Abstract: This swivel connection (10) of metallic material includes a female block (12), a center spool (14) and a male spool (16) which provide substantially universal movement between a hose line connection (18) and pneumatic tool (1). A protective cover (80) is provided for the female block (12) and a protective cover (82) is provided for the exposed portion of the center spool (14). Both covers are of non-mar plastic material to protect finished surfaces with which the swivel connection (10) comes into contact during use. Both covers include access openings (92, 112) having snap-fitted removable caps (100, 120).

Abstract: This fluid coupling (10) includes a metallic tubular body (12) having an inlet end (14) and an outlet end (16), the outlet end being adapted to receive a quick-connect-disconnect plug (20). A metallic actuating sleeve (32, 38) is mounted to the body (12) for selectively permitting fluid flow through the body (12) and latching the plug (20) in place. An outer cover (60) of non-mar plastic material is provided for the coupling (10) , which is moveable with the actuating sleeve (32) and prevents the metallic parts of the coupling from marking finished surfaces.

Abstract: An aircraft windshield wiper arm assembly adapted particularly for use with curved windshields, the wiper arm assembly having a hub mountable on an oscillatory wiper drive post and an elongate wiper arm cantilevered from the hub with a wiper blade carried on the free end of the arm. The arm is so shaped that its moment of inertia decreases progressively from its fixed to its free end and the arm is preferably formed so as to assume a curved, unflexed position. An adjustment is provided for flexing the arm from its unflexed, curved position to a substantially flat position so that with the wiper blade bearing on the windshield, the arm exerts a desired force on the wiper blade as the windshield wiper arm assembly is swept over a curved windshield.

Abstract: An apparatus including a track which may have square corners, a carriage therefor, a carriage braking device, and a container holder supported from the carriage, wherein the holder may be quickly located in a desired position and maintained in this position.