Abstract: To improve the stiffness of a thin single layer or mono-sheet of steel, a composite steel comprising at least two outer steel layers separated with a spacer. Spacer materials can include any metal less dense than steel, or a polymer or resin, optionally comprising a carbon or glass fiber, or Kevlar material. Such a composite steel can yield a higher stiffness than a mono-sheet of steel having the same total sheet thickness. For instance, moving the steel material away from the neutral axis with the spacer can increase the strain on bending to provide a high strength composite steel that maintains stiffness while also providing desirable weight savings.

Abstract: A power trigger system for cage-type animal traps includes a catch member, a movable latch and a spring operable between the catch mechanism and the latch feature to exert a force tending the latch feature toward powered disengagement from the cage door. A corresponding method of triggering a cage trap to catch an animal is provided.

Abstract: A heat exchanger design is described which includes header plates, apertures, seals and flow tubes. A plurality of apertures in at least one header plate are configured to allow a flow tube to be inserted into or removed from the aperture as a whole at an angle. A seal is included within the aperture and is supported by differing diameters of the aperture wall. The seal engages the flow tube in a manner to allow high pressure operation of the heat exchanger when the flow tube is perpendicular to the header plate.

Abstract: According to one embodiment, a method is described. The method includes receiving a request from a client computer sited on a first network to access one or more media files at a data server sited on a second network, determining whether a predetermined number of media files stored at the client computer would be exceeded if the one or more media files are transmitted to the client computer, and transmitting the one or more media files from a distribution server sited on the first network to the client computer if the predetermined number of media files stored at the client computer would not be exceeded if the one or more media files are transmitted to the client computer.