Abstract: The present invention is an ear flap hat that is designed to be worn in both good and bad weather. The hat gives the wearer the flexibility of wearing the hat with the ear flaps down covering the wearer's ears or positioning the ear flaps in an up position on the crown of the wearer's head so that the wearer's ears are exposed. A cord and cord lock are also included with this hat so that the wearer can tighten the cap down and affix it to their head when the ear flaps are down. The cord can also be used to hold the ear flaps in the up position when they are not covering the wearer's ears. When the ear flaps are in the down position, covering the wearer's ears, the cord can be positioned in the back of the wearer's neck or under the wearer's chin depending on the desired tightness and the weather conditions. The hat will be less likely to fly off during gusts of high wind when the cord is positioned under the wearer's chin.

Abstract: An instrument employs a high-pass filter and an associated amplifier to reduce the number of Analog-to-Digital-Converter bits required to determine the amplitude of harmonics contained in digitally sampled AC (alternating current) power system voltage or current waveforms. The instrument is coupled to a power system having a line conductor and a neutral conductor for obtaining time-domain representations of the current flowing in the line conductor and the voltage difference between the line conductor and the neutral conductor. The time-domain representations are converted to frequency-domain representations by a single-chip microprocessor.

Abstract: A foot platform is provided which can be adjusted horizontally towards and away from an operator, up or down relative to the operator, and angularly between vertical and horizontal to provide a comfortable platform for the operator to rest a foot during operation of a piece of equipment, and optionally including an attachment for a foot pedal actuating device so that a seated operator can control the foot pedal with either foot while resting the other foot on a foot rest of the present invention.

Abstract: Antivenoms suitable for treatment of humans and animals as well as for analytical use. A method wherein individual venoms are used to immunize and the resulting antivenoms are, thereafter, purified individually prior to mixing. Immunization is performed in a mammalian or avian host species.

Abstract: The preferred embodiment includes a method and apparatus for generating a comma code. A data word having a value m is received. A binary storage apparatus receives the data value. A storage apparatus is coupled to the output of the address calculator. The storage apparatus includes a plurality of single bit storage elements that are arranged to provide an M bit output. Each single bit storage element is initialized to a first value. The address calculator calculates the appropriate single bit storage element to be selectively inverted.

Abstract: A U-lock includes a detachable header with extensions that fit around the arras of the U-bar and extend along the length of those arms to provide strength to the U-lock. The header can be used so that its base is locked at the end of the arms of the U-shaped bar or it can be inverted when locking smaller objects so that its base is locked along the lengths of the arms taking up some of the gap between the locked object and the base of the header. The header is locked to the arms of the U-shaped bar by a locking mechanism which secures the header to the arms of the U-shaped bar in four different places, two on each arm. The U-lock and header with extensions can also be used in combination with security spacers for further security.

Abstract: A threaded fastener has a casing enclosing at least three radially inwardly biased arcuate segments positioned to engage the threads of a bolt or hollow threaded member. The casing defines spaced apart internal frustoconical surfaces positioned to engage corresponding surfaces of the segments in the same axial direction. The radially inner ends of the frustoconical surfaces are directed toward a first end of the fastener, and the diameter of the radially inner end of the frustoconical surface away from the first end of the fastener is less than the radially outer diameter of the other frustoconical surface. The threads of the segments substantially fully engage the threads of the bolt or hollow threaded member.

Abstract: A process for determining the presence of either speech or one of a plurality of expected single-frequency signals on a line includes the steps of measuring the total signal energy on the line; measuring the signal energy present in each one of a plurality of selected separate frequency bands and identifying the two frequency bands having the highest signal energies; determining whether the highest signal energy exceeds a first selected threshold value; determining whether the highest signal energy exceeds the second highest signal energy by greater than a second selected threshold value; determining the amount of out-of-band signal energy; and determining whether the highest signal energy exceeds the out-of-band signal energy by greater than a third selected threshold value.

Abstract: A method for real-time recognition of speech and call-progression tone energy includes the steps of digitizing an analog signal present on a signal line, correlating N neighboring portions of the digitized signal, performing FFT analysis on the digitized signal, identifying the three largest frequency-domain maxima, determining whether the two largest maxima are above a threshold frequency, and determining whether the ratio of the largest to the third largest maxima exceeds a predetermined value. According to the present invention, the steps of the method may be performed in real time using fixed-point hardware by approximating the correlation and FFT functions.

Abstract: A router dust hood has a sub base which attaches to the base plate of a router. A dust hood slides over the motor and is coupled to the sub base. The handles of the router are taken off and mounted on to the hood. A top rubber casing slides over the motor and is coupled to the top of the dust hood. A vacuum is coupled to the dust hood for the removal of chips and dust from the work area. The sub base raises the router off the work surface allowing more air volume around the router bit to aid in the quickened removal of dust and chips from the work area into the vacuum. The sub base is circularly designed, with an outer lip, allowing an operator to guide the router on a template.

Abstract: An electric power measuring system wherein the watt-hour measurements are adjusted to account for the economic effects of harmonic currents and voltages. Well known techniques are used to acquire frequency spectra that represent the voltages and currents present at the measuring point. These spectra are used to calculate power flow direction and magnitude at various frequencies. Weighting functions are applied to power flows at frequencies other than the fundamental frequency. The weighted power flow is used to calculate an harmonic-adjusted watt measurement, which is then accumulated to form a harmonic-adjusted watt-hour measurement. The weighting functions can be selected to provide an economic incentive for a power consumer to consume power in a way that matches the goals of the power provider.

Abstract: An electric power measuring system wherein power factor measurements are adjusted to reflect the adverse economic effects of harmonic currents and voltages. Well-known techniques are used to acquire frequency spectra that represent the voltages and currents present at the measuring point. These spectra are weighted in such a way that non-fundamental currents are increased and non-fundamental voltages are decreased. The weighted spectra are used to calculate a harmonic-adjusted volt-ampere measurement, which is then accumulated to form a harmonic-adjusted volt-ampere-hour measurement. The weighting functions for voltage and current are selected to approximate the economic impact on the AC power generating, transmission, and distribution system of non-fundamental currents and voltages. The resulting harmonic-adjusted volt-ampere-hour measurement is used to calculate a harmonic-adjusted power factor measurement.

Abstract: An instrument for measuring voltage harmonics and current harmonics on AC (alternating current) power systems. The instrument includes the ability to determine when threshold limits have been exceeded for harmonics. The instrument also includes timing thresholds whose inputs are activated when the harmonic thresholds are exceeded. A single harmonic threshold is applied to measurements from multiple phases on poly-phase systems by comparing the square rot of the sum of the squares of measurements from each phase to the harmonic threshold. Three indicators show when voltage harmonic limits are exceeded, current harmonics limits are exceeded, or both voltage and current harmonic limits are exceeded simultaneously.

Abstract: An electric power measuring system wherein power factor measurements are adjusted to reflect the adverse economic effects of harmonic currents and voltages. Well-known techniques are used to acquire frequency spectra that represent the voltages and currents present at the measuring point. These spectra are weighted in such a way that non-fundamental currents are increased and non-fundamental voltages are decreased. The weighted spectra are used to calculate a harmonic-adjusted volt-ampere measurement, which is then accumulated to form a harmonic-adjusted volt-ampere-hour measurement. The weighting functions for voltage and current are selected to approximate the economic impact on the AC power generating, transmission, and distribution system of non-fundamental currents and voltages. The resulting harmonic-adjusted volt-ampere-hour measurement is used to calculate a harmonic-adjusted power factor measurement.

Abstract: An electric power measuring system wherein the watt-hour measurements are adjusted to account for the economic effects of harmonic currents and voltages. Well known techniques are used to acquire frequency spectra that represent the voltages and currents present at the measuring point. These spectra are used to calculate power flow direction and magnitude at various frequencies. Weighting functions are applied to power flows at frequencies other than the fundamental frequency. The weighted power flow is used to calculate an harmonic-adjusted watt measurement, which is then accumulated to form a harmonic-adjusted watt-hour measurement. The weighting functions can be selected to provide an economic incentive for a power consumer to consume power in a way that matches the goals of the power provider.

Abstract: An instrument for measuring voltage harmonics and current harmonics on AC (alternating current) power systems The instrument includes the ability to determine when threshold limits have been exceeded for harmonics. The instrument also includes timing thresholds whose inputs are activated when the harmonic thresholds are exceeded A single harmonic threshold is applied to measurements from multiple phases on poly-phase systems by comparing the square root of the sum of the squares of measurements from each phase to the harmonic threshold. Three indicators show when voltage harmonic limits are exceeded, current harmonics limits are exceeded, or both voltage and current harmonic limits are exceeded simultaneously.

Abstract: An electric power measuring system wherein the watt-hour measurements are adjusted to account for the economic effects of harmonic currents and voltages. Well known techniques are used to acquire frequency spectra that represent the voltages and currents present at the measuring point. These spectra are used to calculate power flow direction and magnitude at various frequencies. Weighting functions are applied to power flows at frequencies other than the fundamental frequency. The weighted power flow is used to calculate an harmonic-adjusted watt measurement, which is then accumulated to form a harmonic-adjusted watt-hour measurement. The weighting functions can be selected to provide an economic incentive for a power consumer to consume power in a way that matches the goals of the power provider.