Integrated cam shaft assembly
AssigneeMedela Holding AG
InventorJoseph Wach
Life of this patent
Estimating the term…
Abstract
A cam shaft assembly including a shaft defining a shaft longitudinal axis. The cam shaft assembly further including a gear attached to and extending radially about the shaft. The cam shaft assembly further including a cam attached to the shaft. The cam and the shaft are formed of a single contiguous piece of material. In an embodiment, the gear, the cam and the shaft may all be formed of a single contiguous piece of material. In another embodiment the cam and the shaft are formed of a first material and the gear is formed of a second material.
Claims20
A cam shaft assembly comprising:
- a shaft defining a shaft longitudinal axis;
- a gear attached to and extending radially about the shaft;
- and
- a cam attached to the shaft, the cam and the shaft being formed of a single contiguous piece of material.
A cam shaft assembly comprising:
- a shaft defining a shaft longitudinal axis;
- a cam attached to the shaft;
- and
- a gear attached to and extending radially about the shaft;
- the gear and the shaft being formed of a single contiguous piece of material.
A cam shaft assembly comprising:
- a shaft defining a shaft longitudinal axis, the shaft having an inner surface;
- a gear attached to and extending radially about the shaft;
- a cam attached to the shaft, the cam, the gear and the shaft all being formed of a single contiguous piece of material;
- and
- a housing, the shaft extending into the housing, the housing being sized and configured to support the shaft with respect to movement orthogonal to the shaft longitudinal axis without any bushing between the housing and the shaft, the housing having:
- an housing inner cavity having an housing inner surface disposed concentrically about the shaft longitudinal axis, the housing inner surface being disposed in slidable contact with the shaft upon rotation of the shaft about the shaft longitudinal axis;
- and
- a shaft guide, the shaft inner surface being disposed concentrically about the shaft guide and the shaft longitudinal axis, the shaft guide being disposed in slidable contact with the shaft inner surface upon rotation of the shaft about the shaft longitudinal axis.
Dependencies are inferred from the claim text.