US4119937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal base resistor
Assignee: Individual
•
Filing: 1976-11-08
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Granted: 1978-10-10
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Expires: 1996-11-08
Abstract
Abstract A resistor, which can be of either the fixed or variable type, having a metal base covered by an insulating coating over all but an exposed area of the metal. A film type resistive compound or a wire winding covers the insulating coating but overruns it in the exposed area of the metal base and is bonded to the metal base. A suitable conventional terminal member is in conductive relation to the resistive compound covering at a point remote from the exposed area of the base so that the base, itself, may function as one terminal for the resistor.
Inventors
- 👤 Myron F. Melvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:37
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32; H01C1/00; H01C1/01; H01C1/012
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
84 words
A film type resistor comprising a metal base, an electrically insulating coating overlying all but a predetermined exposed portion of the metal base, a continuous resistive film deposited in overlying relation to said insulating coating, said film overrunning said insulating coating only at said exposed portion of said metal base and being conductively bonded thereto, and a terminal element remote from said base-bonded portion of the film having electrical contact therewith, whereby said base and said terminal element function as terminals for the resistor.
Claim 2
Dependent Claim
84 words
A film type resistor comprising a metal base, an electrically insulating coating overlying all but a predetermined exposed portion of the metal base, a continuous resistive film deposited in overlying relation to said insulating coating, said film overrunning said insulating coating only at said exposed portion of said metal base and being conductively bonded thereto, and a terminal element remote from said base-bonded portion of the film having electrical contact therewith, whereby said base and said terminal element function as terminals for the resistor.
Claim 3
Dependent Claim
42 words
A film type resistor as claimed in claim 1 in which said metal base takes the form of an elongated metal rod with said exposed portion disposed at one end thereof and said terminal element adjacent the opposite end of said rod.
Claim 4
Dependent Claim
26 words
A film type resistor as claimed in claim 2 in which one end of said metal rod is adapted to mount said resistor on a panel.
Claim 5
Dependent Claim
35 words
A film type resistor as claimed in claim 2 in which said insulating coating covers all of said metal rod except the marginal area at one of its ends, this area forming said exposed portion.
Claim 6
Dependent Claim
45 words
A film type resistor as claimed in claim 1 in which said metal base is generally disc-shaped and said resistive film is disposed in a generally flat circular configuration, the center of said base being adapted to receive a wiper arm engaging said resistive film.
Claim 7
Dependent Claim
29 words
A film type resistor as claimed in claim 5 in which an integral tab extends outwardly from said disc-shaped base and forms said exposed portion of the metal base.
Claim 8
Dependent Claim
40 words
A film type resistor as claimed in claim 1 in which said metal base is generally disc-shaped and said insulating coating is disposed in a generally annular configuration thereon, said resistive film overlying an arcuate portion of said insulating coating.
Claim 9
Dependent Claim
44 words
A film type resistor as claimed in claim 7 in which an integral tab extends outwardly from said disc-shaped base and forms said exposed portion of the metal base, and in which said resistive film overruns said insulating coating and extends onto said tab.
Claim 10
Dependent Claim
84 words
A resistor comprising a metal base, an electrically insulating coating overlying all but a predetermined exposed portion of the metal base, a continuous resistive conductor disposed in overlying relation to said insulating coating, said conductor overrunning said insulating coating only at said exposed portion of said metal base and being conductively bonded thereto, and a terminal element remote from said base-bonded portion of said conductor having electrical contact with said conductor, whereby said base and said terminal element function as terminals for the resistor.
Claim 11
Dependent Claim
84 words
A resistor comprising a metal base, an electrically insulating coating overlying all but a predetermined exposed portion of the metal base, a continuous resistive conductor disposed in overlying relation to said insulating coating, said conductor overrunning said insulating coating only at said exposed portion of said metal base and being conductively bonded thereto, and a terminal element remote from said base-bonded portion of said conductor having electrical contact with said conductor, whereby said base and said terminal element function as terminals for the resistor.
References Cited (Backward Citations)
US2216375A
Cited
US3872419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |