Patents by Inventor Suresha Chandrasekhara
Suresha Chandrasekhara 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: 11891839Abstract: An exit device according to one embodiment includes a plurality of sensors and an electronic dogging mechanism. The exit device is configured to locally analyze sensor data to determine the security state of the exit device, report data to a management system via a wireless communication channel established between the exit device and the management system, and receive and process instructions to perform an electronic dogging operation.Type: GrantFiled: October 4, 2022Date of Patent: February 6, 2024Assignee: Schlage Lock Company LLCInventors: Paul R. Arlinghaus, Jack R. Lehner, Jr., Matthew A. Phillips, Suresha Chandrasekhara, Mohammed M. Ali, Evan Ballard
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Publication number: 20230304326Abstract: An exit device according to one embodiment includes a plurality of sensors and an electronic dogging mechanism. The exit device is configured to locally analyze sensor data to determine the security state of the exit device, report data to a management system via a wireless communication channel established between the exit device and the management system, and receive and process instructions to perform an electronic dogging operation.Type: ApplicationFiled: October 4, 2022Publication date: September 28, 2023Inventors: Paul R. Arlinghaus, Jack R. Lehner, JR., Matthew A. Phillips, Suresha Chandrasekhara, Mohammed M. Ali, Evan Ballard
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Patent number: 11459798Abstract: An exit device according to one embodiment includes a plurality of sensors and an electronic dogging mechanism. The exit device is configured to locally analyze sensor data to determine the security state of the exit device, report data to a management system via a wireless communication channel established between the exit device and the management system, and receive and process instructions to perform an electronic dogging operation.Type: GrantFiled: February 23, 2018Date of Patent: October 4, 2022Assignee: Schlage Lock Company LLCInventors: Paul R. Arlinghaus, Jack R. Lehner, Jr., Matthew A. Phillips, Suresha Chandrasekhara, Mohammed M. Ali, Evan Ballard
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Publication number: 20220275666Abstract: An exemplary electronic actuator assembly is configured for use with a pushbar assembly having a drive assembly operable to retract a latchbolt, and includes an input shaft, a motor, and a boost spring. The motor has a retracting state in which the motor drives the input shaft from a proximal position to a distal position, a holding state in which the motor exerts a holding force to retain the input shaft in the distal position, and a releasing state in which the motor exerts a residual force that resists movement of the input shaft. The boost spring exerts a boost force urging the input shaft in the proximal direction to at least partially counteract the residual force.Type: ApplicationFiled: May 17, 2022Publication date: September 1, 2022Inventors: Paul R. Arlinghaus, Evan Ballard, Suresha Chandrasekhara, Eric Hoiland
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Patent number: 11332961Abstract: An exemplary electronic actuator assembly is configured for use with a pushbar assembly having a drive assembly operable to retract a latchbolt, and includes an input shaft, a motor, and a boost spring. The motor has a retracting state in which the motor drives the input shaft from a proximal position to a distal position, a holding state in which the motor exerts a holding force to retain the input shaft in the distal position, and a releasing state in which the motor exerts a residual force that resists movement of the input shaft. The boost spring exerts a boost force urging the input shaft in the proximal direction to at least partially counteract the residual force.Type: GrantFiled: February 6, 2019Date of Patent: May 17, 2022Assignee: Schlage Lock Company LLCInventors: Paul R. Arlinghaus, Evan Ballard, Suresha Chandrasekhara, Eric Hoiland
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Patent number: 11274470Abstract: An exemplary trim assembly comprises a housing assembly, a cam rotatably mounted to the housing assembly, a lift finger slidably mounted in the housing assembly such that the cam is operable to linearly drive the lift finger between a deactuated position and an actuated position, and a locking mechanism operable to selectively retain the lift finger in the deactuated position. The locking mechanism includes an interface member engaged with the lift finger such that movement of the lift finger moves the interface member between a home position and an offset position, a blocking member operable to selectively prevent movement of the interface member from the home position, and a driver configured to move the blocking member between a blocking position and an unblocking position to thereby lock and unlock the trim assembly.Type: GrantFiled: February 1, 2019Date of Patent: March 15, 2022Assignee: Schlage Lock Company LLCInventors: Paul R. Arlinghaus, Jack R. Lehner, Jr., David V. Toloday, Suresha Chandrasekhara, John Stalter, Marlin Austin
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Patent number: 11255109Abstract: An exit device according to one embodiment includes a plurality of sensors and an electronic dogging mechanism. The exit device is configured to locally analyze sensor data to determine the security state of the exit device, report data to a management system via a wireless communication channel established between the exit device and the management system, and receive and process instructions to perform an electronic dogging operation.Type: GrantFiled: February 23, 2018Date of Patent: February 22, 2022Assignee: Schlage Lock Company LLCInventors: Yong K. Lacy, Paul R. Arlinghaus, Dan Pfunder, Mohammed M. Ali, Suresha Chandrasekhara, Vijayakumar Mani
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Publication number: 20200248484Abstract: An exemplary electronic actuator assembly is configured for use with a pushbar assembly having a drive assembly operable to retract a latchbolt, and includes an input shaft, a motor, and a boost spring. The motor has a retracting state in which the motor drives the input shaft from a proximal position to a distal position, a holding state in which the motor exerts a holding force to retain the input shaft in the distal position, and a releasing state in which the motor exerts a residual force that resists movement of the input shaft. The boost spring exerts a boost force urging the input shaft in the proximal direction to at least partially counteract the residual force.Type: ApplicationFiled: February 6, 2019Publication date: August 6, 2020Inventors: Paul R. Arlinghaus, Evan Ballard, Suresha Chandrasekhara, Eric Hoiland
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Publication number: 20200248480Abstract: An exemplary trim assembly comprises a housing assembly, a cam rotatably mounted to the housing assembly, a lift finger slidably mounted in the housing assembly such that the cam is operable to linearly drive the lift finger between a deactuated position and an actuated position, and a locking mechanism operable to selectively retain the lift finger in the deactuated position. The locking mechanism includes an interface member engaged with the lift finger such that movement of the lift finger moves the interface member between a home position and an offset position, a blocking member operable to selectively prevent movement of the interface member from the home position, and a driver configured to move the blocking member between a blocking position and an unblocking position to thereby lock and unlock the trim assembly.Type: ApplicationFiled: February 1, 2019Publication date: August 6, 2020Inventors: Paul R. Arlinghaus, Jack R. Lehner, JR., David V. Toloday, Suresha Chandrasekhara, John Stalter, Marlin Austin
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Publication number: 20180245374Abstract: An exit device according to one embodiment includes a plurality of sensors and an electronic dogging mechanism. The exit device is configured to locally analyze sensor data to determine the security state of the exit device, report data to a management system via a wireless communication channel established between the exit device and the management system, and receive and process instructions to perform an electronic dogging operation.Type: ApplicationFiled: February 23, 2018Publication date: August 30, 2018Inventors: Paul R. Arlinghaus, Jack R. Lehner, JR., Matthew A. Phillips, Suresha Chandrasekhara, Mohammed M. Ali, Evan Ballard
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Publication number: 20180245373Abstract: An exit device according to one embodiment includes a plurality of sensors and an electronic dogging mechanism. The exit device is configured to locally analyze sensor data to determine the security state of the exit device, report data to a management system via a wireless communication channel established between the exit device and the management system, and receive and process instructions to perform an electronic dogging operation.Type: ApplicationFiled: February 23, 2018Publication date: August 30, 2018Inventors: Yong K. Lacy, Paul R. Arlinghaus, Dan Pfunder, Mohammed M. Ali, Suresha Chandrasekhara, Vijayakumar Mani