Patents Represented by Attorney Alfred N. Feldman

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  • Printed wiring board means with isolated voltage source means
    Patent number: 4641043
    Abstract: An ignition control device that utilizes a very sensitive flame rectification signal responsive circuit is disclosed. A printed wiring board arrangement is utilized with a careful arrangement of the conductive areas on the printed wiring board to substantially eliminate leakage paths that can provide a false indication of the presence of flame when none in fact is present.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: February 3, 1987
    Assignee: Honeywell Inc.
    Inventors: John T. Adams, John E. Bohan, Jr.
  • Thermostat with adjustable temperature range setpoint stops
    Patent number: 4639709
    Abstract: A thermostat has a lever that adjusts the set point of the thermostat. The lever is limited in its movement by a pair of stops. The stops are inserted in a geometrically designed slot and can be readily moved for convenient adjustment.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: January 27, 1987
    Assignee: Honeywell Inc.
    Inventor: Howard Koets
  • Clock operated thermostat having automatic changeover and optimum start
    Patent number: 4632177
    Abstract: A clock operated thermostat having both automatic heat-cool changeover and optimum start is disclosed. Programs for the optimum start and automatic changeover are incorporated in a microcomputer based clock thermostat and eliminate any possibility that a homeowner can inadvertently program a sequence that would cause a conflict between the heating and cooling equipment.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: December 30, 1986
    Assignee: Honeywell Inc.
    Inventor: Thomas J. Beckey
  • Exhaust air system for electrostatic air cleaner
    Patent number: 4626262
    Abstract: An electrostatic air cleaner that is supported in the ceiling of a room is modified to vent a portion of the processed air. This venting improves the quality of the air in the occupied space or room. The venting is controlled by a moveable vent closure that has an air diverting portion that can be adjusted along with a sealing portion to regulate the amount of air being diverted from the occupied room.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: December 2, 1986
    Assignee: Honeywell Inc.
    Inventor: John A. Forss
  • Adaptive clock thermostat means for controlling over and undershoot
    Patent number: 4615380
    Abstract: A clock operated thermostat that provides setup temperature from an energy saving temperature is disclosed. The amount of overshoot caused in the space in which the thermostat is installed is measured, and a constant in the operation of the thermostat is corrected. The correction continues to occur each time a setup occurs until the overshoot has been reduced to an acceptable level.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: October 7, 1986
    Assignee: Honeywell Inc.
    Inventor: Thomas J. Beckey
  • Printed wiring board means with integral dew sensor
    Patent number: 4598333
    Abstract: An electronic control device utilizes a plurality of conductive areas on an associated printed wiring board to create integral dew sensors. The dew sensors are created by providing parallel conductive surfaces that are connected in turn by a resistor to a high impedance switch in the form of the gate of a field effect transistor. In the event that moisture vapor or dew is present in the control device, a conductive path is created that causes the control device to shut down in a safe or alternate mode from the normal mode of operation.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: July 1, 1986
    Assignee: Honeywell Inc.
    Inventors: John T. Adams, John E. Bohan, Jr.
  • Optical monitor for direct thickness control of transparent films
    Patent number: 4582431
    Abstract: Precise thickness control for high performance optical coatings is provided in an optical coating system utilizing an optical monitor. The optical monitor utilizes a light source and detecting arrangement that measures a sample optical element through the expedient of a light path altering structure that is not coincident with the axis of rotation of a deposition carrousel structure that supports optical elements being coated. The light source and detector arrangements can be mounted conveniently outside of the vacuum chamber of the optical coating system.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: April 15, 1986
    Assignee: Honeywell Inc.
    Inventor: Barrett E. Cole
  • Zone control system for energy conservation
    Patent number: 4582249
    Abstract: A multizone control system utilizes a series of timers to ensure that all of the heat supplied to the system is utilized. Timers are used to control transfer of heat from the temperature modifying plant to the zones. The timers are further arranged to bring "on" additional heat to the heat anticipator of the zone of lower demand thereby tending to synchronize the operation of zones and allow for more efficient supply of the heat exchange medium throughout the areas being controlled.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: April 15, 1986
    Assignee: Honeywell Inc.
    Inventor: Lorne W. Nelson
  • Fluid flow sensing means with ambient temperature compensation
    Patent number: 4566320
    Abstract: A flow sensing or differential pressure sensing device utilizing a pair of bridges is disclosed. A first bridge operates a heating element and a temperature dependent resistor to in turn control an error integrator. The error feedback provides the voltage for both of the bridges thereby keeping the operation of the bridges compensated for ambient temperature variations.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: January 28, 1986
    Assignee: Honeywell, Inc.
    Inventor: Philip J. Bohrer
  • Boiler low water sensing system utilizing energy transfer network means for delay
    Patent number: 4565930
    Abstract: An energy transfer network is used to ensure reliable operation of a low water sensing system for a boiler. The energy transfer network provides a sufficient time interval to make sure that wave action and boiling within the boiler do not simulate the loss of water. The energy transfer network is structured to be discharged in the event water actually drops below an appropriate level. The energy transfer network provides for the continuous presence of water so that boiling action does not simulate an artificially high (presence of) water level.
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: January 21, 1986
    Assignee: Honeywell, Inc.
    Inventor: James I. Bartels
  • Accurate dead band control circuit
    Patent number: 4563597
    Abstract: Two pairs of solid state current path means, disclosed as transistors, are interconnected to provide an accurate dead band control circuit means. The transistors have emitters that are intentionally mismatched in size thereby creating dissimilar current conducting characteristics for each pair of transistors. The switching characteristics of each pair of transistors can be controlled by the areas of the emitters and thereby a dead band can be created between the two pairs of transistors which can be used as an accurate dead band control.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: January 7, 1986
    Assignee: Honeywell Inc.
    Inventor: Robert A. Betzold
  • Flue gas analyzer with carbon monoxide detector
    Patent number: 4561288
    Abstract: A flue gas analyzer connects a carbon monoxide gas analyzer cell into a flue gas system to analyze accurately the carbon monoxide content of a flue gas sample. A predetermined flow of flue gas through the analyzer cell at a constant rate is provided by a pump and orifice configuration to accurately determine the carbon monoxide content of the flue gas.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: December 31, 1985
    Assignee: Honeywell Inc.
    Inventor: Patrick R. Moenkhaus
  • Functional check for a hot surface ignitor element
    Patent number: 4560343
    Abstract: A hot surface ignitor element is functionally checked for continuity and operating temperature. This check is accomplished by initially energizing the hot surface ignitor element and then switching it as a single ended element into a series circuit with a source of potential. The potential is applied between the hot surface ignitor and an electrode which is connected back to the source of potential. If the hot surface ignitor has come up to ignition temperature a flame rectification signal is simulated.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: December 24, 1985
    Assignee: Honeywell Inc.
    Inventor: John E. Bohan, Jr.
  • Control logic safety monitoring circuit means
    Patent number: 4558389
    Abstract: A microcomputer utilizing a crystal controlled clock and a power line responsive clock operates both the control system and into a safety timing means. The safety timing means can take the form of a pair of retriggerable monostable multivibrators that are operated to monitor the microcomputer along with a feedback circuit from a load control means. The feedback from the load control means senses the status of a safety switch means and provides the microcomputer with the ability to monitor and be monitored for safe operation.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: December 10, 1985
    Assignee: Honeywell Inc.
    Inventors: Robert A. Black, Jr., Rodney L. Clark, Kenneth B. Kidder, Paul B. Patton
  • Condition responsive sensor for fluid flow measurement
    Patent number: 4555939
    Abstract: A condition responsive sensor is provided with a flow sensor channel means that is interconnected to a capillary tube restriction. The capillary tube restriction can be readily interchanged on the device to change the response of the condition responsive sensor. A very small flow sensor is placed in the flow sensor channel. The flow sensor channel and the capillary tube restriction can be placed generally parallel to one another to reduce the overall length of the device.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: December 3, 1985
    Assignee: Honeywell Inc.
    Inventors: Philip J. Bohrer, Robert E. Higashi, Timothy L. Johnson, Ernest A. Satren
  • Voltage transient protection circuit for MOSFET power transistors
    Patent number: 4550359
    Abstract: A pair of MOSFET power transistors are connected in a push-pull configuration to drive a tapped transformer and a load. A pair of diodes and an energy coupling circuit containing a capacitor and resistor in parallel bias the transformer primary in such a manner as to limit transients in a nonconducting MOSFET when the other MOSFET is conducting, aided by a drop in voltage at an inductor (ferrite bead) network which develops at the moment of MOSFET transistor conduction. This is due to a momentary change in the impedance ratio.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: October 29, 1985
    Assignee: Honeywell Inc.
    Inventor: Gerald W. West
  • Robotics manipulator with gripping force control means
    Patent number: 4533167
    Abstract: A robotics manipulator utilizes a fluid pressure control system to provide a response to the gripping force of the robotics manipulator on an object. The force is converted to a change in fluid pressure that is sensed in a fluid flow channel. This change in pressure or flow is in turn used to provide the control system for the robotics manipulator with information on how hard an object is being gripped.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: August 6, 1985
    Assignee: Honeywell Inc.
    Inventor: Robert G. Johnson
  • High voltage spark electrode structure
    Patent number: 4527085
    Abstract: With the addition of a conductive means in the form of a grounded ring or member placed at the insulator means of a high voltage spark electrode structure, the required break down voltage of the spark gap can be reduced. The conductive means typically would be a ring encircling the insulator means of the electrode structure and would provide a ground as well as a mechanical support near the end of the insulator means of the electrode structure.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: July 2, 1985
    Assignee: Honeywell Inc.
    Inventors: John E. Bohan, Jr., Ulrich Bonne, Dane M. Weber
  • Sleeve valve actuator means
    Patent number: 4523737
    Abstract: An actuator means is provided for a sleeve type of valve wherein a cable or flat band is caused to rotate one end of a sleeve valve with respect to a fixed second end. The relative rotation can be accomplished to operate the valve and can be provided by a simple linear operating type of pneumatic operator. One version of the disclosure provides an actuator that requires no return spring other than that which would normally be present in the pneumatic actuator itself.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: June 18, 1985
    Assignee: Honeywell Inc.
    Inventor: Milo R. Wentworth
  • Reliable field-effect transistor timer circuit
    Patent number: 4521705
    Abstract: A positive voltage supply is connected to a circuit having a single capacitor and depletion-type field-effect transistor to create a reliable timer. The capacitor is initially charged upon the opening of a control switch without creating a timed output across the drain-source terminals of the field-effect transistor. The closing of the switch reverses the bias of the single capacitor to the gate-source connections of the field-effect transistor to thereby create a fixed and reliable timed interval.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: June 4, 1985
    Assignee: Honeywell Inc.
    Inventor: James I. Bartels