Patent ID: 7752876

Claim:
A lockout device comprising: an inner housing having an upper end portion, a lower end portion, an arcuate outer portion extending between the upper and lower end portions, a first central bearing portion extending outward from the upper end portion, and a second central bearing portion extending outward from the lower end portion, the second central bearing portion at least partially surrounding a central opening in the lower end portion; and an outer housing having an upper end portion, a lower end portion, an arcuate outer portion extending between the upper and lower end portions, a first central opening disposed on the upper end portion and sized to receive and bear against the first central bearing portion of the inner housing, and a second central opening disposed on the lower end portion and sized to receive and bear against the second central bearing portion of the inner housing; wherein the inner housing further comprises one of an arcuate rail and an arcuate track extending from an outer surface of the arcuate outer portion between the first and second central bearing portions, and the outer housing further comprises the other of the arcuate rail and arcuate track extending from an inner surface of the arcuate outer portion between the first and second central openings, further wherein the rail slides along the track to provide telescopic and rotational movement of the inner housing with respect to the outer housing.