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US3904299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device intended to protect a joint between two elements
Assignee: Poclain SA
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Filing: 1974-08-09
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Granted: 1975-09-09
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Expires: 1994-08-09
Abstract
Abstract A joint assembly comprises two side plates interposed between two flanges of a stationary element carrying a bearing spindle, and a movable element pivotal about the spindle. The side plates have a magnetic surface facing the flanges of the stationary element and a non-magnetic surface facing the movable element and carrying seals.
Inventors
- 👤 Bernard M Loonis
- 👤 Richard Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:15
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/74; F16C11/00; F16C11/04; F16C11/045; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/54; F16B; F16B2200/00; F16B2200/60; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32918
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
An assembly comprising a spindle, a first element mounted on the spindle and having a cylindrical surface, a second element, said second element having two flanges, the first element lying between the flanges and the flanges acting as stops to limit relative axial displacement between the first and second elements, two plates, each disposed with a clearance between the first element and a respective one of the flanges of the second element, each said plate having a first surface facing towards the adjacent flange and a second, opposing, surface, the first surface being magnetic, and the second surface including a cylindrical bearing portion substantially co-axial with the spindle, and sealing means, said cylindrical bearing portion co-operating with said cylindrical surface via said sealing means.
Claim 2
Dependent Claim
124 words
An assembly comprising a spindle, a first element mounted on the spindle and having a cylindrical surface, a second element, said second element having two flanges, the first element lying between the flanges and the flanges acting as stops to limit relative axial displacement between the first and second elements, two plates, each disposed with a clearance between the first element and a respective one of the flanges of the second element, each said plate having a first surface facing towards the adjacent flange and a second, opposing, surface, the first surface being magnetic, and the second surface including a cylindrical bearing portion substantially co-axial with the spindle, and sealing means, said cylindrical bearing portion co-operating with said cylindrical surface via said sealing means.
Claim 3
Dependent Claim
68 words
An assembly according to claim 1, wherein each said plate comprises a ring of magnetic material having first and second opposed axial surfaces, and a support member of non-magnetic material, said support member including said cylindrical bearing portion, the said first axial surface of the ring forming the said first surface of the plate, and the said second surface of the ring being secured to the support member.
Claim 4
Dependent Claim
48 words
An assembly according to claim 1, wherein each said plate comprises a ring of magnetic material, and a support member of non-magnetic material, said support member providing said first and second surfaces of the plate, the ring being embedded in the support member adjacent to the first surface.
Claim 5
Dependent Claim
75 words
An assembly according to claim 2, wherein the support member has an annular projection, the peripheral surfaces of which define two cylindrical bearing portions substantially co-axial with the spindle, the first element has an annular groove the peripheral surfaces of which define two cylindrical surfaces, and said sealing means comprises toroidal seals, said projection being located in said groove and said seals being located between the adjacent peripheral surfaces of the projection and the groove.
Claim 6
Dependent Claim
33 words
An assembly according to claim 1, wherein the first element includes two shouldeRs, said shoulders lying adjacent the spindle, and each said shoulder being interposed between the spindle and a respective said plate.
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) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |