Battery powered riding floor stripping machine

• US 7,562,412 B1
• Filed: 01/05/2007
• Issued: 07/21/2009
• Est. Priority Date: 01/25/2005
• Status: Active Grant

• Current Assignee: National Flooring Equipment Incorporated
• Original Assignee: National Flooring Equipment Incorporated
• Inventors: Anderson, Martin L.
• Primary Examiner(s): CHIN, RANDALL E
• Application Number:
  US11/620,299
• Time in Patent Office: 928 Days
• Field of Search: 15/491, 15/931, 299/37.1
• US Class Current: 15/93.1
• CPC Class Codes: E04G 23/006 Arrangements for removing of previously fixed floor coverings

Abstract

A floor stripping machine having the electric motor and hydraulic pump placed just aft of the blade engages adds weight to the blade and provides for a narrower more compact design with a lower center of gravity for better maneuverability and ease of access to narrow halls, doorways and rooms. A battery powered floor stripping machine may have batteries stored in the housing under the seat and have auxiliary batteries behind the seat on top of the housing for easy of removing the batteries for recharging. Additional batteries and or weights can be used on either side of the housing. In alternative embodiments the floor stripping machine can be remote controlled. Battery management with the auxiliary batteries being recharged during the day allows for eight hours of use. A trunk may store batteries, which can be slid onto a trailing cart to change batteries.

Claims

1. A floor stripping machine comprising:

a rear housing section having a pair of rear wheels and a motor for driving each of the rear wheels,

a motor section attached to the front of the rear housing section, and

an adjustable blade assembly comprising

a blade plate bracket attached to the front of the motor section,

a first vertically adjustable blade plate positioned generally perpendicular to the floor surface and held by the blade plate bracket,

a second blade plate;

a hinge attached at the base of the first blade plate for pivotally connecting the second blade plate to the first blade plate,

a blade holder,

a floor scraping blade supported by the blade holder,

a rod member connecting the blade holder to the second blade plate,

the adjustable blade assembly being such that the weight distribution of the motor section adds weight to the front of the floor stripping machine to increase the effectiveness of the floor scraping blade.

2. A floor stripping machine as in claim 1 wherein,

the motor section contains an electric motor and

at least one battery is enclosed in the rear housing section.

3. A floor stripping machine as in claim 2 wherein,

at least one battery is placed on the top of the rear housing section.

4. A floor stripping machine as in claim 3 wherein,

at least one battery is placed in at least one of the sides of the rear housing section near the front.

5. A floor stripping machine as in claim 1 wherein,

an electric motor drives a hydraulic pump and the rear wheels are driven by hydraulic motors.

6. A floor stripping machine as in claim 1 wherein,

a cord holder is attached to the rear housing section for holding a power cord which provides power to the motor.

7. A floor stripping machine as in claim 1 wherein,

a seat on top of the rear housing section for supporting a user who rides on and controls the floor stripping machine.

8. A floor stripping machine as in claim 7 wherein,

a control handle having an on/off safety switch is attached to the rear housing section.

9. A floor stripping machine as in claim 1 wherein,

a remote control receiver in the floor stripping machine receives control signals for controlling the floor stripping machine.

10. A floor stripping machine as in claim 2 wherein,

the electric motor drives a hydraulic pump and the rear wheels are driven by hydraulic motors.

11. A floor stripping machine as in claim 10 wherein,

at least one battery placed on the top of the housing section.

12. A floor stripping machine as in claim 11 wherein,

at least one battery placed in at least one of the sides of the housing section near the front.

13. A floor stripping machine as in claim 11 wherein,

a remote control received in the floor stripping machine receives control signals for controlling the floor stripping machine.

14. A floor stripping machine as in claim 11 wherein,

a seat on top of the housing section for supporting a user who rides on and controls the floor stripping machine.

15. A floor stripping machine as in claim 14 wherein,

a remote control received in the floor stripping machine receives control signals for controlling the floor stripping machine.

16. A floor stripping machine as in claim 2 wherein,

a trunk lid on the rear housing section opens to access the batteries therein.

17. A floor stripping machine as in claim 16 wherein,

the rear housing section has a base for supporting the batteries,

a cart having a tongue for attaching to a cart hitch on the floor stripping machine, the cart having a shelf at the same height as the housing section base to facilitate moving the batteries between the cart and the floor stripping machine.

18. A floor stripping machine as in claim 17 wherein,

the batteries have handles thereon and the batteries plugs for connecting to plugs on the floor stripping machine to supply power to the motor.

19. A floor stripping machine as in claim 16 wherein,

an electric motor drives a hydraulic pump and the rear wheels are driven by hydraulic motors.

20. A floor stripping machine as in claim 16 wherein,

a seat on top of the rear housing section for supporting a user who rides on and controls the floor stripping machine.