Patents by Inventor Derek L. Nelson
Derek L. Nelson 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: 8974353Abstract: The present invention relates to a stair exercise device for simulating stair climbing, the device having a plurality of steps which are activated by the weight of a person walking up them. A stationary platform at the base of the stair exercise device sends a signal to a controller to bring the exercise device to a controlled stop when an operator steps onto the platform. The steps of the exercise device stop in a predetermined location when the exercise device comes to a controlled stop, ensuring proper step location to allow the operator to easily enter and exit the exercise device. Steps have a step platform of a different color than the risers between steps to aid in foot placement.Type: GrantFiled: March 7, 2014Date of Patent: March 10, 2015Assignee: Johnson Health Tech Co., Ltd.Inventors: Mrako A Fenster, Derek L Nelson, Chih-Ming Lai, Kung-Lung Lai, Chieh-Wen Lin, Ming-Hsin Chi, Chinh-Kuo Huang, Yung-Fa Wang
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Publication number: 20140187387Abstract: The present invention relates to a stair exercise device for simulating stair climbing, the device having a plurality of steps which are activated by the weight of a person walking up them. A stationary platform at the base of the stair exercise device sends a signal to a controller to bring the exercise device to a controlled stop when an operator steps onto the platform. The steps of the exercise device stop in a predetermined location when the exercise device comes to a controlled stop, ensuring proper step location to allow the operator to easily enter and exit the exercise device. Steps have a step platform of a different color than the risers between steps to aid in foot placement.Type: ApplicationFiled: March 7, 2014Publication date: July 3, 2014Applicant: JOHNSON HEALTH TECH CO., LTD.Inventors: Mrako A. Fenster, Derek L. Nelson, Chih-Ming Lai, Kung-Lung Lai, Chieh-Wen Lin, Ming-Hsin Chi, Chinh-Kuo Huang, Yung-Fa Wang
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Patent number: 8702571Abstract: The present invention relates to a stair exercise device for simulating stair climbing, the device having a plurality of steps which are activated by the weight of a person walking up them. A stationary platform at the base of the stair exercise device sends a signal to a controller to bring the exercise device to a controlled stop when an operator steps onto the platform. The steps of the exercise device stop in a predetermined location when the exercise device comes to a controlled stop, ensuring proper step location to allow the operator to easily enter and exit the exercise device. Steps have a step platform of a different color than the risers between steps to aid in foot placement.Type: GrantFiled: April 13, 2011Date of Patent: April 22, 2014Assignee: Johnson Health Tech Co., Ltd.Inventors: Mrako A. Fenster, Derek L. Nelson, Chih-Ming Lai, Kung-Lung Lai, Chieh-Wen Lin, Ming-Hsin Chi, Chinh-Kuo Huang, Yung-Fa Wang
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Publication number: 20120264572Abstract: The present invention relates to a stair exercise device for simulating stair climbing, the device having a plurality of steps which are activated by the weight of a person walking up them. A stationary platform at the base of the stair exercise device sends a signal to a controller to bring the exercise device to a controlled stop when an operator steps onto the platform. The steps of the exercise device stop in a predetermined location when the exercise device comes to a controlled stop, ensuring proper step location to allow the operator to easily enter and exit the exercise device. Steps have a step platform of a different color than the risers between steps to aid in foot placement.Type: ApplicationFiled: April 13, 2011Publication date: October 18, 2012Inventors: Mrako A. Fenster, Derek L. Nelson, Chih-Ming Lai, Kung-Lung Lai, Chieh-Wen Lin, Ming-Hsin Chi, Chinh-Kuo Huang, Yung-Fa Wang
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Patent number: 8062186Abstract: An exercise machine includes a pair of support members having front ends connected to a crank unit for turning along with the crank unit and rear ends moving along a reciprocating path due to the guidance of a pair of guide members. A pair of foot members are each mounted on the respective support member. Each foot member moves through a substantially elliptical path, and each foot member at least partially overhangs the other foot member during at least a portion of travel along the substantially elliptical path.Type: GrantFiled: June 12, 2009Date of Patent: November 22, 2011Assignee: Johnson Health Tech Co., Ltd.Inventors: Derek L. Nelson, Clinton S. Myers, Daniel D. Budworth
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Publication number: 20100317492Abstract: An exercise machine includes a pair of support members having front ends connected to a crank unit for turning along with the crank unit and rear ends moving along a reciprocating path due to the guidance of a pair of guide members. A pair of foot members are each mounted on the respective support member. Each foot member moves through a substantially elliptical path, and each foot member at least partially overhangs the other foot member during at least a portion of travel along the substantially elliptical path.Type: ApplicationFiled: June 12, 2009Publication date: December 16, 2010Inventors: Derek L. Nelson, Clinton S. Myers, Daniel D. Budworth
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Publication number: 20090093346Abstract: An elliptical exercise apparatus. The exercise apparatus generally includes a frame, a pair of cranks pivotally connected to the frame and configured to rotate about a common axis, first and second reciprocating members, first and second support members, and first and second foot engaging members. The first end portion of each of the first and second reciprocating members may be pivotally coupled to the frame. The first portion of each of the first and second support members may be pivotally coupled to the corresponding crank, and the second portion of each of the first and second support members may be pivotally coupled to the second end portion of the corresponding reciprocating member. Each foot engaging member is coupled to a corresponding support member and may generally move through a closed path. Handle members may be coupled to the support members and may generally move through a closed path.Type: ApplicationFiled: November 30, 2007Publication date: April 9, 2009Applicant: JOHNSON HEALTH TECH CO., LTD.Inventors: Derek L. Nelson, Travis J. Blackburn, Daniel D. Budworth
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Patent number: RE47331Abstract: The present invention relates to a stair exercise device for simulating stair climbing, the device having a plurality of steps which are activated by the weight of a person walking up them. A stationary platform at the base of the stair exercise device sends a signal to a controller to bring the exercise device to a controlled stop when an operator steps onto the platform. The steps of the exercise device stop in a predetermined location when the exercise device comes to a controlled stop, ensuring proper step location to allow the operator to easily enter and exit the exercise device. Steps have a step platform of a different color than the risers between steps to aid in foot placement.Type: GrantFiled: March 6, 2017Date of Patent: April 2, 2019Assignee: Johnson Health Tech Co., Ltd.Inventors: Mrako A. Fenster, Derek L. Nelson, Chih-Ming Lai, Kung-Lung Lai, Chieh-Wen Lin, Ming-Hsin Chi, Chinh-Kuo Huang, Yung-Fa Wang
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Patent number: RE48306Abstract: The present invention relates to a stair exercise device for simulating stair climbing, the device having a plurality of steps which are activated by the weight of a person walking up them. A stationary platform at the base of the stair exercise device sends a signal to a controller to bring the exercise device to a controlled stop when an operator steps onto the platform. The steps of the exercise device stop in a predetermined location when the exercise device comes to a controlled stop, ensuring proper step location to allow the operator to easily enter and exit the exercise device. Steps have a step platform of a different color than the risers between steps to aid in foot placement.Type: GrantFiled: January 24, 2019Date of Patent: November 17, 2020Assignee: Johnson Health Tech Co., Ltd.Inventors: Mrako A. Fenster, Derek L. Nelson, Chih-Ming Lai, Kung-Lung Lai, Chieh-Wen Lin, Ming-Hsin Chi, Chinh-Kuo Huang, Yung-Fa Wang