Kennecott Corporation

The Carborundum Company

Pangborn Corporation

Donald G Corderman

James H Carpenter

Jerry L Godwin

Haven L Keller

Apparatus for conditioning a granular material having a centrifugal throwing wheel for projecting the material radially against an impact surface member which completely surrounds and is spaced from the periphery of the wheel and includes an impact plate and ricochet plates. The impact plate is provided with generally radially disposed baffles with sides of adjacent baffles guiding and channeling the stream of material. The baffles are triangular in cross section with a forwardly facing side sloping at a lesser angle than the other side. The general course of granular material is downwardly through the apparatus and to retard this flow and thereby promote separation of granular material from fines, bed baffles which entrap and hold granular material are provided within the apparatus. Apparatus is provided for introducing a stream of air into the apparatus for transverse flow across the retarded downward stream of granulated material to effect separation of fines.

Apparatus for conditioning granular material

This invention relates to the mounting of vanes on a runnerhead of an abrasive blasting machine. The face of the runnerhead is provided with slots in which bases of vanes are slid in a generally radial direction with the base having an interlock with the runnerhead so as to retain the vane against movement normal to the face of the runnerhead. This invention particularly has to do with the locking of the vane base in the runnerhead slot. A locking pin is used which is preferably rectangular as opposed to the usual circular pin and the outer ends of the runnerhead slot and vane base are provided with cooperating slots and grooves which receive the pin, the pin being inserted in a first groove and slot arrangement at an angle to the axis of the base and then rotated or pivoted into a second groove and slot arrangement where it is locked in place against retrieval. The pin is locked in place by the outwardly movement of the vane from its pin inserting position. Certain embodiments of the invention have a safety feature in when the vane is in the pin receiving position, the inner end of the vane will engage a lug case on the outside of the impeller case so as to prevent rotation of the runnerhead.

Vane retention apparatus for abrasive blasting machine

This relates to the mounting of vanes on a runnerhead of an abrasive blasting machine. The face of the runnerhead is provided with slots in which bases of vanes are slid in a generally radial direction with the base having an interlock with the runnerhead so as to retain the vane against movement normal to the face of the runnerhead. This particularly has to do with the locking of the vane base in the runnerhead slot. The pin is rectangular as opposed to the usual circular pin and the outer ends of the runnerhead slot and vane base are provided with cooperating slots and grooves which receive the pin, the pin being inserted in a first groove and slot arrangement at an angle to the axis of the base and then rotated or pivoted into a second groove and slot arrangement where it is locked in place against retrieval. The pin is locked in place by the outward movement of the vane from its pin inserting position. The machine has a safety feature in that when the vane is in the pin receiving position, the inner end thereof will engage a lug cast on the outside of the impeller case so as to prevent rotation of the runnerhead.

Vane retention apparatus for abrasive blasting mechanism

Apparatus and method are provided for producing a blast pattern with a centrifugal throwing wheel for alternatively providing a blast pattern having a conventional length and for providing a blast pattern having a shorter length than heretofore possible with a standard throwing wheel.

Growing community of inventors

Hagerstown, MD, United States of America

Donald G Corderman