Alnor Instrument Company

Other

Fluid Management Limited Partnership

Price R Hodson

Paul F Haake

James W Oram

Roland Simonis

Arnold Buchanan

Robert E Montividas

Alan Mersereau

Federico Chu

Alan Jenks

Edward G Thomas

Bruce Moeller

Mandy Chubin

A method and system for configuring and/or re-configuring an office device to satisfy each user's particular needs. Such a system allows a user to determine at user defined intervals, i.e., each use, monthly, or project based, what the user's needs are or will be and then access, via the Internet or intranet or some other means, a service center wherein the user can download or access via a code the desired, appropriate applications for the device.

Method and system to remotely configure business office devices to user defined parameters

Mixing apparatus

A fluid flow detection monitor (80), particularly useful in monitoring pressure differentials between a controlled environment and its surroundings, includes a heat source (1) situated between an upstream and downstream thermal sensor (2,3) within a channel (5). The electrical resistance of the downstream sensor varies as the downstream sensor is heated from fluid carried past the heat source. Circuitry is used to detect the electrical resistance differential between the thermal sensors, thereby detecting the presence of fluid flow.

Fluid flow direction and velocity monitor

A modular metering instrument including one of a plurality of sensing probes or probe modules including identification and calibration information stored therein and a meter module which can identify the sensing probe when the sensing probe is connected thereto. The storage of calibration and identification information in the sensing probe allows the meter module to be utilized with any one of a number of sensing probes to sense different physical parameters. The sensing probe includes at least one sensor and related circuitry to generate a signal relating to the sensed parameter. The meter module analyzes and calibrates the signal and displays the measured parameter.

Modular metering instrument including multiple sensing probes

A temperature compensated air flow monitor which measures true flow velocity or volume flow. The air flow monitor can be mounted in or coupled to a fume hood and includes a fluid flow tube having a pair of thermistors mounted therein. A first cold thermistor is utilized to provide temperature compensation to the second hot thermistor which provides the fluid flow velocity measurement. The pair of thermistors can be mounted to or in a probe for a portable air flow monitor application. The measured flow velocity or volume flow can be utilized in a display for the operator and also can activate one or more alarms when the flow velocity varies from a desired range.

Air flow monitor and temperature compensating circuit therefor

An improved selector provides for air paths between a meter and an air volume sensing manifold that are similar for both up and down flow of air through the apparatus thereof. This provides similar momentum losses in the air reaching the meter for both air up and down flow through the apparatus to obtain more accurate meter readings of the air flow volume. Separate throttling screws are provided for the throttling orifices, providing different range selections, and are independently adjusted to compensate for minor air passage differences in the selector, and air flow pattern differences in up and down flow. A calibrated area reducer in the form of a sheet of perforated stock is positioned upstream in the throat in contact with the manifold to extend the measuring range of the apparatus while minimally disturbing the air flow patterns through the apparatus.

Air flow volume measuring apparatus

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Glen Ellyn, IL, United States of America

Price R Hodson