Patent US4370807A successfully refreshed from Google Patents.
US4370807A
Expired / Lapsed
US
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Water-powered, rotary head shaver
Assignee: Individual
•
Filing: 1979-11-26
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Granted: 1983-02-01
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Expires: 1999-11-26
Abstract
Abstract A water-powered, rotary head shaver is provided which includes a housing having a hollow shaving head portion defining an interior chamber and having at least one opening and at least one water outlet port formed therein and a hollow handle defining an interior channel which communicates with the chamber of the shaving head portion and which has a water inlet port formed therein. A rotary head grill is mounted within the opening of the shaving head portion and a drive shaft is rotatably mounted within the chamber of the shaving head portion. An impeller having a plurality of vanes is mounted on the shaft and a rotary cutting head is coupled to the shaft for rotation therewith and is disposed adjacent to the shaving head grill plate for cooperative shearing engagement therewith upon rotation. The rotation of the cutting head is effected upon the introduction of water under pressure through the water inlet port and the channel of the handle portion, following which it impinges upon the vanes of the impeller causing rotation thereof and the drive shaft, and in turn, the cutting head.
Inventors
- 👤 Charles R. O'Neill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:02
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/38; B26B19/44
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
313 words
A water-powered, rotary head shaver, comprising: a housing including a hollow shaving head portion defining an interior chamber which is divided into a front chamber segment and a rear chamber segment by an intermediate wall, said front chamber segment being subdivided into a circular central chamber and an outer annular chamber by an annular wall, said intermediate wall having at least one water discharge port formed therein which establishes communication between said rear chamber segment and said outer annular chamber and said shaving head portion having a multiplicity of holes formed therein which serve as water discharge openings and which communicate with said outer annular chamber; said shaving head portion also having at least one opening communicating with said central chamber and a hollow handle portion defining an interior channel which communicates with said rear chamber segment and which has a water inlet port formed therein which opens into said interior channel; a rotary head grill mounted within said opening of said shaving head portion; a drive shaft rotatably mounted within said chamber of said shaving head portion; an impeller having a plurality of vanes mounted on said shaft and disposed in said rear chamber segment; a rotary cutting head coupled to said shaft for rotation therewith and disposed in said central chamber adjacent to said rotary head grill for cooperative shearing engagement therewith upon rotation thereof, said rotation of said cutting head being effected upon the introduction of water under pressure through said water inlet port of said handle portion and said channel of said handle portion, following which it impinges upon the vanes of said impeller causing rotation thereof, and said drive shaft and, in turn, said cutting head, said water thereafter discharging through said water discharge port into said outer annular channel from which it is discharged from the shaver through said multiplicity of holes in said shaving head portion.
Claim 2
Dependent Claim
313 words
A water-powered, rotary head shaver, comprising: a housing including a hollow shaving head portion defining an interior chamber which is divided into a front chamber segment and a rear chamber segment by an intermediate wall, said front chamber segment being subdivided into a circular central chamber and an outer annular chamber by an annular wall, said intermediate wall having at least one water discharge port formed therein which establishes communication between said rear chamber segment and said outer annular chamber and said shaving head portion having a multiplicity of holes formed therein which serve as water discharge openings and which communicate with said outer annular chamber; said shaving head portion also having at least one opening communicating with said central chamber and a hollow handle portion defining an interior channel which communicates with said rear chamber segment and which has a water inlet port formed therein which opens into said interior channel; a rotary head grill mounted within said opening of said shaving head portion; a drive shaft rotatably mounted within said chamber of said shaving head portion; an impeller having a plurality of vanes mounted on said shaft and disposed in said rear chamber segment; a rotary cutting head coupled to said shaft for rotation therewith and disposed in said central chamber adjacent to said rotary head grill for cooperative shearing engagement therewith upon rotation thereof, said rotation of said cutting head being effected upon the introduction of water under pressure through said water inlet port of said handle portion and said channel of said handle portion, following which it impinges upon the vanes of said impeller causing rotation thereof, and said drive shaft and, in turn, said cutting head, said water thereafter discharging through said water discharge port into said outer annular channel from which it is discharged from the shaver through said multiplicity of holes in said shaving head portion.
Claim 3
Dependent Claim
70 words
The shaver according to claim 1, wherein said shaving head portion generally has a cylindrical shape and comprises an annular front wall and a circular rear wall which are joined together by a generally cylindrical sidewall, wherein said annular front wall surrounds said opening communicating with said central chamber and wherein said multiplicity of holes are formed in said front wall and are arranged in a radially spaced-apart annular pattern.
Claim 4
Dependent Claim
300 words
A water-powered, rotary head shaver, comprising: a housing including a hollow generally cylindrical shaving head portion defining an interior chamber which is divided into a front chamber segment and an axially-spaced rear chamber segment separated by an intermediate wall, said shaving head portion having at least one opening communicating with said front chamber segment and at least one water outlet port communicating with said rear chamber segment, said housing also having an elongated, generally cylindrical hollow handle portion securely directed adjacent to said shaving head portion which handle portion defines an interior channel which communicates at one end with said rear chamber segment and which handle portion has a water inlet port formed therein which opens into the other end of said interior channel, said handle portion having an axis which is disposed generally normally to the axis of said shaving head portion; a rotary head grill mounted within said opening of said shaving head portion and disposed generally normally to the longitudinal axis of said shaving head portion; a drive shaft rotatably mounted within said interior chamber of said shaving head portion and disposed generally parallel to the longitudinal axis of said shaving head portion; an impeller having a plurality of vanes mounted on said shaft and disposed in said rear chamber segment; a rotary cutting head coupled to said shaft for rotation therewith and disposed in said front chamber segment adjacent to said rotary head grill for cooperative shearing engagement therewith upon rotation thereof, said rotation of said cutting head being effected upon the introduction of water under pressure through said water inlet port of said handle portion and said channel of said handle portion, following which it impinges upon the vanes of said impeller causing rotation thereof and said drive shaft and, in turn, said cutting head.
Claim 5
Dependent Claim
300 words
A water-powered, rotary head shaver, comprising: a housing including a hollow generally cylindrical shaving head portion defining an interior chamber which is divided into a front chamber segment and an axially-spaced rear chamber segment separated by an intermediate wall, said shaving head portion having at least one opening communicating with said front chamber segment and at least one water outlet port communicating with said rear chamber segment, said housing also having an elongated, generally cylindrical hollow handle portion securely directed adjacent to said shaving head portion which handle portion defines an interior channel which communicates at one end with said rear chamber segment and which handle portion has a water inlet port formed therein which opens into the other end of said interior channel, said handle portion having an axis which is disposed generally normally to the axis of said shaving head portion; a rotary head grill mounted within said opening of said shaving head portion and disposed generally normally to the longitudinal axis of said shaving head portion; a drive shaft rotatably mounted within said interior chamber of said shaving head portion and disposed generally parallel to the longitudinal axis of said shaving head portion; an impeller having a plurality of vanes mounted on said shaft and disposed in said rear chamber segment; a rotary cutting head coupled to said shaft for rotation therewith and disposed in said front chamber segment adjacent to said rotary head grill for cooperative shearing engagement therewith upon rotation thereof, said rotation of said cutting head being effected upon the introduction of water under pressure through said water inlet port of said handle portion and said channel of said handle portion, following which it impinges upon the vanes of said impeller causing rotation thereof and said drive shaft and, in turn, said cutting head.
Claim 6
Dependent Claim
33 words
The shaver according to claim 1 or 3, additionally including valve means coupled to said handle portion for permitting and restricting, respectively, the passage of water through said channel of said handle portion.
Claim 7
Dependent Claim
88 words
The shaver according to claim 4, wherein said valve means comprises a two-walled partition formed within and extending across said channel of said handle portion, said partition having an opening extending therethrough, and a valve plate having an opening therethrough slidably mounted between said walls of said partition for movement between an open position, in which said opening thereof is aligned with the opening of said partition, and a closed position, in which said opening thereof is in a non-aligned position relative to the opening of the partition.
Claim 8
Dependent Claim
53 words
The shaver according to claim 5, wherein said valve means additionally includes a spring-loaded trigger having a first end which is pivotably mounted on an exterior surface of said handle portion and a second opposite end which is coupled to said valve plate for effecting movement thereof between said open and closed positions.
Claim 9
Dependent Claim
21 words
The shaver according to claim 1 or 3, additionally including a hose secured to said inlet port of said handle portion.
Claim 10
Dependent Claim
51 words
The shaver according to claim 1 or 3, wherein said channel of said handle portion has a constriction formed therein in the vicinity of said interior chamber of the shaving head portion which is dimensioned and configured to direct water flowing therethrough at an angle to said vanes of said impeller.
Claim 11
Dependent Claim
34 words
The shaver according to claim 1 or 3, wherein said rotary head grill has a generally circular configuration and is threadably secured within said opening of said shaving head portion to facilitate removal thereof.
Claim 12
Dependent Claim
15 words
The shaver according to claim 1 or 3, wherein said cutting head is spring loaded.
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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) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |