CARPET CLEANING APPARATUSES

• US 3,688,338 A
• Filed: 04/27/1970
• Issued: 09/05/1972
• Est. Priority Date: 04/27/1970
• Status: Expired due to Term

• Current Assignee: N/A
• Original Assignee: N/A
• Primary Examiner(s): Walter A. Scheel
• Assistant Examiner(s): C. K. Moore
• Application Number:
  US05/032,193
• Time in Patent Office: 862 Days
• Field of Search: 15/81,380,381,42,43,349,364
• US Class Current: 15/364
• CPC Class Codes: A47L 11/33 having means for storing dirt
• CPC Class Codes: A47L 11/4036 Parts or details of the surface treating tools
• CPC Class Codes: A47L 11/4041 Roll shaped surface treating tools
• CPC Class Codes: A47L 11/4044 Vacuuming or pick-up tools; Squeegees
• CPC Class Codes: A47L 11/4069 Driving or transmission means for the cleaning tools
• CPC Class Codes: A47L 11/4094 Accessories to be used in combination with conventional vacuum-cleaning devices
• CPC Class Codes: A47L 9/0422 driven by the rotation of the supporting wheels on which the nozzle travels over the floor
• CPC Class Codes: A47L 9/045 Friction gearings

Abstract

A carpet cleaning apparatus comprising a cylindrical brush rotating in contact with the floor and at least one brush reciprocatory in the direction of travel of the apparatus in contact with the floor and mechanically connected to the rotary brush, and a vacuum cleaner nozzle associated with said reciprocatory brush.

Claims

1. In a carpet cleaning apparatus capable of use with suction having a cylindrical brush in contact with the floor for taking up dirt and travelling wheels connected to said cylindrical brush for rotating said brush about a horizontal axis of rotation which is perpendicular to the direction of travel of the apparatus, the improvement which comprises at least one additional brush for detaching dirt, a drive bar connecting said additional brush with said cylindrical brush, whereby said additional brush is given a movement reciprocatory in the direction of travel of the apparatus and in contact with the floor, and a nozzle adapted to communicate with a source of suction and associated with said additional brush for movement therewith.

2. Apparatus as claimed in claim 1, wherein said drive bar is a connecting rod driven by a crank pin eccentrically mounted on said cylindrical brush.

3. Apparatus as claimed in claim 1, wherein said nozzle is pivotally mounted and the pivot of a pivotally mounted socket for attachment of a common vacuum cleaner tube coincides with the pivot of said nozzle.