US 12,473,926 B1
Impellers and manufacturing methods thereof
David M. Carroll, Mentor on the Lake, OH (US); and Jeffrey S. Nagal, Mayfield Heights, OH (US)
Assigned to MORRISON PRODUCTS, INC., Cleveland, OH (US)
Filed by Morrison Products, Inc., Cleveland, OH (US)
Filed on Aug. 14, 2024, as Appl. No. 18/804,981.
Int. Cl. F04D 29/28 (2006.01); F04D 29/62 (2006.01)
CPC F04D 29/282 (2013.01) [F04D 29/626 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An impeller, comprising:
a front plate having one or more first openings and one or more first locking projections;
a back plate having one or more second openings and one or more second locking projections; and
a plurality of blades, each blade having one or more first tabs and one or more second tabs, wherein the first tabs and the second tabs each have a slot for receiving one of the front plate and the back plate;
wherein the one or more first tabs of the plurality of blades extend through the one or more first openings of the front plate and the front plate is received by the slots of the one or more first tabs to assemble the blade to the front plate;
wherein the one or more second tabs of the plurality of blades extend through the one or more second openings of the back plate and the back plate is received by the slots of the one or more second tabs to assemble the blade to the back plate;
wherein the first locking projections are moved to the closed position to lock the plurality of blades to the front plate; and
wherein the second locking projections are moved to the closed position to lock the plurality of blades to the back plate.