-brazed manifolds may take place at the cooling station.

Abstract: In a method for closing open ends of tubes, an open tube end is closed using spin-tubing methods known in the art. Following the tube end closing, a concavity is formed in the tube end in a tube end forming machine. The tube end is brazed with the tube end facing upright, so that the braze alloy pools in the concavity, strengthening the tube end.

Abstract: Various embodiments of the present invention are directed to a system and method which by calculating in advance what material is to be sent to a particular device and under what conditions that material is to be delivered, the material can be delivered ahead of time and used when the conditions are met. In one embodiment, a server is used to download to certain mobile devices (or to other devices having a limited bandwidth) a portion of an advertisement campaign together with the rules for displaying the various advertisements at the mobile device. The server can, if desired, keep track of the downloaded advertisements to all of the mobile devices so that the demographics of the advertising campaign are met within the desired time frame. The server can make use of the captured information, including demographics, to select ads for delivery to the mobile client that will be more likely to be acted upon by user, or more likely to meet future criteria and be shown.

Abstract: A frequency counter employs a temperature sensitive oscillator mounted in proximity to a master crystal oscillator to provide an output frequency which varies appreciably with changes in ambient temperature and the frequency of the temperature sensitive oscillator is periodically counted and compared to a table of correction factors stored in memory to select a correction factor which is applied to the counted frequency of an input signal to provide a temperature corrected frequency count.