US5257003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermistor and its method of manufacture
Assignee: QUALITY THERMISTOR Inc AN ID Corp
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Filing: 1992-01-14
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Granted: 1993-10-26
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Expires: 2012-01-14
Abstract
Abstract The invention is a thermistor comprising a thermistor element, a fixed product of a resistive film on an axial surface of the thermistor element and a conductor material on the terminal surfaces of the thermistor element. The fixed resistive film extends to the peripheral edges of the axial surface, thereby influencing conductance from the thermistor element except at its terminal ends.
Inventors
- 👤 John J. Mahoney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:03
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/006; H01C7/00; H01C7/008; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49101
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
87 words
A method for making a thermistor which comprises: (a) applying a single resistive film on a thermistor element to completely cover four axial surfaces thereof; (b) fixing the said thermistor element and applied resistive film to produce a fixed product of a resistive film completely covering said four axial surfaces of said thermistor element; (c) cutting the said thermistor element covered with fixed resistive film to produce terminal surfaces of thermistor element not covered with fixed resistive film; and (d) applying conductor material to said terminal surfaces.
Claim 2
Independent Claim
87 words
A method for making a thermistor which comprises: (a) applying a single resistive film on a thermistor element to completely cover four axial surfaces thereof; (b) fixing the said thermistor element and applied resistive film to produce a fixed product of a resistive film completely covering said four axial surfaces of said thermistor element; (c) cutting the said thermistor element covered with fixed resistive film to produce terminal surfaces of thermistor element not covered with fixed resistive film; and (d) applying conductor material to said terminal surfaces.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein the resistive film is of a dielectric material.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein the resistive film is of an insulator material.
Claim 5
Dependent Claim
14 words
The method of claim 1 wherein the resistive film is of a resistor material.
Claim 6
Dependent Claim
18 words
The method of claim 1 wherein the resistive film comprises discrete layers of dielectric, insulator or resistor material.
Claim 7
Dependent Claim
18 words
The method of claim 1 wherein the resistive film comprises a pattern of dielectric, insulator or resistor material.
Claim 8
Dependent Claim
18 words
The method of claim 1 wherein the conductor material comprises discrete layers of more or less conductive materials.
Claim 9
Dependent Claim
18 words
The method of claim 1 wherein the conductor material comprises a pattern of more or less conductive materials.
Claim 10
Dependent Claim
20 words
The method of claim 1, which also comprises applying protective plating material on the outer surfaces of said conductor material.
Claim 11
Independent Claim
86 words
A method for making a thermistor which comprises: (a) providing a thermistor element with four axial surfaces and at least two (2) terminal surfaces; (b) applying a single resistive film on all the axial surfaces to completely cover the said axial surfaces up to the peripheral edges thereof; (c) fixing the said thermistor element and applied resistive film to produce a fixed product of a resistive film completely covering said four axial surfaces of said thermistor element; and (d) applying conductor material to said terminal surfaces.
Claim 12
Independent Claim
86 words
A method for making a thermistor which comprises: (a) providing a thermistor element with four axial surfaces and at least two (2) terminal surfaces; (b) applying a single resistive film on all the axial surfaces to completely cover the said axial surfaces up to the peripheral edges thereof; (c) fixing the said thermistor element and applied resistive film to produce a fixed product of a resistive film completely covering said four axial surfaces of said thermistor element; and (d) applying conductor material to said terminal surfaces.
Claim 13
Dependent Claim
14 words
The method of claim 10 wherein the resistive film is of a dielectric material.
Claim 14
Dependent Claim
14 words
The method of claim 10 wherein the resistive film is of an insulator material.
Claim 15
Dependent Claim
14 words
The method of claim 10 wherein the resistive film is of a resistor material.
Claim 16
Dependent Claim
18 words
The method of claim 10 wherein the resistive film comprises discrete layers of dielectric, insulator or resistor material.
Claim 17
Dependent Claim
18 words
The method of claim 10 wherein the resistive film comprises a pattern of dielectric, insulator or resistor material.
Claim 18
Dependent Claim
18 words
The method of claim 10 wherein the conductor material comprises discrete layers of more or less conductive materials.
Claim 19
Dependent Claim
18 words
The method of claim 10 wherein the conductor material comprises a pattern of more or less conductive materials.
Claim 20
Dependent Claim
20 words
The method of claim 10, which also comprises applying protective plating material on the outer surfaces of said conductor material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-10-25 | 1997-04-26 | 1997-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-25 | 2001-04-26 | 2001-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-25 | 2005-04-26 | 2005-10-26 | $7700.00 | Window Closed / Lapsed |