Abstract: Apparatuses and methods are disclosed for mounting conduits within spacers for underground installation. Spacers for side loading of conduit, as opposed to older methods of end loading, allow construction workers to easily assemble conduits to a plurality of spacers above-ground. The side loading technique uses spacers having bores that communicate with each other, preferably in a radial manner. Thus, a first plurality of conduits may be assembled or mounted to an inner portion of the spacers and then at least a second plurality of conduits may be assembled and mounted to an outer portion of the spacers. Cables later pulled through the conduits are typically those used for the transmission of electricity or communication signals. Other embodiments use bores that do not communicate with each other but are secured to the spacers with an outer banding saddle.
Abstract: A printed circuit board (PCB) has a plurality of switch interfaces on its top surface. Each interface is an array of sensors, such as proximity sensors, hall-effect sensors, or a series of inductor coils. The sensors in each array are closely mounted and are all the same for a given PCB. Each array may or may not mount a non-contacting switch selected from a plurality of different types of switches, such as a single push button switch, dual push button switch, a toggle switch, a 3-position rocker switch, a rotary switch, or other type switch. Each switch mounted on the PCB includes one or more indicators for sensing by the sensors or coils, with feedback to determine what type of switch is mounted in each position. The same PCB, or other mount, may thus be used for a variety of unique applications, such as switch packs used in vehicles.
Type:
Grant
Filed:
March 30, 2007
Date of Patent:
September 7, 2010
Assignee:
ZF Friedrichshafen AG
Inventors:
Roy E. Riihimaki, Michelle D. Keimig, Richard L. Dale, Daniel Mattson
Abstract: A dual axis magnetic field detector is able to detect the presence of a magnetic field in two axes, such as a rotary axis and a linear axis. The detector includes a magnet for generating a magnetic field and two magnetic field sensors for detecting the strength and angle of the magnetic field as the magnet moves. The sensors may detect the axial and rotary displacement of an object, such as a shaft, to which the magnet is affixed.