Patent US4916814A successfully refreshed from Google Patents.
US4916814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet-shave razor
Assignee: Edgewell Personal Care Brands LLC
•
Filing: 1987-12-30
•
Granted: 1990-04-17
•
Expires: 2007-12-30
Abstract
Abstract A wet shave turret razor assembly includes a razor head and single or double blades. The razor head is mounted at the front end of a handle. Several blades are uniformly mounted along the periphery of a blade holder. The blade holder is attached to the razor head by a rotation spindle. The blades are pivotable about an axis. The edges of the blades are parallel to the axis. Further, the blade holder in conjunction with the blades is rotatable by a knob. The knob is located in the axis and mounted on the blade holder for snapping the blades into the shaving position. To improve razor handling, the rotary knob is telescopable. The blade holder is provided with a hood and a thread enclosure.
Inventors
- 👤 Wolfgang Althaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:25
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/4006; B26B21/08; B26B21/14; B26B21/24
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
135 words
A razor assembly comprising: a handle; a blade holder rotatably mounted on said handle for rotation about an axis; a plurality of blades mounted around the periphery of said blade holder and having edges generally parallel to said axis; and actuator means mounted on said blade holder for rotating said blade holder relative to said handle, said actuator means including a portion having a shape which is grippable and movable by the user's fingers in a substantially unrestricted manner in a direction generally parallel to said axis between a first position proximate to said blade holder for shaving and a second position extended from but engaged with said blade holder for facilitating rotation of said actuator means and said blade holder relative to said handle by rotation of the actuator means with the user's fingers.
Claim 2
Dependent Claim
135 words
A razor assembly comprising: a handle; a blade holder rotatably mounted on said handle for rotation about an axis; a plurality of blades mounted around the periphery of said blade holder and having edges generally parallel to said axis; and actuator means mounted on said blade holder for rotating said blade holder relative to said handle, said actuator means including a portion having a shape which is grippable and movable by the user's fingers in a substantially unrestricted manner in a direction generally parallel to said axis between a first position proximate to said blade holder for shaving and a second position extended from but engaged with said blade holder for facilitating rotation of said actuator means and said blade holder relative to said handle by rotation of the actuator means with the user's fingers.
Claim 3
Dependent Claim
30 words
The razor assembly of claim 1 wherein the blade holder includes a bore and the handle includes a cantilevered spindle receivable in the bore for rotationally supporting said blade holder.
Claim 4
Dependent Claim
49 words
The razor assembly of claim 2 further comprising a dispenser for receiving said blade holders, said dispenser having a plurality of housing ducts for receiving said blade holders, said blade holders being retrievable upon positioning the razor head only in one specific direction relative to each of said ducts.
Claim 5
Dependent Claim
52 words
The razor assembly of claim 3, wherein said ducts are socket-like and include an aperture at one end for receiving said blade holders along said axis and including at least one offset flange around said duct aperture to prevent insertion of the razor head in a direction other than said specific direction.
Claim 6
Dependent Claim
16 words
The razor assembly of claim 4 wherein said ducts include a sidewall forming an elastic strip.
Claim 7
Dependent Claim
58 words
The razor assembly of claim 2, wherein said bore has a polygonal cross section forming recesses in the bore, and further including spring means projecting from said rotation spindle for engaging the recesses in said bore, orienting said blade holder relative to said rotation spindle, and resisting rotational movement of said blade holder relative to said rotation spindle.
Claim 8
Dependent Claim
44 words
The razor assembly of claim 1 including a hood having an axially extending chamber for receiving said blade holder and including means manually engageable with said blade holder for selectively restraining said blade holder for removing and attaching said blade holder from said handle.
Claim 9
Dependent Claim
29 words
The razor assembly of claim 7, wherein said manually engagable means comprises a detent-beak operable by finger pressure into engagement with a corresponding clearance located in said blade holder.
Claim 10
Dependent Claim
64 words
The razor assembly of claim 1 wherein said actuator means includes an actuation rod with a knob on one end, and said blade holder includes a bore extending parallel to said axis for slidably receiving the other end of said actuation rod, said other end of said actuation rod including stop means for preventing rotation of the actuator rod relative to the blade holder.
Claim 11
Dependent Claim
33 words
The razor assembly of claim 1 wherein said knob means includes an actuation rod with a knob on one end, said knob having a conically shaped surface which diverges from said blade holder.
Claim 12
Dependent Claim
30 words
The razor assembly of claim 1 further comprising a thread covering a portion of the blade holder and blades for protecting the user against injuries from the blades while shaving.
Claim 13
Dependent Claim
24 words
The razor assembly of claim 10 wherein said thread is formed of a metal wire consisting of one of copper, silver or stainless steel.
Claim 14
Dependent Claim
31 words
The razor assembly of claim 10, wherein said thread is formed of a plastic fiber consisting of one of polyamide, polyethylene, polystyrene, vinylidene-vinyl-chloride copolymer, acrylonitrile copolymer, rubber-elastic polyurethane and polyterephthalic-acid ester.
Claim 15
Dependent Claim
17 words
The razor assembly of claim 10 wherein said thread has a diameter of less than 0.1 mm.
Claim 16
Dependent Claim
24 words
The razor assembly of claim 10 wherein at least one of said blade holder and said blades includes clearances for receiving of said thread.
Claim 17
Dependent Claim
18 words
The razor assembly of claim 10 wherein said blades are formed of a corrosion-free material comprising stainless steel.
Claim 18
Dependent Claim
11 words
The razor assembly of claim 10 wherein said blades are hardened.
Claim 19
Dependent Claim
23 words
The razor assembly of claim 10 wherein the edges of the blades are coated with a high-grade metal, consisting of chromium with PTFE.
Claim 20
Dependent Claim
33 words
The razor assembly of claim 11 wherein said thread has a friction reducing lubricating coating made of a water-soluble polymer consisting of one of polyethylene oxide, polyvinyl pyrrolidone, methyl cellulose and polyvinyl methylene-ether.
Claim 21
Dependent Claim
31 words
The razor assembly of claim 11 wherein said thread has a friction reducing lubricating coating made of a hygroscopic water-insoluble material consisting of one of polyvinyl alcohol fibers and polyurethane-polyvinyl interpolymer.
References Cited (Backward Citations)
CH202023A
Cited
US2352813A
Cited
US2636263A
Cited
US2565062A
Cited
DE1204106B
Cited
US3412464A
Cited
US3420341A
Cited
US3505734A
Cited
DE1909989A1
Cited
DE1949400A1
Cited
US3619900A
Cited
US3648365A
Cited
US3722091A
Cited
US4034892A
Cited
US4090638A
Cited
US4094066A
Cited
EP0025117A1
Cited
GB2066107A
Cited
FR2496536A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |