Steam mop

• US 6,584,990 B2
• Filed: 01/19/2001
• Issued: 07/01/2003
• Est. Priority Date: 01/19/2001
• Status: Expired due to Fees

• Current Assignee: Dervin International Pty Limited
• Original Assignee: Dervin International Pty Limited
• Inventors: Shaw, Robin Roger
• Primary Examiner(s): Gulakowski, Randy
• Assistant Examiner(s): Winter, Gentle E.
• Application Number:
  US09/765,822
• Publication Number:
  US 20020096201A1
• Time in Patent Office: 893 Days
• Field of Search: 134/35, 134/36, 134/37, 134/105, 134/201, 134/108, 134/198, 219/272, 219/273, 219/215, 153/20, 153/21, 153/22
• US Class Current: 134/105
• CPC Class Codes: A47L 13/22 with liquid-feeding devices
• CPC Class Codes: A47L 13/225 Steam mops

Abstract

A steam mop. A housing contains a water reservoir for storing water and a heating plate outside the water reservoir. The reservoir dispenses water to the heating element which heats the dispensed water to produce steam substantially instantaneously. The reservoir preferably includes a mechanism for dispensing additional water to the heating element on demand to produce a “burst of steam.” Preferably an absorbent cloth to which is attached a relatively stiff perimeter frame adapted to fit around the bottom of the housing is provided, the cloth assembly being easily removable for cleaning.

Claims

1. A steam mop for steam cleaning a floor surface, comprising:

a housing for resting on the floor surface;

a handle connected to said housing and projecting upwardly therefrom a sufficient amount to permit maneuvering the housing on the floor surface from a standing position;

a water reservoir contained within said housing for storing water, said water reservoir including a water outlet;

a heating plate outside said water reservoir, said heating plate for receiving water from said water outlet at a first flow rate; and

a flow rate increasing mechanism adjustable on demand by a user and operably coupled to said water reservoir for increasing the pressure and flow of water through said outlet as a result of adjustment to a rate that is substantially greater than said first flow rate.

2. The steam mop of claim 1, wherein said flow rate increasing mechanism includes a pump for increasing the pressure in said water reservoir.

3. The steam mop of claim 2, wherein said pump includes a spring biased plunger that is adapted to be pressed by a user to increase the pressure in said water reservoir.

4. The steam mop of claim 3, wherein said reservoir includes a water inlet for introducing water into said reservoir, the mop further comprising a cap adapted to seal said water inlet against said pressure.

5. The steam mop of claim 1, further comprising a cloth assembly comprising a perimeter frame adapted for fitting around a bottom perimeter of said housing and a water absorbent material attached to said perimeter frame.

6. The steam mop of claim 5, wherein said absorbent material is cloth and wherein said perimeter frame is relatively stiff compared to said cloth and relatively flexible compared to said housing.

7. The steam mop of claim 6, wherein said perimeter frame includes a gap defining two ends of said perimeter frame, and a fastener adapted to bind said two ends together.

8. The steam mop of claim 7, wherein said fastener comprises a complementary hook and loop fastener pair coupled respectively to said ends.

9. The steam mop of claim 1, wherein said flow rate mechanism is a spring biased plunger operably coupled to a piston, wherein pressing down on said plunger increases the pressure in said reservoir to release a burst of steam.

10. The steam mop of claim 1, wherein said heating plate includes channels for guiding the water.

11. The steam mop of claim 10, wherein sidewalls project upward from said heating plate to form said channels.

12. A steam mop for steam cleaning a floor surface, comprising:

a housing for resting on the floor surface;

a handle connected to said housing and projecting upwardly therefrom a sufficient amount to permit maneuvering the housing on the floor surface from a standing position;

a water reservoir contained within said housing for storing water, said water reservoir including a water outlet;

a heating plate outside said water reservoir, said heating plate for receiving water from said water outlet at a first flow rate; and

a flow rate increasing mechanism adjustable on demand by a user and operably coupled to said water reservoir for increasing the flow of water through said outlet as a result of adjustment to a rate that is substantially greater than said first flow rate, wherein said flow rate increasing mechanism includes a pump for increasing the pressure in said water reservoir, said pump including a spring biased plunger that is adapted to be pressed by a user to increase the pressure in said water reservoir.

13. A removable cloth assembly for a steam mop having a housing for resting on a floor surface, comprising an absorbent cloth material having a perimeter and a frame extending along at least a portion of said perimeter creating a cavity in the cloth assembly for receiving said mop and producing a friction fit by exerting an inwardly directed force on said mop;

wherein said perimeter frame is relatively stiff compared to said cloth and relatively flexible compared to the housing.

14. The steam mop of claim 13, wherein said frame includes a gap defining two ends of said perimeter frame, and a fastener adapted to bind said two ends together.

15. The steam mop of claim 14, wherein said fastener comprises a complementary hook and loop fastener pair coupled respectively to said ends.