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Patent US3924277A successfully refreshed from Google Patents.
US4866844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Razor head assembly
Assignee: Warner Lambert Co LLC
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Filing: 1988-03-11
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Granted: 1989-09-19
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Expires: 2008-03-11
Abstract
Abstract According to this invention a means of staking is provided in which a portion of the stake near the bottom is subjected to shearing and cold-forming to form a skirt. The skirt provides a locking assembly for the component parts of the razor head without chamfering the area around the receiving orifices. The locking is also done without the possibility of bending, deforming or shattering the individual stakes themselves.
Inventors
- 👤 Charles J. Burout, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:23
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/10; B26B21/40; B26B21/4068; B26B21/14; B26B21/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
237 words
A razor head comprising: a seat having an inner surface and an outer surface; a cap positioned in spaced relation from said seat, said cap having an inner surface and an outer surface; at least one blade sandwiched between said inner surface of said seat and said inner surface of said cap, each said blade having a plurality of first apertures extending therethrough; one of said seat and cap having a plurality of second apertures extending therethrough and in alignment with said first apertures of each said blade; the other of said seat and cap having a plurality of pins extending therefrom through said first apertures of each said blade and through said second apertures, each said pin having a proximal end at which said pin is secured to said other of said seat and cap and a distal, free end; at least some of said pins having a skirt formed thereabout at a position spaced from each said distal end so as to define a shaft portion between said skirt and said distal end, said skirt and said shaft portion each having a radial dimension and the radial dimension of said shaft portion being less than the radial dimension of said skirt, and said skirt being formed to extend toward the outer surface of said one of said seat and cap so as to secure together said seat, said cap and said at least one blade.
Claim 2
Dependent Claim
237 words
A razor head comprising: a seat having an inner surface and an outer surface; a cap positioned in spaced relation from said seat, said cap having an inner surface and an outer surface; at least one blade sandwiched between said inner surface of said seat and said inner surface of said cap, each said blade having a plurality of first apertures extending therethrough; one of said seat and cap having a plurality of second apertures extending therethrough and in alignment with said first apertures of each said blade; the other of said seat and cap having a plurality of pins extending therefrom through said first apertures of each said blade and through said second apertures, each said pin having a proximal end at which said pin is secured to said other of said seat and cap and a distal, free end; at least some of said pins having a skirt formed thereabout at a position spaced from each said distal end so as to define a shaft portion between said skirt and said distal end, said skirt and said shaft portion each having a radial dimension and the radial dimension of said shaft portion being less than the radial dimension of said skirt, and said skirt being formed to extend toward the outer surface of said one of said seat and cap so as to secure together said seat, said cap and said at least one blade.
Claim 3
Dependent Claim
39 words
A razor head according to claim 1; wherein said razor head has a transverse center, there are four of said pins, and two of said pins are disposed symmetrically on each side of said center of said razor head.
Claim 4
Dependent Claim
26 words
A razor head according to claim 2; wherein there are two outermost ones of said pins, and said two outermost pins have said skirts formed thereabout.
Claim 5
Dependent Claim
17 words
A razor head according to claim 1; wherein all of said pins have said skirts formed thereabout.
Claim 6
Dependent Claim
29 words
A razor head according to claim 1; wherein each of said pins extends from the inner surface of said cap, and said second apertures are formed in said seat.
Claim 7
Dependent Claim
47 words
A razor head according to claim 1; wherein at least some of said pins each have a necked-in portion between said proximal end and said skirt thereof, and at least some of said second apertures have a chamfered area which receives said necked-in portion of said pins.
References Cited (Backward Citations)
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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) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |