Patents by Inventor David T Monk

David T Monk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10487480
    Abstract: A water leak detection and prevention device comprised of a leak detection apparatus positioned near a water-dependent appliance to monitor for moisture due to a leak, and a leak prevention system connected to the leak detection apparatus in fluid communication with a water pipe attached to the water-dependent appliance and positioned in-line with the water pipe is disclosed.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: November 26, 2019
    Assignee: Monk Intellectual Properties, LLC
    Inventor: David T. Monk
  • Publication number: 20170121950
    Abstract: A water leak detection and prevention device comprised of a leak detection apparatus positioned near a water-dependent appliance to monitor for moisture due to a leak, and a leak prevention system connected to the leak detection apparatus in fluid communication with a water pipe attached to the water-dependent appliance and positioned in-line with the water pipe is disclosed.
    Type: Application
    Filed: November 1, 2016
    Publication date: May 4, 2017
    Inventor: David T. Monk
  • Patent number: 7992399
    Abstract: A system to equalize pressure connected to a compressor for use in HVAC&R system is provided. The system includes a component in fluid communication between a high pressure side and an intermediate pressure side of the compressor. The component is configured to permit flow of refrigerant between the high pressure side and the intermediate pressure side at least when the compressor is not in operation.
    Type: Grant
    Filed: March 8, 2008
    Date of Patent: August 9, 2011
    Assignee: Bristol Compressors International, Inc.
    Inventors: David T. Monk, Richard C. Denzau, John Robert Williams, Scott G. Hix, Timothy Michael Wampler, Bruce Moody
  • Patent number: 7946123
    Abstract: A system is provided to control and operate a compressor to have two or more discrete output capacities in response to an outdoor temperature measurement. During operation of the compressor in an air conditioning or cooling mode, the compressor has a first output capacity in response to the outdoor temperature being greater than a first temperature setpoint and the compressor has a second output capacity in response to the outdoor temperature being less than a second temperature setpoint.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: May 24, 2011
    Assignee: Bristol Compressors International, Inc.
    Inventors: John W. Tolbert, Jr., Scott G. Hix, David T. Monk, Jerry D. Edwards
  • Publication number: 20100083680
    Abstract: A system is provided to control and operate a compressor to have two or more discrete output capacities in response to an outdoor temperature measurement. During operation of the compressor in an air conditioning or cooling mode, the compressor has a first output capacity in response to the outdoor temperature being greater than a first temperature setpoint and the compressor has a second output capacity in response to the outdoor temperature being less than a second temperature setpoint.
    Type: Application
    Filed: December 7, 2009
    Publication date: April 8, 2010
    Inventors: John W. TOLBERT, JR., Scott G. HIX, David T. MONK, Jerry D. EDWARDS
  • Publication number: 20080216499
    Abstract: A system to equalize pressure connected to a compressor for use in HVAC&R system is provided. The system includes a component in fluid communication between a high pressure side and an intermediate pressure side of the compressor. The component is configured to permit flow of refrigerant between the high pressure side and the intermediate pressure side at least when the compressor is not in operation.
    Type: Application
    Filed: March 8, 2008
    Publication date: September 11, 2008
    Applicant: BRISTOL COMPRESSORS INTERNATIONAL, INC.
    Inventors: David T. Monk, Richard C. Denzau, John Robert Williams, Scott G. Hix, Timothy Michael Wampler, Bruce Moody
  • Publication number: 20080034772
    Abstract: An automatic self-modulation capacity compressor for an HVAC&R system is disclosed. The system includes a housing, a compressor, a motor, and a pressure sensitive control valve. The HVAC&R system further comprises an expander and a condenser. In the open position, the control valve permits a portion of the pressurized gasses from the compressor to escape, creating a partial capacity compressor within the system. Once a predetermined set point pressure differential is met, the control valve moves to the closed position, where all of the pressurized gasses within the compressor are provided to the system, thereby creating a full capacity compressor. Once the compressor is operating in full capacity, the compressor remains in full capacity mode until the demands of the system are met and the compressor shuts down. Upon restart, the compressor operates in partial capacity until the predetermined set point pressure is met once again and the compressor begins operating in full capacity.
    Type: Application
    Filed: July 27, 2006
    Publication date: February 14, 2008
    Applicant: BRISTOL COMPRESSORS, INC.
    Inventors: Eugene K. Chumley, Joseph F. Loprete, David T. Monk, Scott G. Hix
  • Patent number: 7260951
    Abstract: A pressure equalization system staffs a compressor while maintaining the condenser at a high pressure, including a valve and a bleed port. The compressor inlet receives a fluid at a first pressure. The compressor outlet discharges the fluid at a second pressure, and is operable to compress the fluid from the first pressure to the second pressure. The valve, proximate to and in fluid communication with the compressor outlet, is movable to an open position during compressor operation to permit the fluid at the second pressure to flow through the valve and is movable to a closed position when the compressor stops operating to prevent backflow of the fluid at the second pressure through the valve toward the compressor inlet. The bleed port, upstream of the valve and in fluid communication with the compressor inlet, equalizes the pressure of the fluid contained in the compressor when compressor operation stops.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: August 28, 2007
    Assignee: Bristol Compressors International, Inc.
    Inventors: David T. Monk, John W. Tolbert, Jr., John Kenneth Narney, II, Charles E. Zimmerman, Timothy M. Wampler, Richard L. Smith
  • Patent number: 6953324
    Abstract: A stabilizing structure for a throw adjusting eccentric cam in a two-stage reciprocating compressor is provided. The compressor includes a block that has at least one cylinder with an associated compression chamber and piston, a crankshaft that includes an eccentric crankpin, and a reversible motor for rotating the crankshaft in a forward and a reverse direction. An eccentric, two position cam is rotatably mounted over the crankpin. The cam rotates to and operates at a first position relative to said crankpin when the motor is running in the forward direction and rotates to and operates at a second position relative to said crankpin when the motor is running in the reverse direction. The combined eccentricities of the crankpin and the cam cause the piston to have a first stroke when the motor operates in the forward direction and a second stroke when the motor operates in the reverse direction.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: October 11, 2005
    Assignee: Bristol Compressors, Inc.
    Inventors: Michael R. Young, Joseph F. Loprete, David T. Monk, Philip C. Wagner, Joe T. Hill, Robert B. Peters
  • Patent number: 6901675
    Abstract: A system and method of sizing an inner diameter of the center bore of a laminated rotor is provided. The inner diameter of the center bore is determined by taking a series of measurements in the center bore with an electronic gauge and then analyzing the measurements to determine the acceptability of the rotor. The electronic gauge is inserted into the center bore of the rotor and measurements of the inner diameter of the center bore are taken at a variety of different depths and positions using the electronic gauge. The measurements are then analyzed to determine if the rotor is acceptable for use by evaluating the measurements with respect to a reference diameter and a depth in the center bore.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: June 7, 2005
    Assignee: Bristol Compressors, Inc.
    Inventors: Jerry D. Edwards, David T. Monk, John W. Tolbert
  • Patent number: 6900573
    Abstract: A method of assembling and manufacturing a laminated rotor is provided which uses laminations having a thin bridge thickness. Different techniques are provided for preventing the molten material used in the casting or injection molding operation from leaking or seeping between the laminations during casting. In one technique, the laminations are stacked and oriented in the conventional way, and then both axial and radial pressures are applied to the stacked laminations to hold the laminations in position for the casting process. In another technique, the laminations are formed or extruded with a lip or collar portion that fit in a countersunk portion of an adjacent lamination and forms a wall or barrier between the laminations to prevent the leakage of the molten material during the casting or injection molding operation.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: May 31, 2005
    Assignee: Bristol Compressors, Inc.
    Inventors: Jerry D. Edwards, David T. Monk, John W. Tolbert
  • Patent number: 6848495
    Abstract: A method of assembling and manufacturing a laminated rotor is provided which uses laminations having a thin bridge thickness. Different techniques are provided for preventing the molten material used in the casting or injection molding operation from leaking or seeping between the laminations during casting. In one technique, the laminations are stacked and oriented in the conventional way, and then both axial and radial pressures are applied to the stacked laminations to hold the laminations in position for the casting process. In another technique, the laminations are formed or extruded with a lip or collar portion that fit in a countersunk portion of an adjacent lamination and forms a wall or barrier between the laminations to prevent the leakage of the molten material during the casting or injection molding operation.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: February 1, 2005
    Assignee: Bristol Compressors, Inc.
    Inventors: Jerry D. Edwards, David T. Monk, John W. Tolbert
  • Publication number: 20040237322
    Abstract: A system and method of sizing an inner diameter of the center bore of a laminated rotor is provided. The inner diameter of the center bore is determined by taking a series of measurements in the center bore with an electronic gauge and then analyzing the measurements to determine the acceptability of the rotor. The electronic gauge is inserted into the center bore of the rotor and measurements of the inner diameter of the center bore are taken at a variety of different depths and positions using the electronic gauge. The measurements are then analyzed to determine if the rotor is acceptable for use by evaluating the measurements with respect to a reference diameter and a depth in the center bore.
    Type: Application
    Filed: May 27, 2003
    Publication date: December 2, 2004
    Applicant: Bristol Compressors
    Inventors: Jerry D. Edwards, David T. Monk, John W. Tolbert
  • Patent number: 6823686
    Abstract: A pressure equalization method and system is provided for starting a compressor while maintaining the condenser at a high pressure and includes a valve and a bleed port. The compressor has a compressor inlet for receiving a fluid at a first pressure and a compressor outlet for discharging the fluid at a second pressure, and is operable to compress the fluid from the first pressure to the second pressure. The valve is proximate to and in fluid communication with the compressor outlet and is movable to an open position when the compressor is operating to permit the fluid at the second pressure to flow through the valve and is movable to a closed position when the compressor stops operating to prevent backflow of the fluid at the second pressure through the valve toward the compressor inlet. The bleed port is upstream of the valve and in fluid communication with the compressor inlet to equalize the pressure of the fluid contained in the compressor when the compressor stops operating.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: November 30, 2004
    Assignee: Bristol Compressors, Inc.
    Inventors: Eugene Chumley, Larry G. Pippin, Pantelis V. Hatzikazakis, William Z. Sun, Timothy M. Wampler, Charles E. Zimmerman, Rongchang Xin, David T. Monk
  • Publication number: 20040231818
    Abstract: A method of assembling and manufacturing a laminated rotor is provided which uses laminations having a thin bridge thickness. Different techniques are provided for preventing the molten material used in the casting or injection molding operation from leaking or seeping between the laminations during casting. In one technique, the laminations are stacked and oriented in the conventional way, and then both axial and radial pressures are applied to the stacked laminations to hold the laminations in position for the casting process. In another technique, the laminations are formed or extruded with a lip or collar portion that fit in a countersunk portion of an adjacent lamination and forms a wall or barrier between the laminations to prevent the leakage of the molten material during the casting or injection molding operation.
    Type: Application
    Filed: May 19, 2003
    Publication date: November 25, 2004
    Applicant: Bristol Compressors
    Inventors: Jerry D. Edwards, David T. Monk, John W. Tolbert
  • Patent number: 6708519
    Abstract: A compression device for use in a HVAC&R system that includes a compressor for compressing vaporized refrigerant having a compressor inlet and compressor outlet for directing compressed refrigerant downstream along a first conduit to a condenser. An accumulator is provided for preventing liquid refrigerant from reaching the compressor. The accumulator has an accumulator inlet for receiving refrigerant along a second conduit from an upstream evaporator and an accumulator outlet in fluid communication with the compressor inlet for receiving vaporized refrigerant therein. The accumulator and compressor are integrally connected thereto so that the accumulator and compressor may be installed into a refrigerant recycling system by connecting the compressor outlet with the first conduit and connecting the accumulator inlet with the second conduit. A desiccant is disposed inside the accumulator between the accumulator inlet and outlet for removing moisture from the refrigerant.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: March 23, 2004
    Assignee: Bristol Compressors, Inc.
    Inventors: David T. Monk, John K. Narney, II
  • Patent number: 6609896
    Abstract: The reliability of a compressor may be improved by affixing an inertia-increasing member to the drive shaft of the compressor in order to reduce the forces imposed on a mechanical coupling between the drive shaft and a compression member when the rotation of the drive shaft is initiated. A method of selecting the size and configuration of the inertia-increasing member is also provided.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: August 26, 2003
    Assignee: Bristol Compressors, Inc.
    Inventors: Scott G. Hix, John R. Walters, Jr., David T. Monk, Tyrone S. Simerly
  • Publication number: 20030143083
    Abstract: The reliability of a compressor may be improved by affixing an inertia-increasing member to the drive shaft of the compressor in order to reduce the forces imposed on a mechanical coupling between the drive shaft and a compression member when the rotation of the drive shaft is initiated. A method of selecting the size and configuration of the inertia-increasing member is also provided.
    Type: Application
    Filed: January 28, 2002
    Publication date: July 31, 2003
    Applicant: BRISTOL COMPRESSORS, INC.
    Inventors: Scott G. Hix, John R. Walters, David T. Monk, Tyrone S. Simerly
  • Patent number: 6591621
    Abstract: A two stage reciprocating compressor and associated HVAC systems and methods are disclosed. The reciprocating compressor includes a crankshaft having an eccentric crankpin, a reversible motor for rotating the crankshaft in a forward and a reverse direction, and an eccentric, two position cam rotatably mounted over the crankpin. The crankshaft and cam combine to cause the piston to have a first stroke when the motor operates in the forward direction and a second stroke when the motor operates in the reverse direction. The cam and crankpin also include stabilization means to restrict the relative rotation of the cam about the crankpin. A lubrication system is provided to lubricate the engaging surfaces of the crankshaft and cam and between the cam and the bearing surface of the connecting rod. There is also provided a control for selectively operating the motor either in the forward direction at a first power load or in the reverse direction at a reduced second power load.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: July 15, 2003
    Assignee: Bristol Compressors, Inc.
    Inventors: Joseph F. Loprete, Michael R Young, John W Tolbert, Jr., David T Monk, Philip C Wagner, Joe T Hill, Larry Pippin, Robert B. Peters
  • Patent number: D598970
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: August 25, 2009
    Inventor: David T. Monk