US4065188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear bearing for parallel tracking arm
Assignee: Nytell Software LLC
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Filing: 1976-07-14
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Granted: 1977-12-27
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Expires: 1996-07-14
Abstract
Abstract A linear bearing arrangement has a slider which slides in a channel in a slide and a layer of magnetic lubricant material which adheres to a magnetized region or regions of the slide, slider or both.
Inventors
- 👤 Keith Douglas Ridler
- 👤 Alexander Bennett Gosling
- 👤 Gordon Malcolm Edge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:23
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/10; G11B3/34; G11B3/38; F; F16; F16C; F16C29/00; F16C29/02; F16C32/00; F16C32/06; F16C32/0629; F16C32/0633; F16C32/0637; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/103; F16C33/1035; F16C2370/00; F16C2370/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
84 words
A linear bearing arrangement including a slide having a first bearing surface, a slider having a second bearing surface, a thin film of magnetic fluid lubricant material between the said surfaces, the thin film of magnetic fluid lubricant material adhering to one of the said bearing surfaces under the influence of a magnetic field and means to provide a magnetic field extending from one of the said bearing surfaces to the magnetic fluid lubricating material to maintain the said material on said one surface.
Claim 2
Dependent Claim
84 words
A linear bearing arrangement including a slide having a first bearing surface, a slider having a second bearing surface, a thin film of magnetic fluid lubricant material between the said surfaces, the thin film of magnetic fluid lubricant material adhering to one of the said bearing surfaces under the influence of a magnetic field and means to provide a magnetic field extending from one of the said bearing surfaces to the magnetic fluid lubricating material to maintain the said material on said one surface.
Claim 3
Dependent Claim
35 words
A linear bearing arrangement according to claim 1 said slide being constituted by a body of non-magnetic material and said slider being constituted by a magnet, the lubricant material adhering to the second bearing surface.
Claim 4
Dependent Claim
16 words
A linear bearing according to claim 2 wherein said slider is magnetised transversely of its length.
Claim 5
Dependent Claim
35 words
A linear bearing arrangement according to claim 1 said slide being constituted by a body of magnetic material and said slider being constituted by a magnet, the lubricant material adhering to the second bearing surface.
Claim 6
Dependent Claim
36 words
A linear bearing arrangement according to claim 1 said slide being constituted by a magnet and a said slider being constituted by a body of magnetic material, the lubricant material adhering to the first bearing surface.
Claim 7
Dependent Claim
46 words
A linear bearing arrangement according to claim 1 wherein said slide has a V-shaped channel, the first surface being constituted by the two faces of the channel and said slider has a triangular cross-section, the second bearing surface being constituted by two faces of the slider.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |