Abstract: Structures, methods, and apparatus for protecting interconnections between components and boards in an electronic device from damage resulting from a physical shock. This damage can occur due to differential tensile forces being applied between the component and the board during a drop or other shock event. An example can reduce or prevent damage by providing differential compression forces between the component and board that can cancel differential tensile forces between the component and board during the shock event. Another example can reduce or prevent damage by reducing differential tensile forces between a component and board. Another example can secure a component to the board to directly reduce the differential force in order to prevent damage.

Abstract: A kit for the assembly of a building structure has a plurality of side walls, a floor, and a roof. The kit comprises a plurality of precut building members, each building member having end portions configured to abut adjacent building members to form a building structure, each building member having a predetermined location relative to the remaining building members in the building structure. The kit also comprises means for properly positioning predetermined building members relative to one another, the positioning means having first and second members. The first member is prefabricated to include a lip for partially overlapping a side wall and a bevelled edge. The plurality of building members may include a plurality of precut studs and rafters and the first member further may comprise a plurality of notches in spaced-apart relation, the notches being sized to permit the insertion of the studs therein.

Abstract: A building kit is provided for the assembly of a building structure. The kit includes a plurality of building members having selected lengths and configurations. Each building member occupies a designated position in a mating engagement with at least one other companion building member to form the building structure. The building members include coded sections to provide a visual indication of which building members are to be coupled in the mating engagement, thereby facilitating assembly of the building structure. A door frame assembly can be included with the building kit. The door frame assembly includes a plurality of building members having integral connector portions to couple adjacent building members to form the door frame.

Abstract: A DC-to-DC converter charges a capacitor connected to the secondary of a transformer having a primary connected to a low-level power supply through an input control circuit which, when triggered, connects the power supply to the primary for only a predetermined time interval whereby current flows in the primary establishing a magnetic field that stores energy derived from the power supply. When the current in the primary is interrupted, the field collapses, inducing current to flow in the secondary thereby transferring energy from the field to the capacitor. The control circuit is triggered by a voltage sensor that detects the collapse of the field to zero. The voltage sensor includes a sensor inductively coupled to the magnetic field for developing a sensed voltage having a first level during collapse of the field and a second level after the field collapses to zero, the breakpoint between the levels defining the instant at which the field collapses to zero.