US3879786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivotable rotary brush drive assembly
Assignee: ECOLOTEC Inc
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Filing: 1974-02-07
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Granted: 1975-04-29
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Expires: 1994-02-07
Abstract
Abstract A rotatably driven brush core is slidably mounted on a coresupporting shaft, the shaft pivotally connected to a drive shaft and core engaging drive flange fixed to the drive shaft. An idle shaft removably connected to the core-supporting shaft positions the core on the supporting shaft and prevents relative rotation between the core and the core-supporting shaft.
Inventors
- 👤 Robert F Larkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:50
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/02; E01H1/05; E01H1/056
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
A rotatable brush mounting adapted to receive a brush core comprising a drive shaft for transmitting to the brush core power for driving the brush core in rotation, a core-supporting shaft pivotally connected to the drive shaft for supporting the brush core, an idle shaft removably connected to the core-supporting shaft for positioning the brush core on the core-supporting shaft, and pivotal means interconnecting the drive shaft and the core-supporting shaft for permitting the core-supporting shaft to pivot relative to the drive shaft when the idle shaft is removed.
Claim 2
Dependent Claim
89 words
A rotatable brush mounting adapted to receive a brush core comprising a drive shaft for transmitting to the brush core power for driving the brush core in rotation, a core-supporting shaft pivotally connected to the drive shaft for supporting the brush core, an idle shaft removably connected to the core-supporting shaft for positioning the brush core on the core-supporting shaft, and pivotal means interconnecting the drive shaft and the core-supporting shaft for permitting the core-supporting shaft to pivot relative to the drive shaft when the idle shaft is removed.
Claim 3
Dependent Claim
29 words
The rotatable brush mounting of claim 1 wherein the idle shaft further comprises means interconnecting the brush core and the core supporting shaft for preventing relative rotation motion therebetween.
Claim 4
Dependent Claim
28 words
The rotatable brush mounting of claim 1 further comprising a drive flange fixed to the drive shaft and engaging the brush core for rotatably driving the brush core.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |