IP Library Granted Patent US 11,254,022
Granted Patent B1
US 11,254,022 · App. 17/228,627 · Granted Feb 22, 2022

Razor exposure

Inventor: Gideon Hooberman (Marina Del Rey, CA)
Assignee: Personal Care Marketing and Research, Inc.
B26B21/227B26B21/4031
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Quick Facts
Patent No.
US 11,254,022
App. No.
17/228,627
Granted
Feb 22, 2022
Kind
B1
Abstract

Disclosed here are shaving razor systems and methods including razor cartridges with a unitary frame having a length and width, a topside and an underside, wherein the unitary frame includes angled joints or bends connecting at least three guards running lengthwise on the unitary frame, the guards separated by at least three gaps in the frame, and at least three blades, affixed to the underside of the guards of the unitary frame, wherein the at least three blades include edges, and wherein the blade edges extend into the gaps in the frame when affixed to the underside of the guards of the unitary frame.

Claims (40)

1. A shaving razor, comprising:

a cartridge housing, when in an upright position, having a length and a width, a topside and an underside,

wherein the cartridge housing includes a cap generally across the length of a first side of the topside and a guard generally across the length of a second side of the topside,

wherein the cartridge housing includes at least two substantially flat blades in the cartridge housing generally across the length of the housing between the cap and the guard, and generally parallel to the cap and the guard, each of the at least two blades including a blade edge,

wherein exposure is measured for each of the at least two blade edges against a first and second parallel imaginary exposure reference line drawn across the top side of the cartridge width from the cap to the guard, and

wherein exposure of a first blade of the at least two blades is different at the first imaginary exposure reference line of the two locations along the length of the cartridge, from the second imaginary exposure reference line of the two locations along the length of the cartridge,

wherein exposure of a second blade of the at least two blades is different at the first imaginary exposure reference line of the two locations along the length of the cartridge, from the exposure of the first blade of the at least two blades at the first imaginary exposure reference line of the two locations.

2. The shaving razor system of claim 1 wherein, the at least two blades mounted into the cartridge housing is with a unitary frame.

3. The shaving razor system of claim 1 wherein, the at least two blades mounted into the cartridge housing is by individual razor supports.

4. The shaving razor system of claim 1 wherein, the cap is made of a lubricious material.

5. The shaving razor system of claim 1 wherein, the cap does not have a uniform flat surface.

6. The shaving razor system of claim 1 wherein, the guard includes ridges.

7. The shaving razor system of claim 1 wherein, the blades are coated in PTFE.

8. A shaving razor, comprising:

a cartridge housing, when in an upright position, having a length and a width, a topside and an underside,

wherein the cartridge housing includes a cap generally across the length of a first side of the topside and a guard generally across the length of a second side of the topside,

wherein the cartridge housing includes at least three substantially flat blades in the cartridge housing generally across the length of the housing between the cap and the guard, and generally parallel to the cap and the guard, each of the at least three blades including a blade edge,

wherein exposure is measured for each of the at least three blade edges against a first and second parallel imaginary exposure reference line drawn across the top side of the cartridge width from the cap to the guard, and

wherein exposure of a first blade of the at least three blades is different at the first imaginary exposure reference line of the two locations along the length of the cartridge, from the second imaginary exposure reference line of the two locations along the length of the cartridge,

wherein exposure of a second blade of the at least three blades is different at the first imaginary exposure reference line of the two locations along the length of the cartridge, from the exposure of the first blade of the at least two blades at the first imaginary exposure reference line of the two locations, and

wherein exposure of the third blade of the at least three blades is different at the first imaginary exposure reference line of the two locations along the length of the cartridge, from the second imaginary exposure reference line of the two locations along the length of the cartridge.

9. The shaving razor system of claim 8 wherein, the at least two blades mounted into the cartridge housing is with a unitary frame.

10. The shaving razor system of claim 8 wherein, the at least three blades mounted into the cartridge housing is by individual razor supports.

11. The shaving razor system of claim 10 wherein, the cap is made of a lubricious material.

12. The shaving razor system of claim 11 wherein, the cap does not have a uniform flat surface.

13. The shaving razor system of claim 10 wherein, the guard includes ridges.

14. The shaving razor system of claim 8 wherein, the blades are coated in PTFE.

15. A shaving razor, comprising:

a cartridge housing, when in an upright position, having a length and a width, a topside and an underside,

wherein the cartridge housing includes a cap generally across the length of a first side of the topside and a guard generally across the length of a second side of the topside,

wherein the cartridge housing includes at least three substantially flat blades in the cartridge housing generally across the length of the housing between the cap and the guard, and generally parallel to the cap and the guard, each of the at least three blades including a blade edge,

wherein exposure is measured for each of the at least three blade edges against a first and second parallel imaginary exposure reference line drawn across the top side of the cartridge width from the cap to the guard, and

wherein exposure of a first blade of the at least three blades is different at the first imaginary exposure reference line of the two locations along the length of the cartridge, from exposure of a second of the two imaginary exposure reference line locations along the length of the cartridge,

wherein exposure of a second blade of the at least three blades is different at the first imaginary exposure reference line of the two locations along the length of the cartridge, from the second imaginary exposure reference line of the two locations, and

wherein exposure of a third blade of the at least three blades is different at the first imaginary exposure reference line of the two locations along the length of the cartridge, from the exposure of the first blade of the at least two blades at the first imaginary exposure reference line of the two locations, and different from the second imaginary exposure reference line of the two locations.

16. The shaving razor system of claim 15 wherein, the at least three substantially flat blades is four substantially flat blades.

17. The shaving razor system of claim 15 wherein, the at least three substantially flat blades is six substantially flat blades.

18. The shaving razor system of claim 15 wherein, the at least three blades mounted into the cartridge housing is by individual razor supports.

19. The shaving razor system of claim 18 wherein, the cap is made of a lubricious material.

20. The shaving razor system of claim 19 wherein, the cap does not have a uniform flat surface.

Assignments (3)
SECURITY INTEREST Recorded Nov 6, 2023
From: DOLLAR SHAVE CLUB, INC.
To: GATEWAY PERSONAL CARE INVESTMENT, LLC
Reel/Frame 065470/0739 →
MERGER Recorded Feb 10, 2022
From: PERSONAL CARE MARKETING AND RESEARCH, INC.
To: DOLLAR SHAVE CLUB, INC.
Reel/Frame 058985/0067 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2021
From: HOOBERMAN, GIDEON
To: PERSONAL CARE MARKETING AND RESEARCH, INC.
Reel/Frame 055896/0907 →
Continuity (1)
Continuation 17099681 · Nov 16, 2020
Cited By (1)
US 12,678,984