Patents by Inventor Mary Louise Churchill

Mary Louise Churchill 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).

  • Patent number: 8696396
    Abstract: A water sport training device is disclosed comprising, in one embodiment, a raft having a distal nose portion and a proximal rear portion. The rear portion provides a pair of substantially spaced apart lateral pontoons and a first web spanning the space therebetween. A relatively rigid platform is positionable within the raft, substantially adjacent the first web. A buoyant seat portion is positioned substantially on a back half of the device between the pontoons and adjacent the platform. A tow rope attachment means is secured to the raft for selectively towing the device over a body of water. The device is configured such that a back half of the device has a center buoyancy sufficient for providing a stable surface to support the weight of a person while floating on water both at standstill and as being pulled through the water as by a boat.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: April 15, 2014
    Inventors: Robert Lee Churchill, Mary Louise Churchill
  • Patent number: 8025541
    Abstract: A water sport training device is disclosed comprising, in one embodiment, a raft having a distal nose portion and a proximal rear portion. A relatively rigid platform is positioned within the raft and configured to provide a stable surface for the person during use of the device. A tow rope attachment means is secured to the raft for selectively towing the device over a body of water, the attachment means comprising at least one tow rope attachment point located on the nose portion of the raft, below a nose portion mid-plane. The device is configured such that a back half of the device has a center buoyancy sufficient for providing a stable surface to support the weight of a person while floating on water both at standstill and as being pulled through the water as by a boat.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: September 27, 2011
    Inventors: Robert Lee Churchill, Mary Louise Churchill
  • Publication number: 20100105263
    Abstract: A water sport training device is disclosed comprising, in one embodiment, a raft having a distal nose portion and a proximal rear portion. A relatively rigid platform is positioned within the raft and configured to provide a stable surface for the person during use of the device. A tow rope attachment means is secured to the raft for selectively towing the device over a body of water, the attachment means comprising at least one tow rope attachment point located on the nose portion of the raft, below a nose portion mid-plane. The device is configured such that a back half of the device has a center buoyancy sufficient for providing a stable surface to support the weight of a person while floating on water both at standstill and as being pulled through the water as by a boat.
    Type: Application
    Filed: January 16, 2009
    Publication date: April 29, 2010
    Inventors: Mary Louise Churchill, Robert Lee Churchill
  • Patent number: D621897
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: August 17, 2010
    Inventors: Robert Lee Churchill, Mary Louise Churchill
  • Patent number: RE47021
    Abstract: A water sport training device is disclosed comprising, in one embodiment, a raft having a distal nose portion and a proximal rear portion. The rear portion provides a pair of substantially spaced apart lateral pontoons and a first web spanning the space therebetween. A relatively rigid platform is positionable within the raft, substantially adjacent the first web. A buoyant seat portion is positioned substantially on a back half of the device between the pontoons and adjacent the platform. A tow rope attachment means is secured to the raft for selectively towing the device over a body of water. The device is configured such that a back half of the device has a center buoyancy sufficient for providing a stable surface to support the weight of a person while floating on water both at standstill and as being pulled through the water as by a boat.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: September 4, 2018
    Inventor: Mary Louise Churchill