US 12,472,517 B2
Dense-phase powder pump for conveying powder-type materials
Erich Sutter, St. Gallen (CH); and Marco Sanwald, Abtwil (CH)
Assigned to GEMA SWITZERLAND GMBH, Gossau (CH)
Appl. No. 18/577,950
Filed by GEMA SWITZERLAND GMBH, St. Gallen (CH)
PCT Filed Jul. 6, 2022, PCT No. PCT/EP2022/068800
§ 371(c)(1), (2) Date Jan. 9, 2024,
PCT Pub. No. WO2023/280948, PCT Pub. Date Jan. 12, 2023.
Claims priority of application No. 10 2021 117 799.5 (DE), filed on Jul. 9, 2021.
Prior Publication US 2024/0316582 A1, Sep. 26, 2024
Int. Cl. B65G 53/28 (2006.01); B05B 7/14 (2006.01)
CPC B05B 7/1459 (2013.01) [B65G 53/28 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A dense phase powder pump for conveying powder, wherein the dense phase powder pump comprises at least one powder conveying chamber having a gas-permeable filter element at least partially accommodated in a casing body and at least one pinch valve connected or connectable to an end region of the powder conveying chamber,
wherein:
the dense phase powder pump comprises a pinch valve housing designed as an end piece of the powder conveying chamber which has a first region facing the powder conveying chamber and an oppositely disposed second region, wherein the first region of the pinch valve housing is designed to be connectable to the end region of the powder conveying chamber via a plug connection, and wherein the second region of the pinch valve housing is designed to replaceably accommodate the pinch valve.