Patents by Inventor José Freitas Silva

José Freitas Silva 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).

  • Cargo cart for wheeled mobility device
    Patent number: 7871088
    Abstract: Cargo cart 10 can be used independently or attached to a conventional walker 101. Cooperative attach means 40 connect cart 10 in front of walker 101 through roll leader 44, which propels and steers cart 10 in response to user's control of walker 101. In attached mode, rear wheels 34 of cart 10 are suspended above travel surface to allow cart 10 to be steered easily and predictably by roll leader 44. Cart 10 is attached and detached with one hand without tools. Handle 50 and optional cargo basket 29 fold flat for storage. Slots in peripheral rails 24 retain cargo that is wider than cargo support 28.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: January 18, 2011
    Inventors: José Freitas Silva, Angus R. Colson, Jr., Hugh Williams, Gavin K. Wong, Keith W. Reynolds
  • Cargo cart for wheeled mobility device
    Publication number: 20090152827
    Abstract: Cargo cart 10 can be used independently or attached to a conventional walker 101. Cooperative attach means 40 connect cart 10 in front of walker 101 through roll leader 44, which propels and steers cart 10 in response to user's control of walker 101. In attached mode, rear wheels 34 of cart 10 are suspended above travel surface to allow cart 10 to be steered easily and predictably by roll leader 44. Cart 10 is attached and detached with one hand without tools. Handle 50 and optional cargo basket 29 fold flat for storage. Slots in peripheral rails 24 retain cargo that is wider than cargo support 28.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 18, 2009
    Inventors: Jose Freitas Silva, Angus R. Colson, JR., Hugh Williams, Gavin K. Wong, Keith W. Reynolds
  • Cargo cart with hitch for wheeled mobility device
    Publication number: 20090152826
    Abstract: Cargo cart 10 has front castors 32 and rear wheels 34 and can be used independently or attached to a conventional walker 101. Cart 100 includes a hitch 500 adjustable in height for selectively connecting cart 10 in front of walker 101 with rear wheels 34 off the ground such that walker 101 propels and steers cart 10 in response to user's control of walker 101.
    Type: Application
    Filed: November 10, 2008
    Publication date: June 18, 2009
    Inventors: Jose Freitas Silva, Angus R. Colson, JR., Hugh Williams, Gavin K. Wong