Patent US4964204A successfully refreshed from Google Patents.
US4964204A
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US
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Method for making a garter-type axially-resilient coil spring
Assignee: Bal Seal Engineering LLC
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Filing: 1989-09-05
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Granted: 1990-10-23
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Expires: 2009-09-05
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. Specific resilient performance, or load-deflection characteristics, of the spring is obtained by interconnecting the coils in a manner such that the trailing portion is disposed along an outside diameter of the garter-type axially resilient coil spring and the leading portion is disposed along an inside diameter of the garter-type axially resilient coil spring.
Inventors
- 👤 Peter J. Balsells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:54
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; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49609
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
166 words
A method for making garter-type axially resilient coiled spring comprising the steps of: fabricating by winding a metallic 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, in a range from greater than 0 to 35 degrees, 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 the trailing portion along the outside diameter of the garter-type axially resilient coiled spring and the leading portion along the inside diameter of the garter-type axially resilient coiled spring.
Claim 2
Independent Claim
166 words
A method for making garter-type axially resilient coiled spring comprising the steps of: fabricating by winding a metallic 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, in a range from greater than 0 to 35 degrees, 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 the trailing portion along the outside diameter of the garter-type axially resilient coiled spring and the leading portion along the inside diameter of the garter-type axially resilient coiled spring.
Claim 3
Dependent Claim
29 words
The method according to claim 1 wherein the wire is fabricated in a counterclockwise direction and the coils are canted in a counterclockwise direction with respect to the centerline.
Claim 4
Dependent Claim
31 words
The method according to claim 1 wherein the back angle is adjusted to determine the maximum load and the total deflection maximum load point o the garter-type axially resilient coiled spring.
Claim 5
Dependent Claim
18 words
The method according to claim 3 wherein the front angle is held constant while adjusting the back angle.
Claim 6
Dependent Claim
36 words
The method according to claim 1 wherein the back angle is made greater than one degree and less than 40 degrees and the front angle is made greater than 15 degrees and less than 55 degrees.
Claim 7
Dependent Claim
16 words
The method according to claim 1 wherein the back angle is made less than 25 degrees.
Claim 8
Dependent Claim
18 words
The method according to claim 1 or 6 wherein the front angle is made less than 35 degrees.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |