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Class 700/80 - Warning or alarm


Subclass of Class 700 - Data processing: generic control systems or specific applications
Definition: Subject matter where a visual or aural indication is provided
No. of patents: 213
Last issue date: 11/22/2011


          6  
NumberTitleIssue Date
4189765Digital controller
A digital controller is provided for a process control system having a centralized display of process variables and parameters, which allows an operator to alter some or all of the parameters. The controller includes both a digital display and an analog d...
02/19/1980
4189005Fire truck control means
Fire fighting system for communication and control of fire fighting equipment, such as maintaining the pressure and providing various warnings of different situations which may arise which cause a decrease in the fire fighting capability of the apparatus ...
02/19/1980
4176396Apparatus for directly measuring machine tool wear
A system for determining cutting-tool wear which utilizes a sensor for producing an output signal representing the cutting profile of the tool and a data processing system using microprocessor control which is responsive to the sensor for storing informat...
11/27/1979
4153936Energy management system
A self-contained flexible multi-purpose and multi-function energy control system capable of monitoring energy consuming loads, providing signals indicative of the state thereof and for selectively energizing and deenergizing such loads in response to a va...
05/08/1979
4106098Computer controlled apparatus for preparation of polyethylene terephthalate
A computer controlled apparatus for the preparation of high molecular weight, high quality polyethylene terephthalate polyester suitable for processing into fibers, films, and other shaped articles. The computer is interrelated with a hardware system in s...
08/08/1978
4031950Process fluid circulation and temperature control system
A process liquid circulation and temperature control system including a pump for circulating water or other process liquid through a path including a heating unit, a cooling unit, and a process apparatus that is returned to the pump; the pump and the heat...
06/28/1977
3988577Automated energy systems with computer compatibility
The invention comprises apparatus and methods for controlling and monitoring most of the energy systems used by man. An energy level to be maintained is predetermined and electronically established as a time interval. Sensing means are exposed to the actu...
10/26/1976
3987283Digital controller for punch presses and the like
A digital type controller for a punch press or the like which includes a shaft angle encoder for generating control pulses corresponding to specific main shaft angles of the machine, a plurality of sensors for generating signals in response to the operati...
10/19/1976
3978659Bumpless transfer in shifting control command between the primary and backup control systems of a gas turbine power plant
A backup control system for a gas turbine power plant having a computer implemented primary control system is disclosed. Bumpless transfer between the two control systems is effected by tracking a plurality of control signals generated by each control sys...
09/07/1976
3973434Tightening system with quality control apparatus
A tightening system for tightening a fastener is disclosed herein and includes a wrench for tightening the fastener, a control system for shutting off the wrench when the fastener has been tightened to a predetermined condition and a quality control syste...
08/10/1976
3961500Yarn runner-length controller for knitting machines
A yarn runner-length controller for warp beam knitting machines utilizes information of the yarn unwinding rate from a warp beam section and continuously compares this information to a signal related to the desired runner-length of the yarn. This continuo...
06/08/1976
3952759Liquid line break control system and method
System and method for automatically closing flow control valves and/or actuating an alarm in the event of a leak or break in a liquid pipeline. The occurrence of a leak or break is determined first by detecting the negative pressure wave which accompanies...
04/27/1976
3947665Control system and method
A console with a keyboard and visual display means is employed for setting or adjusting various controller circuit parameters such as control mode adjustments of the gain, integral and derivative times, set point, dead zone, high and low limit control and...
03/30/1976
          6  
 
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