IP Library Granted Patent US 7,155,828
Granted Patent B2
US 7,155,828 · App. 10/936,077 · Granted Jan 2, 2007

Razor having deformable shaving aid ejection system and method of ejecting shaving aid

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,155,828
App. No.
10/936,077
Granted
Jan 2, 2007
Kind
B2
Abstract

A shaving aid delivery system for a shaving system includes a razor head having a resilient reservoir for holding a shaving aid and a piezoelectric ceramic disposed adjacent the resilient reservoir. The delivery system also includes a shaving strip disposed within the razor head, an actuator and an ejection port. The shaving strip is oriented to engage the skin of a user during a shaving stroke and the actuator electrically couples to the piezoelectric ceramic such that, upon activation, the actuator causes deformation of the piezoelectric ceramic which, in turn, deforms the resilient reservoir and forces the shaving aid from the reservoir through the ejection port. Alternatively, the actuator may include a shape memory alloy which, upon transformation between states, deforms the reservoir and forces the shaving aid from the reservoir through the ejection port.

Claims (12)

1. A shaving aid delivery system for a shaving system, comprising:

a razor head having a base for supporting at least one razor blade and at least one reservoir for holding a shaving aid, said at least one razor blade including a cutting edge along a skin engaging surface of said razor head, said reservoir having at least one resilient portion, and said reservoir being located within said razor head;

a deformable element disposed adjacent to said resilient portion of said reservoir;

an ejection port for issuing said shaving aid from said reservoir to said skin engaging surface of said razor head; and

an electrically activated actuator coupled to said deformable element for initiating deformation of said deformable element which, in turn, deforms said resilient portion of said reservoir and forces said shaving aid from said reservoir through said ejection port.

2. A shaving aid delivery system according to claim 1 further comprising a shaving strip disposed on said skin engaging surface of said razor head and oriented to engage the skin of a user during a shaving stroke.

3. A shaving aid delivery system according to claim 2 further comprising a plurality of ejection ports disposed across said razor head, each of said ejection ports for directing said shaving aid from said reservoir into contact with a portion of said shaving strip upon activation of said actuator.

4. A shaving aid delivery system according to claim 1 wherein said razor head is selectively engageable with a razor handle.

5. A shaving aid delivery system according to claim 3 wherein said activator is affixed to said razor handle.

6. A shaving aid delivery system according to claim 1 wherein said razor head is integral with a razor handle.

7. A shaving aid delivery system according to claim 1 further comprising a plurality of ejection ports disposed across said razor head.

8. A shaving aid delivery system according to claim 1 wherein said shaving aid is selected from the group consisting of: silicone oils, Aloe Vera compounds, medicinal agents, cosmetic agents, essential oils, vitamin oils, sunflower oils, sesame oils, Jojoba oils, Allantoin, sodium pymvates, polyethylene oxides, non-ionic polyacrylamides, polysaccharides, sodium lauryl suiphates, polystyrene compounds and polypropylene compounds, Dimenthicone, Alcohol Beuzoates, Glycerin, Cety Alcohol, and Steryl Alcohol.

Assignments (6)
SECURITY AGREEMENT Recorded Apr 8, 2020
From: EDGEWELL PERSONAL CARE BRANDS, LLC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 052341/0735 →
CHANGE OF NAME Recorded Mar 30, 2020
From: EVEREADY BATTERY COMPANY, INC
To: EVEREADY BATTERY COMPANY, LLC
Reel/Frame 052262/0489 →
CHANGE OF NAME Recorded Mar 30, 2020
From: EVEREADY BATTERY COMPANY, LLC
To: EDGEWELL PERSONAL CARE BRANDS, LLC
Reel/Frame 052263/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 22, 2005
From: WARNER-LAMBERT COMPANY LLC
To: EVEREADY BATTERY COMPANY, INC.
Reel/Frame 016170/0615 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2005
From: GUIMONT, RAYMOND; SWANSON, MATTHEW; TAO, YE
To: EVEREADY BATTERY COMPANY, INC.
Reel/Frame 016137/0262 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2005
From: LIU, HAO-CHIH
To: WARNER-LAMBERT COMPANY
Reel/Frame 016137/0343 →