Patent US5010441A successfully refreshed from Google Patents.
US5010441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grounding brush
Assignee: Bosch Corp
•
Filing: 1990-01-24
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Granted: 1991-04-23
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Expires: 2010-01-24
Abstract
Abstract A device which electrically grounds a rotating shaft. A brush is mounted removably on the rotating shaft. The brush has conductive fibers extending outwardly over a portion thereof. As the shaft rotates, the conductive fibers of the brush periodically contact an electrically grounded member to electrically ground the shaft.
Inventors
- 👤 Elizabeth D. Fox
- 👤 Alan G. Schlageter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:15
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
36 words
A device for electrically conductive rotating shaft, including: an electrically grounded member; electrically conductive means, mounted removably on the shaft and rotating therewith to periodically contact said grounded member, for periodically electrically grounding the rotating shaft.
Claim 2
Independent Claim
36 words
A device for electrically conductive rotating shaft, including: an electrically grounded member; electrically conductive means, mounted removably on the shaft and rotating therewith to periodically contact said grounded member, for periodically electrically grounding the rotating shaft.
Claim 3
Dependent Claim
68 words
A device according to claim 1, wherein said grounding means includes: an electrically conductive support member adapted to be mounted removably on the shaft to rotate in unison therewith; and a multiplicity of electrically conductive fibers secured to said support member and extending outwardly therefrom, said fibers being of a length such that the free end thereof periodically contacts said grounded member during the rotation of the shaft.
Claim 4
Dependent Claim
20 words
A device according to claim 2, wherein said support member is adapted to be mounted slidably on the rotating shaft.
Claim 5
Dependent Claim
17 words
A device according to claim 3, wherein said support member is frictionally secured to the rotating shaft.
Claim 6
Dependent Claim
25 words
A device according to claim 4, wherein said support member is configured in the shape of an arch and being made from a resilient material.
Claim 7
Dependent Claim
49 words
An electrophotographic printing machine of the type having a device for electrically grounding at least one rotating shaft employed therein, including an electrically grounded member; electrically conductive means, mounted removably on the shaft and rotating therewith to periodically contact said grounded member, for periodically electrically grounding the rotating shaft.
Claim 8
Dependent Claim
49 words
An electrophotographic printing machine of the type having a device for electrically grounding at least one rotating shaft employed therein, including an electrically grounded member; electrically conductive means, mounted removably on the shaft and rotating therewith to periodically contact said grounded member, for periodically electrically grounding the rotating shaft.
Claim 9
Dependent Claim
69 words
A printing machine according to claim 6, wherein said conductive means includes: an electrically conductive support member adapted to be mounted removably on the shaft to rotate in unison therewith; and a multiplicity of electrically conductive fibers secured to said support member and extending outwardly therefrom, said fibers being of a length such that the free end thereof periodically contacts said grounded member during the rotation of the shaft.
Claim 10
Dependent Claim
21 words
A printing machine according to claim 7, wherein said support member is adapted to be mounted slidably on the rotating shaft.
Claim 11
Dependent Claim
18 words
A printing machine according to claim 8, wherein said support member is frictionally secured to the rotating shaft.
Claim 12
Dependent Claim
26 words
A printing machine according to claim 9, wherein said support member is configured in the shape of an arch and being made from a resilient material.
References Cited (Backward Citations)
US4494166A
Cited
US4771360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-22 | 1994-10-22 | 1995-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-22 | 1998-10-22 | 1999-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-22 | 2002-10-22 | 2003-04-23 | $7700.00 | Window Closed / Lapsed |