Patents Assigned to Hanlab Corporation
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Publication number: 20120302419Abstract: The present invention relates to an automatic balance adjusting centrifuge which calculates the magnitude and the location of imbalance of itself based on the vibration generated in the dynamic state and automatically compensate for the imbalance based on the calculation, and the control method thereof. The method includes: (a) measuring the amount of vibration of a rotor of a centrifuge, supporting buckets that load samples, at a predetermined rotational velocity; (b) determining whether the amount of vibration measured in step (a) is greater than an allowed value; and (c) when the amplitude of the vibration is greater than the allowed value, compensating for a weight imbalance of the rotor by an amount calculated based on the vibration amount measured in step (a) and returning to step (a), otherwise, performing a centrifugal separation by accelerating the rotor to a working velocity.Type: ApplicationFiled: August 6, 2012Publication date: November 29, 2012Applicant: HANLAB CORPORATIONInventors: Heuigeun RYU, Ohhun KWON, Sunghyuk LEE, Jaehong OH
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Patent number: 8292793Abstract: The present invention relates to a control method of a centrifuge using balancer wherein a balancer containing balls, a liquid, or both balls and a liquid are provided, thereby helping the rotor rotate more stably. More particularly, the centrifuge comprises a motor, a rotational shaft of the motor projected from said motor, a rotor, a main body, and a balancer which contains compensation material in a balancing space formed by a cover that is coupled to said main body, wherein the balancing for the unbalance due to the loaded samples is executed more accurately and stably.Type: GrantFiled: July 31, 2009Date of Patent: October 23, 2012Assignee: Hanlab CorporationInventors: Heuigeun Ryu, Jong-Mok Lee, Sungha Chang
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Patent number: 8251883Abstract: The present invention relates to an automatic balance adjusting centrifuge which calculates the magnitude and the location of imbalance of itself based on the vibration generated in the dynamic state and automatically compensate for the imbalance based on the calculation, and the control method thereof. The method includes: (a) measuring the amount of vibration of a rotor of a centrifuge, supporting buckets that load samples, at a predetermined rotational velocity; (b) determining whether the amount of vibration measured in step (a) is greater than an allowed value; and (c) when the amplitude of the vibration is greater than the allowed value, compensating for a weight imbalance of the rotor by an amount calculated based on the vibration amount measured in step (a) and returning to step (a), otherwise, performing a centrifugal separation by accelerating the rotor to a working velocity.Type: GrantFiled: September 2, 2008Date of Patent: August 28, 2012Assignee: Hanlab CorporationInventors: Heuigeun Ryu, Ohhun Kwon, Sunghyuk Lee, Jaehong Oh
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Patent number: 7942801Abstract: The present invention relates to a centrifuge including a balancer which contains balls and liquid and enables a rotor to rotate steadily. More concretely, the centrifuge comprises a motor, a motor shaft protruded from the motor, a rotor, and a balancer which includes a space constructed with a balancer body and a cover unit combining with the balancer body and formed to contain balls and liquid.Type: GrantFiled: September 2, 2008Date of Patent: May 17, 2011Assignee: Hanlab CorporationInventors: Heuigeun Ryu, Ohhun Kwon, Sungha Chang
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Patent number: 7819792Abstract: The present invention relates to the automatic balance adjusting centrifuge that enhances the efficiency of space utilization by simplifying the structure as well as supports a precise movement by improving the structure of the balance weight transport apparatus in the automatic balance adjusting centrifuge that compensates the unbalance of the centrifugal force by transferring the balance weight equipped in the rotor rotational arm. According to the automatic balance adjusting centrifuge of the present invention, the structure is simplified as well as the precise and exact transfer of the balance weight is possible by connecting the balance weight with the axis of the motor directly and adopting the length sensor. Furthermore, the efficiency of space utilization is enhanced because the axis of rotation of the balance weight transfer motor is in radial direction of the rotational arm.Type: GrantFiled: September 2, 2008Date of Patent: October 26, 2010Assignee: Hanlab CorporationInventors: Heuigeun Ryu, Ohhun Kwon, Sunghyuk Lee, Sanghoon Lee
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Publication number: 20100069216Abstract: The present invention relates to a control method of a centrifuge using balancer wherein a balancer containing balls, a liquid, or both balls and a liquid are provided, thereby helping the rotor rotate more stably. More particularly, the centrifuge comprises a motor, a rotational shaft of the motor projected from said motor, a rotor, a main body, and a balancer which contains compensation material in a balancing space formed by a cover that is coupled to said main body, wherein the balancing for the unbalance due to the loaded samples is executed more accurately and stably.Type: ApplicationFiled: July 31, 2009Publication date: March 18, 2010Applicant: HANLAB CORPORATIONInventors: Heuigeun Ryu, Ohhun Kwon, Sungha Chang
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Publication number: 20100009831Abstract: The present invention relates to the automatic balance adjusting centrifuge that enhances the efficiency of space utilization by simplifying the structure as well as supports a precise movement by improving the structure of the balance weight transport apparatus in the automatic balance adjusting centrifuge that compensates the unbalance of the centrifugal force by transferring the balance weight equipped in the rotor rotational arm. According to the automatic balance adjusting centrifuge of the present invention, the structure is simplified as well as the precise and exact transfer of the balance weight is possible by connecting the balance weight with the axis of the motor directly and adopting the length sensor. Furthermore, the efficiency of space utilization is enhanced because the axis of rotation of the balance weight transfer motor is in radial direction of the rotational arm.Type: ApplicationFiled: September 2, 2008Publication date: January 14, 2010Applicant: HANLAB CORPORATIONInventors: Heuigeun RYU, Ohhun KWON, Sunghyuk Lee, Sanghoon LEE
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Publication number: 20100009833Abstract: The present invention relates to an automatic balance adjusting centrifuge which calculates the magnitude and the location of imbalance of itself based on the vibration generated in the dynamic state and automatically compensate for the imbalance based on the calculation, and the control method thereof. The automatic balance adjusting centrifuge of the present invention comprises: a rotor supporting buckets that load samples; a rotation driving means for rotating the rotor; a vibration detecting means for detecting vibration; a imbalance compensating means for compensating the weight imbalance of the rotor; and a control means for controlling the imbalance compensating means to compensate for the weight imbalance of the rotor after calculating the imbalance based on the amount of the vibration detected by the vibration detecting means in the state of rotating the rotor with a predetermined rotational velocity.Type: ApplicationFiled: September 2, 2008Publication date: January 14, 2010Applicant: HANLAB CORPORATIONInventors: Heuigeun RYU, Ohhun KWON, Sunghyuk Lee, Jaehong OH
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Publication number: 20100009835Abstract: The present invention relates to a centrifuge including a balancer which contains balls and liquid and enables a rotor to rotate steadily. More concretely, the centrifuge comprises a motor, a motor shaft protruded from the motor, a rotor, and a balancer which includes a space constructed with a balancer body and a cover unit combining with the balancer body and formed to contain balls and liquid.Type: ApplicationFiled: September 2, 2008Publication date: January 14, 2010Applicant: HANLAB CORPORATIONInventors: Heuigeun RYU, Ohhun KWON, Sungha CHANG
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Publication number: 20080234121Abstract: The invention relates to an automatic balancing centrifugal apparatus by fluid compensation, which compensates a load imbalance among buckets holding samples by injecting a fluid into the buckets or sucking the fluid from the buckets, thereby simplifying the overall structure of the centrifugal apparatus, increasing the durability, and centrifuging a large quantity of samples under various high-speed rotation conditions smoothly.Type: ApplicationFiled: September 15, 2005Publication date: September 25, 2008Applicant: HANLAB CORPORATIONInventors: Hak Chul Kim, Chong Tae Park
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Patent number: 7297097Abstract: Disclosed is a lift type weight measuring centrifuge which is able to measure the weight of a measurement object after spatially isolating the measurement object. The centrifuge includes an upper sensing plate to move upwards, and a weight sensing mechanism provided under the upper sensing plate to sense a weight of the measurement object seated on the upper sensing plate. The centrifuge further includes a lift mechanism to move both the upper sensing plate and the weight sensing mechanism vertically, and a control device to control the operation of the lift mechanism and to measure the weight of the measurement object using a weight sensing signal output from the weight sensing mechanism.Type: GrantFiled: November 18, 2004Date of Patent: November 20, 2007Assignee: Hanlab CorporationInventors: Heui-Geun Ryu, Hak-Chul Kim
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Patent number: 7285085Abstract: An automatic balancing rotor for a centrifuge which compensates for imbalance of a centrifugal force occurring due to a weight difference of samples. The automatic balancing rotor includes a plurality of rotating arms spaced at regular angular intervals, with a plurality of buckets containing the samples supported by the rotating arms. The automatic balancing rotor includes a balance weight provided in each of the rotating arms to be movable in a radial direction, thus compensating for imbalanced centrifugal force applied to the buckets, and a balance weight mover which horizontally moves the balance weight in the radial direction of each of the rotating arms.Type: GrantFiled: November 19, 2004Date of Patent: October 23, 2007Assignee: Hanlab CorporationInventors: Do-Gyoon Kim, Heui-Geun Ryu
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Publication number: 20070027014Abstract: The present invention provides a lift type weight measuring apparatus (400) which is able to measure the weight of a measurement object after spatially isolating the measurement object. The lift type weight measuring apparatus (400) includes an upper sensing plate (410) to move upwards, and weight sensing means provided under the upper sensing plate (410) to sense a weight of the measurement object seated on the upper sensing plate. The lift type weight measuring apparatus (400) further includes lift means to move both the upper sensing plate and the weight sensing means vertically, and control means to control the operation of the lift means and to measure the weight of the measurement object using a weight sensing signal output from the weight sensing means.Type: ApplicationFiled: November 18, 2004Publication date: February 1, 2007Applicant: HANLAB CORPORATIONInventors: Heui-Geun Ryu, Hak-Chul Kim
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Patent number: 6949063Abstract: A centrifugal machine of automatic balance type is provided for detecting an unbalance in a specimen mounted on a rotor lever before every centrifugal machining, and for moving horizontally the rotor lever according to detected results, maintaining automatic balance, thereby preventing destruction of a specimen due to an unbalance of the rotor, and extending the life of the machine.Type: GrantFiled: April 1, 2002Date of Patent: September 27, 2005Assignee: Hanlab CorporationInventors: Dou-Ha Baik, Heui-Geun Ryu