Patent 7352515 was granted and assigned to Raytheon on April, 2008 by the United States Patent and Trademark Office.
A linear mechanical drive has an outer housing, a drive sleeve that is conformably and slidably received within the outer housing, a mount sleeve conformably and slidably received within the drive sleeve, and a guide extending between the outer housing and the mount sleeve to prevent the mount sleeve from rotating relative to the outer housing. A linearly driven structure is affixed to the mount sleeve. There is a first helical engagement between the outer housing and the drive sleeve, and a second helical engagement between the mount sleeve and the drive sleeve. A motor is positioned to actuate the drive sleeve engagement.