Patent EP0355611A1 successfully refreshed from Google Patents.
EP0355611A1
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EP
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Radially resilient, canted-coil spring with turn angle and seal
Assignee: Individual
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Filing: 1989-08-11
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Granted: —
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Expires: 2009-08-11
Abstract
Abstract A radially resilient canted coiled spring (12) includes a plurality of coils (14) canted along a centerline thereof with each coil (14) having a trailing portion and a leading portion. The disposition of the trailing portion is defined by a back angle between the trailing portion and a line normal to the centerline and the disposition of the leading portion is defined by a front angle between the leading portion and a normal line. Specific resilient performance, or load-deflection characteristics of the radially resilient canted coiled springs is determined by controlling a turn angle of the coil spring (12).
Inventors
- 👤 Peter J. Balsells
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 19:30
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3208; F16J15/3212; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/045
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
158 words
A radially resilient canted coiled spring (12) comprising: - a plurality of coil means (14), interconnected and canted along a centerline (56) thereof, for causing the coiled spring (12) to exert a generally constant force over a preselected range of deflection of the coiled spring (12) in response to radial loading; - back angle means for defining the disposition of a trailing portion (50) of each coil (14) with respect to a line (54) normal to the centerline (56); - front angle means for defining the disposition of a leading portion (62) of each coil (14) with respect to the normal line (54), said front angle means being greater than said back angle means; and - means, orienting said plurality of coil means (14) at a turn angle Θ, for controlling the magnitude of the generally constant force within the preselected range of deflection, said turn angle Θ being greater than zero degrees and less than 90 degrees.
Claim 2
Dependent Claim
158 words
A radially resilient canted coiled spring (12) comprising: - a plurality of coil means (14), interconnected and canted along a centerline (56) thereof, for causing the coiled spring (12) to exert a generally constant force over a preselected range of deflection of the coiled spring (12) in response to radial loading; - back angle means for defining the disposition of a trailing portion (50) of each coil (14) with respect to a line (54) normal to the centerline (56); - front angle means for defining the disposition of a leading portion (62) of each coil (14) with respect to the normal line (54), said front angle means being greater than said back angle means; and - means, orienting said plurality of coil means (14) at a turn angle Θ, for controlling the magnitude of the generally constant force within the preselected range of deflection, said turn angle Θ being greater than zero degrees and less than 90 degrees.
Claim 3
Dependent Claim
48 words
The radially resilient canted coiled spring according to Claim 1 wherein the trailing portion (50) ist disposed along an outside diameter of the radially loaded canted coiled spring (12) and the leading portion (62) is disposed along an inside diameter of the radially resilient canted coiled spring (12).
Claim 4
Dependent Claim
48 words
The radially resilient canted coiled spring according to Claim 1 wherein the trailing portion (50) is disposed along an inside diameter of the radially loaded canted coiled spring (12) and the leading portion (62) is disposed along an outside diamter of the radially resilient canted coiled spring (12).
Claim 5
Dependent Claim
21 words
The radially resilient canted coiled spring according to Claim 2 or 3 wherein the back angle (52) is about 4 degrees.
Claim 6
Dependent Claim
22 words
The radially resilient canted coiled spring according to Claim 4 wherein the front angle (60) means is less than about 55 degrees.
Claim 7
Dependent Claim
34 words
The radially resilient canted coiled spring according to any one of Claims 1 - 5 wherein the radially resilient canted coiled spring is disposed in a seal (16) at a preselected turn angle Θ.
Claim 8
Dependent Claim
133 words
A radially resilient canted coiled spring seal (10) comprising: - a plurality of coils (14) canted along a centerline (56) thereof; - back angle means for defining the disposition of a trailing portion (56) of each coil (14) with respect to a line (54) normal to the centerline (56); - front angle means for defining the disposition of a leading portion (62) of each coil (14) with respect to the normal line (54), said front angle means being greater than said back angle means; - said coils (14) being interconnected in a manner forming a radially resilient canted coiled spring (12); and - annular seal means (16) for non-invasively supporting the radially resilient canted coiled spring (12) in an orientation for controlling the resilient characteristics of the radially resilient canted coiled spring (12).
Claim 9
Dependent Claim
133 words
A radially resilient canted coiled spring seal (10) comprising: - a plurality of coils (14) canted along a centerline (56) thereof; - back angle means for defining the disposition of a trailing portion (56) of each coil (14) with respect to a line (54) normal to the centerline (56); - front angle means for defining the disposition of a leading portion (62) of each coil (14) with respect to the normal line (54), said front angle means being greater than said back angle means; - said coils (14) being interconnected in a manner forming a radially resilient canted coiled spring (12); and - annular seal means (16) for non-invasively supporting the radially resilient canted coiled spring (12) in an orientation for controlling the resilient characteristics of the radially resilient canted coiled spring (12).
Claim 10
Dependent Claim
47 words
The radially resilient canted coiled spring seal (10) according to Claim 7 wherein said annular seal means includes means defining a cavity for supporting and orienting said radially resilient canted coiled spring (12) with a turn angle Θ of greater than zero degrees less than 90 degrees.
Claim 11
Dependent Claim
50 words
The radially resilient canted coiled spring seal (10) according to Claim 8 wherein the trailing portion (50) is disposed along an outside diameter of the radially resilient canted coiled spring (12) and the leading portion (62) is disposed along an inside diameter of the radially resilient canted coiled spring (12).
Claim 12
Dependent Claim
49 words
The radially resilient canted coiled spring seal according to Claim 8 wherein the trailing portion (50) is disposed along an inside diameter of the radially resilient canted coiled spring (12) and the leading portion (62) is disposed along an outside diameter of the radially resilient canted coiled spring (12).
References Cited (Backward Citations)
US3183010A
Cited
GB2169378A
Cited
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