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US3561747A Expired / Lapsed US ⏱️ 0.0 years remaining

Belleville spring supports

Assignee: Pneumo Dynamics Corp
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Filing: 1968-09-25
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Granted: 1971-02-09
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Expires: 1988-09-25
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Abstract

Abstract Belleville spring supports in the form of closely packed antifriction bearings contained in races having sufficient radial clearance to permit radial movement of the bearings with the I.D. and O.D. edges of the Belleville spring supported thereby as they move in and out during deflection.

Inventors

  • 👤 Alfred F Donnelly

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 16:09
CPC Classifications
F; F16; F16C; F16C27/00; G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0655; G05D16/0658

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 71 words
Belleville spring supports comprising two sets of antifriction bearings contained in annular races for engagement with the I.D. and O.D. edges of a Belleville spring on opposite sides thereof, said races having sufficient radial clearance for said bearings to permit said bearings to roll in a radial direction on said races as the I.D. and O.D. edges of the Belleville spring move radially in and out during deflection to reduce friction.
Claim 2
Dependent Claim 71 words
Belleville spring supports comprising two sets of antifriction bearings contained in annular races for engagement with the I.D. and O.D. edges of a Belleville spring on opposite sides thereof, said races having sufficient radial clearance for said bearings to permit said bearings to roll in a radial direction on said races as the I.D. and O.D. edges of the Belleville spring move radially in and out during deflection to reduce friction.
Claim 3
Dependent Claim 39 words
The Belleville spring supports of claim 1 wherein said antifriction bearings are relatively small ball bearings closely packed around the entire periphery of said bearing support members to provide a great many points of support for the Belleville spring.
Claim 4
Dependent Claim 102 words
In combination, a Belleville spring and supports therefor, said supports comprising two sets of antifriction bearings contained in annular races for engagement with the I.D. and O.D. edges of said Belleville spring on opposite sides thereof, each of said races comprising an annular bearing support member having a radial shoulder adjacent an axial end for engagement by said bearings, and a retainer sleeve extending axially outwardly beyond said shoulder having an axial outer end radially overlying a portion of the periphery of said bearings for retaining said bearings in place, and means for securing said retainer sleeve to said bearing support member.
Claim 5
Dependent Claim 102 words
In combination, a Belleville spring and supports therefor, said supports comprising two sets of antifriction bearings contained in annular races for engagement with the I.D. and O.D. edges of said Belleville spring on opposite sides thereof, each of said races comprising an annular bearing support member having a radial shoulder adjacent an axial end for engagement by said bearings, and a retainer sleeve extending axially outwardly beyond said shoulder having an axial outer end radially overlying a portion of the periphery of said bearings for retaining said bearings in place, and means for securing said retainer sleeve to said bearing support member.
Claim 6
Dependent Claim 42 words
The combination of claim 3 wherein said races have sufficient radial clearance for said bearings to permit said bearings to roll in a radial direction as the I.D. and O.D. edges of the Belleville spring move axially in and out during deflection.
Claim 7
Dependent Claim 36 words
The combination of claim 3 wherein the axial outer ends of said ball support members extend axially beyond the associated retainer sleeves for receipt of the edges of the Belleville spring to provide a guide therefor.
Claim 8
Dependent Claim 13 words
The combination of claim 3 further comprising means for preloading said Belleville spring.
Claim 9
Dependent Claim 27 words
The combination of claim 3 wherein one of said races is attached to a movable element and the other race is supported by a relatively fixed element.
Claim 10
Dependent Claim 130 words
Belleville spring supports comprising two sets of antifriction bearings contained in annular races for engagement with the I.D. and O.D. edges of a Belleville spring on opposite sides thereof, said races having sufficient radial clearance for said bearings to permit said bearings to roll as the I.D. and O.D. edges of the Belleville spring move radially in and out during deflection to reduce friction, each of said races comprising an annular bearing support member having a radial shoulder adjacent one end for engagement by said bearings, and a retainer sleeve extending axially outwardly beyond said shoulder and having an axial outer end radially overlying a portion of the periphery of said bearings for retaining said bearings in place, and means for securing said retainer sleeve to said bearing support member.
Claim 11
Dependent Claim 130 words
Belleville spring supports comprising two sets of antifriction bearings contained in annular races for engagement with the I.D. and O.D. edges of a Belleville spring on opposite sides thereof, said races having sufficient radial clearance for said bearings to permit said bearings to roll as the I.D. and O.D. edges of the Belleville spring move radially in and out during deflection to reduce friction, each of said races comprising an annular bearing support member having a radial shoulder adjacent one end for engagement by said bearings, and a retainer sleeve extending axially outwardly beyond said shoulder and having an axial outer end radially overlying a portion of the periphery of said bearings for retaining said bearings in place, and means for securing said retainer sleeve to said bearing support member.
Claim 12
Dependent Claim 38 words
The Belleville spring supports of claim 8 wherein the axial outer ends of said bearing support members extend axially beyond the associated retainer sleeves for receipt of the edges of the Belleville spring to provide a guide therefor.

References Cited (Backward Citations)

US2614832A Cited
US3375000A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-02-08 1974-08-10 1975-02-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-08 1978-08-10 1979-02-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-08 1982-08-10 1983-02-09 $7700.00 Window Closed / Lapsed

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