Patent ID: 11873063
Assignee: PROTOMET CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. The device of claim 1, wherein the housing further comprises a third prong, the foot being a first foot, the device further comprising:
a third linkage and a fourth linkage pivotably coupled to the second prong; and
a second foot pivotably coupled to the third linkage and the fourth linkage,
wherein the one or more linkage members are coupled to the third linkage, wherein the one or more linkage members are movable relative to the housing to cause rotation of the third linkage and the fourth linkage and to cause the second foot to move between a retracted position and an extended position, wherein the second foot is closer to the third prong in the extended position than it is in the retracted position.