Apparatus for the metered dispensing of a flowable medium, especially a lubricant

An apparatus for the metered dispensing of a flowable material, said apparatus comprising:

• a receptacle for said flowable material;
• a metering pump formed with a pumping chamber connected to said receptacle and receiving said flowable material therefrom, said metering pump comprising:
• a section of a flexible-wall tube defining said chamber,
• a checkvalve connecting said chamber with said receptacle and closing upon pressure in said chamber exceeding pressure in said receptacle, and
• a plunger displaceable against said wall for contracting said chamber to displace said flowable material therefrom;
• an outlet nozzle connected to said chamber for receiving flowable material displaced therefrom and delivering said flowable material;
• and
• actuating means operatively connected to said plunger for displacing same, said actuating means including:
• an actuating lever displaceable relative to said pump and acting upon said plunger for displacing same, said lever being restored to an initial position following displacement of said plunger to contract said chamber and
• an electromagnetic device responsive to a control signal and operatively connected to said actuating lever for displacing same at least from said initial position into an actuated position to displace said lever said electromagnetic device including a linearly displaceable rod, and a solenoid receiving said rod and imparting a linear stroke thereto, said rod bearing upon said lever.