Abstract:
A method and apparatus are provided for sensing the mass flow rate of a fluid flowing through a pipe. A light beam containing plural individual wavelengths is projected from one side of the pipe across the width of the pipe so as to pass through the fluid under test. Fiber optic couplers located at least two positions on the opposite side of the pipe are used to detect the light beam. A determination is then made of the relative strengths of the light beam for each wavelength at the at least two positions and based at least in part on these relative strengths, the mass flow rate of the fluid is determined.
Abstract:
A cast composite material is prepared by furnishing an aluminum-based matrix alloy and forming a mixture of free-flowing boron carbide particles and the aluminum-based matrix alloy in molten form which is stirred to wet the matrix alloy to the boron carbide particles and to distribute the particles throughout the volume of the melt. The molten mixture is then cast. The fluidity of the molten mixture is maintained by (a) maintaining the magnesium content of the matrix metal below about 0.2% by weight, or (b) starting with a matrix metal containing less than 0.2% by weight magnesium and adding further magnesium to the mixture a short time before casting, or (c) having at least 0.2% by weight titanium present in the mixture.
Abstract:
A self-guided apparatus for repelling birds through various means of deterrence. The device comprises a chassis, a floatation assembly, a propulsion system, and a guidance and control system. The device may operate in either of at least two modes: passive and active. In the passive mode, the device traverses a predefined area, scaring birds away. In the active mode, the device surveys a designated area and, upon detection of birds, propels itself towards the birds and drives them away.
Abstract:
This invention relates generally to novel fibers and fabrics. Specifically, these fibers are prepared using propylene impact copolymer compositions. Fabrics, particularly nonwoven fabrics, formed from these fibers exhibit improved elongation properties.
Abstract:
A lightweight, substantially unpadded, comfortable, push-in underwire bra has, when worn by a female wearer, a front including a pair of cups. Each cup defines upper inner and outer portions, lower inner and outer portions, a top and a bottom, and is configured and dimensioned to hold substantially one breast of a female wearer. Each cup defines an underwire receiving channel extending downwardly from the cup upper outer portion and then inwardly across the cup bottom to the cup lower inner portion where the channel terminates. A single underwire-free channel extension connects the channels of the cups only at the lower inner portions thereof, the cups being connected at the front only by the channel extension, thereby to provide a deeply plunging cleavage and enable substantial independent motion of the cups relative to one another. For each cup, a thin, arcuate underwire is disposed in the channel and biases the cup upper outer portion inwardly. Thus, the underwires bias the cup upper outer portions inwardly to provide push-in cleavage on the wearer's breasts. Straps are secured to the front for releasably supporting it on a female wearer with the breasts of the female wearer substantially within the cups.
Abstract:
A system and method for intelligent management of an array of fans. The system uses mean-time-between-failure, fan usage and other data in add ventilation, subtract ventilation and recycle array routines to maximize the life of the fans and the array. The system comprises a primary embodiment making use of smart fans in the array, each smart fan including a fan and appropriate control electronics capable of processing commands received from a smart fan array controller. Fan control signals are multiplexed over a local operating network power line using carrier communication protocols, command messages and data values, all to accomplish a goal of the system to maximize fan life. In an alternate embodiment, fan and array control electronics are integrated onto the fan array controller itself and power is provided to conventional fans using a conventional wiring harness.
Abstract:
Devices for maintaining the mouth of a bag in an open condition. The device may comprise a housing with a cavity and at least one opening, and at least one support band which is at least partially positioned in the cavity, wherein a first end of the at least one support band is located in the cavity and at least a portion of the at least one support band extends exterior of the housing, and the at least one support band has at least two positions relative to the housing, a retracted condition in which a majority of the at least one support band is positioned in the cavity and an extended condition in which less than a majority of the at least one support band is located exterior to the cavity.
Abstract:
A golf club handle apparatus is used with a golf club having a longitudinally extending hand grip and includes an elongated shaft, a handle structure, a forearm support member and a connector. The shaft extends along a longitudinal axis and has a first portion, a second portion and an intermediate portion disposed between the first and second portions. The handle structure includes a pair of handles connected to the intermediate portion and spaced apart from one another in a generally parallel relationship with the shaft positioned between the pair of handles. Each one of the pair of handles extends along a respective handle axis that is oriented generally perpendicularly to the longitudinal axis. The forearm support member is connected to the first portion and has a forearm support surface spaced apart and facing away from the shaft. The connector is disposed at the second portion and is operative to connect the hand grip of the golf club and the golf club handle apparatus together. Another embodiment of the invention integrates the golf club handle apparatus with a conventional golf club.