Powder sampling device
View Patent ↗The powder sampling device comprises, next to a vertical channel ( 1 ) a drawer that is also vertical which may be lowered so that a groove ( 5 ) passes into a sampling mouth ( 12 ). A flap ( 15 ) may be extended to direct the powder towards the groove ( 5 ) temporarily and fill it, without the drawer ( 4 ) or the flap ( 15 ) disrupting the flow in normal circumstances nor causing any residue of powder likely to alter the measurements. In particular, the flap ( 15 ), the groove ( 5 ) and the corbelled section ( 2 ) have faces ( 6, 8 ) that are heavily angled on which the powder can only slide.
1. Powder sampling device comprising:
a lateral extension, generally empty of powders, coupled to a powder flow channel ( 1 ) and having an angled base plate;
a reciprocating member ( 4 ) having a groove traversing a wall of the lateral extension and sliding between a first position wherein said groove is located within the lateral extension in order to collect a powder sample and a second position wherein the groove is located outside the lateral extension in order to release the collected powder sample, the groove being defined by a ceiling face ( 7 ) and an angled face ( 8 ); and
a flap ( 15 ) in the flow channel that moves between a withdrawn position where it has essentially no effect on the flow of the powders and an extended position where it directs the flow of the powders into the groove, wherein the reciprocating member ( 4 ) has an upright orientation and that the angled face is parallel to and extends from the base plate of the lateral extension when the reciprocating member is in the first position.
2. Powder sampling device of claim 1 , wherein:
the base plate ( 6 ) is angled towards the channel;
the second position is situated below the first position; and
the flap movement rotates from an essentially vertical, withdrawn position to an angled, extended position through the channel, the extended position allowing the flap to touch the base plate just below the groove when the reciprocating member is in the first position.
3. Powder sampling device of claim 2 , wherein the flap is a spout having an incurved section.