US4763665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded thermistor for microwave environment
Assignee: YSIS Inc
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Filing: 1987-06-17
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Granted: 1988-08-16
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Expires: 2007-06-17
Abstract
Abstract A thermistor assembly for use in an environment of microwave radiation employs an interface metallic layer on the surface of a plastic insulation its conductors and a metal foil wrapped upon the thermistor head. The metal foil overlaps the interface metallic layer on the conductors. A surface metallic layer is electroplated on both the interface metallic layer and the metal foil to unite both into a single electrically conducting layer effective to exclude microwave radiation from the interior thereof and thus to avoid direct microwave heating of the thermistor or the electrical conductors in the vicinity of the thermistor.
Inventors
- 👤 Frank Mascuch
- 👤 Arthur Winter
- 👤 Satish Laroia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:42
CPC Classifications
G; G12; G12B; G12B17/00; G12B17/02; A; A61; A61B; A61B18/00; A61B18/18; A61B18/1815; G01; G01K; G01K1/00; G01K1/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
A thermistor assembly comprising: a thermistor; said thermistor including a first insulating coating thereon; electrical conductors connected to said thermistor; a second insulating coating on said electrical conductors; said first and second insulating coating forming a continuous insulation; an interface metallic layer on said second insulating coating; an electrically conductive foil wrapped upon said thermistor and in overlapping electrical contact with a portion of said interface metallic layer; and a surface metallic layer on said interface metallic layer and said electrically conductive foil.
Claim 2
Dependent Claim
83 words
A thermistor assembly comprising: a thermistor; said thermistor including a first insulating coating thereon; electrical conductors connected to said thermistor; a second insulating coating on said electrical conductors; said first and second insulating coating forming a continuous insulation; an interface metallic layer on said second insulating coating; an electrically conductive foil wrapped upon said thermistor and in overlapping electrical contact with a portion of said interface metallic layer; and a surface metallic layer on said interface metallic layer and said electrically conductive foil.
Claim 3
Dependent Claim
15 words
A thermistor assembly according to claim 1 wherein said first insulating coating is a varnish.
Claim 4
Dependent Claim
16 words
A thermistor assembly according to claim 1 wherein said electrically conductive foil is an aluminum foil.
Claim 5
Dependent Claim
14 words
A thermistor assembly according to claim 1 wherein said surface metallic layer is gold.
Claim 6
Dependent Claim
22 words
A thermistor assembly according to claim 1 wherein said interface metallic layer is copper, sputtered in place upon said second insulating coating.
Claim 7
Dependent Claim
85 words
A thermistor assembly comprising: a thermistor; said thermistor including a varnish coating thereon; electrical conductors connected to said thermistor; a plastic layer on said electrical conductors; said varnish coating and said plastic layer forming a continuous insulation; an interface metallic layer of copper on said plastic layer; an aluminum foil wrapped upon said thermistor and in overlapping electrical contact with a portion of said interface metallic layer; and a surface metallic layer of gold electrically plated on said interface metallic layer and said aluminum foil.
Claim 8
Dependent Claim
85 words
A thermistor assembly comprising: a thermistor; said thermistor including a varnish coating thereon; electrical conductors connected to said thermistor; a plastic layer on said electrical conductors; said varnish coating and said plastic layer forming a continuous insulation; an interface metallic layer of copper on said plastic layer; an aluminum foil wrapped upon said thermistor and in overlapping electrical contact with a portion of said interface metallic layer; and a surface metallic layer of gold electrically plated on said interface metallic layer and said aluminum foil.
Claim 9
Independent Claim
89 words
A method for forming a shielding layer on a thermistor assembly comprising: forming a first insulating coating on a thermistor; forming a second insulating coating on electrical conductors connected to said thermistor; said first and second insulating coating forming a continuous insulation; sputtering an interface metallic layer on said second insulating coating; wrapping an electrically conductive foil upon said thermistor and in overlapping electrical contact with a portion of said interface metallic layer; and electroplating a surface metallic layer on said interface metallic layer and said electrically conductive foil.
Claim 10
Independent Claim
89 words
A method for forming a shielding layer on a thermistor assembly comprising: forming a first insulating coating on a thermistor; forming a second insulating coating on electrical conductors connected to said thermistor; said first and second insulating coating forming a continuous insulation; sputtering an interface metallic layer on said second insulating coating; wrapping an electrically conductive foil upon said thermistor and in overlapping electrical contact with a portion of said interface metallic layer; and electroplating a surface metallic layer on said interface metallic layer and said electrically conductive foil.
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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) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |