Patents Examined by Susanne C. Tinker
  • Patent number: 5906055
    Abstract: Specifically configured dual rotor, multi-lobed, rotary gas compressors in a piping system will provide clean gas heating and re-circulation that will quickly and efficiently heat a connected process chamber or process piping section. Substantial heat is quickly generated through mechanical agitation of the gas molecules that pass through the inlet and outlet of a dual rotor, multi-lobed, rotary gas compressor. The invention application of a dual rotor, multi-lobed, rotary gas compressor as a means of imparting heat to a gas stream provides an economical source of convective heat for closed and open loop piping applications.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: May 25, 1999
    Inventors: Charles Grenci, R. Dallas Clayton
  • Patent number: 5904047
    Abstract: This invention provides an air conditioner for simultaneously cooling or heating a plurality of rooms by using a single outdoor unit and at least two and more indoor units connected to the outdoor unit, the air conditioner including indoor heat exchangers installed in each room, for heat-exchanging a room air, a unit for detecting varying temperatures of conduit during the air conditioning, a control unit for controlling low temperature, high temperature, and defrosting operations for respective indoor units on the basis of the detected conduit temperature, and for coding operation states of respective indoors to input/output the coded communication signals, a communicating unit for transmitting and receiving the coded communication signals through input/output ports provided with the control unit for communicating between any indoor units.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: May 18, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-Man An
  • Patent number: 5904105
    Abstract: A device for combustion of moist fuel includes a combustion chamber with a moving fire grate disposed at a bottom portion thereof and a drum dryer located within the combustion chamber above the fire grate. The dryer drum rotates and includes therein an involuted drum in communication with a feeding apparatus external to the combustion chamber. The feeding apparatus transports fuel from a bin to the involuted drum. As the drum dryer rotates the fuel therein moves toward an end thereof and is dried by the heat of the combustion chamber. From an end of the drum dryer, the dried fuel falls onto the fire grate and is burned.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: May 18, 1999
    Inventor: Matti Pappinen
  • Patent number: 5902183
    Abstract: A method and apparatus for conserving energy in buildings consisting of an indoor temperature sensor, an outdoor temperature sensor, a programmable electronic thermostat, and a bi-directional power ventilator. The programmable electronic thermostat contains software instructions to switch on or switch off the power ventilator during pre-determined time schedules in response to changes in the indoor and the outdoor temperatures. During a summer day-time schedule, the thermostat switches on the power ventilator in the normal flow mode to exhaust the building of hot accumulated indoor air if the indoor temperature is greater than a selected set-point temperature and if the indoor temperature is also greater than the outdoor temperature by a predetermined ratio.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: May 11, 1999
    Inventor: Melanius D'Souza
  • Patent number: 5901568
    Abstract: A heat pump with a closed cooling medium circuit for transport of heat from one air flow to another, comprises an evaporator (27) provided in one air flow for evaporation of a cooling medium, a compressor for compression of the vaporiform cooling medium, a condenser (28) provided in the other air flow for condensation of the cooling medium, and a return system for condensed cooling medium from the condenser (28) to the evaporator (27). The evaporator (27), the compressor and the condenser (28) are located in a fan casing (32) and arranged to rotate about a common shaft (1), with the compressor in the middle. The compressor works according to the liquid ring principle and comprises a rotating compressor housing (17), an intermediate shaft (2) mounted eccentrically on the outside of the shaft and one or more free-running impellers (3A, 3B), thus causing the compressor housing (17) to transfer rotary energy to the impellers via the liquid ring during operation.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: May 11, 1999
    Assignee: Haga Engineering AS
    Inventor: Johan Haga
  • Patent number: 5901559
    Abstract: An oil level regulator is disclosed for use in a refrigeration system which has an oil reservoir and at least one compressor with a crankcase for containing oil. The regulator has a body with an interior fluid chamber for receiving oil. An inlet communicates with the fluid chamber of the body and is connected by a conduit to the oil reservoir of the system. An outlet communicates from the fluid chamber through a conduit through to the crankcase of the compressor. A level detecting mechanism is disposed within the fluid chamber for detecting an oil level therein. The level detector mechanism includes a solenoid assembly which is actuated by the detector mechanism when the oil level within the chamber is determined to be at or below a predetermined level. A microprocessor is provided on the regulator which communicates with the detector mechanism and the solenoid assembly.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: May 11, 1999
    Assignee: AC&R Components, Inc.
    Inventors: Gary Westermeyer, Paul Isaacs
  • Patent number: 5899080
    Abstract: An air conditioning installation designed with regard to achieving a comfort temperature as well as meeting heat load requirements for a conditional space. The comfort temperature being dependent upon the velocity of the air flow in the space and the design being established by an iterative process until the comfort temperature differs from the exit temperature of the space within predetermined limits.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: May 4, 1999
    Assignee: F.F. Seeley Nominees Pty Ltd
    Inventor: Robert Wilton James
  • Patent number: 5896749
    Abstract: A refrigeration and active damper control circuit uses a single-pole thermostatic switch to control the damper motor for the fresh food compartment of a refrigeration unit. When the thermostatic switch is closed, the control circuit connects current from the electrical power source directly to the damper motor through the thermostatic switch; when the thermostatic switch is open, the control circuit connects current from the electrical power source through the evaporator fan motor and then through the damper motor. The damper motor has an electrical resistance substantially larger than that of the evaporator fan motor, so that during the latter series connection of the evaporator fan motor and damper motor, a sufficient voltage drop develops across the damper motor so that the damper will be closed by the damper motor.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: April 27, 1999
    Assignee: France/Scott Fetzer Company
    Inventor: James D. Livers, Jr.
  • Patent number: 5894806
    Abstract: Reduction of slagging is improved by targeting slag-reducing chemicals in a furnace with the aid of computational fluid dynamic modeling. Chemical utilization and boiler maintenance are improved.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: April 20, 1999
    Assignee: Fuel Tech, Inc.
    Inventors: Christopher R. Smyrniotis, William F. Michels, M. Damian Marshall, William H. Sun, Daniel V. Diep, Cari M. Chenanda
  • Patent number: 5893271
    Abstract: A cooling system with super heating control for a vapor degreasing apparatus is provided. The cooling system consists of a single condenser receiving a substantially gaseous refrigerant and producing a substantially liquid refrigerant. A first chilling coil evaporates at least a portion of the substantially liquid refrigerant which results in heat absorption by the first chilling coil at a first absorption rate. A second chilling coil evaporates at least a portion of the substantially liquid refrigerant resulting in heat absorption by the second chilling coil at a second absorption rate, and a desuperheating system, connected to the first and second chilling coils and the condenser, controlling the temperature of the substantially gaseous refrigerant generated by the first and second chilling coils and received by the condenser.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: April 13, 1999
    Assignee: Detrex Corporation
    Inventor: Christopher J. Brink
  • Patent number: 5890444
    Abstract: For determining the average radiation of a surface region of a burning bed, an infrared camera is used in a firing installation, which camera is aligned with this region and is equipped by means of appropriate flame filters in such a way that it operates at the minimum of the interfering radiation emanating from the flame, whereby this interfering radiation is already largely eliminated. In order then also to eliminate the solids radiation from moving particles and thus to obtain a temperature measurement of the burning bed, recordings are made successively at short intervals of time by means of the infrared camera and these are evaluated in the evaluation and control device.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: April 6, 1999
    Assignee: Martin GmbH fuer Unwelt- und Energietechnik
    Inventors: Johannes Martin, Walter Martin
  • Patent number: 5890443
    Abstract: A low-cost volume-reducing treatment method for waste which thermally decomposes or burns chlorine-containing waste while the generation of hydrogen chloride and dioxin is completely or considerably suppressed. According to the method, volume of the waste can be greatly reduced. Shredder dust and other waste which contains chlorine derived from, for example, chlorine-containing polymers is thermally decomposed or burned at a temperature of to C. in a reducing atmosphere where unburned carbon remains. Preferably, a basic material like red mud which contains alkali metal oxides or alkaline earth metal oxides is added before treatment.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: April 6, 1999
    Assignees: Kabushiki Kaisha Shinsei, Masafumi Maeda
    Inventors: Sadao Taya, Masafumi Maeda
  • Patent number: 5890369
    Abstract: Method and apparatus for controlling an evaporative gas conditioning system utilizes a controller for controlling the rate at which liquid is introduced into a conditioning chamber, thereby closely controlling the rate at which temperature within the conditioning chamber is adjusted to a desired temperature. Nozzle characteristics of a plurality of different nozzle types are stored in a memory associated with the controller, so that when existing nozzles are replaced with a different nozzle type, an operator can select the new nozzle type, and data stored in memory will be retrieved to permit efficient control of the system without the necessity for manual reconfiguration. Additionally, spray nozzles for spraying water into the conditioning chamber of the system are organized into banks of nozzles, and the banks of nozzles are controlled to maintain optimum water flow through each nozzle, and to evenly distribute the water into the conditioning chamber.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: April 6, 1999
    Assignee: BHA Group Holdings, Inc.
    Inventors: Anand Mahableshwarkar, Michael M. Mahler, David F. Johnston, Robert Hummell
  • Patent number: 5890374
    Abstract: An oil separator for an evaporator in a cooling system is installed between a capillary tube and the evaporator for separating oil from the refrigerant flowing into the evaporator. The oil separator comprises an inflow member connected to the capillary tube, for receiving the oil-containing refrigerant therefrom. A refrigerant outflow member is connected between the inflow member and an inlet of the evaporator, for conducting the refrigerant upward to the inlet of the evaporator. An oil outflow member is disposed between the inflow member and an outlet of the evaporator, for conducting the oil downward to an outlet of the evaporator. The oil separator prevents oil from flowing into the evaporator, thereby preventing accumulation of the oil inside the evaporator which could reduce the amount of oil disposed inside a compressor of the cooling system.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: April 6, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sung Tae Lee
  • Patent number: 5884569
    Abstract: A method and apparatus for enclosing, controlling and suppressing the explosive destruction of munitions, including cluster-bomb munitions by detonation in an explosion chamber. The apparatus comprises a double-walled steel explosion chamber in which the of the chamber walls and access doors are filled with granular shock damping silica sand. The floor of the chamber is covered with granular shock-damping pea gravel. An array of vent pipes vents the chamber into manifolds leading to a scrubber for further cooling and environmental treatment of the gaseous combustion products. Within the chamber, plastic bags of water are suspended over the detonation. A munition to be destroyed is placed within an open-topped manganese steel fragmentation containment unit, which is then placed within the chamber under a woven steel blast mat secured to the chamber roof.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: March 23, 1999
    Inventor: John L. Donovan
  • Patent number: 5884492
    Abstract: An air conditioning system and method whereby water sprays are arranged and modulated in air washers from recirculated water and a cooled or non-cooled central water source to provide precise psychometric (dry bulb temperature, relative humidity, dew point temperature and specific humidity) conditions in the space being conditioned while conserving energy by reducing the cooling load, reducing the pumping horsepower load, and eliminating reheat under all weather conditions. This system also reduces maintenance and operating costs by allowing chemical treatment, makeup water, water overflow, and water filtration to be provided in a central location even with multiple air washers and water chillers.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: March 23, 1999
    Assignee: AC Corporation
    Inventors: Henry Arnold Zwicky, Roger Harold Lamar, Allen James Bradley, Tony Gray Peele
  • Patent number: 5884496
    Abstract: A cool air feeding system that senses a temperature of each part of a refrigerator compartment, compares the sensed temperature with a reference temperature, determines which part is to be cooled, and redistributes cool air to better cool a part of the refrigeration having a greater need to be cooled. Cool air redistribution is achieved using a single value having multiple openings. Such a valve can take the form of cylindrical manifold and a corresponding cylindrical, unitary-body flow distributor, for example.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: March 23, 1999
    Assignee: LG Electronics, Inc.
    Inventors: Hyun Jong Kim, Jae Jin Kim, Young Chul Son
  • Patent number: 5878677
    Abstract: To cool and clean flue gases from a furnace of a waste incineration plant, the flue gases are fed to a fluidized-bed reactor (6) as fluidizing gases in a first stage (1), into which solid sorbents are simultaneously introduced to remove gaseous pollutants. Solids discharged from the fluidized-bed reactor (6), together with the unused sorbents, are preferably recirculated via a fluid-bed cooler (15). Whereas in the first stage (1), at temperatures above C., optimum conditions, in particular for removing SO.sub.2, are created, the flue gases are further cooled and treated in a second stage (2a, 2b, 2c). In a second circulating fluidized bed, at temperatures below C., excellent conditions are created for HCl removal. In addition to the optimum gas cleaning, efficient cooling is also achieved, corrosion problems on heat-transfer surfaces also being solved.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: March 9, 1999
    Assignee: Von Roll Umelttechnik AG
    Inventors: Patrick Muller, Hans Ruegg
  • Patent number: 5875722
    Abstract: A system and method for purification of combustion gases cools the combustion gases to an optimal oxidation temperature, oxidizes the combustion gases, injects water or uses natural moisture content to form acid aerosols, neutralizes the acid aerosols with an alkaline solution, and then filters the acid aerosol, alkaline solution and water from the combustion gases. The purified gas stream is then exhausted from the system. Oxidation can be provided in stages to obtain optimal oxidation of different combustion gas components with different optimal oxidation temperature ranges. When used in a thermal power plant, the cooling of exhaust gases can be accomplished by regenerative preheating of combustion air, boiler feedwater or combustion fuel, and the clean exhaust gas can be cooled below the conventional exhaust stack temperature range, thus enhancing power plant efficiency.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: March 2, 1999
    Assignee: Dasibi, Inc.
    Inventors: Albert E. Gosselin, Jr., Edward R. Bate, Jr., Dale F. Johnson
  • Patent number: 5875562
    Abstract: Described is a quiet hand-held hair dryer with configuration and component combinations for making the hair dryer exceptionally quiet and efficient. The hair dryer includes a housing having a lower handle portion and an upper body portion separated by an air-directing wall. A large impeller moves air downward from a large top air inlet and passes it outward through a side air outlet in a hair drying stream. An electric motor is mounted in the handle housing adjacent its bottom and is connected in driving relation with the impeller by a long vertical shaft. The motor is mounted in a rubber casing permitting cooling air flow and minimizing vibration to the housing; and the upper end of the shaft is stabilized by a bearing mounted in a rubber housing for the same purpose. The configuration of the described hair dryer permits high air flow with relatively low motor speeds.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: March 2, 1999
    Inventor: Shaun P. Fogarty