Sparkplug cleaner

In combination a closed container comprising a bottom wall, a top wall and cylindricl sidewalls extendingbetween said top and bottom walls to form an enclosed substantially cylindrical space, for receiving and containing a charge of abrasive particulate a sparkplug holding and sealing means extending radially through the upper end of the sidewalls of said container for holding and exposing the spark terminal electrodes of a plurality of sparkplugs seated in said holding and sealing means in a ring around the upper end of the sidewalls, a closed impeller having a lower sideplate with a central inlet opening and having an upper sideplate with a vertical supporting drive shaft connected to said upper sideplate a driving motor on said top wall for operating said impeller drive shaft and impeller, a series of impeller blades extending between the lower apertured impeller sideplate and the top impeller sideplate and directing vanes disposed in said cupshaped container for directing air and particulate discharged from the impeller in a spiral path from the bottom of the container to the inlet opening in the open bottom sideplate of the impeller.

In a sparkplug cleaner a closed cylindrical container having a releasable horizontal top wall, and an upwardly open cup comprising vertically extending sidewalls, said container containing a charge of abrasive particulate, a motor mounted on said top wall, said motor having a shaft disposed vertically and extending through said top wall, a closed impeller mounted on said shaft below said top wall said impeller having spaced horizontal discs with spaced impeller blades between said discs, the lower disc having a central intake opening communicating with spaces between said blades, the upper disc being imperforate, the upper end of the sidewalls of said cup having a horizontal row of openings extending therethrough on a common level, means for holding in sealed relation to the edges of the sidewall openings a plurality of sparkplug holders for holding the threaded ends of the held sparkplugs with their longitudinal axes disposed on substantially a common level with the horizontal discharge of said impeller, whereby energization of the motor and rotation of said impeller creates an interior circulation of contained air and particulate and drives the same against the exposed ends of said sparkplugs held in said holders.

A sparkplug cleaner comprising a closed vessel containing a charge of abrasive particulate and having flexible holders for holding the threaded ends of a series of sparkplugs comprising spaced insulated electrodes and an intervening insulator exposed interiorally of said vessel, a motor driven blower-impeller in said vessel, an annular discharge duct leading from said impeller and directing the discharge of particulate by the blower-impeller against said exposed electrodes and insulation, each of said flexible holders being capable of independent limited universal gyratory movement to expose the electrodes and insulator to the impingement of the abrasive particulate discharged by the blower-impeller.

In a sparkplug cleaner a closed vessel comprising a cylindrical cup-shaped lower portion facing upwardly and having a plurality of tubular sparkplug holders comprising radially extending apertures through the sidewalls disposed in horizontal alignment in a ring said apertures being covered by elastic diaphragms which have crossing slits at their center for receiving and realigning the threaded ends of sparkplugs and holding them in said apertures in radial position said closed vessel comprising a cover member closing the open top of said cup-shaped portion, an electric motor having a shaft projecting vertically down through the center of the cover member and carrying a closed impeller having an upper closed plate carried on said shaft a lower plate with a central inlet opening and a series of impeller blades between said upper and lower plates aligned horizontally with the sparkplug holders for projecting particulate against the electrodes of sparkplugs held in said sparkplug holders;

• the lower portion of said cup-shaped body containing a spiral vane providing a guiding passageway from the lower part of said cup-shaped body portion of the closed vessel to the central inlet of the lower sideplate of the impeller for conveying particulate from the lower part of the vessel to the intake opening on the lower side of the impeller.