Patent US4255776A successfully refreshed from Google Patents.
US4255776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for neutralizing electrostatic charges and for removing dust from various objects
Assignee: Individual
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Filing: 1979-03-20
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Granted: 1981-03-10
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Expires: 1999-03-20
Abstract
Abstract Disclosed herein is an apparatus for neutralizing electrostatic charges and for removing dust from various objects, comprising a trough shaped member fixed to a handle inside which a piezoelectric transducer is housed, the latter being connected electrically to an electrode located inside the trough shaped member and actuated by a pushbutton that protrudes from the handle.
Inventors
- 👤 Paolo Cantelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:55
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
158 words
An apparatus for neutralizing electrostatic charges and for removing dust from various objects, the apparatus comprising: a hollow handle inside which a piezoelectric transducer is housed; a pushbutton which protrudes from said handle and is coupled to said piezoelectric transducer to set said piezoelectric transducer in operation; a head having an opening carried by said handle and which is to contact objects to be cleaned; and at least one metal electrode connected electrically to said piezoelectric transducer, carried centrally inside said head and turned towards said opening therein; and wherein said opening in said head (D, 3, 27) is sealed at least in part by a plate (I, 11, 44) made of high dielectric constant material, said plate being disposed near and spaced from said electrode covering same and at least partially closing said opening in said head, whereby the head can be placed against an object to be cleaned without discharge from the electrode to the object.
Claim 2
Independent Claim
158 words
An apparatus for neutralizing electrostatic charges and for removing dust from various objects, the apparatus comprising: a hollow handle inside which a piezoelectric transducer is housed; a pushbutton which protrudes from said handle and is coupled to said piezoelectric transducer to set said piezoelectric transducer in operation; a head having an opening carried by said handle and which is to contact objects to be cleaned; and at least one metal electrode connected electrically to said piezoelectric transducer, carried centrally inside said head and turned towards said opening therein; and wherein said opening in said head (D, 3, 27) is sealed at least in part by a plate (I, 11, 44) made of high dielectric constant material, said plate being disposed near and spaced from said electrode covering same and at least partially closing said opening in said head, whereby the head can be placed against an object to be cleaned without discharge from the electrode to the object.
Claim 3
Dependent Claim
44 words
An apparatus according to claim 1, wherein said plate (I, 11, 44) lies in a plane displaced towards the base of said head (D, 3, 27) with respect to an edge thereof which is to come in contact with an object to be cleaned.
Claim 4
Dependent Claim
64 words
An apparatus according to claim 1, wherein a plane in which said plate (I, 11, 44) lies at a given level as a plane tangential to an edge of said head, said head being a trough-shaped member (D, 3, 27), an edge of the latter being provided with spacers (LM, 10, 42) which are to come in contact with an object to be cleaned.
Claim 5
Dependent Claim
27 words
An apparatus according to claim 3, wherein said spacers are constituted by a continuous soft facing (L, 10) mounted on said edge of said head (D, 3).
Claim 6
Dependent Claim
15 words
An apparatus according to claim 3, wherein said spacers are constituted by individual interspaced members.
Claim 7
Dependent Claim
14 words
An apparatus according to claim 5, wherein said spacers are constituted by rollers (M).
Claim 8
Dependent Claim
37 words
An apparatus according to claim 4, wherein said continuous soft facing (L, 10) mounted on said edge of said head (D, 3) is of a nature such as to also constitute means for mechanically removing the dust.
Claim 9
Dependent Claim
33 words
An apparatus according to claim 7, destined to clean gramophone records, wherein said means for mechanically removing dust are constituted by a strip of velvet (L, 10) whereby gramophone records may be cleaned.
Claim 10
Dependent Claim
38 words
An apparatus according to claim 1, wherein to clean the scalp, an essential feature of which is that said spacer which constitute means for mechanically removing dust comprise at least one comb (42) whereby scalps may be cleaned.
Claim 11
Dependent Claim
86 words
An apparatus according to claim 9, wherein said head is a trough-shaped member (27) positioned on an extension to said handle (26), wherein said at least one comb is two combs (42), one opposite the other, fixed to opposite edges of said opening in said trough-shaped member (27), in an axial direction; and wherein said plate comprises a high dielectric constant plate (44) placed between opposite edges of said opening in said trough-shaped member (27) in the region of the base of said two combs (42).
Claim 12
Dependent Claim
38 words
An apparatus according to claim 1 or claim 2, wherein said plate (I, 11, 44) is detachably fixed in the region of at least one part of an edge of said opening in said head (D, 3, 27).
Claim 13
Dependent Claim
33 words
An apparatus according to claim 1 or claim 2, wherein said head (D, 3, and 27) is detachably fixed to said handle (E, 2, 26) which houses said piezoelectric transducer (G, 6, 30).
Claim 14
Dependent Claim
32 words
An apparatus according to claim 1 or claim 2, wherein said pushbutton (H, 7, 34) is operatively positioned and arranged so that the apparatus is grounded at times it is manually operated.
Claim 15
Dependent Claim
18 words
An apparatus according to claim 13, wherein said pushbutton (H, 7, 34) is made of electrically conductive material.
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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) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |