Manual rotary brush

• US 6,338,176 B1
• Filed: 07/12/1999
• Issued: 01/15/2002
• Est. Priority Date: 03/16/1998
• Status: Expired due to Fees

• Current Assignee: Lee Y. Smith, Paul A Smith
• Original Assignee: Lee Y. Smith, Paul A Smith
• Inventors: Smith, Paul A., Smith, Lee Y.
• Primary Examiner(s): Warden, Sr., Robert J.
• Assistant Examiner(s): Olsen, Kaj K.
• Application Number:
  US09/351,938
• Time in Patent Office: 918 Days
• Field of Search: 15/28, 15/221, 151/671, 15D/IG.5, 152/01
• US Class Current: 15/28
• CPC Class Codes: A46B 7/08 as a rotating disc
• CPC Class Codes: Y10S 15/05 Varied length bristle

Abstract

A hand-held rotary brush is provided with a handle, a brush head having a hollow space, a tuft of bristles mounted onto a rotary device which is loosely set within the hollow space of the brush head. When the user manually pushes the brush, a frictional force is created which propels the bristles to catch the irregular surface of the teeth, gaps, causing the rotary device to turn to a circular rotating motion. The construction of the rotary brush can be improved by configured the rotary device with tracks and grooves, which sets within matched grooves and tracks of the hollow space to create a rotating path, that allows the rotary device to rotate within the hollow space of the brush head.

Claims

1. A manual rotary brush comprising:

a handle, a brush head having a hollow space, a tuft of bristles mounted onto a rotary device, the rotary device is set within the hollow space of the brush head with the handle orientation forming a rotary bush;

the rotary device comprising an outer circle configured with a plurality of tracks and grooves;

the hollow space comprising an inner circular wall configured with a plurality of tracks and grooves;

wherein the tracks of the outer circle of the rotary device are configured to match the grooves of the inner circular wall of the hollow space and the grooves of the outer circle of the rotary device are configured to match the tracks of the inner circular wall of the hollow space, and

the tracks of the rotary device are set within the matched grooves of the hollow space and the grooves of the rotary device are set within the matched tracks of the hollow space, therefore allowing the rotary device to rotate within the hollow space thereby creating a circular rotation of the tuft of the bristles upon moving the brush handle.

2. The manual rotary brush according to claim 1 wherein the tracks and grooves of the rotary device and the hollow space all having smooth rounded corners.

3. The manual rotary brush according to claim 1, further including the rotary device having a plurality of circular rotating rings that each of the rings is rotated independently from other rings.

4. The manual rotary brush according to claim 1, further including an arched overhang is formed around top edge of the hollow space of the brush head.

5. A manual rotary brush comprising:

a handle, a brush head having a hollow space, a tuft of bristles mounted onto a rotary device, the rotary device is set within the hollow space of the brush head with the handle orientation forming a rotary brush;

the rotary device comprising an outer circle having a convex form;

the hollow space comprising an inner circular wall having a concave form; and

wherein the convex form of the outer circle of the rotary device is constructed to match the concave form of the inner circular wall of the hollow space, and the convex form of the rotary device is set within the concave form of the hollow space, therefore allowing the rotary device to rotate within the hollow space thereby creating a circular rotation of the tuft of the bristles upon moving the brush handle.

6. The manual rotary brush according to claim 5, further including the rotary device having a plurality of circular rotating rings that each of the rings is rotated independently from other rings.

7. The manual rotary brush according to claim 5, further including an arched overhang is formed around top edge of the hollow space of the brush head.

8. A manual rotary brush comprising:

a handle, a brish head having a hollow space, the hollow space having a top edge, a tuft of bristles mounted onto a rotary device, the rotary device is set within the hollow space of the brush head with the handle orientation forming a rotary brush;

the rotary device comprising an outer circle;

the hollow space comprising an inner circular wall;

wherein the outer circle of the rotary device is configured to match with the inner circular wall of the hollow space of the brush head, and the outer circle of the rotary device is set to match the inner circular wall of the hollow space of the brush head, therefore allowing the rotary device to rotate within the hollow space thereby creating a circular rotation of the tuft of the bristles upon moving the brush handle; and

an overhang which is formed around the top edge of the hollow space of the brush head.

9. The manual rotary brush according to claim 8, further including the rotary device having a plurality of circular rotating rings that each of the rings is rotated independently from other rings.

10. The manual rotary brush according to claim 8 wherein matching means is a convex form of the outer circle the rotary device matches with a concave form of the inner circular wall of the hollow space of the brush head.

11. The manual rotary brush according to claim 8 wherein the matching means are tracks configuration of the outer circle of the rotary device matches with grooves configuration of the inner circular wall of the hollow space, and the grooves configuration of the outer circle of the rotary device matches with the tracks configuration of the inner circular wall of the hollow space of the brush head.