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US5139243A Expired / Lapsed US ⏱️ 0.0 years remaining

Axial canted coil springs in sinusoidal form

Assignee: Bal Seal Engineering LLC
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Filing: 1990-07-30
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Granted: 1992-08-18
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Expires: 2010-07-30
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Abstract

Abstract A length of canted coil spring (10) is disclosed which is suitable for forming a stable, when unsupported, circular axially loadable spring. The length of spring (10) includes a plurality of elliptical coils (18) canted along a coil centerline (20) with the coil centerline following a helical path about a helix centerline (24). The length of canted coil springs (10) is approximately equal to a distance, or pitch, along the helix centerline (24) necessary for one complete revolution of the helical path thereabout. <IMAGE>

Inventors

  • 👤 Peter J. Balsells

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:14
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/045; F16J; F16J15/00; F16J15/02; F16J15/021; F16J15/022; F16J15/024; F16J15/027

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 85 words
A length of canted coil spring suitable for forming a stable, when unsupported, circular axially loadable garter-type spring, said length of canted coil spring comprising: a plurality of elliptical coils canted along a coil centerline, said coil centerline following a helical path about a helix centerline when the length of canted coil spring is in an unrestrained, non-circular form, said length of canted coil spring being approximately equal to a pitch along the helix centerline necessary for one complete revolution of the helical path thereabout.
Claim 2
Dependent Claim 85 words
A length of canted coil spring suitable for forming a stable, when unsupported, circular axially loadable garter-type spring, said length of canted coil spring comprising: a plurality of elliptical coils canted along a coil centerline, said coil centerline following a helical path about a helix centerline when the length of canted coil spring is in an unrestrained, non-circular form, said length of canted coil spring being approximately equal to a pitch along the helix centerline necessary for one complete revolution of the helical path thereabout.
Claim 3
Dependent Claim 104 words
A length of canted coil spring suitable for forming a stable, when unsupported, circular axially loadable garter-type spring, said canted coil spring comprising: a plurality of elliptical coils canted along a coil centerline, said coil centerline following a helical path about a helix centerline when the length of canted coil spring is in an unrestrained, non-circular form, and means, defining a length of said canted coil spring, for enabling the length of said canted coil spring to be formed into a circular axial garter-type spring having a major axis of the elliptical coils being approximately in the plane of the circular axially loadable spring.
Claim 4
Dependent Claim 104 words
A length of canted coil spring suitable for forming a stable, when unsupported, circular axially loadable garter-type spring, said canted coil spring comprising: a plurality of elliptical coils canted along a coil centerline, said coil centerline following a helical path about a helix centerline when the length of canted coil spring is in an unrestrained, non-circular form, and means, defining a length of said canted coil spring, for enabling the length of said canted coil spring to be formed into a circular axial garter-type spring having a major axis of the elliptical coils being approximately in the plane of the circular axially loadable spring.
Claim 5
Dependent Claim 137 words
A length of canted coil spring suitable for forming a stable, when unsupported circular axially loadable garter-type spring, said length of canted coil spring comprising: a plurality of elliptical coils canted along a coil centerline, said coil centerline following a helical path about a helix centerline when the length of canted coil spring is in an unrestrained, non-circular form; means defining a coil height, measured along a minor axis of each elliptical coils, and a coil wire thickness, for causing the stable circular axially loadable garter-type spring to assume a selected turn angle when the length of canted coil springs is joined to form the circular axially loadable garter-type spring; and said length of canted coil spring being approximately equal to a pitch along the helix centerline necessary for one complete revolution of the helical path thereabout.
Claim 6
Dependent Claim 137 words
A length of canted coil spring suitable for forming a stable, when unsupported circular axially loadable garter-type spring, said length of canted coil spring comprising: a plurality of elliptical coils canted along a coil centerline, said coil centerline following a helical path about a helix centerline when the length of canted coil spring is in an unrestrained, non-circular form; means defining a coil height, measured along a minor axis of each elliptical coils, and a coil wire thickness, for causing the stable circular axially loadable garter-type spring to assume a selected turn angle when the length of canted coil springs is joined to form the circular axially loadable garter-type spring; and said length of canted coil spring being approximately equal to a pitch along the helix centerline necessary for one complete revolution of the helical path thereabout.
Claim 7
Dependent Claim 69 words
The canted coil spring according to claim 1, 2 or 3 further comprising means defining a canted coil spring amplitude, measured perpendicular to said helix centerline between points of maximum traverse of the helical path from the helix centerline, for causing the stable circular axially loadable spring to assume a selected turn angle when the length of canted coil spring is joined to form the circular axially loadable spring.
Claim 8
Dependent Claim 38 words
The canted coil spring according to claim 1, 2 or 3 wherein the helical path advances in a clockwise manner along the helix centerline and the elliptical coils are wound in a clockwise manner about said coil centerline.
Claim 9
Dependent Claim 38 words
The canted coil spring according to claim 1, 2 or 3 wherein the helical path advances in a clockwise manner along the helix centerline and the elliptical coils are wound in a counterclockwise manner about said coil centerline.
Claim 10
Dependent Claim 38 words
The canted coil spring according to claim 1, 2 or 3 wherein the helical path advances in a counterclockwise manner along the helix centerline and the elliptical coils are wound in a clockwise manner about said coil centerline.
Claim 11
Dependent Claim 38 words
The canted coil spring according to claim 1, 2 or 3 wherein the helical path advances in a counterclockwise manner along the helix centerline and the elliptical coils are wound in a counterclockwise manner about said coil centerline.
Claim 12
Dependent Claim 22 words
The canted coil spring according to claim 1 wherein said length of canted coil spring is within ±10 percent of the pitch.
Claim 13
Dependent Claim 22 words
The canted coil spring according to claim 1 wherein said length of canted coil spring is within ±50 percent of the pitch.
Claim 14
Dependent Claim 22 words
The canted coil spring according to claim 1 wherein said length of canted coil spring is within ±30 percent of the pitch.
Claim 15
Dependent Claim 90 words
A length of canted coil spring suitable for forming a plurality of stable, when unsupported, circular axially loadable garter-type springs, said length of canted coil spring comprising: a plurality of elliptical coils canted along a coil centerline, said coil centerline following a helical path about a helix centerline, when the length of canted coil spring is in an unrestrained, non-circular form, said length of canted coil spring being approximately equal to a multiple of a distance along the helix centerline necessary for one complete revolution of the helical path thereabout.
Claim 16
Dependent Claim 90 words
A length of canted coil spring suitable for forming a plurality of stable, when unsupported, circular axially loadable garter-type springs, said length of canted coil spring comprising: a plurality of elliptical coils canted along a coil centerline, said coil centerline following a helical path about a helix centerline, when the length of canted coil spring is in an unrestrained, non-circular form, said length of canted coil spring being approximately equal to a multiple of a distance along the helix centerline necessary for one complete revolution of the helical path thereabout.

References Cited (Backward Citations)

FR503441A Cited
DE566963C Cited
US2600534A Cited
US3468527A Cited
US4655462A Cited
US4826144A Cited
US4830344A Cited
US4876781A Cited
US4907788A Cited
US4915366A Cited
US4893795A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-08-18 1996-02-17 1996-08-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-08-18 2000-02-17 2000-08-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-08-18 2004-02-17 2004-08-18 $7700.00 Window Closed / Lapsed

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