US4152828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Razor having variable angle and tilt of its blade
Assignee: Individual
•
Filing: 1978-03-29
•
Granted: 1979-05-08
•
Expires: 1998-03-29
Abstract
Abstract A razor comprises a handle and a blade holder supporting at least one razor blade. To employ the blade for a slicing action in addition to the shearing one, an off-center universal joint connects the blade holder to the handle of the razor; a leaf spring attached at one end to the handle and atits free end abuts against the center member of the movable joint and against the blade holder which thus automatically resumes a neutral or normal shaving position. The angle of attack of the blade can be adjusted simply by twisting the handle and the blade, and the universal joint at the same time tilts the blade holder to follow the contour of the face.
Inventors
- 👤 Lloyd W. Lund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:52
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/22; B26B21/222; B26B21/225
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
146 words
A razor including a handle and an elongated blade holder with at least one razor blade longitudinally extending substantially parallel to the longitudinal direction of said holder, comprising in combination: a universal joint having an outer fork firmly connected to one end of said handle, a tiltable central joint member tiltably supported in said outer fork for swinging movement about a first axis, an inner fork firmly connected to said blade holder, said inner fork with the blade holder being tiltably supported in said tiltable central joint member for swinging movement about a second axis, said second axis defining an angle of less than ninety (90°) degrees with said blade holder and extending above said first axis, and disposed in a plane substantially perpendicular to said first axis, and positioning means for resiliency urging said central member and said blade holder to a neutral shaving position.
Claim 2
Dependent Claim
146 words
A razor including a handle and an elongated blade holder with at least one razor blade longitudinally extending substantially parallel to the longitudinal direction of said holder, comprising in combination: a universal joint having an outer fork firmly connected to one end of said handle, a tiltable central joint member tiltably supported in said outer fork for swinging movement about a first axis, an inner fork firmly connected to said blade holder, said inner fork with the blade holder being tiltably supported in said tiltable central joint member for swinging movement about a second axis, said second axis defining an angle of less than ninety (90°) degrees with said blade holder and extending above said first axis, and disposed in a plane substantially perpendicular to said first axis, and positioning means for resiliency urging said central member and said blade holder to a neutral shaving position.
Claim 3
Dependent Claim
21 words
A razor as defined in claim 1, wherein said first axis extends through a marginal part of said central joint member.
Claim 4
Dependent Claim
22 words
A razor as defined in claim 2, wherein said second axis extends substantially through a central portion of said central joint member.
Claim 5
Dependent Claim
18 words
A razor as defined in claim 3, wherein said first axis extends substantially parallel to the blade holder.
Claim 6
Dependent Claim
160 words
A razor including a handle and an elongated blade holder with at least one razor blade longitudinally extending substantially parallel to the longitudinal direction of said holder, comprising in combination a universal joint having an outer fork firmly connected to one end of said handle, a titltable central joint member tiltably supported in said outer fork for swinging movement about a first axis, an inner fork firmly connected to said blade holder, said inner fork with the blade holder being tiltably supported in said tiltable central joint member for swinging movement about a second axis, extending above said first axis, and disposed in a plane substantially perpendicular to said first axis, and positioning means for resiliently urging said central member and said blade holder to a neutral shaving position, wherein said positioning means includes a spring secured at one end thereof to said handle and abutting with its free end portion against the central joint member and said blade holder.
Claim 7
Dependent Claim
160 words
A razor including a handle and an elongated blade holder with at least one razor blade longitudinally extending substantially parallel to the longitudinal direction of said holder, comprising in combination a universal joint having an outer fork firmly connected to one end of said handle, a titltable central joint member tiltably supported in said outer fork for swinging movement about a first axis, an inner fork firmly connected to said blade holder, said inner fork with the blade holder being tiltably supported in said tiltable central joint member for swinging movement about a second axis, extending above said first axis, and disposed in a plane substantially perpendicular to said first axis, and positioning means for resiliently urging said central member and said blade holder to a neutral shaving position, wherein said positioning means includes a spring secured at one end thereof to said handle and abutting with its free end portion against the central joint member and said blade holder.
Claim 8
Dependent Claim
58 words
A razor as defined in claim 5, wherein said free end portion of said spring is provided with a convex bulge having a straight bottom portion, said central joint member having a correspondingly concave recess for receiving said convex bulge, and said blade holder having a flat area in contact with the straight bottom portion of said bulge.
Claim 9
Dependent Claim
32 words
A razor as defined in claim 1, wherein one prong of said inner fork is longer than the other, thereby providing for said angle of said second axis with said blade holder.
Claim 10
Dependent Claim
38 words
A razor as defined in claim 7, wherein the top surface of said blade holder has a depression in the area between the prongs of said inner fork for accommodating said outer fork and said central joint member.
Claim 11
Dependent Claim
36 words
A razor as defined in claim 7, wherein a first pin means are disposed along at least a portion of said first axis and pass through aligned holes in said first fork and said central member.
Claim 12
Dependent Claim
37 words
A razor as defined in claim 9, wherein a second pin means are disposed along at least a portion of said second axis and pass through aligned holes in said second fork and said central joint member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |