Patent US5156384A successfully refreshed from Google Patents.
Patent US5945217A successfully refreshed from Google Patents.
US5945217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally conductive polytrafluoroethylene article
Assignee: W.L. Gore and Associates Inc
•
Filing: 1997-10-14
•
Granted: 1999-08-31
•
Expires: 2017-10-14
Abstract
Abstract A thermally conductive composite article is provided having a PTFE material or a PTFE matrix material which has disposed therein thermally conductive particles, and a phase change material.
Inventors
- 👤 James R. Hanrahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:59
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10W40/73; H10W40/735; Y; Y02; Y02E; Y02E60/00; Y02E60/14; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
32 words
An article comprising: a polytetrafluoroethylene (PTFE) material; thermally conductive particles; and a phase change material capable of storing thermal energy as latent heat of a phase change of said phase change material.
Claim 2
Dependent Claim
32 words
An article comprising: a polytetrafluoroethylene (PTFE) material; thermally conductive particles; and a phase change material capable of storing thermal energy as latent heat of a phase change of said phase change material.
Claim 3
Dependent Claim
18 words
An article comprising: a heat sink; a polytetrafluoroethylene PTFE material; thermally conductive particles; and a phase change material.
Claim 4
Dependent Claim
18 words
An article comprising: a heat sink; a polytetrafluoroethylene PTFE material; thermally conductive particles; and a phase change material.
Claim 5
Dependent Claim
35 words
An article comprising: a heat sink; an electronic component; a polytetrafluoroethylene PTFE material; thermally conductive particles; and a phase change material; wherein the PTFE material is disposed between the heat sink and the electronic component.
Claim 6
Dependent Claim
35 words
An article comprising: a heat sink; an electronic component; a polytetrafluoroethylene PTFE material; thermally conductive particles; and a phase change material; wherein the PTFE material is disposed between the heat sink and the electronic component.
Claim 7
Dependent Claim
33 words
An article comprising: a polytetrafluoroethylene PTFE matrix material; thermally conductive particles; and a phase change material; wherein the thermally conductive particles and the phase change material are disposed within the PTFE matrix material.
Claim 8
Dependent Claim
33 words
An article comprising: a polytetrafluoroethylene PTFE matrix material; thermally conductive particles; and a phase change material; wherein the thermally conductive particles and the phase change material are disposed within the PTFE matrix material.
Claim 9
Dependent Claim
80 words
The article of claims 1, 2, 3, or 4, wherein the thermally conductive particles are selected from a group consisting of: metals; aluminum (Al); copper (Cu); nickel (Ni); silver (Ag); and Zinc (Zn); metal beads; metal powders; metal fibers; metal coated fibers; metal flakes; metal coated metals; metal coated ceramics; metal coated glass bubbles; metal coated glass beads; metal coated flakes; metal coated spheres; zinc oxide; aluminum oxide; boron nitride (BN); aluminum nitride (ALN); diamond powder; and silicon carbide (SiC).
Claim 10
Dependent Claim
45 words
The article of claims 1, 2, 3, or 4, wherein the phase change material is selected from a group consisting of: salt hydrates, naphthalene, crystalline paraffins, non-paraffin organics, beeswax, oxazaline wax, crystalline polymers, high density polyethylene, solid polyhydric alcohols, fatty acids, and fatty acid esters.
Claim 11
Dependent Claim
45 words
The article of claims 1, 2, 3, or 4, wherein the phase change material is a material which changes state from a solid to a liquid or from a liquid to a solid within a temperature range of about 10° C. to about 90° C.
Claim 12
Dependent Claim
31 words
An article comprising: a polytetrafluoroethylene PTFE material; thermally conductive particles; and a phase change material; wherein the thermally conductive particles and the phase change material are disposed within the PTFE material.
Claim 13
Dependent Claim
31 words
An article comprising: a polytetrafluoroethylene PTFE material; thermally conductive particles; and a phase change material; wherein the thermally conductive particles and the phase change material are disposed within the PTFE material.
References Cited (Backward Citations)
US2893105A
Cited
US3953566A
Cited
US4291775A
Cited
US4720400A
Cited
US4557957A
Cited
US4615933A
Cited
JPS6140328A
Cited
US4962136A
Cited
JPS61174700A
Cited
JPS62100539A
Cited
US4891407A
Cited
US4888234A
Cited
US5071609A
Cited
WO1988004982A1
Cited
US4945125A
Cited
US5066683A
Cited
US4859383A
Cited
EP0302596A1
Cited
US4756958A
Cited
US4856294A
Cited
US4856294B1
Cited
US4857668A
Cited
US4840838A
Cited
US4931479B1
Cited
US4931479A
Cited
US4972846A
Cited
US5028739A
Cited
US5045635A
Cited
SU1724739A1
Cited
CN1053932A
Cited
US5130024A
Cited
US5105056A
Cited
US5294270A
Cited
US5286568A
Cited
JPH04335044A
Cited
WO1993000390A1
Cited
WO1993000163A1
Cited
US5401901A
Cited
US5209967A
Cited
US5202536A
Cited
WO1994002257A2
Cited
WO1994019400A1
Cited
US5429869A
Cited
US5454471A
Cited
US5545473A
Cited
US5591034A
Cited
US5736216A
Cited
US5519172A
Cited
US5738936A
Cited
US5800491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-08-30 | 2003-03-01 | 2003-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-30 | 2007-03-01 | 2007-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-30 | 2011-03-01 | 2011-08-31 | $7700.00 | Window Closed / Lapsed |