×

Vacuum power head with bare floor feature

  • US 5,477,587 A
  • Filed: 12/30/1993
  • Issued: 12/26/1995
  • Est. Priority Date: 08/10/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A vacuum cleaner for use by a user to clean a floor surface, the vacuum cleaner comprising:

  • a head assembly having an elongate vacuum chamber;

    a motor driven generally cylindrical elongate rotary brush rotatably supported within the vacuum chamber;

    a trailing brush located within the head assembly rearward of the rotary brush, the trailing brush being selectively positionable between a retracted position wherein the trailing brush is located away from a floor surface and an extended position wherein the trailing brush is located adjacent the floor surface;

    a first height adjustment mechanism for varying the height of the rotary brush relative to the floor between a plurality of height positions including a highest position and a bare floor cleaning position;

    a second height adjustment mechanism for selectively positioning the trailing brush between the retracted position and the extended position; and

    a single control knob which is selectively movable relative to the head assembly to actuate the first height adjustment mechanism to place the rotary brush in the bare floor cleaning position and concurrently actuate the second height adjustment mechanism to place the trailing brush in the extended position and to move the rotary brush out of the bare floor cleaning position and concurrently place the trailing brush in the retracted position.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×