Patent ID: 7334804

Claim:
A portable tire and wheel lifting apparatus comprising: a base having opposed side members; a pair of lifting arms pivotally coupled to one another and arranged in a scissor configuration for relative up and down movement, each said lifting arm having a first end and a second opposed end; a pair of air cylinders pivotally coupled to respective side members of said base, each air cylinder receiving a corresponding first end of a respective lifting arm for relative movement of said respective lifting arm between retracted and extended configurations; means for selectively imparting a stream of air to said pair of air cylinders for moving said lifting arms from said retracted to said extended configuration; means for selectively releasing air from said pair of air cylinders for moving said lifting arms from said extended configuration to said retracted configuration; wherein said second ends of said lifting arms are configured to support a tire and wheel thereon; a pair of rollers rotatably mounted to respective said second ends of said lifting arms for supporting said tire and wheel atop said rollers and in direct contact therewith for allowing said tire and wheel to rotate thereon; and a pair of ramp members mounted to respective side members of said base and situated in direct contact upon said base, said pair of ramp members having a configuration for allowing a tire to be rolled smoothly between a ground surface and said second ends of said lifting arms.