Frederick A Hunt

US Patent:

42766745, Jul 7, 1981

Filed:

Feb 4, 1980

Appl. No.:

6/118501

Inventors:

Frederick B. Hunt - Wauwatosa WI

Assignee:

Milwaukee Dustless Brush Co. - Milwaukee WI

International Classification:

A46B 710

US Classification:

15182

Abstract:

A rotary broom for street sweepers and the like includes a central core. The spaced turns of a sweeping brush extend around the core. A spacer, such as a tape running parallel to the axis of the core, interconnects the turns of the brush for limiting longitudinal movement of the turns relative to each other to provide a desired spacing between the turns.

US Patent:

42676169, May 19, 1981

Filed:

Sep 15, 1978

Appl. No.:

5/942778

Inventors:

Frederick B. Hunt - Wauwatosa WI

Assignee:

Milwaukee Dustless Brush Co. - Milwaukee WI

International Classification:

A46B 710

US Classification:

15182

Abstract:

A rotary broom for street sweepers and the like includes a central core. A coiled sweeping brush means has one end affixed to the core and is helically wound around the core. The turns of the brush means are free to move on the core and the winding direction of the brush means is coordinated with the direction of rotation of the broom so that rotation of the broom on the street produces a circumferential movement of the brush means about the core which tightens the brush means on the core. The brush means may comprise a first coiled sweeping brush with one end affixed to the core and helically wound around the core in a first winding direction, typically toward the center of the core. A second coiled sweeping brush has one end affixed to the core and is wound in the opposite direction of winding toward the center of the core. The inner ends of the brushes may be coupled to a clip which permits the slack removing, circumferential movement about the core while restraining the ends for other movements together.