Resilient tires and wheels – Spring wheels – Deformable ground engaging part
Reexamination Certificate
2006-08-29
2006-08-29
Bellinger, Jason R. (Department: 3617)
Resilient tires and wheels
Spring wheels
Deformable ground engaging part
C301S064701, C301S005304
Reexamination Certificate
active
07096902
ABSTRACT:
A vacuum cleaner includes a housing and at least one running roller operatively connected to the housing. The roller has a hub, a running ring, a wall connecting the running ring and the hub. The wall has two side surfaces and a curved cross-section between the running ring and the hub. The roller has at least one reinforcing rib extending at least from one of the two side surfaces of the wall and being in contact with neither the hub nor the running ring in a non-loaded state of the running roller. The roller forms an elastic caster with a nave and a bearing race. The nave and the bearing race are connected to another by an S or Z-shaped curved wall. Ribs are provided for reinforcing the wall or the nave.
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Bott Erich
Illig Roland
Komesker Heinrich
Bellinger Jason R.
BSH Bosch und Siemens Haus-geraete GmbH
Loest Craig J.
Wamock Russell W.
Winburn John T.
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