Steiner Company, Inc.

Ares, Inc.

The Connor Winfield Corporation

Other

Allied Precision Industries Inc.

Kenneth D Hartman

Donald B Owen

Robert L Steiner

Charles R Holzner, Sr

Peter P Toulios

Matthew J Klueppel

David J Kenny

Steven A Overmyer

Charles R Holzner

A frequency correction circuit includes a temperature sensor ( ) disposed to measure temperature and produce temperature signals representing sensed temperatures. A data supplier ( ) stores information items, receives digital input signals representing and produces a digital output information signal representing an item selected in accordance with the digital input signal. A control circuit ( ) receives the temperature signals and receives the digital output information signal. The control circuit ( ) produces control signals based on the temperature signals. A clock circuit ( ) is disposed to generate a reference frequency signal. A digital synthesizer ( ) receives the reference frequency signal and the control signals. The digital synthesizer produces an output frequency signal as directed by the control signals received from the control circuit ( ).

Frequency correction circuit for a periodic source such as a crystal oscillator

A frequency correction circuit includes a temperature sensor (,) disposed to measure temperature and produce temperature signals representing sensed temperatures. A data supplier (,) stores information items, receives digital input signals representing and produces a digital output information signal representing an item selected in accordance with the digital input signal. A control circuit (,) receives the temperature signals and receives the digital output information signal. The control circuit (,) produces control signals based on the temperature signals. A clock circuit (,) is disposed to generate a reference frequency signal. A digital synthesizer (,) receives the reference frequency signal and the control signals. The digital synthesizer produces an output frequency signal as directed by the control signals received from the control circuit (,).

An air freshener dispenser includes a two-part housing including a base and a separable cover. The base carries a control circuit and the cover carries a dispensing blower and a replaceable cartridge including the freshening agent to be dispensed and a battery for powering the blower. When the cover is removed from the base the blower is connected directly across the battery for test purposes, but when it is mounted on the base, contact structure on the cover and the base cooperate so that the blower is connected to the battery through the control circuit and is controlled thereby. The control circuit turns off the blower and triggers visible and audible alarm signals after a predetermined time period and/or when the battery voltage gets too low. A photocell turns off the blower and disables the audible alarm in the dark. The time-out period of the timer is selectively changeable.

Air freshener dispenser with replaceable cartridge exhaustion alarm

An electronic martial arts training device is disclosed. The martial arts training device of the present invention includes a pliable substrate of sufficient thickness to absorb a full impact martial arts blow without injuring the deliverer thereof. A pictorial representation of a martial arts combatant is disposed on one surface of the pliable substrate and a plurality of target lights are disposed within the pliable substrate beneath the pictorial representation at locations which correspond to the 'vital-points' of the pictured combatant. Mounted within the pliable substrate in conjunction with each target light is a miniature loud speaker having a vibratable cone and a pair of electrical terminals which are coupled to the vibratable cone via a movable coil. Vibrations induced into the vibratable cone by the impact of a martial arts blow will result in an electrical signal being generated at the electrical terminals. A control circuit is then utilized to selectively illuminate the target lights and couple the electrical signal output by each associated miniature loud speaker to a scoring indicator which provides an indication of a student's proficiency.

Electronic martial arts training device

A floating electric water heater for heating livestock watering tanks which maintains the watering tank substantially ice free during low temperatures, thereby providing access to water by a plurality of animals. More particularly, the heater includes a housing supporting an electric heating element for immersion in water to be heated and to a device in the housing for monitoring and regulating operation of the heating element. The device in the housing comprises a temperature responsive switch, which is located in the housing out of contact with the water, and a thermal conductor having both a first end affixed in a thermally conductive manner to a portion of the heating element immersible in the water and a second end affixed in a thermally conductive manner to the temperature responsive switch. The improvement comprises a thermal conductor further containing an extension (cooling) portion extending from the point of connection of its second end to the temperature responsive switch into the water to be heated, such that the extension (cooling) portion is not in contact with the heating element or first end and transmits heat from the temperature responsive switch to the water. Practically, the improvement eliminates the needless cycling by the thermostat, thereby providing maximum heat output into the water when needed.

Portable temperature controlled floating electric immersion heater for a

A continuous towel dispenser includes a sensor which detects the disruption of the radio frequency (RF) field below the dispenser's cabinet caused by movement of a user's hands in withdrawing unused towel from a towel from supply roller and provides a control signal to a towel dispensing motor coupled to a supply roller allowing the towel to be dispensed for a predetermined time period corresponding to a desingated towel length. At the same time, a control signal initiates downward displacement of a towel idler bar allowing a length of used towel to also be withdrawn from the cabinet. After a predetermined time interval, e.g., 5 seconds, a towel takeup cycle is automatically initiated by upward displacement of the idler bar followed by a reversal in the direction of rotation of the towel takeup roller. The towel takeup cycle continues for a designated time period or until a stall current in a towel takeup motor is detected indicating that all of the towel has been withdrawn into the cabinet. Inhibit means prevents additional unused towel from being withdrawn during a hand drying cycle.

Electronic towel dispenser

Microwave projectile communication apparatus comprises a microwave probe fixed to a gun barrel at its muzzle end. A microwave oscillator, having a reference frequency selected for exciting the single fundamental electromagnetic mode in the barrel, is connected to the probe, for example, through a hybrid mixer configured for extracting, from moving projectile-reflected microwaves, a true Doppler signal for projectile velocity measurements. Connected between the oscillator and the probe is a signal modulator for modulating the reference oscillator signal to the probe. Connected to the signal modulator is a driver signal generator which controls the modulator in a manner enabling information, such as fuse delay time or target range, to be communicated to the projectile fuse. A conventional fire control computer may be used to provide to the modulator the data to be transmitted to the projectile. The barrel muzzle end may be internally shaped to function more effectively as a microwave antenna to enhance communication with projectiles after they have left the barrel. Corresponding methods for microwave communication with fired projectiles are provided.

Microwave-type projectile communication apparatus for guns

Projectile velocity measurement and communication apparatus comprises a microwave probe fixed to a projectile barrel near a muzzle end. An oscillator, having a reference frequency selected for exciting a fundamental electromagnetic mode in the barrel, is connected to the probe through a hybrid mixer configured for extracting, from moving projectile-reflected microwaves, a true Doppler signal having a varying frequency related to projectile barrel velocity. A processor, connected for receiving the Doppler signal, measures, by a clock oscillator, Doppler signal periods (half periods). A data presorter in the processor selects a last 'N' number of period measurements before the projectile reaches an interference position relative to the probe, to be fed to a fire control computer interface for determination therein of projectile barrel and muzzle velocities, calibration means being provided to update barrel diameter values used in such determination. An alternative, dual reference frequency variation is described, in which a dual hybrid mixer provides two independent Doppler signals, to eliminate dependency of projectile velocity determinations on barrel diameter. A reference frequency modulator and control means therefor are provided to enable microwave communication of information to the projectile, for example, of projectile target time of flight for fusing purposes. Corresponding methods for projectile velocity measurement and communication are provided.

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DeKalb, IL, United States of America

Kenneth D Hartman