US4336650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting unit for a shaving apparatus
Assignee: US Philips Corp
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Filing: 1980-11-17
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Granted: 1982-06-29
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Expires: 2000-11-17
Abstract
Abstract There is provided a shaving apparatus having a circular shear plate and a cutting unit rotatable relative to the shear plate. The cutting unit comprises a cutting member having cutters extending toward the shear plate and a lead-cutting element having lead cutters extending toward the shear plate and respectively associated with and movable relative to the cutters away from and toward the shear plate. Each lead cutter, with reference to the direction of rotation of the cutting unit, is positioned in front of its associated cutter. A spacer is interposed between each cutter and its associated lead cutter.
Inventors
- 👤 Willem K. Gorter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:50
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/14; B26B19/145; B26B19/141; B26B19/38; B26B19/42
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A shaving apparatus having a circular shear plate provided with hair-entrance apertures and a cutting unit associated with and rotatable relative to the shear plate; said cutting unit comprising a cutting member having a circular central body, cutters extending from the circumference of said central body toward the shear plate, a lead-cutting element having a circular central portion, lead cutters extending from the circumference of said central portion toward the shear plate and respectively associated with and movable relative to the cutters away from and toward the shear plate, each lead cutter, with reference to the direction of rotation of the cutting unit, being positioned in front of its associated cutter, and a spacer interposed between each cutter and its associated lead cutter.
Claim 2
Dependent Claim
123 words
A shaving apparatus having a circular shear plate provided with hair-entrance apertures and a cutting unit associated with and rotatable relative to the shear plate; said cutting unit comprising a cutting member having a circular central body, cutters extending from the circumference of said central body toward the shear plate, a lead-cutting element having a circular central portion, lead cutters extending from the circumference of said central portion toward the shear plate and respectively associated with and movable relative to the cutters away from and toward the shear plate, each lead cutter, with reference to the direction of rotation of the cutting unit, being positioned in front of its associated cutter, and a spacer interposed between each cutter and its associated lead cutter.
Claim 3
Dependent Claim
24 words
A shaving apparatus according to claim 1, in which each spacer terminates short of the corresponding ends of its associated cutter and lead cutter.
Claim 4
Dependent Claim
23 words
A shaving apparatus according to claim 1, in which each spacer extends to the corresponding ends of its associated cutter and lead cutter.
Claim 5
Dependent Claim
30 words
A shaving apparatus according to claim 2 or 3, in which each spacer is movable relative to its associated cutter, the associated lead cutter being movable relative to said spacer.
Claim 6
Dependent Claim
29 words
A shaving apparatus according to claim 2 or 3, in which each spacer is secured to its associated cutter, the associated lead cutter being movable relative to said spacer.
Claim 7
Dependent Claim
29 words
A shaving apparatus according to claim 2 or 3, in which each spacer is secured to its associated lead cutter, said spacer being movable relative to the associated cutter.
Claim 8
Dependent Claim
46 words
A shaving apparatus according to claim 2 or 3, which includes a spacing element having a circular central section, the spacers extending from the circumference of said central section toward the shear plate, said spacing element being interposed between the cutting member and the lead-cutting element.
References Cited (Backward Citations)
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US4258470A
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Cited
US4272884A
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US4275497A
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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) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |