Johnson Controls Gmbh

Johnson Service Company

Paul E Wichman

Richard N Laakaniemi

Scott B Bramow

Linda S Endres

Charles E Rohrer

Michael G Demeter

A personal environmental module for controlling the environment in a work space, the module including a housing having an air inlet and a pair of air outlets, a pair of dampers mounted in the air inlet, one of the dampers being connected to a preconditioned air source, the other damper being connected to room air, a pair of fans mounted in the housing in a position to allow air through the dampers, a controller for controlling the speed of the fans and the amount of air flowing through the dampers and a control panel operatively connected to the controller for setting the speed of the fan and the temperature of the air discharged through the outlets. A baffle is provided in the housing to direct a portion of the air from each fan into the air flowing from the other fan in order to mix preconditioned air with the room air. An electrostatic filter and white noise generator can be mounted in the housing and a light sensor and occupant sensor operatively connected to the controller.

Personal environmental module

A modular fluid control module having a plug-in connector is provided for control of one or more functional load devices in response to fluid condition and demand input signals. The module includes a fluid circuit board having top and bottom plate members bonded to a common center plate. The top and bottom plates each have a plurality of parallel flow lines. The first and second parallel lines are substantially perpendicularly related to define an X-Y coordinate grid. The center plate has openings establishing preselected connection of the parallel flow lines in the top and bottom plates. The top plate includes a multiple input/output port connector which includes a plurality of ports connected to the parallel flow lines of the top plate. Each of the top and bottom plates includes a plurality of plug-in logic and control ports connected to select internal flow lines of the corresponding plate. A plurality of logic devices and interrelated control devices, such as fluid transmitters, fluid repeaters, fluid comparators, fluid signal receiving devices, fluid diodes and other similar devices, are coupled to the control ports for establishing selected response to the input signals and establishing output signals for the load devices to said port connector. The control ports not connected to a control device or other port is sealed by a cap or vented to atmosphere.

Function control module for air treating systems

A modular pneumatic control apparatus controls a mixed air handling units in an air conditioning system. The apparatus includes a single configured manifold module plate having a plurality of function module plug-in connectors and a plurality of input/output plug-in connectors. Function modules have complementary plug-in connectors for connection to the manifold module are designed with common opposite outer plates having surface passageways abutting a center plate with openings to define a particular circuit. The outer plates have all external ports for defining any function module used in any system. The manifold module is a constant architecture and acts as an interface between the system sensors and load devices and the function modules which create the desired complex control systems. Only a relatively small number of function modules are required. An interactive computer based design procedure can produce a series of questions to define the necessary function modules and supporting components and connections to completely design a system with only a minimal understanding of the control instrumentation and their characteristics.

Modular fluid control apparatus and method of making

A mixed air conditioning controller is formed as a factory assembled and adjusted unit in a compact housing, with simple and direct input/output field connectors. Various temperature and humidity input devices are field connected to produce a sequenced control of the air dampers and mechanical cooling and heating devices, as well as auxiliary devices. The controller includes a primary input related to room demand, an outside air temperature input, with an interlocked control to the damper, a fan status input, a minimum air supply control and a by-pass switch having a low limit input. The logic network connecting the input/output includes pneumatic switching, pressure selecting and comparing devices of a diaphragm-controlled-orifice construction connected to function as fluidic repeaters, pressure regulating valves and pressure isolating and switching devices. The controller includes a conditioning channel and a damper channel. An outside air interlock controls the damper channel and a presettable switch controls the minimum air supply control. The presettable switch also includes a low limit temperature signal input. An auxiliary output may drive a humidity controller having a conditioning channel and a humidity channel. The humidity controller includes an interlock network connected to transfer the humidity input signal to the conditioning channel and a switch means controlled by the auxiliary output of the temperature controller.

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Brookfield, WI, United States of America

Paul E Wichman