Abstract:
A switch actuator providing a floating operating and release point switch including a base, a plunger having an exposed operating end mounted for movement on the base, a mount for relatively movable switch contacts on the base, and a friction piece normally grasping the plunger so as to be movable therewith and yet be relatively movable with respect to the plunger when movement of the friction piece is resisted. The friction piece is oriented with respect to the mount such that movement of the friction piece may effect relative movement between relatively movable switch contacts mounted to the base.
Abstract:
A method and apparatus is disclosed that is capable of verifying on site the health, calibration and integrity of individual phased array modules of a phased array antenna system and, in certain cases, enabling the phased array antenna system to overcome element failures by use of a beam-steering computer. The present disclosure provides a test probe or RF radiator in or adjacent the antenna array for supplying and receiving test and calibration signals.
Abstract:
A method and apparatus is disclosed that is capable of verifying on site the health, calibration and integrity of individual phased array modules of a phased array antenna system and, in certain cases, enabling the phased array antenna system to overcome element failures by use of a beam-steering computer. The present disclosure provides a test probe or RF radiator in or adjacent the antenna array for supplying and receiving test and calibration signals.
Abstract:
Concrete products, and products similar to concrete to create manmade stone-like structures, are formed with embedded paths, i.e. embedded signal pipes, for light and/or electrical current, to create microprocessor control surfaces for remotely located microprocessors. The light and/or electrical current travels through the signal pipes to activate, run or otherwise control or communicate through the microprocessor for the operation of one or more appliances.
Abstract:
A safety apparatus for a door is disclosed, the safety apparatus comprising a first member mounted to a door frame and a second member communicating within the first member in response to an outwardly biased spring. A guide is formed on a wall of the first member. A dowel pin projects from the second member, wherein the dowel pin communicates with the guide. The guide has at least a first pathway receiving the dowel pin to allow the door to close. The spring has torque along the length of the spring for urging movement of the dowel pin within the first pathway so that the door may close.
Abstract:
A high speed flexible interconnect cable includes a number of conductive layers and a number of dielectric layers. Conductive signal traces, located on the conductive layers, combine with the dielectric layers to form one or more high speed electrical transmission line structures. The transmission line structure may be realized as a grounded coplanar waveguide structure. The cable can be coupled to destination components using a variety of connection techniques. The cable can also be terminated with any number of known or standardized connector packages.
Abstract:
A collapsible container for a truck bed includes a weather resistant, flexible envelope. There are two frames engaged with two ends of the envelope, respectively, and two support members connected with each of two side walls of the envelope. The support members are pivotable relative to each other and the frames. The collapsible container may be extended for use as a container with the envelope supported by the frames and the support members to define a substantially box shaped enclosure. The collapsible container may also be folded for storing, with the frames and the support members arranged in a stacked relationship.
Abstract:
A high speed flexible interconnect cable for an electronic assembly includes a number of conductive layers and a number of dielectric layers. Conductive signal traces, located on the conductive layers, combine with the dielectric layers to form one or more high speed electrical transmission line structures. The cable can be coupled to electronic components using a variety of connection techniques. The cable can also be terminated with any number of known or standardized connector packages.
Abstract:
A door stop which includes a bracket that is mountable on a face of a door and has an elongate leg pivotally connected adjacent one end thereof to the bracket. The leg has a laterally extending floor engagable foot on the other end thereof that slopes downwardly in a direction toward the floor and terminates in an edge that digs into the floor as the door is being force open. The leg is squeezingly engaged between a pair of grommets on the bracket which holds the leg is a raised position. A tension spring biases the foot from its raised position in a direction toward the floor. An actuator is mounted on the door and has a hand engagable portion disposed adjacent the door knob. The actuator is a rod that is reciprocally mounted on the door and spring biased to a neutral position. The rod upon being pushed downwardly engages and released the leg so that it is free to snap downwardly into its floor engaging door blocking position. Optionally there is tie strap that extends downwardly from the bracket and terminates in a portion that projects under a lower edge of the door.
Abstract:
A plate, an electrical interconnect formed by the plate, and a fuel cell assembly incorporating the electrical interconnect. The electrical interconnect is for use in a fuel cell stack. The fuel cell assembly is for use in the electrochemically active section of a fuel cell stack. The assembly includes one or more membrane electrode assemblies (MEA), each disposed between two flow field plates that distribute fuel and oxidant to the anode and the cathode, an additional flow field plate for passing coolant in order to cool the assembly and, possibly, a buss plate. At least one of the buss plates is an electrical interconnect of the present invention. The electrical interconnect is constructed to include one or more electrically conductive tabs, where one or more of the tabs are in turn coupled to a fuel cell health management (FCHM) device that is able to monitor, control, rejuvenate, supplement, and bypass the fuel cell assembly through the connection made via the tabs. The tabs may also be utilized as mounts and heat sinks for high power electronic components associated with the FCHM, the heat generated by these FCHM components being dissipated by the fuel cell stack cooling system. The plate members are made from a highly electrically conductive material such that the voltage drop across each plate member provided by an FCHM is small thus allowing the current density across the MEA to be essentially uniform since the voltage throughout the area of the plate is more uniform that in the usual plate design. The material of the plate member is advantageously selected based on its electrical and thermal conductivities and its chemical stability in the operating environment of the fuel cell.