Patent US3171050A successfully refreshed from Google Patents.
US3171050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical brush holder
Assignee: Individual
•
Filing: 1962-10-24
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Granted: 1965-02-23
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Expires: 1982-10-24
Abstract
No abstract record available.
Inventors
- 👤 Gordon James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:40
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/38; H01R39/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
AN ELECTRICAL BRUSH HOLDER COMPRISING A BODY HAVING A BORE PROVIDED WITH LONGITUDINAL EXTENDING SLIDFORMING MEANS FOR SLIDABLY RECEIVING AN ELECTRICAL BRUSH AND CONFINING SAME TO RECIPROCATING MOVEMENT, SAID BORE BEING OPEN AT ONE END AND THROUGH WHICH THE BRUSH MAY BE INSERTED THEREINTO WITH THE BRUSH PROJECTING OUTWARDLY OF THE BORE AT SAID ONE END THEREOF AND WITH THE BRUSH BEING SPACED FROM THE OTHER END OF THE BORE, SAID BODY BEING PERFORATED AT ITS OTHER END TO PROVIDE AN OPENING THERETHROUGH IN COMMUNICATION WITH THE BORE, THE CROSS-SECTIONAL AREA OF THE BORE BEING SUBSTANTIALLY GREATER THAN THE CROSS-SECTIONAL AREA THAT IS TO BE OCCPIED BY THE BRUSH SO AS TO FORM A PASSAGEWAY FROM SAID ONE END OF THE BORE TO THE OPENING AT THE OTHER END THEREOF, THE PASSAGEWAY HAVING CROSS-SECTIONAL AREAS SUCH THAT VIBRATORY MOVEMENT OF A BRUSH IN THE BORE CONSTITUTES A PUMP THAT CREATES A FLOW OF AIR THROUGH THE PASSAGEWAY FROM ONE END OF THE BORE TO THE OTHER.
Claim 2
Dependent Claim
166 words
AN ELECTRICAL BRUSH HOLDER COMPRISING A BODY HAVING A BORE PROVIDED WITH LONGITUDINAL EXTENDING SLIDFORMING MEANS FOR SLIDABLY RECEIVING AN ELECTRICAL BRUSH AND CONFINING SAME TO RECIPROCATING MOVEMENT, SAID BORE BEING OPEN AT ONE END AND THROUGH WHICH THE BRUSH MAY BE INSERTED THEREINTO WITH THE BRUSH PROJECTING OUTWARDLY OF THE BORE AT SAID ONE END THEREOF AND WITH THE BRUSH BEING SPACED FROM THE OTHER END OF THE BORE, SAID BODY BEING PERFORATED AT ITS OTHER END TO PROVIDE AN OPENING THERETHROUGH IN COMMUNICATION WITH THE BORE, THE CROSS-SECTIONAL AREA OF THE BORE BEING SUBSTANTIALLY GREATER THAN THE CROSS-SECTIONAL AREA THAT IS TO BE OCCPIED BY THE BRUSH SO AS TO FORM A PASSAGEWAY FROM SAID ONE END OF THE BORE TO THE OPENING AT THE OTHER END THEREOF, THE PASSAGEWAY HAVING CROSS-SECTIONAL AREAS SUCH THAT VIBRATORY MOVEMENT OF A BRUSH IN THE BORE CONSTITUTES A PUMP THAT CREATES A FLOW OF AIR THROUGH THE PASSAGEWAY FROM ONE END OF THE BORE TO THE OTHER.
References Cited (Backward Citations)
CH243204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |