# US 2016/0249779 A1 · Floor cleaning or burnishing machine pivot suspension

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- Number: US 2016/0249779 A1
- Document ID: US20160249779A1
- Status: Published application
- Kind: A1
- Application number: 14/943,114
- Filed: 2015-11-17
- Published: 2016-09-01
- Earliest claimed: 2014-11-18
- Assignees: NSS Enterprises, Inc.
- Applicants: NSS Enterprises, Inc.
- Inventors: Jeffery R. Fellhauer
- Web page: https://patentgrep.com/patent/US20160249779A1

## CPC

- A47L 11/4072: {Arrangement of castors or wheels}
- A47L 11/162: having only a single disc brush
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)

## Abstract

A pivot suspension has two separate wheels and a channel, which has two ends axially extending across a floor cleaning or burnishing machine. One wheel is attached to a first end of the channel and the other wheel is attached to a second end of the channel. The pivot suspension further has a pivot rod that is pivotably attached to and is in line from front to rear with the machine. The pivot rod is fixedly connected to the channel at a location between the two channel ends. As a result, the wheels and channel are pivotably attached to the machine, by way of the pivot rod. In combination with at least one wheel or caster that is attached to a frame of the machine, the two channel wheels form three points of contact with a floor, even if there is dirt, debris, and unevenness on or in the floor.

## Claims

### Claim 1

A floor cleaning or burnishing machine pivot suspension, comprising:
a floor cleaner or burnisher;
at least two separate wheels;
a channel having two ends and axially extending across a rigid frame of a floor cleaning or burnishing machine, wherein a first of the wheels is rotatably attached to a first end of the channel and a second of the wheels is rotatably attached to a second end of the channel; and
a pivot rod disposed in line from front to rear of the floor cleaning or burnishing machine, pivotably connected to the ridged frame of the floor cleaning or burnishing machine, and fixedly attached to the channel at a location between the two ends of the channel, so that the wheels are in a pivotable relationship with the ridged frame of the floor cleaning or burnishing machine.