Accession Number : ADD016564

Title :   Impeller Assembly for Processing Device.

Descriptive Note : Patent, Filed 28 Sep 93, patented 20 Sep 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Spargo, John D ; Drake, John L , Jr

Report Date : 20 Sep 1994

Pagination or Media Count : 9

Abstract : An impeller of an impeller assembly for a processing device has a spiral groove formed in a circumferential side face so that material entering a clearance space between the circumferential side face of the impeller and inner circumferential walls of the processing device is guided out of the clearance space when the impeller assembly is rotated. The spiral groove prevent material from lodging in the space and jamming the impeller assembly.

Descriptors :   *IMPELLERS, *PATENTS, ASSEMBLY, CLEARANCES, JAMMING, MATERIALS, PROCESSING, WALLS

Subject Categories : Hydraulic and Pneumatic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE