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US4411545A Expired / Lapsed US ⏱️ 0.0 years remaining

Swivel joint

Assignee: SKF Compagnie dApplications Mecaniques SA
•
Filing: 1982-03-02
•
Granted: 1983-10-25
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Expires: 2002-03-02
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Abstract

Abstract A swivel joint comprises an outer ring having a cavity in the form of a portion of sphere, and an inner ring whose shape is partly spherical and which is housed in the spherical cavity of the outer ring. The inner ring presents only two diametrically opposite notches, disposed substantially in the median plane perpendicular to the axis of the ring. The outer ring presents only two pairs of notches whose width is equal, to within the clearance, to the width of the parts of the ring which flank the notches of the inner ring, the two notches of the same pair of outer ring notches being spaced apart from each other by a distance equal, to within the clearance, to the width of the notches of the inner ring, the assembly of two notches of a pair of outer ring notches extending over a width substantially equal to the thickness of the inner ring.

Inventors

  • 👤 Gerard Roberge

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 05:42
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0614; Y; Y10; Y10T; Y10T403/00; Y10T403/16; Y10T403/1608; Y10T403/32; Y10T403/32606; Y10T403/32631

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 166 words
In a swivel joint comprising an outer ring having a cavity in the form of a portion of sphere, and an inner ring whose shape is partly spherical and which is housed in the spherical cavity of the outer ring, the cavity of the outer ring presenting, in part of its thickness, diametrically opposite notches, the inner ring presents only two diametrically opposite notches, disposed substantially in the median plane perpendicular to the axis of the ring, and the outer ring presents only two pairs of notches whose width is substantially equal, to the width of the parts of the ring which flank the notches of the inner ring, the two notches of the same pair of outer ring notches being spaced apart from each other by a distance substantially equal, to the width of the notches of the inner ring, the assembly of two notches of a pair of outer ring notches extending over a width substantially equal to the thickness of the inner ring.
Claim 2
Dependent Claim 166 words
In a swivel joint comprising an outer ring having a cavity in the form of a portion of sphere, and an inner ring whose shape is partly spherical and which is housed in the spherical cavity of the outer ring, the cavity of the outer ring presenting, in part of its thickness, diametrically opposite notches, the inner ring presents only two diametrically opposite notches, disposed substantially in the median plane perpendicular to the axis of the ring, and the outer ring presents only two pairs of notches whose width is substantially equal, to the width of the parts of the ring which flank the notches of the inner ring, the two notches of the same pair of outer ring notches being spaced apart from each other by a distance substantially equal, to the width of the notches of the inner ring, the assembly of two notches of a pair of outer ring notches extending over a width substantially equal to the thickness of the inner ring.
Claim 3
Dependent Claim 29 words
The swivel joint of claim 1, wherein the width of the notches of the inner ring is at least equal to 40% of the thickness of the outer ring.
Claim 4
Dependent Claim 30 words
The swivel joint of claim 1, wherein the width of the notches of the inner ring is at the most equal to 80% of the thickness of said inner ring.

References Cited (Backward Citations)

US2047885A Cited
GB554879A Cited
US3007747A Cited
US3174811A Cited
US3365249A Cited
US3586358A Cited
US3589779A Cited
US3803685A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-10-24 1987-04-25 1987-10-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-10-24 1991-04-25 1991-10-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-10-24 1995-04-25 1995-10-25 $7700.00 Window Closed / Lapsed

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