US4238882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reservoir safety razor
Assignee: Individual
•
Filing: 1979-09-26
•
Granted: 1980-12-16
•
Expires: 1999-09-26
Abstract
Abstract A reservoir safety razor including a handle attached to a body portion which includes a large transparent reservoir opening away from the handle and closed by a head which supports a razor blade held in place by a cap member, the reservoir being filled through a tube extending from an open end near the handle into the reservoir and ending near the head, the head having a valve which can automatically close the tube when the reservoir is properly filled and having capillary-size ports leading from the surfaces of the head adjacent the reservoir to the surfaces of the razor blade which overlie the ports.
Inventors
- 👤 Jack R. Harrison, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:26
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/44; B26B21/446
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
207 words
A reservoir safety razor of the type including a handle and a body portion attached to the handle and operative to contain a shaving liquid and to support a razor blade oriented crosswise of the handle, said body portion comprising: a reservoir fixed at one end to the handle and having an opening extending across the other end of the reservoir and oriented crosswise of the handle; a filling tube in the reservoir passing through said one end thereof alongside the handle and extending substantially to and facing toward said opening; a head removeably attachable to said reservoir to close said opening, the head having outer surfaces oriented crosswise of the handle and supporting said blade in operative shaving position, the head having multiple capillary-size ports extending from the reservoir through said outer surfaces and into communication with surfaces of the blade which overlie the ports; a cap supported by the head and overlying the blade to urge it toward said outer surface; and valve means supported by the head and moveable toward and away from the filling tube, the valve means being buoyant in the saving liquid so that it tends to close the filling tube when the razor is held with its handle extending upwardly.
Claim 2
Dependent Claim
207 words
A reservoir safety razor of the type including a handle and a body portion attached to the handle and operative to contain a shaving liquid and to support a razor blade oriented crosswise of the handle, said body portion comprising: a reservoir fixed at one end to the handle and having an opening extending across the other end of the reservoir and oriented crosswise of the handle; a filling tube in the reservoir passing through said one end thereof alongside the handle and extending substantially to and facing toward said opening; a head removeably attachable to said reservoir to close said opening, the head having outer surfaces oriented crosswise of the handle and supporting said blade in operative shaving position, the head having multiple capillary-size ports extending from the reservoir through said outer surfaces and into communication with surfaces of the blade which overlie the ports; a cap supported by the head and overlying the blade to urge it toward said outer surface; and valve means supported by the head and moveable toward and away from the filling tube, the valve means being buoyant in the saving liquid so that it tends to close the filling tube when the razor is held with its handle extending upwardly.
Claim 3
Dependent Claim
52 words
A razor as claimed in claim 1, wherein said head has an inner surface facing toward the opening of the reservoir and has a series of waffle-like depressions each coinciding with the location of a port to retain shaving liquid at the corresponding ports when the razor is tipped sideways during shaving.
Claim 4
Dependent Claim
37 words
A razor as claimed in claim 1, wherein said outer surfaces of the head are inclined with respect to a plane disposed normal to the handle, said cap urging the blade toward contact with said outer surfaces.
Claim 5
Dependent Claim
23 words
A razor as claimed in claim 3, wherein said ports pass through said outer surfaces near the cutting edges of the razor blade.
Claim 6
Dependent Claim
86 words
A razor as claimed in claim 1, wherein said valve means comprises a stem attached to the head and oriented to extend into the filling tube when the head is attached to the reservoir; and a valve disc having a central hole therethrough receiving said stem, the disc being of a diameter to close the tube when urged thereagainst by gravity when the razor handle is downwardly oriented and to close the tube by flotation on the shaving liquid when the razor handle is upwardly oriented.
Claim 7
Dependent Claim
40 words
A razor as claimed in claim 1, wherein the reservoir has a duct extending through said one end of the reservoir adjacent the handle, the diameter of the duct being sufficient to pass air but insufficient to pass shaving liquid.
Claim 8
Dependent Claim
16 words
A razor as claimed in claim 1, wherein said reservoir is made of a transparent material.
Claim 9
Dependent Claim
31 words
A razor as claimed in claim 1, wherein the reservoir has a flange extending around its opening, said head being shaped to mate with the flange and be frictionally secured thereto.
Claim 10
Dependent Claim
56 words
A razor as claimed in claim 1, wherein said razor blade is a standard double-edge blade, said opening in the reservoir approximating the length and width dimensions of the blade and the depth dimension of the reservoir as measured from the opening toward the handle being within a range falling between said length and width dimensions.
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) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |