Abstract: A remotely controlled vehicle for traversing various terrains to accomplish missions in a hostile environment. This vehicle is sufficiently small so as to permit introduction into the environment through a manway, and is designed so that it can be operated while submersed. It has a main chassis with rotatable tracks on either side thereof that supports the vehicle. Auxiliary chassis in a forward and rearward direction also carry tracks on either side, with theses auxiliary chassis being pivotable to raised or lowered positions to accomplish movement over uneven terrain or for storage of the vehicle. All of the tracks on one side of the vehicle (main chassis track and tracks on forward and rearward auxiliary chassis) are rotated by a single drive mechanism within the main chassis, with the rotation of the tracks on the second side being rotated by another internal main drive mechanism. The pivotal movement of each of the auxiliary chassis is controlled by a separate drive mechanism.

Abstract: A remotely controlled vehicle for traversing various terrains to accomplish missions in a hostile environment. This remotely controlled vehicle has a main chassis with rotatable tracks on either side thereof that supports a central body of the vehicle. Auxiliary chassis in a forward and rearward direction also carry tracks on either side, with these auxiliary chassis being pivotable to raised or lowered positions to accomplish movement over uneven terrain. The body carriers a deployable arm including a shoulder, an elbow and a wrist, with this arm being provided with five degrees of motion. The drive means throughout the vehicle for the main tracks and for the essential components of the arm are carried out through the use of motor driven planetary gear assemblies to achieve the necessary torque and speed.

Abstract: A device for effecting a link pipe seal between aligned portions of conduit. This device has a body portion (22) which may be affixed to any given structure and one portion of the tubing or piping (14) to be joined is clamped therein. The body provides for axial alignment of a second piece of tubing or piping (12) and carries a swing clamp (34) for engaging the second piece of tubing or piping whereby the second piece is moved axially toward the first piece to effect the seal. The motion of the swing clamp is accomplished by a left-handed threaded bolt (42), threadably engaged with the swing clamp and carried by the body as the pivot element for the swing clamp. Frictional engagement between the swing clamp and the threaded bolt brings about movement of the swing clamp between first and further preselected rotational positions as the bolt is rotated.