Electric Patents (Class 236/3)
  • Publication number: 20150096734
    Abstract: A temperature control device has a housing, a configuration unit, a microcontroller unit (MCU) and a temperature-sensing unit. After the configuration unit is used to configure a requested temperature and a temperature tolerance, the MCU adds a temperature outside the housing sensed an external temperature-sensing element of the temperature-sensing unit to the temperature tolerance, then determines if the sum is higher or lower than the requested temperature, starts a cooling unit or a heating unit to operate until a temperature inside the housing sensed by an internal temperature-sensing element of the temperature-sensing unit, thereby achieving an thermostatic effect.
    Type: Application
    Filed: September 15, 2014
    Publication date: April 9, 2015
    Inventor: MING-CHIEN CHANG
  • Patent number: 9002525
    Abstract: Apparatus, systems, methods, and computer program products are disclosed for providing software updates to client devices. A client device (such as a thermostat) executes software to perform one or more functionalities of the device. Upon receiving an indicating that a software update is available, the device waits to download the software update until pre-download conditions are satisfied. Once the software update is downloaded, the device then waits to install the software update until pre-install conditions are satisfied. If the software update is non-critical and received during an initial installation of the device, the software update may not be installed until after installation of the device is complete. If the device is a thermostat, the device may delay installation of the software update until a controlled HVAC system in inactive. Control of the HVAC system may be disabled during installation of the software update.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: April 7, 2015
    Assignee: Google Inc.
    Inventors: Alastair R. Gourlay, David A. Bourne, Grant M. Erickson, Richard J. Schultz, David Sloo, Jonathan Solnit
  • Patent number: 8594850
    Abstract: Apparatus, systems, methods, and computer program products are disclosed for providing software updates to client devices. A client device (such as a thermostat) executes software to perform one or more functionalities of the device. Upon receiving an indicating that a software update is available, the device waits to download the software update until pre-download conditions are satisfied. Once the software update is downloaded, the device then waits to install the software update until pre-install conditions are satisfied. If the software update is non-critical and received during an initial installation of the device, the software update may not be installed until after installation of the device is complete. If the device is a thermostat, the device may delay installation of the software update until a controlled HVAC system in inactive. Control of the HVAC system may be disabled during installation of the software update.
    Type: Grant
    Filed: September 30, 2012
    Date of Patent: November 26, 2013
    Assignee: Nest Labs, Inc.
    Inventors: Alastair Robert Gourlay, David A. Bourne, Grant M. Erickson, Richard J. Schultz, David Sloo, Jonathan Solnit
  • Patent number: 8277763
    Abstract: The present invention relates to a method of processing analyte using a portable incubator apparatus. The incubator apparatus 10 has a plurality of cavities 20 each configured to receive analyte to be incubated. The method comprises: receiving analyte in each of the plurality of cavities; incubating the analyte in the plurality of cavities, the incubator apparatus being operable to control temperatures of analyte contained in the plurality of cavities independently of each other; and moving the incubator apparatus from a first location to a second location while the analyte is being incubated, the incubator apparatus being configured to maintain desired incubation conditions independently of a supply of electrical power and apparatus external to the incubator apparatus as the incubator apparatus is being moved.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: October 2, 2012
    Assignee: Centeo Biosciences Limited
    Inventors: Philipp Steinmann, Gabriela Juárez Martinez
  • Patent number: 8098163
    Abstract: The number of piglets dying at birth is reduced by providing a temperature sensor in a farrowing crate at the piglet area thereof on a movable cover so that, when the sow is expected to give birth, the sensor is located in the crate at a location to detect the presence of one or more piglets after birth. On detection by a control unit using the sensor signal of the one or more piglets, the sensor communicates a signal to a pager carried by an operator indicating to the operator that birth of piglets is in progress and activates a heating lamp for the piglets in the pen to attract them away from the area of the sow to reduce crushing. The control unit and the sensor also control the heat output. The cover can slide along the piglet area and can lift to expose the piglet area.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: January 17, 2012
    Assignee: Conception Ro-Main Inc
    Inventors: Serge Labrecque, Robert Labrecque, Germain Labrecque
  • Publication number: 20110315783
    Abstract: An insulated chamber having an interior chamber for storing items therein includes a phase change material to facilitate controlling the temperature of the interior chamber and the items. A heating device or cooling device may be used to melt or freeze the phase change material, which may be in various locations such as the walls of the chamber or packets which may serve as shelves and may be removable from the interior chamber with the items thereon. The packets may have recesses for receiving the items. The phase change material may be within capsules which may be within a liquid or a solid matrix. Controls may be provided to control humidity and carbon dioxide within the interior chamber.
    Type: Application
    Filed: November 8, 2010
    Publication date: December 29, 2011
    Applicant: CARON PRODUCTS AND SERVICES, INC.
    Inventors: MILTON F. BAKER, DALE C. BARNETT, ROBERT W. DOTTERER, DAVID N. FIGEL, STEPHEN C. KEISER
  • Patent number: 8083821
    Abstract: System for modifying the chemical composition of atmosphere within an enclosed space and incubator system including such a system. The concentration of oxygen within the enclosed space may be either increased or decreased using an electrochemical device. The concentration of carbon dioxide within the enclosed space may be increased using an electrochemical or chemical device. As necessary, purging of the system with ambient air can be a part of the process of controlling the chemical composition of the atmosphere. The present invention obviates the need to use pressurized gas cylinders to supply atmospheric gases to the enclosed space.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: December 27, 2011
    Assignee: Giner, Inc.
    Inventors: Linda A. Tempelman, Monjid Hamdan, Matthew P. Steinbroner
  • Patent number: 7516905
    Abstract: A power control system for automatically and proportionately metering power to a heating device used to create a warm microenvironment conducive to the health and growth of an animal during a predetermined incubation period is herein disclosed. The power control system transmits proportionally more power to a heating device where an ambient room temperature measured outside of the microenvironment is nearer a predetermined lower limit, and proportionately less power when the ambient room temperature measured outside of the microenvironment is nearer a predetermined upper limit. A method of providing a heated microenvironment within a larger environment also is disclosed.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: April 14, 2009
    Assignee: Novonix Corporation
    Inventors: Mark H. Jaeger, Thomas K. Hiniker, Michael W. Lundgreen
  • Patent number: 7003378
    Abstract: Systems and methods are described for a HVAC control system. A method, includes regulating user access to an interactive user interface of a programmable thermostat, each user identified by a personal identification number associated with a user type such as, for example, building owners, maintenance personnel, building tenants, and manufacturers.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: February 21, 2006
    Assignee: MMI Controls LP
    Inventor: Robert J. Poth
  • Patent number: 6981649
    Abstract: A power control device for automatically and proportionately metering power to a heating device used to create a warm microenvironment conducive to the health and growth of an animal during a predetermined incubation period is herein disclosed. The power control device transmits proportionally more power to a heating device where an ambient temperature measured outside of the microenvironment is nearer a predetermined lower limit, and proportionately less power when the ambient room temperature measured outside of the microenvironment is nearer a predetermined upper limit.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: January 3, 2006
    Assignee: Novonix Corporation
    Inventors: Mark H. Jaeger, Thomas K. Hiniker, Michael W. Lundgreen
  • Patent number: 6888105
    Abstract: A cover for a rack to control the temperature of the contents of the rack is provided. The cover comprises a frame having a heater, a soft hood with a top and a bottom, the hood extending downward from the frame, and a duct fluidly connecting the heater to the bottom of the hood whereby the duct introduces heated air into the bottom of the hood. Also included is a method of controlling the temperature of a reaction using the cover of the present invention.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: May 3, 2005
    Assignee: Alcan Packaging Pharmaceutical & Personal Care Inc.
    Inventors: Brian Seibert, Kenneth B. Carll
  • Patent number: 6593131
    Abstract: A cultivating apparatus designed so that cultivating containers for cultivating cultures can be mounted therein and the inside of the apparatus is hermetically sealed by closing a door of said apparatus to cultivate the cultures, is provided with a sterilizing lamp for emitting light for sterilizing germs such as bacteria, etc. contained in the gas in the apparatus. The sterilizing lamp comprises an ultraviolet lamp for emitting ultraviolet rays in which light of 200 nm or less in wavelength is cut off.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: July 15, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yuichi Tamaoki, Hiroki Busujima, Tetsuya Miyoshi, Tadahisa Saga
  • Patent number: 6482615
    Abstract: A method and apparatus for effecting rapid thermal cycling of samples, by producing a high-velocity air flow through a closed loop flow path, and energizing an electrical heater within the closed loop flow path to heat the air flowing therethrough to a desired temperature. A sample holder is introduced into the closed loop flow path for exposing the sample holder to the high-velocity heated air flowing therethrough for rapidly heating the sample. The sample is rapidly cooled to a desired temperature by de-energizing the electrical heater, and opening an air outlet from the closed loop flow path, while continuing to produce the high-velocity air flow therethrough.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: November 19, 2002
    Assignee: Integrated Genetic Devices Ltd.
    Inventors: Michael Tal, Joshua Livneh, Yoram Liran
  • Patent number: 6255103
    Abstract: A cultivating apparatus designed so that cultivating containers for cultivating cultures can be mounted therein and the inside of the apparatus is hermetically sealed by closing a door of said apparatus to cultivate the cultures, is provided with a sterilizing lamp for emitting light for sterilizing germs such as bacteria, etc. contained in the gas in the apparatus. The sterilizing lamp comprises an ultraviolet lamp for emitting ultraviolet rays in which light of 200 nm or less in wavelength is cut off.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: July 3, 2001
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yuichi Tamaoki, Hiroki Busujima, Tetsuya Miyoshi, Tadahisa Saga
  • Patent number: 6133548
    Abstract: In accordance with the apparatus of the invention, a preferably vertically upstanding housing is provided, internally thereof, with a rack structure having an upstanding series of shelves, or other microscope-slide-supporting members, spaced one above another providing multiple, substantially horizontal slots arranged alternatively with the shelves and leading into corresponding compartments between the shelves for receiving microscope slides to be heated, which preferably lie flatwise on and against the shelves so as to be heated by conduction from the shelves.The method of the invention constitutes the placing of the slides in the heating compartments, preferably with corresponding ends projecting therefrom so as to remain relatively cool for grasping during removal, and turning on the heat.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: October 17, 2000
    Inventors: Marilyn L. Grover, Patti A. Nelson, Gary D. Bradshaw, Barry O. Stokes, Dennis R. Briscoe, Carmelo G. Quirante
  • Patent number: 6117687
    Abstract: A controlled atmosphere incubator having an interior chamber surrounded by a heated water jacket. A glass access door of the chamber is directly heated by a clear, electrically conductive coating. The door is sealed against the perimeter of the opening by a readily replaceable gasket and is field reversible due to unique hinge mounting assemblies. An easily accessed blower assembly is located within the chamber and includes a HEPA filter readily replaceable by the user from within the chamber. A filtered air exchange system is provided for limiting the maximum level of humidity in the chamber. The incubator control maintains constant power output from the blower motor so that the heat output of the motor is also constant. A voltage compensated temperature control is also provided for the heaters associated with the water jacket. Compensation for environmental conditions inside the chamber is also provided by the control for producing more accurate readings of carbon dioxide levels.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: September 12, 2000
    Assignee: Forma Scientific, Inc.
    Inventor: Mark A. Hugh
  • Patent number: 6036633
    Abstract: An infant incubator having a heating system that provides a flow of heated air into the infant compartment and which exhausts air from the infant compartment. A temperature sensor is located in the air inlet of the warm air into the infant compartment and another temperature sensor is located in the air outlet of the air from the infant compartment. The system thus monitors the temperature of the air to the infant compartment and the air from the infant compartment. By analyzing the temperatures from the inlet and the outlet the overall incubator heating system can be controlled and yet a further advantage is provided by using the temperature information to recognize a fault or deficiency in the incubator system.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: March 14, 2000
    Assignee: Datex-Ohmeda, Inc.
    Inventor: Colin G. Hodge
  • Patent number: 5792427
    Abstract: A controlled atmosphere incubator having an interior chamber surrounded by a heated water jacket. A glass access door of the chamber is directly heated by a clear, electrically conductive coating. The door is sealed against the perimeter of the opening by a readily replaceable gasket and is field reversible due to unique hinge mounting assemblies. An easily accessed blower assembly is located within the chamber and includes a HEPA filter readily replaceable by the user from within the chamber. A filtered air exchange system is provided for limiting the maximum level of humidity in the chamber. The incubator control maintains constant power output from the blower motor so that the heat output of the motor is also constant. A voltage compensated temperature control is also provided for the heaters associated with the water jacket. Compensation for environmental conditions inside the chamber is also provided by the control for producing more accurate readings of carbon dioxide levels.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: August 11, 1998
    Assignee: Forma Scientific, Inc.
    Inventors: Mark A. Hugh, David V. Lohr, Peter J. Borton
  • Patent number: 5519188
    Abstract: An object of the present invention is to provide an incubator with improved control performance for the temperature and humidity in an inner box. The present invention is an incubator comprising an outer box having an inner portion made from a heat insulating material, an inner box disposed in the outer box through a space defined between the inner portion of the outer box and the inner box, a heating unit disposed in the space and adapted for heating the inside of the inner box, the heating unit being constructed of a plurality of heating means disposed at least on a bottom wall and left and right side walls of the inner box, and a control unit for independently controlling each of the heating means.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: May 21, 1996
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Tamaoki Yuichi, Sadami Hagiguchi, Kenji Nojima, Tetsuya Miyoshi
  • Patent number: 5418131
    Abstract: A carbon dioxide gas measurement and control system which comprises a thermal conductivity CO.sub.2 sensor and a humidity sensor which produce separate and independent output signals which are compared in a microprocessor, thereby generating a humidity compensated carbon dioxide gas measurement which is accurate to within .+-.0.1%.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: May 23, 1995
    Assignee: General Signal Corporation
    Inventor: Charles G. Butts
  • Patent number: 5162038
    Abstract: An infant warmer is provided with a heating element for directing radiant heat onto an infant support surface and a temperature sensing probe attachable to the skin of an infant. A heater control which, in an automatic mode, supplies a control signal to a heater power control which includes a component responsive to the difference between the actual temperature and a set temperature and a component which is added or subtracted in incremental amounts depending on whether the actual temperature is above or below the set point. The control also operates to reduce the power to the heater when the total energy supplied to the heater exceeds a maximum amount over a predetermined time interval. In manual mode, the power level is reduced when a preset temperature is reached or if the temperature is not reached after a predetermined time has elapsed. In addition, the heater power is interrupted whenever the control signal or the current to the heater exist independent of the other.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: November 10, 1992
    Assignee: Hill-Rom Company
    Inventor: John B. Wilker
  • Patent number: 5149654
    Abstract: An incubation apparatus for microtiter plates includes an heating chamber and a incubation chamber. The heating chamber has a controllable hot air generator over which are arranged air guide devices for equalizing and distributing a stream of hot air to the microtiter plates. Air return devices are provided for collecting and returning hot air to the hot air generator. The heating chamber can be closed by a gate, and incubation chamber is divided by shelves into a plurality of compartments for receiving the microtiter plates. It is possible to close each compartment with a gate, and the side walls of the compartments are provided with heating devices. Furthermore, the incubation apparatus is provided with a gripping and transporting device having a working platform that is vertically displaceable and having a horizontally displaceable gripping arm.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: September 22, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Jurgen Gross, Holger Pufahl, Dieter Sanger, Karl-Heinz Schaller, Hugo Wilmes
  • Patent number: 5090617
    Abstract: An automatic incubator comprises a chamber surrounded by a water jacket and insulation and provided with temperature and gas level sensors, a gas injection solenoid valve and separate water jacket and air heaters together with microprocessor proportional-integral-derivative control for regulating temperature and gas concentration within the chamber. A fan is provided to circulate gas within the chamber and distribute heat. Manual set controls for selecting desired temperature and gas levels are provided as well as temperature and gas level displays, high and low temperature and gas indicators, and a low water jacket level indicator.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: February 25, 1992
    Assignee: NAPCO Scientific Company
    Inventors: Alan J. Swan, Tuan A. Trinh
  • Patent number: 4892830
    Abstract: An environmentally controlled incubator is described in which the enclosure of the incubator chamber strongly attenuates the transmission of light having wavelengths below about 500 nm for protecting biological materials within the chamber from toxic effects of short wavelength light. The incubator also includes sensors for determining the oxygen and carbon dioxide concentration within the chamber and means for adding carbon dioxide, nitrogen or oxygen to the ambient gas within the incubator ion order to maintain the desired levels of carbon dioxide and oxygen. A thermostatically controlled heater and a humidification chamber warm and humidify the gas as it is circulated through the humidification chamber under control of a fan. An airlock is provided to allow biological materials to be placed within or removed from the chamber.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: January 9, 1990
    Assignee: Baylor College of Medicine
    Inventors: William Findley, William E. Gibbons
  • Patent number: 4840771
    Abstract: An incubation apparatus containing a rack or block with openings capable of receiving containers containing reagents. The rack or block is attached to a heating element for heating containers in the block. The block is driven by a motor actuated by a timer such that at the end of a predetermined time period the block is pivoted whereby containers will fall out of the block and onto a sloping surface on the housing of the incubator. This apparatus provides for the carrying out of reactions for a predetermined amount of time without the necessity of close monitoring of the incubation by laboratory personnel.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: June 20, 1989
    Assignee: Becton Dickinson & Company
    Inventors: Edward Williamson, Stanley Pfeiffer
  • Patent number: 4689303
    Abstract: Described herein is a controlled circulation incubator device having a plurality of plate receiving trays held by a tray bracket. Heated air is circulated by a blower and heater assembly around the trays held by the tray bracket and the temperature of the flowing heated air is sensed by a thermister included in a temperature controller circuit. The termister is coupled in a circuit so that its resistance determines the amount of heating provided by the heater portion of the blower and heater assembly. Each of the trays have a front lid and a back lip and the plurality of trays are offset from one another within the confines of the incubator device. The angle of the back lip and the amount of offset are selected so that each of the back lips are positioned in a generally planar surface. This causes the front lip, which extend at a slight angle from the receiving trays, to extend into the circulating air stream and air is forced between adjacent trays to heat the contents held by the trays.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: August 25, 1987
    Assignee: KVM Engineering, Inc.
    Inventors: Thomas L. Kraft, James W. Meador
  • Patent number: 4619030
    Abstract: During treatment of a specimen (10) in an evacuated chamber, the temperature of the specimen is controlled by varying the radiant heat flux to and from the specimen. The specimen is supported adjacent to but spaced apart from a heat sink (14) with a blackened surface (16), and between the specimen (10) and the heat sink (14) are one or more reflective elements (20) movable so as to cover a larger or a smaller fraction of the surface of the heat sink.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: October 28, 1986
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: Alan D. Marwick, Harry C. Sansom, deceased
  • Patent number: 4572427
    Abstract: An incubator for laboratory use which includes a housing defining a thermally insulated inner chamber having a controlled gas atmosphere. Devices for sensing characteristics of the incubator chamber atmosphere, and for conditioning the atmosphere, are positioned in a gas recirculation path outside the incubator chamber. The gas atmosphere of the incubator chamber circulates from a chamber outlet in an upper portion of the chamber, through the recirculation path, returning to the incubator chamber through a chamber inlet in a lower portion of the chamber. Included in the recirculation path are a blower for recirculating the chamber atmosphere, a filter, a CO.sub.2 sensor, and a humidifier. A microprocessor-based controller is responsive to the output of the CO.sub.2 sensor to effect the addition of CO.sub.2 to the recirculating gas to maintain a selected CO.sub.2 level in the chamber atmosphere. Upper and lower diffuser plates in the incubator chamber define upper and lower plenums, respectively.
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: February 25, 1986
    Assignee: Mallinckrodt, Inc.
    Inventors: Glenn D. Selfridge, Russell C. Tipton
  • Patent number: 4429829
    Abstract: A dual probe interactive, control system for accurately controlling the temperature within a specified area has a controlling temperature probe located for fast response times and used in association with a controllable setpoint for modulating a heating/cooling source. An indicating/reference temperature probe is also placed in the same enclosure at an optimum location for indicating actual temperature. The actual temperature is compared to the desired temperature to detect any droop or offset and the controllable setpoint is then adjusted accordingly.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: February 7, 1984
    Assignee: Mallinckrodt, Incorporated
    Inventor: Edmund L. Dutton
  • Patent number: 4384193
    Abstract: An incubating device particularly adapted for aligning an array of microscope slides bearing a tissue section, sample or specimen, and incubating the same with a series of test or reagent solutions at a higher-than-ambient temperature, is disclosed. The incubating device has a main body including a recess which substantially forms a tray in the main body. A plurality of substantially regularly spaced metal blocks are disposed in the recess, and a substantially flat upper surface of each metal block is adapted to receive and be in contact with a respective microscope slide.A heater is mounted underneath the main body to heat the main body, and to affect by direct conductance of heat, the heating of the metal blocks. A thermostat is mounted to the main body to monitor the temperature of the main body and to regulate the output of the heater in response thereto whereby the temperature of the metal blocks is maintained in a desired predetermined range.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: May 17, 1983
    Assignee: Immulok, Inc.
    Inventors: Gary S. Kledzik, Glenn A. Wilson, Mark D. Mahone
  • Patent number: 4054416
    Abstract: The apparatus comprises a turntable carrying, in a circular array centered on a central rotational axis of the turntable, a plurality of vials extending below the underside of the turntable. A stepper motor imparts stepwise rotational motion to the turntable so that during dwell periods of the turntable, specimens in the vials can be investigated optically.Air in a space below the turntable and bounded laterally and at the bottom by an enclosure is circulated by a rotating vane, and a thermistor, responsive to the temperature in the region of the vials, controls a heater in the space below the turntable so as to maintain the temperature of the vials substantially at a predetermined value.
    Type: Grant
    Filed: August 11, 1976
    Date of Patent: October 18, 1977
    Assignee: Secretary of State for Social Services
    Inventor: Ian David Duff
  • Patent number: 4045179
    Abstract: The apparatus comprises a turntable carrying, in a circular array centered on a central rotational axis of the turntable, a plurality of vials extending below the underside of the turntable. A stepper motor imparts stepwise rotational motion to the turntable so that during dwell periods of the turntable, specimens in the vials can be investigated optically.Air in a space below the turntable and bounded laterally and at the bottom by an enclosure is circulated by a rotating vane, and a thermistor, responsive to the temperature in the region of the vials, controls a heater in the space below the turntable so as to maintain the temperature of the vials at a predetermined value.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: August 30, 1977
    Assignee: Secretary of State for Social Services
    Inventor: Roger Abraham Bunce
  • Patent number: 4034740
    Abstract: A method and apparatus for controlling the temperature inside an incubator. The incubator includes a heater for heating the air circulating therein. A temperature controller measures the skin temperature of an infant therein and at least one other temperature within the incubator environment which has a significant effect on the infant's skin temperature. The controller responds to the measured temperatures and other calculated temperatures to either turn on or turn off the incubator air heater so as to keep the temperature difference between the infant's skin and the environment, which affects skin temperature, below a preset maximum. The controller also causes the rate of temperature changes within the incubator to be minimized.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: July 12, 1977
    Inventors: Harry D. Atherton, Neil K. Edwards, Paul H. Perlstein
  • Patent number: RE29880
    Abstract: The apparatus comprises a turntable carrying, in a circular array centered n a central rotational axis of the turntable, a plurality of vials extending below the underside of the turntable. A stepper motor imparts stepwise rotational motion to the turntable so that during dwell periods of the turntable, specimens in the vials can be investigated optically.Air in a space below the turntable and bounded laterally and at the bottom by an enclosure is circulated by a rotating vane, and a thermistor, responsive to the temperature in the region of the vials, controls a heater in the space below the turntable so as to maintain the temperature of the vials substantially at a predetermined value.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: January 16, 1979
    Assignee: The Secretary of State for Social Services in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventor: Ian D. Duff
  • Patent number: RE30730
    Abstract: The apparatus comprises a turntable carrying, in a circular array centered on a central rotational axis of the turntable, a plurality of vials extending below the underside of the turntable. A stepper motor imparts stepwise rotational motion to the turntable so that during dwell periods of the turntable, specimens in the vials can be investigated optically.Air in a space below the turntable and bounded laterally and at the bottom by an enclosure is circulated by a rotating vane, and a thermistor, responsive to the temperature in the region of the vials, controls a heater in the space below the turntable so as to maintain the temperature of the vials substantially at a predetermined value.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: September 1, 1981
    Assignee: National Research Development Corporation
    Inventor: Ian D. Duff