IP Library Granted Patent US 8,739,411
Granted Patent B2
US 8,739,411 · App. 12/284,550 · Granted Jun 3, 2014

Back hair removal using comb and integrated blade

Inventors: Iain Kinghorn (Chicago, IL); Matthew J Dryfhout (Orland Park, IL)
Assignees: Matt Dryfhout; Iain Kinghorn
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Quick Facts
Patent No.
US 8,739,411
App. No.
12/284,550
Granted
Jun 3, 2014
Kind
B2
Abstract

A method and apparatus of removing hair from the back, shoulders and arms of a man utilizes a device comprising a comb having teeth on a lower end and a blade embedded in the teeth so that a lower active edge of the blade does not reach a lower edge of the teeth and a s result there is no exposed blade and no skin irritation or safety concerns. A rigid or semi-rigid one-piece elongated handle, a proximal end of the handle having a channel shaped to slidably receive the upper end of the comb, the proximal end also having a lever pressing against the comb to hold the comb securely to the proximal end of the handle, the lever capable of being bent to release the comb. The device has a center of gravity approximately one-third of the way down the handle from the proximal end of the handle.

Claims (19)

1. A hair removal device comprising:

at least one blade with a cutting edge;

an elongate handle having an upper end, a bottom end, and a longitudinal axis, the upper end defining a channel extending substantially perpendicular to the longitudinal axis and a flexible lever movable from a rest position where the lever is in the channel and a flexed position where the lever is moved outside of the channel;

a comb having a body and a projection, the body having an upper portion, a bottom edge defining a plurality of teeth, a blade holding portion, and a skin engaging surface opposite the blade holding portion;

wherein the plurality of teeth are in communication with the blade holding portion and the skin engaging surface;

wherein the projection is attached to the upper portion and extends perpendicular to the body;

wherein the blade holding portion is configured to hold the at least one blade in a position where the cutting edge is immediately adjacent to the plurality of teeth and where the plurality of teeth extend a distance beyond the cutting edge of the at least one blade;

the projection of the comb is received in the channel of the handle wherein the lever abuts the projection when the lever is in the rest position and is spaced from the projection when the lever is in the flexed position; and

wherein the at least one blade is in-between the body of the comb and the handle and the skin engaging portion and the plurality of teeth engage a user during use.

2. The hair removal device of claim 1 , wherein the handle is one-piece.

3. The hair removal device of claim 1 , wherein the handle is rigid or semi-rigid plastic.

4. The hair removal device of claim 1 , wherein the at least one blade is at least two blades each with cutting edges.

5. The hair removal device of claim 1 , wherein the at least one blade is three blades each with cutting edges.

6. The hair removal device of claim 1 , wherein each of the plurality of teeth are rounded.

7. The hair removal device of claim 1 , wherein a distance the plurality of teeth extend beyond the cutting edge is between approximately 0.02 inches and approximately 0.05 inches.

8. The hair removal device of claim 7 , wherein the distance the plurality of teeth extend beyond the cutting edge is approximately 0.033 inches.

9. The hair removal device of claim 1 , wherein the at least one blade is approximately 0.004 inches in thickness.

10. The hair removal device of claim 1 , wherein the handle is curved.

11. The hair removal device of claim 1 , wherein when the projection of the comb is received in the channel, the body and the at least one blade are both substantially parallel to at least a portion of the handle.

Assignments (10)
COURT ORDER Recorded Jul 29, 2025
From: BAKBLADE LIMITED
To: DRYFHOUT ENTERPRISES, LLC; DRYFHOUT PROPERTIES, LLC; DRYFHOUT, MATTHEW, MR.; DRYFHOUT, ANGELINA, MRS.
Reel/Frame 071897/0182 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2025
From: DRYFHOUT ENTERPRISES, LLC; DRYFHOUT, MATTHEW, MR.; DRYFHOUT, ANGELINA
To: DRYFHOUT PROPERTIES, LLC
Reel/Frame 071947/0085 →
LIEN Recorded May 22, 2025
From: BAKBLADE LIMITED
To: DRYFHOUT ENTERPRISES, LLC; DRYFHOUT PROPERTIES, LLC; DRYFHOUT, MATTHEW, MR.; DRYFHOUT, ANGELINA, MRS.
Reel/Frame 071355/0338 →
LIEN Recorded Feb 6, 2025
From: BAKBLADE LIMITED
To: DRYFHOUT ENTERPRISES, LLC; DRYFHOUT PROPERTIES, LLC; DRYFHOUT, MATTHEW, MR.; DRYFHOUT, ANGELINA, MRS.
Reel/Frame 070140/0887 →
LIEN Recorded Oct 7, 2024
From: BAKBLADE LIMITED
To: DRYFHOUT ENTERPRISES, LLC; DRYFHOUT PROPERTIES, LLC; DRYFHOUT, MATTHEW, MR.; DRYFHOUT, ANGELINA, MRS.
Reel/Frame 068818/0343 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 23, 2022
From: DRYFHOUT, MATTHEW; DRYFHOUT, ANGELINA; DRYFHOUT ENTERPRISES LLC; DRYFHOUT PROPERTIES LLC
To: BAKBLADE LIMITED
Reel/Frame 061864/0258 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 22, 2021
From: DRYFHOUT, MATTHEW J.
To: DRYFHOUT PROPERTIES, LLC
Reel/Frame 057882/0980 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 22, 2021
From: KINGHORN, IAIN
To: DRYFHOUT PROPERTIES, LLC
Reel/Frame 057883/0015 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2019
From: DRYFHOUT ENTERPRISES, LLC
To: DRYFHOUT PROPERTIES, LLC
Reel/Frame 048578/0026 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 23, 2015
From: DRYFHOUT, MATTHEW; KINGHORN, IAIN
To: DRYFHOUT ENTERPRISES, LLC
Reel/Frame 035187/0065 →
Continuity (1)
Related Publication 20100071214A1 · Mar 25, 2010