Patent US4237570A successfully refreshed from Google Patents.
US4237570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power brush apparatus
Assignee: Individual
•
Filing: 1979-08-10
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Granted: 1980-12-09
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Expires: 1999-08-10
Abstract
Abstract A power brush apparatus for use in cleaning airplanes or the like which includes an elongate hollow handle with a drive member coaxially mounted and journaled within the hollow handle and which drive member is connected at one end to a drive motor in a driving connection and at the opposite end to a stub shaft arranged in a housing at an angle of about 45° with respect to the longitudinal length of the handle and a brush of the rotatable type is secured for rotation to the terminal end of the stub shaft.
Inventors
- 👤 W. B. Brock, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:01
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
192 words
A power brush apparatus comprising, in combination, an elongate hollow handle having an inner end and an outer end, an elongate drive member having a first end and a second end and including spaced bearing members within said handle, an air operated drive motor including a drive shaft in coaxial relation with said drive member at the inner end of the handle, an adapter interconnecting the inner end and the motor, drive pin connector means interconnecting the drive member and drive shaft at the first end, an angled housing at the outer end of the handle including a proximal zone, a distal zone, and an intermediate angled zone, a fitting interconnecting the handle to the housing, a rotatable member in the proximal zone of said housing, a stub shaft rotatably mounted in the distal zone of said housing, bevel gears interconnecting the stub shaft and the rotatable member at said intermediate angled zone, and means interconnecting the rotatable member with said drive member, and thrust bearing means with the housing for the stub shaft and the rotatable member, and a rotatable brush removably secured to the terminal end of said stub shaft.
Claim 2
Dependent Claim
192 words
A power brush apparatus comprising, in combination, an elongate hollow handle having an inner end and an outer end, an elongate drive member having a first end and a second end and including spaced bearing members within said handle, an air operated drive motor including a drive shaft in coaxial relation with said drive member at the inner end of the handle, an adapter interconnecting the inner end and the motor, drive pin connector means interconnecting the drive member and drive shaft at the first end, an angled housing at the outer end of the handle including a proximal zone, a distal zone, and an intermediate angled zone, a fitting interconnecting the handle to the housing, a rotatable member in the proximal zone of said housing, a stub shaft rotatably mounted in the distal zone of said housing, bevel gears interconnecting the stub shaft and the rotatable member at said intermediate angled zone, and means interconnecting the rotatable member with said drive member, and thrust bearing means with the housing for the stub shaft and the rotatable member, and a rotatable brush removably secured to the terminal end of said stub shaft.
Claim 3
Dependent Claim
25 words
The device as set forth in claim 1 wherein annular cap means are provided about said stub shaft closing the distal zone of the housing.
Claim 4
Dependent Claim
38 words
The device as set forth in claim 1 wherein said rotatable brush comprises a brush head and means securing the brush head to the terminal end of the stub shaft, said brush head including removable bristle carrying means.
Claim 5
Dependent Claim
40 words
The device as set forth in claim 3 wherein said brush head includes a threaded sleeve on said brush head coaxial therewith and said stub shaft is threaded and said threaded stub shaft is in threaded engagement with said sleeve.
Claim 6
Dependent Claim
24 words
The device as set forth in claim 1 wherein the angle subtended by the distal and proximal zone of said housing is about 45°.
Claim 7
Dependent Claim
31 words
The device as set forth in claim 1 wherein said proximal and distal zones of said housing include shoulder means and said thrust bearing means are in engagement with said shoulders.
Claim 8
Dependent Claim
42 words
The device as set forth in claim 1 wherein said spaced bearing members comprise annular nylon bearing members at spaced intervals along and within said handle and said drive member comprises an elongate member of cylindrical form rotatable in said bearing members.
Claim 9
Dependent Claim
17 words
The device as set forth in claim 1 wherein handle means are provided exteriorly on said handle.
Claim 10
Dependent Claim
26 words
The device as set forth in claim 8 wherein said handle means comprises a split ring about said handle and means to tighten said split ring.
Claim 11
Dependent Claim
17 words
The device as set forth in claim 9 wherein said split ring includes laterally extending handle means.
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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |