| Patent Number |
Title Of Patent |
Date Issued |
| 7464450 |
Attachment and release apparatus and method |
December 16, 2008 |
| An attachment and release apparatus for attaching a rotor to a centrifuge drive assembly and for attaching a cover to the rotor. The apparatus includes a knob, a cover wherein the knob has a plunger disposed therein. The apparatus also includes an adapter having detents and a drive spind |
| 7458928 |
Centrifuge energy management system and method |
December 2, 2008 |
| A method and apparatus for a centrifuge energy management system prevents the energy level of a rotor from exceeding a predetermined containment limit for the centrifuge by monitoring the energy level and either terminating a run operation of the centrifuge if it surpasses the contai |
| 7166978 |
Motor temperature sensor system and method to determine motor performance |
January 23, 2007 |
| An electric motor system includes an electric motor, a temperature sensor mounted therein capable of measuring a local temperature and generating a temperature related signal, and a processor configured to calculate an actual temperature of a rotor magnet from the temperature related sig |
| 7137262 |
Supplemental heat control apparatus and method for freezer/refrigeration equipment |
November 21, 2006 |
| A method and apparatus that provides supplemental heat from a heat source based upon the operating environment of a refrigeration or freezer. The supplemental heat is automatically controlled to provide heating to a sealing area to prevent condensation from forming. |
| 7093460 |
Cooling circuit apparatus and method |
August 22, 2006 |
| A cooling circuit through which coolant flows, for use with a refrigerated cabinet. The cooling circuit includes a compressor and a condenser with a flow path extending there between. The cooling circuit also includes an evaporator and a second flow path that extends between the evaporat |
| 7081081 |
Bayonet coupling mechanism for a centrifuge |
July 25, 2006 |
| A centrifuge having a motor shaft, a rotor that engages the motor shaft and a cover for securing the rotor to the rotor shaft. The cover has a knob with a coupling disposed therein. The coupling functions to simultaneously secure the rotor cover to the rotor body and the rotor body t |
| 7011618 |
Attachment and release apparatus for a centrifuge rotor cover |
March 14, 2006 |
| An attachment and release apparatus for attaching a rotor to a centrifuge drive assembly and for attaching a cover to the rotor. The apparatus includes a knob, a cover wherein the knob has a plunger disposed therein. The apparatus also includes an adapter having detents and a drive spind |
| 6981304 |
Cover attachment method |
January 3, 2006 |
| A rotor cover attach and release apparatus for use with a centrifuge. The apparatus includes a knob, a cover and housing that are both affixed to the knob. The apparatus also includes an adapter having detents pitched at an angle, that is connected to the housing along with a plunger tha |
| 6978513 |
Method and apparatus for stopping a moving member |
December 27, 2005 |
| A system and method for stopping a moving member located on a stationary member. The system includes sliders or rollers configured to move along a track. The track has a discontinuity to move the moving member to engage a friction pad to slow the moving member. The system includes a stri |
| 6943509 |
Rotor speed control device and method |
September 13, 2005 |
| Kinetic energy of a rotor is substantially prevented from exceeding a predetermined amount of kinetic energy by determining a first kinetic energy of the rotor spinning at a first rotational velocity and determining whether the first kinetic energy exceeds the predetermined amount of |
| 6918312 |
Validation device and method |
July 19, 2005 |
| A testing apparatus is disclosed that includes an expandable mechanical structure, and logging devices that are coupled to the mechanical structure and serially networked together. The testing apparatus of the present invention is utilized to accommodate storage units, such as refrig |
| 6908224 |
Temperature sensor pre-calibration method and apparatus |
June 21, 2005 |
| A centrifuge temperature pre-calibration apparatus including a memory storage device having correction coefficients for temperature, a controller, an un-calibrated temperature sensor and a calibrated temperature display device connected to a computer which based on data from these co |
| 6903525 |
Motor temperature sensor system and method to determine motor performance |
June 7, 2005 |
| A method and apparatus is herein disclosed for determining the motor performance of an electric motor through monitoring the temperature of rotor magnets. The temperature is determined by initially heating the rotor magnets to two known temperatures and subsequently recording the tem |
| 6877328 |
Compressor operation following sensor failure |
April 12, 2005 |
| A compressor is controlled by generating and storing a compressor operation log. In addition, a compressor operation is selected from the compressor operation log in response to a sensor failure. Furthermore, the compressor is modulated according to the selected compressor operation in r |
| 6845632 |
Cooling circuit apparatus and method |
January 25, 2005 |
| A cooling circuit through which coolant flows, for use with a refrigerated cabinet. The cooling circuit includes a compressor and a condenser with a flow path extending there between. The cooling circuit also includes an evaporator and a second flow path that extends between the evaporat |
| 6845628 |
Method and apparatus for temperature control in a refrigeration device |
January 25, 2005 |
| A temperature control device including a temperature sensor which senses a temperature at a specified location within the refrigeration apparatus. The temperature control device has first flow valve that is operable to selectively increase or decrease the flow of refrigerant in response |
| 6843100 |
Thermal conductivity measurement of carbon dioxide gas with relative humidity and temperature co |
January 18, 2005 |
| A carbon dioxide gas measurement and control system and method which comprises a thermal conductivity absolute humidity sensor which measures carbon dioxide during dynamic temperature and humidity changes by isolating the particular sensor response for absolute humidity and temperatu |
| 6802347 |
Electronic fill for water jacketed incubators |
October 12, 2004 |
| An apparatus and method is provided to fill liquids in a water jacket of an enclosed chamber. A valve, such as a solenoid can be actuated remotely to open and allow liquids to fill the water jacket. A sensor, such as a fill level sensor can sense and can communicate the amount of liquid |
| 6800053 |
Method and apparatus for sterilizing internal passages of a centrifuge centrate gate |
October 5, 2004 |
| Method and apparatus for sterilization of laboratory equipment, which are particularly suited for sterilization of internal passages of a centrifuge centrate gate assembly. |
| 6764438 |
Cover attachment apparatus |
July 20, 2004 |
| A rotor cover attach and release apparatus for use with a centrifuge. The apparatus includes a knob, a cover and housing that are both affixed to the knob. The apparatus also includes an adapter having detents pitched at an angle, that is connected to the housing along with a plunger tha |
| 6747427 |
Motor torque control to reduce possibility of centrifuge rotor accidents |
June 8, 2004 |
| Controlling the torque of a motor by driving a centrifuge rotor connected to the motor; increasing a motor torque of the motor to a specified level; detecting revolutions per minute of the centrifuge rotor; adjusting the motor torque based on detected revolutions per minute; decreasing t |
| 6723238 |
Blood centrifuge cup having a replaceable compartment for filter support |
April 20, 2004 |
| A centrifuge bucket, for holding a first article, further comprises a compartment for holding a second article, and an arrangement for securing the compartment to an outer surface of the centrifuge bucket. |
| 6680997 |
System and method for enabling a high torque/high speed brushless DC motor |
January 20, 2004 |
| A high torque/high speed brushless DC motor system for controlling both the speed and torque of the motor including a rotor and a stator, the stator of the motor including a first, second and third winding. The system further includes means for sensing the position of the rotor and means |
| 6679820 |
Method for energy management and overspeed protection of a centrifuge |
January 20, 2004 |
| There is provided a method for limiting an operating speed of a rotor installed in a centrifuge system. The method includes the steps of (a) determining whether an actual change in energy required to accelerate the rotor from a first speed to a second speed is within a predetermined rang |
| 6665924 |
Centrifuge having a spring-loaded nut for securing a rotor to a drive cone |
December 23, 2003 |
| A method and apparatus for securing a rotor to a drive cone in a centrifuge includes positioning a rotor upon a drive cone and providing a nut movable in an axial direction in the drive cone. A screw passing through a region of the rotor engages the nut, and a spring is located between a |
| 6638203 |
Centrifuge rotor shaft vertical displacement restriction device with angular deflection capabili |
October 28, 2003 |
| In a centrifuge comprising a drive shaft assembly, a diaphragm disposed about the drive shaft assembly reduces noise and vibration. The diaphragm permits the drive shaft assembly to pivot off a vertical axis while substantially limiting horizontal displacement thereof. Also, where a |
| 6616590 |
Low-shear feeding system for use with centrifuges |
September 9, 2003 |
| There is provided a centrifugal separator for solid-liquid separations. The centrifugal separator comprises (a) an accelerator rotatable at an angular velocity, .omega. about an axis, and having an inside surface with a point on the axis, and (b) a nozzle for introducing a feed stream at |
| 6601396 |
Freezer defrost method and apparatus |
August 5, 2003 |
| Methods and apparatus for freezer defrost, which are particularly suited for an automated system, include the formulation of algorithms utilized for this purpose. The algorithms are included in the firmware of an embedded controller and operate the freezer defrost cycle at temperature |
| 6368265 |
Method and system for energy management and overspeed protection of a centrifuge |
April 9, 2002 |
| A method for limiting an operating speed of a centrifuge rotor includes the steps of determining whether an actual parameter value of the rotor is within a predetermined range of an expected parameter value of the rotor, and limiting the operating speed when the actual parameter value is |
| 6350225 |
Support bridge for preventing centrifugal forces from collapsing a container placed in a centrif |
February 26, 2002 |
| A container assembly having a support bridge to prevent centrifugal forces from collapsing the container. A lid is positioned on top of the container, and the support bridge is disposed between the lid and an upper portion of the container. |
