Patent ID: 7303180

Claim:
A valve actuator comprising: a body having at least first and second sides and an interior; a rotatable, threaded drive screw extending into said body and projecting out of said body first side and out of said body second side, said drive screw having at least an insertion portion and a distal end portion; a traveling nut threadingly captured on said drive screw in said body interior, said traveling nut held against rotation whereby said traveling nut travels along said drive screw as said drive screw rotates; an actuator arm engaging said nut and configured to be urged between valve open and closed positions as said nut travels along said drive screw; a first collar attached to at least a portion of said drive screw insertion portion, said first collar having at least a bearing for rotatably engaging said body; and, a second collar attached to at least a portion of said drive screw distal end portion, said second collar having at least a bearing for rotatably engaging said body.