Snowthrower impeller assembly with rigid cutting implement

US9840818B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9840818-B2
Application numberUS-201615092321-A
CountryUS
Kind codeB2
Filing dateApr 6, 2016
Priority dateFeb 27, 2013
Publication dateDec 12, 2017
Grant dateDec 12, 2017

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An impeller assembly for a snowthrower includes a flexible impeller configured to rotate about an axis, wherein the flexible impeller extends radially from the axis to an impeller radial distance, and a cutting implement extending radially from the axis to a cutting implement radial distance less than the impeller radial distance, wherein the cutting implement is spaced apart from and does not contact the flexible impeller.

First claim

Opening claim text (preview).

What is claimed is: 1. An impeller assembly for a snowthrower, comprising: a flexible impeller configured to rotate about an axis, wherein the flexible impeller extends radially from the axis to an impeller radial distance; a driven shaft configured to rotate about the axis; two cutting disks, each cutting disk attached to the flexible impeller to couple the flexible impeller to the driven shaft; a blade attached by a plate to a central portion of the driven shaft between the two cutting disks and wherein the flexible impeller is attached to the plate; and a cutting implement extending radially from the axis to a cutting implement radial distance less than the impeller radial distance, wherein the cutting implement is spaced apart from and does not contact the flexible impeller. 2. An impeller assembly for a snowthrower, comprising: a flexible impeller configured to rotate about an axis, wherein the flexible impeller extends radially from the axis to an impeller radial distance; a cutting implement extending radially from the axis to a cutting implement radial distance less than the impeller radial distance, wherein the cutting implement is spaced apart from and does not contact the flexible impeller; a driven shaft configured to rotate about the axis; and a blade attached by a plate to a central portion of the driven shaft between two cutting disks attached to the flexible impeller and wherein the flexible impeller is attached to the plate.

Assignees

Inventors

Classifications

  • Apparatus or implements specially adapted for breaking, disintegrating, or loosening layers of ice or hard snow {with or without clearing or removing (E01H5/10 takes precedence); Roughening ice or hard snow by means of tools (by means of gritting materials E01H10/00; roughening or breaking-up pavements E01C23/08, E01C23/12)} · CPC title

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

  • E01H5/045Primary

    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

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9840818B2 cover?
An impeller assembly for a snowthrower includes a flexible impeller configured to rotate about an axis, wherein the flexible impeller extends radially from the axis to an impeller radial distance, and a cutting implement extending radially from the axis to a cutting implement radial distance less than the impeller radial distance, wherein the cutting implement is spaced apart from and does not …
Who is the assignee on this patent?
Briggs & Stratton Corp
What technology area does this patent fall under?
Primary CPC classification E01H5/045. Mapped technology areas include Fixed Constructions.
When was this patent published?
Publication date Tue Dec 12 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).