Patent US4043616A successfully refreshed from Google Patents.
US4043616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing cartridge assembly
Assignee: Individual
•
Filing: 1976-05-27
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Granted: 1977-08-23
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Expires: 1996-05-27
Abstract
Abstract A bearing cartridge assembly or conveyor rolls or the like comprises a bearing structure, a fluid lubricant containing particles of magnetizable material disposed within the bearing, and permanent magnet lubricating means disposed adjacent the bearing elements but separate therefrom so as to establish magnetic flux paths between the bearing elements through the fluid lubricant, whereby the lubricant is distributed uniformly over the bearing surfaces by magnetic attraction.
Inventors
- 👤 Aaron Zimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:05
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/40; F16J15/43; B; B65; B65G; B65G39/00; B65G39/02; B65G39/09; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/664; F16C33/6644
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
99 words
A bearing for conveyor rolls or the like adapted to fit within a conveyor roll shell comprising coaxial inner and outer bearing elements spaced apart to provide a bearing cavity between their bearing surfaces, a fluid lubricant containing particles of magnetizable material disposed in the bearing cavity, and permanent magnet lubricating means disposed adjacent the bearing elements but separate therefrom and outside the bearing cavity to establish flux paths between the bearing elements and across the bearing cavity so as to distribute the lubricant uniformly over the bearing surfaces within the bearing cavity by magnetic attraction of the lubricant.
Claim 2
Dependent Claim
99 words
A bearing for conveyor rolls or the like adapted to fit within a conveyor roll shell comprising coaxial inner and outer bearing elements spaced apart to provide a bearing cavity between their bearing surfaces, a fluid lubricant containing particles of magnetizable material disposed in the bearing cavity, and permanent magnet lubricating means disposed adjacent the bearing elements but separate therefrom and outside the bearing cavity to establish flux paths between the bearing elements and across the bearing cavity so as to distribute the lubricant uniformly over the bearing surfaces within the bearing cavity by magnetic attraction of the lubricant.
Claim 3
Dependent Claim
34 words
Apparatus of claim 1 in which the magnet means comprise an annular permanent magnet having two coaxial annular poles on one end adjoining one end of the bearing, one pole opposite each bearing element.
Claim 4
Dependent Claim
13 words
Apparatus of claim 2 in which the bearing elements comprise an anti-friction bearing.
Claim 5
Dependent Claim
13 words
Apparatus of claim 2 in which the bearing elements comprise a journal bearing.
Claim 6
Dependent Claim
37 words
Apparatus of claim 2 in which the pole of the magnet opposite one bearing element abuts that element and the pole of the magnet opposite the other element is spaced therefrom sufficiently to permit relative rotation therebetween.
Claim 7
Dependent Claim
26 words
Apparatus of claim 1 in which the bearing elements comprise a journal bearing and the magnetic means comprise a permanent magnet embedded in a bearing element.
Claim 8
Dependent Claim
16 words
Apparatus of claim 6 in which the permanent magnet is a high magnetic field intensity magnet.
Claim 9
Dependent Claim
28 words
Apparatus of claim 6 including a shaft carrying the inner bearing element and in which the permanent magnet is embedded in the shaft centrally of the bearing cavity.
Claim 10
Dependent Claim
15 words
Apparatus of claim 8 in which the permanent magnet is magnetized crossways of the shaft.
Claim 11
Dependent Claim
21 words
Apparatus of claim 6 in which the axial length of the permanent magnet poles is substantially that of the bearing cavity.
Claim 12
Dependent Claim
57 words
Apparatus of claim 1 including, in combination, an assembly comprising a housing enclosing the outer bearing element and a shaft through the inner bearing element, and means within the assembly attached to one element thereof adapted to form a dynamic barrier with the other element of the assembly so as to exclude foreign substances from the bearing.
Claim 13
Dependent Claim
29 words
Apparatus of claim 11 including a bore in the shaft extending from an outside end of the shaft to the bearing elements adapted to conduct lubricant to those elements.
Claim 14
Dependent Claim
24 words
Apparatus of claim 11 including a bore in the housing extending from the outside thereof to the bearing element adapted to conduct lubricant thereto.
Claim 15
Dependent Claim
41 words
Apparatus of claim 11 in which the barrier means are permanent magnet means coacting with the fluid lubricant between the permanent magnet means and the other element of the assembly to form a barrier by magnetic attraction of the lubricant means.
Claim 16
Dependent Claim
62 words
Apparatus of claim 14 in which the permanent magnet lubricating means and the permanent magnet barrier means comprise a single annular permanent magnet adjacent the bearing having two coaxial annular poles on its end face adjoining the bearing, one pole opposite each bearing element, and at least one pair of annular poles on its circumference adjoining the other element of the assembly.
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) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |