Patent EP0339542A2 successfully refreshed from Google Patents.
EP0339542A2
Expired / Lapsed
EP
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Axially resilient, canted-coil spring with turn angle and seal
Assignee: Individual
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Filing: 1989-04-24
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Granted: —
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Expires: 2009-04-24
Abstract
Abstract A garter-type axially resilient coil spring (12) includes a plurality of coils (14) canted along a centerline (56) thereof with each coil (14) having a trailing portion (50) and a leading portion (62). The disposition of the trailing portion (50) is defined by a back angle (52) between the trailing portion (50) and a line (54) normal to the centerline (56) and the disposition of the leading portion (62) is defined by a front angle (60) between the leading portion (62) and a normal line (54). Specific resilient performance, or load-characteristics, of the springs (12) are obtained by controlling a turn angle ( theta ) of the coil spring (12). At selected turn angles ( theta ), springs (12) exhibit a resilient working area bounded by steep load-deflection characteristics.
Inventors
- 👤 Peter J. Balsells
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 12:59
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/021; F16J15/022; F16J15/024; F16J15/025; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/045; F16J15/16; F16J15/34; F16J15/3436; F16J15/344
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
150 words
An annular axially resilient coiled spring seal (10) comprising: a plurality of coils (14) canted along a centerline (56) thereof; back angle means for both defining the disposition of a trailing portion (50) of each coil (14) with respect to a line (54, 64) normal to the centerline (56) and for determining the load-deflection characteristics of the garter-type axially resilient coiled spring (12 12a); front angle means for defining the disposition of a leading portion (62) of each coil (14) with respect to the normal line (54, 64), said front angle means being greater than said back angle means; said coils (14) being interconnected in a manner forming a garter-type axially resilient coiled spring (12, 12a); and annular seal means (16) for non-invasively supporting the garter-type axially resilient coiled spring (12, 12a) in a preselected orientation for controlling the resilient characteristics of the annular axially resilient coiled spring (12, 12a).
Claim 2
Dependent Claim
150 words
An annular axially resilient coiled spring seal (10) comprising: a plurality of coils (14) canted along a centerline (56) thereof; back angle means for both defining the disposition of a trailing portion (50) of each coil (14) with respect to a line (54, 64) normal to the centerline (56) and for determining the load-deflection characteristics of the garter-type axially resilient coiled spring (12 12a); front angle means for defining the disposition of a leading portion (62) of each coil (14) with respect to the normal line (54, 64), said front angle means being greater than said back angle means; said coils (14) being interconnected in a manner forming a garter-type axially resilient coiled spring (12, 12a); and annular seal means (16) for non-invasively supporting the garter-type axially resilient coiled spring (12, 12a) in a preselected orientation for controlling the resilient characteristics of the annular axially resilient coiled spring (12, 12a).
Claim 3
Dependent Claim
50 words
The annular axially resilient coiled spring seal according to claim 1 wherein said annular seal means (16) includes means defining a cavity (114) for supporting and orienting said garter-type axially resilient coiled spring (12, 12a) with a turn angle ϑ of greater than zero degrees and less than 90 degrees.
Claim 4
Dependent Claim
26 words
The annular axially resilient coiled spring according to claim 2 wherein the turn angle ϑ is selected to provide a load-deflection characteristics having a saddle shape.
Claim 5
Dependent Claim
21 words
The annular axially resilient coiled spring according to claim 3 wherein the turn angle ϑ is greater than about 15 degrees.
Claim 6
Dependent Claim
21 words
The annular axially resilient coiled spring according to claim 3 wherein the turn angel ϑ is greater than about 60 degrees.
Claim 7
Dependent Claim
48 words
The garter-type axially resilient coiled spring according to claim 3 wherein the trailing portion (50) is disposed along an outside diameter of the garter-type axially resilient coiled spring (12a) and the leading portion (62) is disposed along an inside diameter of the garter-type axially resilient coiled spring (12a).
Claim 8
Dependent Claim
48 words
The garter-type axially resilient coiled spring according to claim 3 wherein the leading portion (50) is disposed along an inside diameter of the garter-type axially resilient coiled spring (12) and the leading portion (62) is disposed along an outside diameter of the garter-type axially resilient coiled spring (12a).
Claim 9
Dependent Claim
24 words
The garter-type axially resilient coiled spring according to claim 6 or 7 wherein the back angle means is between one degree and 45 degrees.
Claim 10
Dependent Claim
20 words
The garter-type axially resilient coiled spring according to claim 8 wherein the front angle means is less than 35 degrees.
Claim 11
Dependent Claim
145 words
A garter-type axially resilient coiled spring comprising: a plurality of coils (14) canted along a centerline (56) thereof; back angle means for both defining the disposition of a trailing portion (50) of each coil (14) with respect to a line (54, 64) normal to the centerline and for determining the load-deflection characteristics of the garter-type axially resilient coiled spring (12, 12a); front angle means for defining the disposition of a leading portion (62) of each coil with respect to the normal line (54, 64), said front angle means being greater than said back angle means; said coils (14) being interconnected in a manner forming a garter-type axially resilient coiled spring (10, 12, 12a), said garter-type axially resilient coiled spring (10, 12, 12a) having an orientation defined by a turn angle ϑ, said turn angle ϑ being greater than zero degrees and less than 90 degrees.
Claim 12
Dependent Claim
145 words
A garter-type axially resilient coiled spring comprising: a plurality of coils (14) canted along a centerline (56) thereof; back angle means for both defining the disposition of a trailing portion (50) of each coil (14) with respect to a line (54, 64) normal to the centerline and for determining the load-deflection characteristics of the garter-type axially resilient coiled spring (12, 12a); front angle means for defining the disposition of a leading portion (62) of each coil with respect to the normal line (54, 64), said front angle means being greater than said back angle means; said coils (14) being interconnected in a manner forming a garter-type axially resilient coiled spring (10, 12, 12a), said garter-type axially resilient coiled spring (10, 12, 12a) having an orientation defined by a turn angle ϑ, said turn angle ϑ being greater than zero degrees and less than 90 degrees.
References Cited (Backward Citations)
No citation records indexed.
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