Massage apparatus with electrostatic field

A massage apparatus for massaging the skin of a person to be treated which apparatus comprises

• (a) an electrical switching circuit adapted to be connected to a source of alternating electric current and comprising a rectifying unit and a current supply means for generating a first, periodically interrupted D.C. voltage between a first plus pole and a first minus pole, linear voltage regulator means for generating a second D.C. voltage between a second plus pole and a second minus pole, and comprising posts for the connection of lines for each of said poles and frequency control means adapted for infinitely varying the periodic interruptions of said first D.C. voltage, applied to said first minus pole and said first plus pole, in the range of from 5 to 50 cycles,
• (b) a first massaging unit comprising a housing, electromagnetic oscillator means adapted for producing mechanical oscillation and comprising electromagnetic coil means and armature means, said armature means having a free oscillatable armature end, and
• a vibrator head of electrically conductive material and having a flat part and an electrically insulating coating covering said flat part, said vibrator head being destined to be placed with the electrically insulating coating of said flat part on a first region of the skin of a person to be treated, and said vibrator head having an electrically conductive neck portion, facing away from said flat part and being mounted on said free oscillatable armature end in such a position that at least said flat vibrator head part is outside said housing, and the oscillations of said vibrator head occur along an axis extending substantially vertically to the skin portion contacted by said flat part,
• (c) coil-energizing current supply circuit comprising said rectifier means for producing a D.C. supply voltage and having output posts, said electromagnetic coil means being connected across said output posts,
• (d) electric lines connected to the posts of said first plus pole and to said first minus pole, on the one hand, and to said current supply circuit on the other hand, whereby said electromagnetic coil means are energized interruptedly in harmony with said first, periodically interrupted D.C. voltage,
• (e) an electric line connected to one of the posts of said second plus pole and said second minus pole, on the one hand, and to said electrically conductive neck portion, to apply the respective pole of said second D.C. voltage to said flat part of said vibrator head, whereby said flat part constitutes a first electrode,
• (f) a second electrode unit of electrically conductive material and having a flat part adapted for being placed on a second region of the skin of the same person to be treated, on the opposite side of the body portion from where said vibrator head flat part defined under (b) is placed on the skin, that body portion constituting a dielectric layer between said first and second electrodes,
• (g) a separate electric line connected to the other one of the posts of said second plus pole and said second minus pole, on the one hand, and to said second electrode unit, thereby establishing an electrostatic field of said second D.C. voltage, between said flat part of said vibrator head and said flat part of said second electrode unit, as capacitor plates, and through the body of the person to be treated, acting as the dielectric therebetween, and wherein said linear voltage regulator means for generating said second D.C. voltage comprise potentiometer means for adjusting the strength and polarity of said electrostatic field.