US5161427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly(amide-imide) liner
Assignee: Teleflex Inc
•
Filing: 1991-11-08
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Granted: 1992-11-10
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Expires: 2011-11-08
Abstract
Abstract A motion transmitting remote control assembly (10) for transmitting motion in a curved path including a liner (12) disposed within a conduit (16) and a motion transmitting core element (14) moveably supported by the liner (12). The liner (12) is made essentially of polytetrafluoroethylene (PTFE). The assembly (10) is characterized by the liner (12) further including poly(amide-imide) for increasing the strength and lubricity thereof. Preferably, the liner comprises 97 weight percent polytetrafluoroethylene and 3 weight percent poly(amide-imide).
Inventors
- 👤 Diane P. Fukuda
- 👤 Arthur S. Eldredge, Jr.
- 👤 Thomas F. Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:56
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/26; F16C1/262; Y; Y10; Y10S; Y10S464/00; Y10S464/902; Y10S464/903; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/139; Y10T428/1393; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2045; Y10T74/20456
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A remote control assembly (10) of the type for transmitting motion in a curved path, said assembly (10) comprising: a conduit (11); a liner (12) made of a fluorocarbon polymer disposed in said conduit (11); and a core element (14) adapted for movement within said liner (12), said assembly (10) characterized by said liner (12) including poly(amide-imide) dispersed substantially uniformly throughout the fluorocarbon polymer for increasing the strength and lubricity of the liner (12), said liner (12) comprising between 75 weight percent and 99 weight percent fluorocarbon polymer and between 25 weight percent and one weight percent poly(amide-imide) respectively.
Claim 2
Dependent Claim
99 words
A remote control assembly (10) of the type for transmitting motion in a curved path, said assembly (10) comprising: a conduit (11); a liner (12) made of a fluorocarbon polymer disposed in said conduit (11); and a core element (14) adapted for movement within said liner (12), said assembly (10) characterized by said liner (12) including poly(amide-imide) dispersed substantially uniformly throughout the fluorocarbon polymer for increasing the strength and lubricity of the liner (12), said liner (12) comprising between 75 weight percent and 99 weight percent fluorocarbon polymer and between 25 weight percent and one weight percent poly(amide-imide) respectively.
Claim 3
Dependent Claim
34 words
An assembly as set forth in claim 1 wherein said liner (12) comprises between 90 weight percent and 97 weight percent fluorocarbon polymer and between 10 weight percent and 3 weight percent poly(amide-imide) respectively.
Claim 4
Dependent Claim
23 words
An assembly as set forth in claim 2 wherein said liner (12) comprises 97 weight percent fluorocarbon polymer and 3 weight percent poly(amide-imde).
Claim 5
Dependent Claim
14 words
An assembly as set forth in claim 1 wherein said fluorocarbon polymer is polytetrafluoroethylene.
Claim 6
Dependent Claim
26 words
An assembly as set forth in claim 1 wherein said conduit (11) comprises a plurality of long lay wires (18) having a casing (16) extruded thereabout.
Claim 7
Dependent Claim
24 words
An assembly as set forth in claim 5 wherein said assembly (10) includes mounting means for mounting said conduit (11) to a support structure.
Claim 8
Dependent Claim
21 words
An assembly as set forth in claim 6 wherein said mounting means comprises a flange (20) extending from said conduit (11).
References Cited (Backward Citations)
US2626223A
Cited
US2946763A
Cited
US3150207A
Cited
US3369426A
Cited
GB1207304A
Cited
US3434501A
Cited
US3555113A
Cited
US3554050A
Cited
US4143204A
Cited
US4088156A
Cited
US4099425A
Cited
US4026863A
Cited
US4112708A
Cited
US4139576A
Cited
US4362069A
Cited
US4451616A
Cited
US4300408A
Cited
US4478913A
Cited
US4390590A
Cited
US4666762A
Cited
US4599383A
Cited
US4703075A
Cited
EP0313416A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-10 | 1996-05-11 | 1996-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-10 | 2000-05-11 | 2000-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-10 | 2004-05-11 | 2004-11-10 | $7700.00 | Window Closed / Lapsed |