1
Dean L Kamen, Robert R Ambrogi, Robert J Duggan, Richard Kurt Heinzmann, Brian R Key, Andrzej Skoskiewicz, Phyllis K Kristal: Transportation vehicles and methods. DEKA Products Partnership, Bromberg & Sunstein, October 26, 1999: US05971091 (175 worldwide citation)

There is provided, in a preferred embodiment, a transportation vehicle for transporting an individual over ground having a surface that may be irregular. This embodiment has a support for supporting the subject. A ground-contacting module, movably attached to the support, serves to suspend the subje ...


2
Dean L Kamen, Robert R Ambrogi, Robert J Duggan, Richard K Heinzmann, Brian R Key, Andrzej Skoskiewicz, Phyllis K Kristal: Human transporter. Deka Products Partnership, Bromberg & Sunstein, December 30, 1997: US05701965 (122 worldwide citation)

There is provided, in a preferred embodiment, a device for transporting a human subject over ground having a surface that may be irregular and may include stairs. This embodiment has a support for supporting the subject. A ground-contacting module, movably attached to the support, serves to suspend ...


3
Dean L Kamen, Robert R Ambrogi, Robert J Duggan, Richard K Heinzmann, Brian R Key, Susan D Dastous: Control loop for transportation vehicles. Deka Products Partnership, Bromberg & Sunstein, August 11, 1998: US05791425 (112 worldwide citation)

There is provided, in a preferred embodiment, a transportation vehicle for transporting an individual over ground having a surface that may be irregular. This embodiment has a support for supporting the subject. A ground-contacting module, movably attached to the support, serves to suspend the subje ...


4
John B Morrell, John M Kerwin, Dean L Kamen, Robert R Ambrogi, Robert J Duggan, Richard K Heinzmann, Brian R Key: System and method for stair climbing in a cluster-wheel vehicle. Deka Products Partneship, Bromberg & Sunstein, November 6, 2001: US06311794 (23 worldwide citation)

A system and method for operating a device in ascending or descending stairs. The device has a plurality of wheels rotatable about axes that are fixed with respect to a cluster arm, where the cluster arm itself is rotated about an axis so that wheels rest on successive stairs. The wheels and cluster ...