US4961253A
Expired / Lapsed
US
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Manufacturing method for canted-coil spring with turn angle and seal
Assignee: Bal Seal Engineering LLC
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Filing: 1988-12-13
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Granted: 1990-10-09
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Expires: 2008-12-13
Abstract
Abstract A garter-type axially resilient coil spring includes a plurality of coils canted along a centerline thereof with each coil 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-characteristics, of the springs are obtained by controlling a turn angle of the coil spring. At selected turn angles, springs exhibit a resilient working area bounded by steep load-deflection characteristics.
Inventors
- 👤 Peter J. Balsells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:32
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/08; F16J15/0887; F16J15/0893; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/045; F16J15/021; F16J15/022; F16J15/024; F16J15/025; F16J15/16; F16J15/34; F16J15/3436; F16J15/344; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49609
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
158 words
A method for making a garter-type axially resilient coiled spring comprising the steps of: fabricating a wire to produce coils canted with respect to a centerline of the garter-type axially resilient coiled spring, each coil having a leading portion and trailing portion, said leading portion being disposed at a front angle to a line normal to a centerline of the garter-type axially resilient coiled spring and said trailing portion being disposed at a back angle to the normal line; during fabricating of the wire, adjusting the magnitude of the back angle in order to achieve preselected load-deflection characteristics of the garter-type axially resilient coiled spring; and attaching two ends of the wound wire in a manner forming a garter-type axially resilient coiled spring with an orientation defined by a turn angle in order to achieve selected load-deflection characteristics of the garter-type axially resilient coiled spring, said turn angle being greater than zero degrees and less than 90 degrees.
Claim 2
Independent Claim
158 words
A method for making a garter-type axially resilient coiled spring comprising the steps of: fabricating a wire to produce coils canted with respect to a centerline of the garter-type axially resilient coiled spring, each coil having a leading portion and trailing portion, said leading portion being disposed at a front angle to a line normal to a centerline of the garter-type axially resilient coiled spring and said trailing portion being disposed at a back angle to the normal line; during fabricating of the wire, adjusting the magnitude of the back angle in order to achieve preselected load-deflection characteristics of the garter-type axially resilient coiled spring; and attaching two ends of the wound wire in a manner forming a garter-type axially resilient coiled spring with an orientation defined by a turn angle in order to achieve selected load-deflection characteristics of the garter-type axially resilient coiled spring, said turn angle being greater than zero degrees and less than 90 degrees.
Claim 3
Dependent Claim
52 words
The method of claim 1 wherein the two ends of the wound wire are attached forming a garter-type axially resilient coiled spring with the trailing portion along the inside diameter of the garter-type axially resilient coiled spring and the leading portion along the outside diameter of the garter-type axially resilient coiled spring.
Claim 4
Dependent Claim
22 words
The method of claim 2 wherein the magnitude of back angle is adjusted to between about one degree and about 45 degrees.
Claim 5
Dependent Claim
18 words
The method of claim 3 wherein the magnitude front angle is adjusted to less than about 35 degrees.
Claim 6
Dependent Claim
20 words
The method of claim 1 wherein the turn angle is selected to provide a load-deflection characteristics having a saddle shape.
Claim 7
Dependent Claim
15 words
The method of claim 5 wherein the turn angle is greater than about 15 degrees.
Claim 8
Dependent Claim
15 words
The method of claim 5 wherein the turn angle is greater than about 60 degrees.
Claim 9
Dependent Claim
52 words
The method of claim 1 wherein the two ends of the wound wire are attached forming a garter-type axially resilient coiled spring with the leading portion along the inside diameter of the garter-type axially resilient coiled spring and the trailing portion along the outside diameter of the garter-type axially resilient coiled spring.
Claim 10
Independent Claim
198 words
A method for making a garter-type axially resilient coiled spring comprising the steps of: fabricating a wire to produce coils canted with respect to a centerline of the garter-type axially resilient coiled spring, each coil having a leading portion and a trailing portion, said leading portion being disposed at a front angle to a line normal to a centerline of the garter-type axially resilient coiled spring and said trailing portion being disposed at a back angle to the normal line; during fabricating of the wire, adjusting the magnitude of the back angle in order to achieve preselected load-deflection characteristics of the garter-type axially resilient coiled spring; and attaching two ends of the wound wire in a manner forming a garter-type axially resilient coiled spring with an orientation defined by a turn angle in order to achieve selected load-deflection characteristics of the garter-type axially resilient coiled spring, said turn angle being greater than zero degrees and less than 90 degrees; and disposing said garter-type axially resilient coiled spring in an annular seal having a cavity for supporting and orienting said garter-type axially resilient coiled spring with a turn angle of greater than zero degrees and less than 90 degrees.
Claim 11
Independent Claim
198 words
A method for making a garter-type axially resilient coiled spring comprising the steps of: fabricating a wire to produce coils canted with respect to a centerline of the garter-type axially resilient coiled spring, each coil having a leading portion and a trailing portion, said leading portion being disposed at a front angle to a line normal to a centerline of the garter-type axially resilient coiled spring and said trailing portion being disposed at a back angle to the normal line; during fabricating of the wire, adjusting the magnitude of the back angle in order to achieve preselected load-deflection characteristics of the garter-type axially resilient coiled spring; and attaching two ends of the wound wire in a manner forming a garter-type axially resilient coiled spring with an orientation defined by a turn angle in order to achieve selected load-deflection characteristics of the garter-type axially resilient coiled spring, said turn angle being greater than zero degrees and less than 90 degrees; and disposing said garter-type axially resilient coiled spring in an annular seal having a cavity for supporting and orienting said garter-type axially resilient coiled spring with a turn angle of greater than zero degrees and less than 90 degrees.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-10-08 | 1994-04-09 | 1994-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-08 | 1998-04-09 | 1998-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-08 | 2002-04-09 | 2002-10-09 | $7700.00 | Window Closed / Lapsed |