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US4788932A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for coating the groove of a ball bearing with a powder-type solid lubricating material

Assignee: Deutsches Zentrum für Luft- und Raumfahrt eV
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Filing: 1987-02-19
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Granted: 1988-12-06
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Expires: 2007-02-19
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Abstract

Abstract In a device for coating the groove of a ball bearing with a powder-type licating material, in particular molybdenum sulfide, with a polishing component that enters the groove and is movable in relation to the groove, it is proposed, in order to increase the evenness of the coating and at the same time to prevent the area outside the rolling area of the groove from being coated, that the polishing component touch only that area on the groove over which the balls of the ball bearings roll, and that a feed device for the powder-type solid lubricant be provided which applies that lubricant to the polishing component outside the area where the polishing component touches the groove, in an area of the polishing component which comes into contact with the groove during relative movement between the polishing component and the groove.

Inventors

  • 👤 Werner Kullman, deceased
  • 👤 heir Ursula Spang
  • 👤 Volker Buck

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 08:46
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/041; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/64; F16C33/66; F16C33/6696; F16H57/0467; F16H57/0469; F16N; F16N15/00

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 124 words
Device for coating the groove of a ball bearing with a powder-type solid lubricant, in particular molybdenum sulfide, comprising an O-ring polisher which enters the groove, means for moving said O-ring relative to the groove, said O-ring having a diameter that is at most equal to the diameter of the groove so that it touches the groove only in the area over which the balls of the ball bearing roll, and a feeding device for the powder-type solid lubricant which applies the lubricant to the O-ring at a region located outside the area of contact between said O-ring and the groove over a portion of said O-ring that comes into contact with the groove during said relative movement between said O-ring and the groove.
Claim 2
Dependent Claim 124 words
Device for coating the groove of a ball bearing with a powder-type solid lubricant, in particular molybdenum sulfide, comprising an O-ring polisher which enters the groove, means for moving said O-ring relative to the groove, said O-ring having a diameter that is at most equal to the diameter of the groove so that it touches the groove only in the area over which the balls of the ball bearing roll, and a feeding device for the powder-type solid lubricant which applies the lubricant to the O-ring at a region located outside the area of contact between said O-ring and the groove over a portion of said O-ring that comes into contact with the groove during said relative movement between said O-ring and the groove.
Claim 3
Dependent Claim 18 words
Device according to claim 1, wherein said moving means rotates said O-ring and the groove in opposite directions.
Claim 4
Dependent Claim 29 words
Device according to claim 1, wherein said moving means includes a guide roller that guides said O-ring and the distance between said guide roller and the groove is adjustable.

References Cited (Backward Citations)

US870807A Cited
GB493857A Cited
US2423880A Cited
DE1105321B Cited
US3075279A Cited
US3387985A Cited
US3389009A Cited
US3710753A Cited
DE2641899A1 Cited
US4070987A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-12-06 1992-06-06 1992-12-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-12-06 1996-06-06 1996-12-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-12-06 2000-06-06 2000-12-06 $7700.00 Window Closed / Lapsed

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