US4900316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum skin cleaner
Assignee: NISSHIN ELECTRIC ENGINEERING & WORKS Co Ltd
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Filing: 1987-10-16
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Granted: 1990-02-13
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Expires: 2007-10-16
Abstract
Abstract A vacuum skin cleaner includes a negative pressure generator and an applicator cap, wherein the negative pressure generator has an internal venturi water passage and a suction passage. One end of the water passage of the negative pressure generator is connected to a tap water faucet and has a discharge opening at its other end. The suction passage communicates with a throat of the venturi water passage, and the applicator cap communicates with the suction passage and has a mouth opening for making contact with the human skin.
Inventors
- 👤 Masuo Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
A; A61; A61H; A61H7/00; A61H9/00; A61H9/005; A61H9/0057; A61B; A61B17/00; A61B2017/00743; A61B2017/00747; A61H2201/00; A61H2201/16; A61H2201/1683; A61H2201/1685
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
179 words
A vacuum skin cleaner comprising: a negative pressure generator having an internal water passage and a suction passage; said water passage being connected at one end to a tap water faucet and having a discharge opening at the other end; said water passage having a cross-sectionally reduced intermediate portion; said suction passage communicating with said intermediate portion; an applicator cap communicating with said suction passage and having an opening mouth for contact with human skin; and a mounting attachment for removably connecting said negative pressure generator to said faucet; said mounting attachment including, a first annular seal interposed between said mounting attachment and said faucet, a second annular seal interposed between said mounting attachment and said negative pressure generator, an upper portion removably fixed to said faucet by a plurality of radially extending set screws, and a lower portion removably fitted into said negative pressure generator, said lower portion being formed with an annular projection; and a releasable lock mechanism positioned between aid mounting attachment and said negative pressure generator to engage with and disengage from said annular projection.
Claim 2
Dependent Claim
179 words
A vacuum skin cleaner comprising: a negative pressure generator having an internal water passage and a suction passage; said water passage being connected at one end to a tap water faucet and having a discharge opening at the other end; said water passage having a cross-sectionally reduced intermediate portion; said suction passage communicating with said intermediate portion; an applicator cap communicating with said suction passage and having an opening mouth for contact with human skin; and a mounting attachment for removably connecting said negative pressure generator to said faucet; said mounting attachment including, a first annular seal interposed between said mounting attachment and said faucet, a second annular seal interposed between said mounting attachment and said negative pressure generator, an upper portion removably fixed to said faucet by a plurality of radially extending set screws, and a lower portion removably fitted into said negative pressure generator, said lower portion being formed with an annular projection; and a releasable lock mechanism positioned between aid mounting attachment and said negative pressure generator to engage with and disengage from said annular projection.
Claim 3
Dependent Claim
35 words
The vacuum skin cleaner as defined in claim 1, wherein said lock mechanism comprises spring-based engaging elements which are radially movable for engagement with and disengagement from said annular projection of said attachment lower portion.
Claim 4
Dependent Claim
110 words
A vacuum skin cleaner comprising: a negative pressure generator having an internal water passage and a suction passage; said water passage being connected at one end to a tap water faucet and having a discharge opening at the other end; said water passage having a cross-sectionally reduced intermediate portion; said suction passage communicating with said intermediate portion; and an applicator cap communicating with said suction passage and having an opening mouth for contact with the human skin; said water passage of said negative pressure generator is provided, at a position upstream from said cross-sectionally reduced intermediate portion, with a flow rectifying member means for imparting a whirling motion to water.
Claim 5
Dependent Claim
110 words
A vacuum skin cleaner comprising: a negative pressure generator having an internal water passage and a suction passage; said water passage being connected at one end to a tap water faucet and having a discharge opening at the other end; said water passage having a cross-sectionally reduced intermediate portion; said suction passage communicating with said intermediate portion; and an applicator cap communicating with said suction passage and having an opening mouth for contact with the human skin; said water passage of said negative pressure generator is provided, at a position upstream from said cross-sectionally reduced intermediate portion, with a flow rectifying member means for imparting a whirling motion to water.
Claim 6
Dependent Claim
51 words
The vacuum skin cleaner as defined in claim 3, wherein said negative pressure generator is removably connected to said faucet by means of a mounting attachment, a first annular seal is interposed between said attachment and said faucet, and a second annular seal is interposed between said attachment and said generator.
Claim 7
Dependent Claim
46 words
The vacuum skin cleaner as defined in claim 4, wherein said mounting attachment has an upper portion removably fixed to said faucet by a plurality of radially extending set screws, and said mounting attachment further has a lower portion removably fitted into said negative pressure generator.
Claim 8
Dependent Claim
47 words
The vacuum skin cleaner as defined in claim 5, wherein said lower portion of said mounting attachment is formed with an annular projection, and a releasable lock mechanism is provided between said attachment and said negative pressure generator to engage with and disengage from said annular projection.
Claim 9
Dependent Claim
24 words
The vacuum skin cleaner as defined in claim 3, wherein said negative pressure generator is connected to said faucet by means of a hose.
Claim 10
Dependent Claim
38 words
The vacuum skin cleaner as defined in claim 3, wherein said water passage is in the form of a venturi passage progressively increasing in cross section from a venturi throat at which said cross-sectionally reduced portion is located.
Claim 11
Dependent Claim
35 words
The vacuum skin cleaner as claimed in claim 3, wherein said grip member is formed with a recess located at the position of said vacuum relief port for facilitation closing of aid vacuum relief port.
Claim 12
Dependent Claim
34 words
The vacuum skin cleaner as claimed in claim 3, wherein said grip member has a tapered mounting hole, and said applicator cap has a tapered mounting projection detachably fitted into said tapered mounting hole.
Claim 13
Dependent Claim
24 words
The vacuum skin cleaner as defined in claim 3, wherein said applicator cap is connected to said suction passage by means of a hose.
Claim 14
Dependent Claim
28 words
The vacuum skin cleaner as defined in claim 11, wherein said applicator cap is exchangeably mounted to a grip member having an air passage communicating with said hose.
Claim 15
Dependent Claim
26 words
The vacuum skin cleaner as defined in claim 12, wherein said grip member is formed with a closable vacuum relief port communicating with said air passage.
Claim 16
Dependent Claim
29 words
The vacuum skin cleaner as defined in claim 3, wherein said discharge opening of said water passage is connected to a detachable washing attachment by means of a hose.
Claim 17
Dependent Claim
35 words
The vacuum skin cleaner as defined in claim 3, wherein said lock mechanism comprises spring-biased engaging elements which are radially movable for engagement with and disengagement from said annular projection of said attachment lower portion.
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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) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |