Patents by Inventor Spencer L. Maholmes

Spencer L. Maholmes 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).

  • Abdominal twist exercise device
    Patent number: 10265574
    Abstract: An abdominal twist exercise device includes a device frame, front and rear rotational axles, a main handle bar, a rotation converter, an adjustable gear, a disengaging lever, a weight, a weight bar, a support rail, a safety handle bar, rotation counters, and a user platform, such that when the main handle bar rotates to one side, the user platform rotates to an opposing side. A rotation converter can include a front chain sprocket, an intermediate rotational axle, an intermediate chain sprocket, a roller chain, an intermediate gear, a rear gear; or a front belt sprocket, a rear belt sprocket, and a twisted belt, connecting the sprockets. Optionally, the front and rear axles can be telescoping.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: April 23, 2019
    Inventor: Spencer L. Maholmes
  • Abdominal twist exercise device
    Publication number: 20170173384
    Abstract: An abdominal twist exercise device includes a device frame, front and rear rotational axles, a main handle bar, a rotation converter, an adjustable gear, a disengaging lever, a weight, a weight bar, a support rail, a safety handle bar, rotation counters, and a user platform, such that when the main handle bar rotates to one side, the user platform rotates to an opposing side. A rotation converter can include a front chain sprocket, an intermediate rotational axle, an intermediate chain sprocket, a roller chain, an intermediate gear, a rear gear; or a front belt sprocket, a rear belt sprocket, and a twisted belt, connecting the sprockets. Optionally, the front and rear axles can be telescoping.
    Type: Application
    Filed: March 3, 2017
    Publication date: June 22, 2017
    Inventor: Spencer L. Maholmes
  • Abdominal twist exercise device
    Patent number: 9597546
    Abstract: An abdominal twist exercise device includes a device frame, front and rear rotational axles, a main handle bar, a rotation converter, an adjustable gear, a disengaging lever, a weight, a weight bar, a support rail, a safety handle bar, rotation counters, and a user platform, such that when the main handle bar rotates to one side, the user platform rotates to an opposing side. A rotation converter can include a front chain sprocket, an intermediate rotational axle, an intermediate chain sprocket, a roller chain, an intermediate gear, a rear gear; or a front belt sprocket, a rear belt sprocket, and a twisted belt, connecting the sprockets. Optionally, the front and rear axles can be telescoping.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 21, 2017
    Inventor: Spencer L. Maholmes
  • Abdominal twist exercise device
    Publication number: 20160016038
    Abstract: An abdominal twist exercise device includes a device frame, front and rear rotational axles, a main handle bar, a rotation converter, an adjustable gear, a disengaging lever, a weight, a weight bar, a support rail, a safety handle bar, rotation counters, and a user platform, such that when the main handle bar rotates to one side, the user platform rotates to an opposing side. A rotation converter can include a front chain sprocket, an intermediate rotational axle, an intermediate chain sprocket, a roller chain, an intermediate gear, a rear gear; or a front belt sprocket, a rear belt sprocket, and a twisted belt, connecting the sprockets. Optionally, the front and rear axles can be telescoping.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 21, 2016
    Inventor: Spencer L. Maholmes