Three-stage snow thrower

Patent metadata

Field	Value
Publication number	US-11401671-B2
Application number	US-201816213046-A
Country	US
Kind code	B2
Filing date	Dec 7, 2018
Priority date	Apr 12, 2012
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

A three-stage snow thrower having a housing, a power supply operatively connected to said housing, a longitudinal drive shaft extending from the power supply into the housing, and a lateral drive shaft extending rotatably attached to opposing side walls of the housing and being meshingly engaged with the longitudinal drive shaft within a gear assembly. The power supply drives the longitudinal drive shaft, thereby causing the longitudinal drive shaft to rotate, and at least a portion of such rotation is transferred to the lateral drive via a gear assembly. The first stage assembly includes a plurality of augers attached to the lateral drive shaft, wherein the first stage assembly pushes loosened snow axially toward the gear assembly. The second stage assembly includes at least one auger attached to the longitudinal drive shaft, wherein the second stage assembly pushes the snow from the first stage assembly axially rearward in a transverse manner relative to the first stage assembly. The third stage assembly includes an impeller that rotates to throw the snow from the second stage assembly through a chute attached to the housing to expel the snow from the housing.

First claim

What is claimed is:

1. A multiple-stage snow thrower for removing accumulated snow, said multiple-stage snow thrower having a housing that includes a central portion and a recess extending rearwardly from said central portion and said central portion having opposing side walls, a frame, and a power supply operatively connected to said frame, said multiple-stage snow thrower comprising:
a lateral drive shaft operatively connected to said power supply, wherein said lateral drive shaft is rotatably driven by said power supply, said lateral drive shaft extends between said opposing side walls of said central portion of said housing;
a longitudinal drive shaft operatively connected to said power supply, wherein said longitudinal drive shaft is rotatably driven by said power supply, said longitudinal drive shaft is oriented perpendicular to said lateral drive shaft;
a first stage assembly connected to said longitudinal drive shaft, wherein rotation of said longitudinal drive shaft rotates said first stage assembly to expel said snow from said housing;
a second stage assembly connected to said longitudinal drive shaft, wherein rotation of said second stage moves said snow toward said first stage assembly;
a third stage assembly connected to said lateral drive shaft, wherein rotation of said third stage assembly moves said snow toward said second stage assembly,
wherein said snow is moved from said third stage assembly toward said second stage assembly and from said second stage assembly toward said first stage assembly without ram induction.

2. The multiple-stage snow thrower of claim 1 further comprising a gear assembly receiving both said longitudinal drive shaft and said lateral drive shaft therewithin.

3. The multiple-stage snow thrower of claim 1 , wherein third stage assembly includes a pair of augers attached to said lateral drive shaft.

4. The multiple-stage snow thrower of claim 1 , wherein said second stage assembly includes a pair of augers, wherein one of said pair of augers is positioned longitudinally rearward of said lateral drive shaft and the other of said pair of augers is positioned longitudinally forward of said lateral drive shaft.

Assignees

• Mtd Products Inc

Inventors

• Cmich Ryan
• Dilgard Tim
• Eavenson Sr Jimmy N
• Hein Dave
• Jocke Joe
• Saha Amit

Classifications

• E01H5/096

  about axes parallel or substantially parallel to the direction of clearing · CPC title

• E01H5/045 Primary

  Means per se for conveying or discharging the dislodged material, e.g. rotary impellers, discharge chutes (dislodging apparatus provided therewith E01H5/07, E01H5/08, E01H5/104, E01H5/12) · CPC title

• E01H5/098 Primary

  about horizontal or substantially horizontal axises perpendicular or substantially perpendicular to the direction of clearing · CPC title

• E01H5/09

  the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels · CPC title

• E01H5/04 Primary

  Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying {levelling} elements, conveying pneumatically {for the dislodged material}(E01H5/10, E01H5/12 take precedence) · CPC title