公开(公告)号：US20240263642A1

公开(公告)日：2024-08-08

申请号：US18431557

申请日：2024-02-02

Applicant: MTD PRODUCTS INC

Inventor： Jay Maggard ,  Jeffrey R. Kucera ,  Garrett Rosinski ,  Dominic Kedelty ,  Jacob Petersen

IPC: F04D29/42 ,  F04D25/08

CPC classification number: F04D29/4226 ,  F04D25/08

Abstract: An air blowing apparatus having an auxiliary housing and auxiliary air flow output that can be selectively engaged and disengaged is described herein. In an embodiment of the disclosure, the auxiliary housing can comprise an auxiliary fan to generate a second high speed air flow to supplement a high volume air flow of a primary housing. When baffled, the auxiliary fan is isolated from air intake and can be driven with little power consumption. An air blowing apparatus can be a backpack-style apparatus or hand-held air blowing apparatus. As examples, one airflow can have a relatively high volumetric flowrate relative to another airflow, or can have a high air speed relative to another airflow, or can have a high energy relative to another airflow, and so forth.

公开(公告)号：US10935039B2

公开(公告)日：2021-03-02

申请号：US15805465

申请日：2017-11-07

Applicant: MTD PRODUCTS INC

Inventor： Dominic Kedelty ,  Maryam Khorshidi

IPC: F04D29/22 ,  F04D29/28 ,  F04D17/08 ,  F04D17/16 ,  F04D29/66 ,  F04D29/30

Abstract: A blower impeller having a plate with a first side surface, a second side surface, and an outer circumferential edge extending between the first and second side surfaces; a front blade series extending from the first side surface, the front blade series comprising a plurality of front fins, wherein each front fin includes a first radius of curvature and a second radius of curvature; and a rear blade series extending from the second side, the rear blade series comprising a plurality of rear fins.

公开(公告)号：US20190136866A1

公开(公告)日：2019-05-09

申请号：US15805465

申请日：2017-11-07

Applicant: MTD PRODUCTS INC

Inventor： Dominic Kedelty ,  Maryam Khorshidi

IPC: F04D29/22 ,  F04D29/28 ,  F04D17/08

Abstract: A blower impeller having a plate with a first side surface, a second side surface, and an outer circumferential edge extending between the first and second side surfaces; a front blade series extending from the first side surface, the front blade series comprising a plurality of front fins, wherein each front fin includes a first radius of curvature and a second radius of curvature; and a rear blade series extending from the second side, the rear blade series comprising a plurality of rear fins.