Patent ID: 7540259

Claim:
A pet bed, comprising: a plurality of scissor bar sets, each of the scissor bar sets including two crossed bars pivotally connected where the two bars cross, wherein upper ends of bars in adjacent scissor bar sets are pivotally connected and lower ends of bars in adjacent scissor bar sets are pivotally connected so that the plurality of scissor bar sets form a closed loop that defines a frame, the frame being foldable from a storage position in which the upper ends of the bars in the plurality of scissor bar sets are positioned adjacent to each other to an extended position in which the upper ends are spread apart and the upper ends are closer to the lower ends of the bars in the plurality of scissor bar sets than when the frame is in the storage position and the angle formed between the upper ends in each of the plurality of scissor bar sets is greater than 90 degrees when the frame is in the extended position; at least one unitary structure on the frame configured and arranged in a vertical orientation relative to a surface upon which the pet bed may rest to prevent the upper ends from moving to adjacent to the lower ends when the frame is in the extended state; and a cover suspended from the upper ends.