Dispensing device for granular or pulverulent materials

Claim 1

A DISPENSING DEVICE FOR DISPENSING MEASURED AMOUNTS OF A FREE-FLOWING SOLID MATERIAL FROM A CONTAINER, COMPRISING, IN COMBINATION, A CONTAINER PART HAVING OPPOSITE SIDE WALLS, FRONT AND REAR WALLS, AND AN OPEN UPPER SIDE ADAPTED TO FORM AT LEAST A PART OF A STORAGE CHAMBER, GUIDING MEANS ON SAID FRONT AND REAR WALLS OF SAID CONTAINER PART, A SLIDE COVER SLIDABLE WITHIN AND GUIDED BY SAID GUIDING MEANS FOR CLOSING AND AT LEAST PARTLY OPENING SAID UPPER SIDE, A STOP MEMBER AND A CLOSURE MEMBER ON SAID PROJECTING DOWNWARDLY FROM THE INNER SIDE OF SAID COVER, A MEASURING COMPARTMENT CONNECTED TO AND WITHIN SAID CONTAINER PART NEAR ON SIDE WALL THEREOF UNDERNEATH SAID COVER, A PARTITION WITHIN SAID CONTAINER PART PARTLY DIVIDING SAID MEASURING COMPARTMENT CHAMBER, SAID CHAMBERS AND AN ADJACENT DISPENSING CHAMBER, SAID CHAMBERS COMMUNICATING UNDERNEATH SAID PARTITION WITH EACH OTHER, SAID DISPENSING CHAMBER HAVING AN UPPER OUTLET OPENING AND SAID RECEIVING CHAMBER HAVING AN UPPER OPENING LEADING TO SAID STORAGE COMPARTMENT, SAID COVER ADAPTED WHEN IN ONE POSITION TO CLOSE SAID OPEN SIDE AND SAID OUTLET OPENING COMPLETELY AND WHEN DRAWN OUT TO A DISPENSING POSITION DEFINED BY THE ENGAGEMENT OF SAID STOP MEMBER WITH THE UPPER EDGE OF THE OTHER SIDE OF SAID CONTAINER PART TO UNCOVER SAID OUTLET OPENING TO ALLOW DISPENSING THERETHROUGH ONLY FROM SAID DISPENSING COMPARTMENT, SAID CLOSURE MEMBER ADAPTED TO CLOSE SAID OPENING OF SAID RECEIVING CHAMBER WHEN SAID COVER IS CLOSED TO SHUT OFF SAID RECEIVING CHAMBER FROM SAID STORAGE COMPARTMENT AND ADAPTED TO UNCOVER SAID LAST OPENING WHEN SAID COVER IS IN SAID DISPENSING POSITION, SAID GUIDING MEANS BEING OFFSET FROM AN AREA ADJACENT TO THE POSITION IN WHICH SAID STOP MEMBER IS LOCATED WHEN SAID COVER IS IN SAID DISPENSING POSITION, SAID COVER CONSISTING OF A RESILIENT MATERIAL PERMITTING ITS UNGUIDED OUTER END IN THE DISPENSING POSITION TO BE LIFTED AGAINST ITS SPRING ACTION FOR A DISTANCE AT LEAST EQUAL TO THE HEIGHT OF SAID STOP MEMBER SO AS TO DISENGAGE SAID STOP MEMBER FROM THE UPPER EDGE OF SAID OTHER SIDE WALL SO THAT SAID COVER MAY THEN BE DRAWN OUT BEYOND SAID DISPENSING POSITION, A FIRST PROJECTION ON THE INNER SIDE OF SAID SLIDE COVER, SAID STOP MEMBER FORMING ONE END OF SAID FIRST PROJECTION, A SECOND PROJECTION ON THE INNER SIDE OF SAID COVER HAVING ONE END SPACED SLIGHTLY FROM THE OTHER END OF SAID FIRST PROJECTION SO AS TO FORM AN INTERMEDIATE LOCATING RECESS INTO WHICH THE UPPER EDGE OF SAID OTHERSIDE WALL IS ADAPTED TO ENGAGE WHEN SAID COVER IS DRAWN OUT BEYOND SAID DISPENSING POSITION TO A POURING POSITION IN WHICH IT COMPLETELY UNCOVERS SAID ENTIRE MEASURING COMPARTMENT SO THAT AN UNMEASURED AMOUNT OF MATERIAL MAY BE POURED OUT FROM SAID STORAGE CHAMBER, THE OTHER END OF SAID SECOND PROJECTION BEING SPACED SLIGHTLY FROM SAID CLOSURE MEMBER SO AS TO FORM ANOTHER LOCATING RECESS INTO WHICH SAID UPPER EDGE OF SAID OTHER SIDE IS ADAPTED TO ENGAGE WHEN SAID COVER IS FURTHER DRAWN OUT FOR HOLDING SAID COVER IN ITS OUTERMOST POSITION, SAID INTERMEDIATE LOCATING RECESS FOR HOLDING SAID SLIDE COVER IN SAID POURING BEING LOCATED IN APPROXIMATELY ABOVE THE INNER EDGE OF THE OPENING OF SAID RECEIVING CHAMBER LEADING TO SAID STORAGE COMPARTMENT.