Patents Represented by Attorney Donald J. Lenkszus

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  • Layout device for wall mounted item
    Patent number: 5020235
    Abstract: A layout device for locating a wall mounted item a specified distance from a reference point such as a floor includes a bracket which is removably mounted to a measuring tape. A level attached to the bracket indicates vertical alignment of both the extended tape and the item which is to be installed. The bracket includes protrusions which form indentations marking the measured location when the bracket is forced against the surface of the wall.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: June 4, 1991
    Assignee: Honeywell Inc.
    Inventor: Ronald L. Martin
  • Extended RF range alarm system
    Patent number: 5004999
    Abstract: A wireless alarm system utilizes pulsed FM transmissions to increase the effective range of the system while meeting FCC requirements for radiated signal strength. The effective range of the system is increased by shortening the duty cycle and increasing the signal strength during the on-time. This results in a low average RF signal strength, however, an increased transmission distance is achieved.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: April 2, 1991
    Assignee: Honeywell, Inc.
    Inventors: Jon P. Hartmann, Ted W. Glasener
  • Programmable microcontroller microbus connector arrangement
    Patent number: 4968267
    Abstract: A connector arrangement for an electronic controller includes a plurality of insulation displacement terminals. The connector has a body portion and cover portion. The cover portion includes tabs which will force a wire onto the insulation displacement terminal so that electrical connectors are made. In one embodiment, the connector is connected to a standard phone cable which, in turn, terminates in a modular phone plug.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: November 6, 1990
    Assignee: Honeywell Inc.
    Inventor: Peter P. Payne
  • Valve noise reduction
    Patent number: 4967998
    Abstract: In a valve having a plug and valve seat for controlling the flow of fluid between an inlet port and an outlet port, the plug has radial serrations on its bottom face and has a length for establishing turbulence during the last 1/4 of its stroke as the plug is lifted from the valve seat, the flow through said valve seat being modulated by the turbulence.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: November 6, 1990
    Assignee: Honeywell Inc.
    Inventor: Lawrence E. Donahue
  • Digitally controlled current source
    Patent number: 4940930
    Abstract: A current source is controlled by the output signal from a digital to analog converter. The output signal from the digital to analog converter is applied to an amplifier unit. The output of the amplifier unit controls current through a pass transistor element, the pass transistor element current being the current applied to the load impedance. A feedback signal is generated by a differential amplifier in response to the current applied to the load impedance. The output signal from the difference amplifier is applied to an input terminal of the digital to analog converter with a polarity resulting in a change in the output signal of the amplifier unit which compensates for any change in the current through the load impedance. A voltage level changing element is included in the pass transistor control terminal to interrupt the current to the load impedance in the event of a degradation in the power supply.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: July 10, 1990
    Assignee: Honeywell Incorporated
    Inventor: James P. Detweiler
  • Battery monitor
    Patent number: 4929931
    Abstract: There is disclosed a battery monitor for monitoring a plurality of conditions of a battery utilized within a system as the primary or auxiliary power source of the system. The battery monitor includes a voltage measuring means for measuring the voltage of the battery and a processor coupled to the voltage measuring means. The processor utilizes the voltage measurement of the voltage measuring means to determine the presence or the absence of the battery, whether the battery voltage is equal to or greater than a nominal voltage level, and whether the discharge rate of the battery is greater than a selected discharge rate.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: May 29, 1990
    Assignee: Honeywell Inc.
    Inventor: Steven W. McCuen
  • High security communication line monitor
    Patent number: 4926162
    Abstract: A communication line monitor for use in a security or fire detection system of the type including a central alarm station and a communication line. A remote transmitter is coupled to the communication line at the remote end thereof and is assigned one unalterable preassigned address out of 6,561 different addresses. The remote transmitter continuously transmits an eight bit trinary code over the communication line corresponding to its preassigned address. A monitor located at the central alarm station is coupled to the communication line and indicates an alarm condition when the signals received from the remote transmitter fail to correspond to the remote transmitter's preassigned address. The monitor includes a plurality of switches to condition the monitor for identifying the remote transmitter's address. The switches are resettable to any other one of the different addresses.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: May 15, 1990
    Assignee: Honeywell Inc.
    Inventor: John D. Pickell
  • Add/shed load control using anticipatory processes
    Patent number: 4916328
    Abstract: There is disclosed an add/shed system and method for adding and shedding loads to maintain the power consumption of a building below the predetermined level. The system includes a plurality of loads and measures the present total power consumption of the building. Selected ones of the loads are reactively shed in response responsive to the measured total power consumption of the building to maintain the present power consumption of the building below the predetermined level. The anticipated future increase or decrease in power consumption of the building is determined and selected ones of the loads are added or shed in response responsive to the measured total power consumption of the building and the anticipated future increase or decrease in power consumption of the building for continuously maintaining the power consumption of the building below the predetermined level.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: April 10, 1990
    Assignee: Honeywell Inc.
    Inventor: Charles H. Culp, III
  • Automated building control design system
    Patent number: 4885694
    Abstract: Disclosed is a computer system for substantially automating the design of a building control system. The system comprises a processor for processing data stored in a data base, the data being related to a building control system design and comprising both graphic and alpha-numeric information. The processor comprises the ability to call up on a display an initial drawing related to a building control system element. The initial drawing comprises graphic and related alpha-numeric information including an identifier associated with the element and a prompt guiding modification of the initial drawing. The processor also includes the ability to create a modified drawing by incorporating changes into the initial drawing, the modified drawing being related to a building control system design.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: December 5, 1989
    Assignee: Honeywell Inc.
    Inventors: Robert H. Pray, Donald W. Ramler, Curtis B. Juliber
  • Fire alarm system
    Patent number: 4881060
    Abstract: An improved alarm system and method for use in a fire detection system of the type including at least one sensor for sensing the level of a parameter of a fire condition such as heat or smoke density and which transmits electrical signals indicative of the sensed levels over a communication link. The alarm system and method provides for indicating a first alarm condition by receiving electrical signals from the sensor, keeping time from the time that the parameter reaches a first level, and indicating the first alarm condition when the parameter reaches a second level within a first predetermined time period. The second level has a magnitude greater than the first level. The alarm system and method also indicates a first alarm condition corresponding to a third level of the parameter prior to the third parameter level being reached.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: November 14, 1989
    Assignee: Honeywell Inc.
    Inventors: Joseph M. Keen, David S. Schiller
  • Apparatus and method for identification of message initiation in a process control network
    Patent number: 4872186
    Abstract: In order to insure the accuracy of information transmitted over a network, the initiation of the message must be unambiguously identified. In the present invention, the intermessage spacing consists of a series of identical logic signals that exceeds a minimum value distinguishing this interval from a message character. The message character has predefined length, with a start bit position logic signal and a stop bit position logic signal bounding the character that has the same number of predetermined logic signals for every message character. The character has at least one additional non-data bit position that has a first logic signal for the initial character of a message and the complementary logic signal for the remaining characters in the message.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: October 3, 1989
    Assignee: Honeywell Inc.
    Inventors: Paul B. Gerhart, Yasuo Kumeda
  • Apparatus and method for a secure and diagnosable antijabber communication circuit
    Patent number: 4860280
    Abstract: In order to prevent `jabber`, the uncontrolled transmission of messages on a communication channel, an antijabber timing unit is frequently used to determine whether a message on the communication channel exceeds the maximum permitted length of time. The present invention provides testing apparatus to determine when the antijabber timing unit is functioning accurately. In addition, protection is provided so that the testing apparatus does not compromise the function of the antijabber timing unit during subsequent message transmission. The antijabber timing unit is also used as part of the enable function for the transmission of messages over a channel to prevent the failure of a single component from resulting in inadvertent transmission of information.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: August 22, 1989
    Assignee: Honeywell Inc.
    Inventor: Paul B. Gerhart
  • Data transceiving modem
    Patent number: 4856024
    Abstract: A modem for transmitting and receiving digital information includes an oscillator, a switch connected to both the oscillator and to a data input for switchably controlling the oscillator to impress data on a transmission channel, and a receiver also connected to the transmission channel for receiving data thereon to demodulate the data and supply it to a processor.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: August 8, 1989
    Assignee: Honeywell Inc.
    Inventor: George A. Bowman
  • Combination drill and screwdriver
    Patent number: 4852196
    Abstract: A combination drill and screwdriver device for use in forming holes in wallboard material or the like and for driving screws. A Phillips head screwdriver bit is modified for use in forming pilot holes for screw anchors and for a counterbore. A sleeve surrounding the bit provides a drill stop when drilling holes for screw anchors. The sleeve may be pushed through the pilot hole to position a counterbore used for forming larger holes.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: August 1, 1989
    Assignee: Honeywell Inc.
    Inventor: Ronald L. Martin
  • Apparatus and method for detection of an open thermocouple in a process control network
    Patent number: 4841286
    Abstract: In a process control network, apparatus and method for periodic testing of a thermocouple element includes a switching mechanism that inserts a circuit with known parameters in series with the thermocouple. Voltages levels with and without the inserted circuit are compared and used to identify a failed or failing thermocouple.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: June 20, 1989
    Assignee: Honeywell Inc.
    Inventor: Karl T. Kummer
  • Temperature compensation for vav system
    Patent number: 4817864
    Abstract: A temperature compensation control system for stabilizing the temperature within a space as the amount of air being supplied to the space undergoes sudden changes, the space being supplied with supply air through a supply duct, the supply duct having a temperature controller located therein, the space also having a return/exhaust duct associated therewith for removing air from the space, the system including a temperature sensor for sensing the temperature of the space, an air changing sensor for sensing changes in the air supplied to the space, and a controller for controlling the temperature of the space in response to the temperature sensor and for overriding the temperature sensor in response to sudden changes in the air being supplied to the space, the overriding of the temperature sensor decaying in accordance with time.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: April 4, 1989
    Assignee: Honeywell Inc.
    Inventor: Peter P. Payne
  • Vortex valve flow controller in VAV systems
    Patent number: 4817863
    Abstract: In variable air volume systems of buildings, a vortex valve is used for varying the volume of the air moving through the system.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: April 4, 1989
    Assignee: Honeywell Limited-Honeywell Limitee
    Inventors: Gordon M. Bragg, Richard G. Carothers, Kenneth A. MacLeod, Marvin D. Nelson
  • Ultrasonic energy transfer sensing system
    Patent number: 4810100
    Abstract: A system is disclosed for determining the energy transfer across a heat exchanger having an upstream side and a downstream side and mounted within a conduit through which fluid flows, the system including an ultrasonic transmitter for transmitting ultrasonic waves through the conduit on the upstream and downstream sides of the heat exchanger, an ultrasonic receiver for receiving the ultrasonic waves on the upstream and downstream sides of the heat exchanger, the receiver providing signals indicative of the temperature difference between the fluid upstream and downstream of the heat exchanger and the velocity of fluid flow through the conduit and a processor connected to the receiver for determining energy transfer between the heat exchanger and the fluid based upon the signals indicative of the temperature difference and the velocity.
    Type: Grant
    Filed: May 30, 1984
    Date of Patent: March 7, 1989
    Assignee: Honeywell Inc.
    Inventors: Gideon Shavit, Louis S. Smulkstys
  • Apparatus for improving the reliability of an alarm circuit
    Patent number: 4803465
    Abstract: An adapter module for converting a Class B alarm system to Class A operation. The module includes a first pair of terminals connected to corresponding terminals of a Class B control panel, and second and third pairs of terminals to which Class A alarm loops are connected, one terminal of each of the second and third pairs of terminals being directly electrically connected to a separate terminal of the first pair of terminals.
    Type: Grant
    Filed: July 1, 1986
    Date of Patent: February 7, 1989
    Assignee: Honeywell Inc.
    Inventor: Daniel G. Prysby
  • Portable computer maintenance system
    Patent number: D308516
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: June 12, 1990
    Assignee: Honeywell Inc.
    Inventors: Eugene J. Takach, Jr., Charles H. Culp