An Apple patent (number 8213177) for a device foot has appeared at the U.S. Patent & Trademark Office. A moveable device foot for an electronic device is described, such as that on the Magic Trackpad and Apple keyboard.

The device foot can include a rigid weight bearing member and a flexible sealing member that is integrally formed with the weight bearing member. The device foot can be formed using a double-shot injection molding process. The weight bearing member of the foot can be mounted to an interior portion of the electronic device such that it extends through an external casing of the electronic device.

The flexible sealing member can be mounted to the external casing to seal the interior of the electronic device. During operation of the electronic device, the device foot can be configured to move relative to the external casing, such as in response to an external force applied to the electronic device.

Here's Apple's summary of the invention: "Broadly speaking, the embodiments disclosed herein describe a moveable device foot well suited for use in a consumer electronic device, such as a device including a touch-based interface. In particular, a moveable device foot for an electronic device is described.

"When the electronic device is placed on a surface, the moveable device foot can be used to support a portion of the weight of the electronic device. In addition, in response to a touch-based input, the moveable device foot can be configured to contribute to a range of movement associated with the touch-based interface.

In particular embodiments, the moveable device foot can include a rigid weight bearing member and a flexible sealing member or a cosmetic member that are integrally formed. The weight bearing member of the foot can be mounted to an interior portion of the electronic device such that it extends through an external casing of the electronic device. When a flexible sealing member is used, it can be mounted to the external casing to seal the interior of the electronic device.

"During operation of the electronic device, the device foot can be configured to move relative to the external casing, such as when an external force is applied to the electronic device. The external force can result from a user interaction with the electronic device, such as during a touch-based input process.

"When the electronic device rests on a surface, such as a desk, an internal mechanism, coupled to the device foot, can be configured to hold the device foot in a position where it extends a maximum distance through the external casing. In one embodiment, the internal mechanism can be part of a switch. The internal mechanism can be configured to support a portion of the weight of the electronic device where the portion of the weight that is supported by the internal mechanism is transmitted through the device foot.

"In response to an external force of sufficient magnitude being applied to the electronic device, such as a user pressing down on top of the electronic device to provide a touch input, the device foot can be configured to recede into the external casing, which allows the external casing to move towards the surface. When the external force is removed, the internal mechanism can return the foot to its original extended position and the external casing can move away from the surface.

"In one embodiment, the device foot can be formed using a double-shot injection molding process. In the first shot, the rigid weight bearing member, including an interior hollow portion, can be formed. During the second shot, the flexible sealing member can be formed. To anchor the flexible sealing member of the foot to the rigid weight bearing member, a portion of the flexible sealing member can be extruded into the hollow interior portion of the rigid weight bearing member during the second shot.

"The materials used for the flexible sealing member can be selected so that the flexible member and the rigid member do not bond together during the injection molding process and can easily separate from one another when the two components are pulled apart."

The inventors are Erik A. Uttermann, Rico Zorkendorfer and Andrew Lauder.

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