Patents by Inventor Winston Glenn Walker
Winston Glenn Walker 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).
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Patent number: 10641731Abstract: An electrophoresis running tank assembly uses two opposed rows of LEDs to illuminate DNA-containing gel on a transparent tray positioned between the rows. A respective cylindrical lens is positioned horizontally between each row and a respective edge of the tray. The optical axis of the illumination light is midway between a bottom surface of the gel tray and a top surface of the gel.Type: GrantFiled: October 24, 2017Date of Patent: May 5, 2020Assignee: C.C. IMEXInventors: Winston Glenn Walker, Richard Chan, Rita M. Wong, Ramey K. Chan, Po Ling Cheng
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Publication number: 20180045677Abstract: An electrophoresis running tank assembly uses two opposed rows of LEDs to illuminate DNA-containing gel on a transparent tray positioned between the rows. A respective cylindrical lens is positioned horizontally between each row and a respective edge of the tray. The optical axis of the illumination light is midway between a bottom surface of the gel tray and a top surface of the gel.Type: ApplicationFiled: October 24, 2017Publication date: February 15, 2018Inventors: Winston Glenn Walker, Richard Chan, Rita M. Wong, Ramey K. Chan, Po Ling Cheng
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Patent number: 9835587Abstract: An electrophoresis running tank assembly uses two opposed rows of LEDs to illuminate DNA-containing gel on a transparent tray positioned between the rows. A respective cylindrical lens is positioned horizontally between each row and a respective edge of the tray. The optical axis of the illumination light is midway between a bottom surface of the gel tray and a top surface of the gel.Type: GrantFiled: April 1, 2014Date of Patent: December 5, 2017Assignee: C.C. IMEXInventors: Winston Glenn Walker, Richard Chan, Rita M. Wong, Ramey K. Chan, Po Ling Cheng
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Publication number: 20150276673Abstract: An electrophoresis running tank assembly uses two opposed rows of LEDs to illuminate DNA-containing gel on a transparent tray positioned between the rows. A respective cylindrical lens is positioned horizontally between each row and a respective edge of the tray. The optical axis of the illumination light is midway between a bottom surface of the gel tray and a top surface of the gel.Type: ApplicationFiled: April 1, 2014Publication date: October 1, 2015Applicant: C.C. IMEX dba EMBI TECInventors: Winston Glenn Walker, Richard Chan, Rita M. Wong, Ramey K. Chan, Po Ling Cheng
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Patent number: 8974651Abstract: The present invention discloses apparatuses and methods for the visualization of fluorophores in biological systems such as electrophoresis gels and cell cultures. Preferred embodiments of the apparatuses consists of a tray or tank having one or more light sources disposed to direct light through an electrophoresis gel disposed within the vessel such that the luminescence from fluorophores in the gel are easily visualized.Type: GrantFiled: April 17, 2011Date of Patent: March 10, 2015Assignee: C.C. IMEXInventors: Richard Chan, Winston Glenn Walker, Rita M. Wong, Jason In
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Publication number: 20110253541Abstract: The present invention discloses apparatuses and methods for the visualization of fluorophores in biological systems such as electrophoresis gels and cell cultures. Preferred embodiments of the apparatuses consists of a tray or tank having one or more light sources disposed to direct light through an electrophoresis gel disposed within the vessel such that the luminescence from fluorophores in the gel are easily visualized.Type: ApplicationFiled: April 17, 2011Publication date: October 20, 2011Inventors: Richard Chan, Winston Glenn Walker, Rita M. Wong, Jason In
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Patent number: 7860481Abstract: A low power rf control system includes a controller that operates at a low clock speed when an associated rf receiver is deenergized and a high clock speed when the controller energizes the receiver. The receiver can be on for a short period, off for a short period when no preamble pulses from a remote control device are received, on for a short period, and then off for a longer period until the next cycle. The receiver remains on to process a command signal when a preamble signal is detected. A DC-DC down converter can be used as a power supply for the receiver, and a SAW resonant circuit can be used as an IF oscillator for the receiver. An LC filter can be associated with the receiver for filtering the IF signal.Type: GrantFiled: July 9, 2010Date of Patent: December 28, 2010Assignee: Somfy SASInventors: Winston Glenn Walker, David A Saar
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Publication number: 20100279639Abstract: A low power rf control system includes a controller that operates at a low clock speed when an associated rf receiver is deenergized and a high clock speed when the controller energizes the receiver. The receiver can be on for a short period, off for a short period when no preamble pulses from a remote control device are received, on for a short period, and then off for a longer period until the next cycle. The receiver remains on to process a command signal when a preamble signal is detected. A DC-DC down converter can be used as a power supply for the receiver, and a SAW resonant circuit can be used as an IF oscillator for the receiver. An LC filter can be associated with the receiver for filtering the IF signal.Type: ApplicationFiled: July 9, 2010Publication date: November 4, 2010Applicant: Somfy SASInventors: Winston Glenn WALKER, David A. SAAR
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Patent number: 7783277Abstract: A low power rf control system includes a controller that operates at a low clock speed when an associated rf receiver is deenergized and a high clock speed when the controller energizes the receiver. The receiver can be on for a short period, off for a short period if no preamble pulses from a remote control device are received, on for a short period, and then off for a longer period until the next cycle. The receiver remains on to process a command signal when a preamble signal is detected. A DC-DC down converter can be used as a power supply for the receiver, and a SAW resonant circuit can be used as an IF oscillator for the receiver. An LC filter can be associated with the receiver for filtering the IF signal.Type: GrantFiled: March 24, 2004Date of Patent: August 24, 2010Assignee: Somfy SASInventors: Winston Glenn Walker, David A. Saar
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Publication number: 20090010811Abstract: An illumination system enhances a manual human process associated with a multiwell plate having an array of wells thereon. The illumination system includes a compact self-contained apparatus including an illuminator coupled to a human interface. The human interface is configured to receive an operating parameter input and a start input. The illuminator has a protective surface for receiving the well plate and a plurality of underlying light sources configured to initiate a sequence of different well subarray indications in response to the start input and pursuant to the operating parameter input.Type: ApplicationFiled: July 5, 2007Publication date: January 8, 2009Inventors: Richard T. L. Chan, Winston Glenn Walker, David Alvin Tyvoll
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Patent number: 7259485Abstract: A braking magnet is attached to the housing of a motor of a motorized component such as a window covering. With this structure the motor is braked from turning under the weight of the window covering when deenergized.Type: GrantFiled: September 9, 2005Date of Patent: August 21, 2007Assignee: Somfy SASInventors: Pierre-Emmanuel Cavarec, Winston Glenn Walker
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Patent number: 7091682Abstract: A logic chip that controls the motor of a motorized window covering or other object includes a clock. A frequency stabilizer circuit is provided to receive input voltage and to output to the clock a current that is a function of the voltage and temperature over a range of input voltage values and over a range of ambient temperature values so that the frequency output by the oscillator is constant.Type: GrantFiled: October 26, 2004Date of Patent: August 15, 2006Assignee: Harmonic Design, Inc.Inventor: Winston Glenn Walker
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Patent number: 7002310Abstract: The position and speed and, in some embodiments, direction of rotation of a motor for turning the rod of an object such as a window covering is determined by placing a braking magnet next to the motor and a piezoelectric element between the braking magnet and motor. As the motor rotates, the piezoelectric element generates a signal that can be used to determine the speed of rotation and also the position of the motor (and, hence, the position of the object being moved). The magnet brakes the motor from turning under the weight of the object when the motor is deenergized.Type: GrantFiled: February 25, 2004Date of Patent: February 21, 2006Assignee: Somfy SasInventors: Pierre-Emmanuel Cavarec, Winston Glenn Walker
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Patent number: 6967418Abstract: Two braking magnets are attached to the housing of a motor of a motorized component such as a window covering, with one magnet north face down and the other magnet south face down. With this structure the motor is braked from turning under the weight of the window covering when deenergized, while during operation the average null value of the braking field results in minimal drag on the motor.Type: GrantFiled: June 7, 2004Date of Patent: November 22, 2005Assignee: Somfy SASInventors: Pierre-Emmanuel Cavarec, Winston Glenn Walker
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Patent number: 6924615Abstract: A motor for turning the rod of an object such as a window covering is attached to an elongated ferromagnetic bar. Magnets are closely spaced from the bar, and as the bar rotates to cut the magnetic field lines, pickup coils generate signals that can be used to determine the direction and speed of rotation and also the position of the motor (and, hence, the position of the object being moved). The magnets brake the motor from turning under the weight of the object when the motor is deenergized.Type: GrantFiled: October 31, 2003Date of Patent: August 2, 2005Assignee: Somfy SASInventors: Pierre-Emmanuel Cavarec, Winston Glenn Walker
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Patent number: 6870338Abstract: A small permanent magnet is affixed to the protruding portion of a rotor of a motor that is coupled to gears in a gear enclosure. The rod of a window covering is coupled to the gears such that when the motor is energized by a user command signal, the window covering moves. At least one pick-up coil is affixed to the receptacle of the gear enclosure, such that when the motor with magnet turns, the pick-up coil senses magnetic pulses that can be used to determine the speed, position, and direction of rotation of the motor.Type: GrantFiled: June 11, 2003Date of Patent: March 22, 2005Assignee: Harmonic Design, Inc.Inventors: Winston Glenn Walker, Norman C. Walker
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Publication number: 20040090201Abstract: A motor for turning the rod of an object such as a window covering is attached to an elongated ferromagnetic bar. Magnets are closely spaced from the bar, and as the bar rotates to cut the magnetic field lines, pickup coils generate signals that can be used to determine the direction and speed of rotation and also the position of the motor (and, hence, the position of the object being moved). The magnets brake the motor from turning under the weight of the object when the motor is deenergized.Type: ApplicationFiled: October 31, 2003Publication date: May 13, 2004Applicant: Harmonic Design, Inc.Inventors: Pierre-Emmanuel Cavarec, Winston Glenn Walker
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Publication number: 20040011477Abstract: A small permanent magnet is affixed to the protruding portion of a rotor of a motor that is coupled to gears in a gear enclosure. The rod of a window covering is coupled to the gears such that when the motor is energized by a user command signal, the window covering moves. At least one pick-up coil is affixed to the receptacle of the gear enclosure, such that when the motor with magnet turns, the pick-up coil senses magnetic pulses that can be used to determine the speed, position, and direction of rotation of the motor.Type: ApplicationFiled: June 11, 2003Publication date: January 22, 2004Inventors: Winston Glenn Walker, Norman C. Walker