Accession Number : ADD011544

Title :   Pneumatic Clamping Device.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Kosmal,B A ; Auld,F W

Report Date : 18 Dec 1984

Pagination or Media Count : 6

Abstract : A pneumatic clamping device used to clamp a plurality of sheets together includes a cylinder with a guide element at one end defining a pneumatic chamber within the cylinder and a piston having an elongated shaft, a cylindrical head on one end of the shaft and a clamping foot on an opposite end of the shaft. The piston head is movable within the cylinder chamber, while the piston shaft extends through the guide element and positions the piston foot for insertion through aligned holes in the sheets when the shaft is substantially extended from the cylinder. A coil spring is positioned in the cylinder chamber between one side of the piston head and an end of the cylinder opposite from its one end for biasing the shaft to its extended position. Pressurized air for a source thereof may be supplied to the cylinder chamber at an opposite side of the piston head for overcoming the bias force of the coil spring, resulting in retraction of the piston shaft and clamping of the sheets together between the foot and the cylinder.

Descriptors :   *Patents, *Pneumatic equipment, *Clamps, Cylindrical bodies, Mandrels, Pistons, Shafts(Machine elements), Exhaust valves, Pressure distribution, Coils, Springs, Inlets

Subject Categories : Hydraulic and Pneumatic Equipment
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE