Patent US4219931A successfully refreshed from Google Patents.
US4219931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum hair trimmer
Assignee: Individual
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Filing: 1979-01-02
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Granted: 1980-09-02
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Expires: 1999-01-02
Abstract
Abstract A self-contained vacuum hair trimmer containing an electric motor for driving a fan within a handle, as well as hair trimmer means at one end of such handle. A bag is attached to the other end of such handle to collect the so-trimmed hair which is driven into the bag by such fan on account of the vacuum created in the handle behind the trimmer. An adjustable nozzle is mounted on the handle for gauging the length of the hair being trimmed.
Inventors
- 👤 Silvano Vacilotto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:39
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/38; B26B19/44
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
237 words
A portable, self-contained vacuum hair trimmer comprising a tubular portion providing a hollow handle adapted to be held by an operator, a motor mounted in said tubular portion, a hair cutting means at one end of said tubular portion adapted to be driven by said motor, a fan in said tubular portion also adapted to be driven by said motor and generate a vacuum in said tubular portion adjacent said hair cutting means so as to draw hair cuttings through said handle, a nozzle mounted at said one end over said hair cutting means, and said nozzle being in the form of a cap having sidewalls and an open end, said open end being adapted to contact the head of a person whose hair is to be cut, said nozzle providing a closed air path from said open end thereof to said tubular portion to ensure a maximum vacuum at said open end, said cap further being axially displaceable relative to said cutting means to gauge the length of hair left after cutting, a porous bag having a mouth detachably connected to the other end of said tubular portion to collect hair trimmings drawn therethrough, the mouth of said bag comprising a resilient cylinder which is squeezed into an annular recess at said other end of said tubular portion, and a bulbous plastic casing containing said bag, having windows for the exit of air from the bag.
Claim 2
Dependent Claim
237 words
A portable, self-contained vacuum hair trimmer comprising a tubular portion providing a hollow handle adapted to be held by an operator, a motor mounted in said tubular portion, a hair cutting means at one end of said tubular portion adapted to be driven by said motor, a fan in said tubular portion also adapted to be driven by said motor and generate a vacuum in said tubular portion adjacent said hair cutting means so as to draw hair cuttings through said handle, a nozzle mounted at said one end over said hair cutting means, and said nozzle being in the form of a cap having sidewalls and an open end, said open end being adapted to contact the head of a person whose hair is to be cut, said nozzle providing a closed air path from said open end thereof to said tubular portion to ensure a maximum vacuum at said open end, said cap further being axially displaceable relative to said cutting means to gauge the length of hair left after cutting, a porous bag having a mouth detachably connected to the other end of said tubular portion to collect hair trimmings drawn therethrough, the mouth of said bag comprising a resilient cylinder which is squeezed into an annular recess at said other end of said tubular portion, and a bulbous plastic casing containing said bag, having windows for the exit of air from the bag.
Claim 3
Dependent Claim
18 words
A portable, self-contained vacuum hair trimmer as defined by claim 1, in which said cap is screw-threadably mounted.
Claim 4
Dependent Claim
25 words
A portable, self-contained vacuum hair-trimmer as defined by claim 5, in which said cap is mounted on a sleeve projecting from within said tubular portion.
Claim 5
Dependent Claim
27 words
A portable, self-contained vacuum hair-trimmer as defined by claim 1, wherein said resilient cylinder is squeezed into said annular recess by a sleeve portion of said casing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-02 | 1984-03-03 | 1984-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-02 | 1988-03-03 | 1988-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-02 | 1992-03-03 | 1992-09-02 | $7700.00 | Window Closed / Lapsed |