Patent ID: 7730635

Claim:
A device comprising: a first body portion; a second body portion, wherein the first body portion and the second body portion, at least in part, define a base orientation of the device and wherein an open space is defined between the first body portion and the second body portion; and a first spring member extending across the open space and engaging the first body portion and the second body portion, wherein when a force is applied to at least one of the first body portion or the second body portion so as to change the device out of the base orientation, the first spring member exerts a force that urges the device toward the base orientation, wherein the first spring member includes a polymeric element that stretches under a tensile force when the force is applied to at least one of the first body portion or the second body portion, wherein the first body portion is at least substantially contained within the first spring member and wherein the second body portion is at least substantially contained within the first spring member.