Anti-electrostatic brush

• US 4,797,966 A
• Filed: 06/19/1987
• Issued: 01/17/1989
• Est. Priority Date: 06/02/1987
• Status: Expired due to Fees

• Current Assignee: Tong-Fong Brush Factory Co., Ltd.
• Original Assignee: Tong-Fong Brush Factory Co., Ltd.
• Inventors: Fong, James C.
• Primary Examiner(s): Feldman, Peter
• Application Number:
  US07/063,890
• Time in Patent Office: 578 Days
• Field of Search: 15/1.5 R, 15/1.5 A, 15/159 R, 15/159 A, 15/186, 15/187, 15/188, 132/11 R, 132/85, 361/221
• US Class Current: 15/186
• CPC Class Codes: A46B 15/0002 Arrangements for enhancing monitoring or controlling the brushing process
• CPC Class Codes: A46B 15/002 with a means for removing or creating static electricity
• CPC Class Codes: A46B 2200/104 Hair brush bristles arrangements for hair brushes A46B9/023
• CPC Class Codes: A46B 7/00 Bristle carriers arranged in the brush body

Abstract

An anti-electrostatic brush comprising handle means (1,3:1'"'"', 3'"'"') leading to receiving means for bristle support means (2,2'"'"') with said support means being located in the receiving means and having bristles (21, 21'"'"') extending therefrom, characterized in that the bristle support means (2,2'"'"') is electrically conductive and has an extension portion (22'"'"') or extension portions (22) extending towards the handle means (1,3:1'"'"', 3'"'"') and to a region (23, 23'"'"') where said portion(s) will be contacted by the hand of a user during normal brushing operations.

Claims

1. An anti-electrostatic brush comprising:

an electrically conductive bristle receiving means receiving a plurality of bristles thereon, said bristle receiving means being provided with a contact part;

a first housing part having a first opening at one end thereof and a first handle portion at the other end thereof, said first opening being slightly smaller than said bristle receiving means, said first housing part being provided with a first engagement means; and

a second housing part having a means for receiving said bristle receiving means at one end thereof and a second handle portion at the other end thereof, said second housing part being provided with a second engagement means to be engaged with said first engagement means securing the first and second housing parts together, wherein at least one of first and second housing parts has a second opening at the handle portion thereof, through which second opening said contact part of said bristle receiving means is exposed to the surface of said handle portion.

2. A brush as claimed in claim 1, in which the bristle receiving means is made of electrically conductive material or has such material incorporated therein or applied to the surface thereof.

3. A brush as claimed in claim 2, in which the bristle receiving means has an extension portion or portions including electrically conductive material to conduct electrical current from the bristles to the contact part.

4. A brush as claimed in claim 1, in which the bristle receiving means is made of flexible material which is adapted to be electrically conductive.

5. A brush as claimed in claim 1, in which the contact part has an electrically conductive facing portion formed thereon or an electrically conductive facing member applied thereto.

6. A brush as claimed in claim 1, in which the first opening has side walls converging towards the outside of the brush and the bristle receiving means has a portion seatable therein and a rim to retain such in position.

7. A brush as claimed in claim 6, in which each housing part has aligned projections which abut when assembled to provide reinforcement.

8. A brush as claimed in claim 7, in which the housing parts in the end of the handle portions have recesses partially defined by cross portions.

9. A brush as claimed in claim 3, in which said extension portion or portions extend to the contact part as a continuous extension of the bristle receiving means.

10. A brush as claimed in claim 3, in which one extension portion extends towards the handle and is disposed in electrically conductive relationship with an electrically conductive insert which extends to the region of hand contact for discharge purposes.

11. A brush as claimed in claim 10, in which the insert is of greater thickness than the bristle receiving means.

12. A brush as claimed in claim 11, in which the insert member is shaped to substantially fill the neck cross section region of the interior of the brush and stop members prevent the insert member falling into the handle portion.

13. A brush as claimed in claim 10, in which a projection extends from the first housing part into an aperture in said one extension portion to facilitate location.

14. An anti-electrostatic brush comprising:

a first brush bristle housing, having an indented groove at the front and having in the handle a square indented channel, at which edges are protruding, corresponding elongate pieces to serve as reinfocements and a opening, when viewed from above, with inside tapered angle provided near the indented groove;

a flexible brush bristle carrying part comprising a brush bristle implanted piece with a plurality of brush bristles and a connecting piece that have electrically conductive materials added to conduct the current from the brush bristles to a contact unit, and to secure the brush bristle planting part to the opening at the said brush bristles;

a second housing having an indented groove on the brush bristle piece, a square indented channel and protruding posts, a rectangular flange and a pair of identical elongate pieces, corresponding to the above, all catched and snapped into position, so that the electrically conductive contact unit(s) is located at the two sides of the brush neck.

15. An anti-electrostatic brush, comprising:

a first brush housing part with its front having a protruding post that serves as a catch, on the handle portion is a rectangular indented groove and near which are two corresponding elongate pieces that serve as reinforcement, and near the protruding post is an opening of inward inclination and at which centre is a stop piece that serves as a stop;

a flexible brush bristle part including a bristle carrying portion with a plurality of bristles implanted therein with said bristle part being secured at the opening of the first housing part, a combined connecting portion being snapped into position at the stop piece of the housing and the combined bristle implanted portion and the connecting portions have current conductible materials added thereto;

a second housing part, with corresponding protruding post on the rectangular indented groove, square flange, and a pair of identical elongated pieces which are snapped into position and secured;

a fixing rubber insert having current conductible materials included in its interior and on two sides of which are conductible contact units to secure it inside the housing and snapped by the elongated pieces, so the contact unit is located at two sides of the brush neck, and combined electrically with the brush bristles in series connection.