Rotary dispenser with delivery regulating valve and scraper
AssigneeNodet-Gougis
InventorXavier Roger Grataloup
Life of this patent
Estimating the term…
Abstract
A regulating dispenser comprises a hopper and a movable surface for withdrawing material from the bottom of the hopper to the outside thereof. The movable surface is constituted by at least one area arranged so that the regulating dispenser does not deliver over the whole of its width. A movable delivery regulating valve and a scraper independant of the valve and bearing on the movable withdrawing surface are provided. The scraper is fast to the fixed wall of the hopper and bears elastically on the movable surface so as to ensure sealing in said at least one area from which the dispenser does not deliver.
Claims10
A regulating dispenser comprising a hopper having a dispensing opening of a predetermined height and length, a dispensing member positioned within said dispensing opening for the full width thereof and at a heighth less than the height of said opening and in combination with said hopper defining a slot through which material within said hopper may be moved out of said hopper above said dispensing member, said dispensing member having a movable dispensing surface positioned for movement from within said hopper to outside of said hopper, said movable dispensing surface including at least one delivery area and at least one non-delivery area spaced along the width of said opening, a regulating valve positioned between said moving surface and said hopper above said opening for controllably partially closing said slot, and a scraper mounted independently of said regulating valve and bearing on said movable dispensing surface close to said regulating valve, said scraper bearing elastically on said movable dispensing surface at least in said non-delivery area to ensure sealing of said non-delivery area against delivery of material from said hopper through said slot.
Dependencies are inferred from the claim text.