Electric sonic device for cleaning small articles

Claim 1

A device for sonic cleaning articles comprising a rigid container having a substantially rectangular open top cavity therein adapted to hold a predetermined quantity of cleaning liquid, an electromagnetic solenoid with a stationary coil and core thereof secured to the container adjacent to and at one outer side of said cavity, a movable core slidably positioned in said solenoid with an outer end thereof projecting therefrom, said movable core terminating at its said outer end in a weight of predetermined mass, a source of alternating electric energy, a compression spring on said movable core biased between said stationary coil and core and said movable core for preventing the latter from contacting said stationary core when said coil is connected to and energized by said electric energy, a foraminated holder for loosely retaining articles to be cleaned having spaced parallel outer edges for manual insertion in oblique substantially vertical position into opposite corner junctions of the said cavity for retaining said articles submerged in said liquid whereby said reactionary oscillatory forces from said movable core and said weight will oscillate said stationary core and transmit waves in said container and said liquid to clean articles submerged therein when said coil is connected to said source of electric energy, said solenoid being so positioned that the work in the holder is subjected to liquid oscillations at an oblique angle.

Claim 2

A device for sonic cleaning articles comprising a rigid container having a substantially rectangular open top cavity therein adapted to hold a predetermined quantity of cleaning liquid, an electromagnetic solenoid with a stationary coil and core thereof secured to the container adjacent to and at one outer side of said cavity, a movable core slidably positioned in said solenoid with an outer end thereof projecting therefrom, said movable core terminating at its said outer end in a weight of predetermined mass, a source of alternating electric energy, a compression spring on said movable core biased between said stationary coil and core and said movable core for preventing the latter from contacting said stationary core when said coil is connected to and energized by said electric energy, a foraminated holder for loosely retaining articles to be cleaned having spaced parallel outer edges for manual insertion in oblique substantially vertical position into opposite corner junctions of the said cavity for retaining said articles submerged in said liquid whereby said reactionary oscillatory forces from said movable core and said weight will oscillate said stationary core and transmit waves in said container and said liquid to clean articles submerged therein when said coil is connected to said source of electric energy, said solenoid being so positioned that the work in the holder is subjected to liquid oscillations at an oblique angle.