Surface-treating apparatus and method

Abstract

Abstract A SURFACE-TREATING APPARATUS AND METHOD, THE APPARATUS INCLUDING CENTRALLY-JOINTED RADIALLY-EXTENDING BLADES COMPRISING A FAN-SHAPED PLATE, A RESILIENT COMPRESSIBLE COIL SPRING, INTERPOSED BETWEEN THE BACK OF THE PLATE AND A ROTATABLE DIRVE SHAFT NON-ROTATABLY JOINTED TO THE PLATE THROUGH THE SPRING,A ND A HOUSING GENERALLY SURROUNDING ALL EXCEPT THE FRONT FACE OF THE RADIALLY-EXTENDING BLADES, THE HOUSING TERMINATING IN A HOLLOW HANDLE WHICH ROTATABLY CARRIES THE SHAFT. A STABILIZER ROD BRIDGES BETWEEN THE FREE END OF EACH BLADE AND THE SPRING. THE SHAFT IS POWERED BY A SUITABLE MOTOR, AND CLAMPING STRUCTURE ASSOCIATED WITH THE BLADE IS PROVIDED TO MAINTAIN SHEETS OF ABRASIVE OR OTHER SURFACE-TREATING MATERIAL IN TAUT RELATION ACROSS THE FRONT FACE OF EACH BLADE. A DUST EGRESS APERTURE IS PREFERABLY PROVIDED IN THE HOUSING TO ACCOMMODATE CONNECTION OF A VACUUM TO CONTINUOUSLY REMOVE PARTICLES TREATED BY ACTION OF THE ABRASIVE MATERIAL ON A SURFACE. PREFERABLY AIR INGRESS PORTS EXIST IN THE PERIPHERY OF THE HOUSING ADJACENT THE FREE ENDS OF THE BLADES. PROCEDURALLY, THE BLADES YIELD FORE AND AFT AS NECESSARY TO FOLLOW WARIATIONS IN THE SURFACE BEING TREATED, WITH THE STABILIZER RODS EXERTING A RESTRAINING FORCE COUNTER TO THE INSTANTANEOUS FORE AND AFT MOTION OF THE BLADES.

Inventors

• 👤 Billy G Miller

Bibliographic Details