1
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 (24 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 ...


2
Morrell John B, Kerwin John M: System and method for stair climbing in a cluster-wheel vehicle. Deka Products Partnership, January 1, 2002: TW470641 (1 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 ...


3
Kamen Dean L, Ambrogi Robert, Duggan Robert J, Heinzmann Richard K, Key Brian R, Morrell John B, Kerwin John M: Systeme et procede permettant a un vehicule dote dun groupe de roues de monter des escaliers, System and method for stair climbing in a cluster-wheel vehicle. Deka Products Partnership, Deka Products Partnership, Gowling Lafleur Henderson, December 8, 2009: CA2367146

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


4
Morrell John B, Kerwin John M, Kamen Dean L, Ambrogi Robert, Duggan Robert J, Heinzmann Richard Kurt, Key Brian R: System and method for stair climbing in a cluster-wheel vehicle. Deka Products Partnership, SUNSTEIN Bruce D, September 21, 2000: WO/2000/054720

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 ...


5
Morrell John B, Kerwin John M, Kamen Dean L, Ambrogi Robert, Duggan Robert J, Heinzmann Richard K, Key Brian R: System and method for stair climbing in a cluster-wheel vehicle. Deka Products, December 12, 2001: EP1161215-A1

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 ...


6
Morrell John B, Kerwin John M, Heinzmann Richard Kurt, Key Brian R, Ambrogi Robert, Duggan Robert J, Kamen Dean L: System and method for stair climbing in a cluster-wheel vehicle. Deka Products Partnership, January 5, 2002: KR1020017011663

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 ...


7

8
KAMEN DEAN L, AMBROGI ROBERT, DUGGAN ROBERT J, HEINZMANN RICHARD K, KEY BRIAN R, MORRELL JOHN B, KERWIN JOHN M: SYSTEME ET PROCEDE PERMETTANT A UN VEHICULE DOTE DUN GROUPE DE ROUES DE MONTER DES ESCALIERS, SYSTEM AND METHOD FOR STAIR CLIMBING IN A CLUSTER-WHEEL VEHICLE. DEKA PRODUCTS PARTNERSHIP, DEKA PRODUCTS PARTNERSHIP, GOWLING LAFLEUR HENDERSON, July 30, 2013: CA2682811

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 ...