Electric appliance for personal care
US-2018311841-A1 · Nov 1, 2018 · US
Oscillatory shaver
US9770835B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9770835-B2 |
| Application number | US-34841309-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 5, 2009 |
| Priority date | Jul 5, 2006 |
| Publication date | Sep 26, 2017 |
| Grant date | Sep 26, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A shaving unit for a dry shaver includes at least one outer cutter and one under cutter. Driven by a motor, the outer cutter and the under cutter are movable relative to each other in an oscillatory motion. The under cutter and the outer cutter, which are biased into relative engagement by at least one spring, slide along a common contact surface. The spring is arranged in such a way that its biasing force always acts at an angle to the direction of oscillation.
First claim
Opening claim text (preview).
What is claimed is: 1. A dry shaver comprising a housing; a motor accommodated within the housing; and a cutter unit comprising an outer cutter and an associated under cutter, at least one of which is movable relative to the other in an oscillatory motion, in which sliding contact is established between the under cutter and outer cutter along facing contact surfaces; and two springs biasing the facing contact surfaces into engagement, the two springs arranged such that throughout the oscillatory motion, the springs produce a biasing force with a first force component acting along the oscillatory motion and a second force component acting perpendicular to the oscillatory motion, wherein the cutter unit is operably connected to the motor to establish the oscillatory motion, and further, wherein the outer cutter is fastened in a frame and each of the two springs has one end that bears against the under cutter and another end that bears against the frame, and wherein the frame, biased by an elastic element, is configured to slide within the housing. 2. The shaving unit of claim 1 , wherein the under cutter comprises an engagement surface for adjustment of the spring seat. 3. The shaving unit of claim 1 , wherein the two springs comprise a compression springs. 4. The shaving unit of claim 1 , wherein the outer cutter is a shaving foil. 5. The shaving unit of claim 1 , wherein the outer cutter comprises a comb of a long-hair trimmer. 6. The dry shaver of claim 1 , wherein the elastic element has a spring rate lower than a spring rate of the springs.
Assignees
Inventors
Classifications
- B26B19/048Primary
Complete cutting head being movable · CPC title
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Frequently asked questions
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- What does patent US9770835B2 cover?
- A shaving unit for a dry shaver includes at least one outer cutter and one under cutter. Driven by a motor, the outer cutter and the under cutter are movable relative to each other in an oscillatory motion. The under cutter and the outer cutter, which are biased into relative engagement by at least one spring, slide along a common contact surface. The spring is arranged in such a way that its b…
- Who is the assignee on this patent?
- Eichhorn Reinhold, Gleich Detlef, Junk Peter, and 9 more
- What technology area does this patent fall under?
- Primary CPC classification B26B19/048. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 26 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).