Patents by Inventor Alan Bidwell

Alan Bidwell 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).

  • Manually propelled wheelchair device
    Patent number: 7959176
    Abstract: A conveyance has a plurality of wheels and, at least, first and second drive axles, which are mounted, or disposed, between the wheels. One of the wheels defines a first wheel that is rotatably mounted to one end of the first drive axle. A second of the wheels is rotatably mounted to one end of the second drive axle. The conveyance further includes a first actuation device for the first drive axle, on the opposite end of the first drive axle from the first wheel and proximate to the second wheel, and a second actuation device for the second drive axle on the opposite end of the second drive axle from the second wheel and proximate the first wheel. The first actuation device is selectively operated to apply a selective relative rotation to the first wheel and the second actuation device is selectively operated to apply a selective relative rotation to the second wheel.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: June 14, 2011
    Inventors: Alan Bidwell, Adrian Bidwell
  • Manually Propelled Wheelchair Device
    Publication number: 20090039612
    Abstract: A conveyance has a plurality of wheels and, at least, first and second drive axles, which are mounted, or disposed, between the wheels. One of the wheels defines a first wheel that is rotatably mounted to one end of the first drive axle. A second of the wheels is rotatably mounted to one end of the second drive axle. The conveyance further includes a first actuation device for the first drive axle, on the opposite end of the first drive axle from the first wheel and proximate to the second wheel, and a second actuation device for the second drive axle on the opposite end of the second drive axle from the second wheel and proximate the first wheel. The first actuation device is selectively operated to apply a selective relative rotation to the first wheel and the second actuation device is selectively operated to apply a selective relative rotation to the second wheel.
    Type: Application
    Filed: February 13, 2006
    Publication date: February 12, 2009
    Inventors: Alan Bidwell, Adrian Bidwell
  • Compliant Sealing Materials and Methods For Sealing Nozzles For A Micro-Fluid Ejection Head
    Publication number: 20080303855
    Abstract: A compliant sealing structure suitable for sealing a micro-fluid ejection head, methods of sealing a micro-fluid ejection head, ejection heads sealed by the method and structure. The sealing structure includes an elastomeric pad suitable for sealing nozzles of the micro-fluid ejection head. A removable shrink wrap film is applied to the ejection bead and is configured for covering at least a portion of the elastomeric pad and for fixedly holding the elastomeric pad adjacent the nozzles.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Inventors: Alan Bidwell, Girish Shivaji Patil, Tu Phan, Kirk Lawrence Stechschulte