US3633146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistor of sliding type
Assignee: Panasonic Holdings Corp
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Filing: 1970-06-22
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Granted: 1972-01-04
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Expires: 1990-06-22
Abstract
Abstract A variable resistor of sliding type with switch means incorporated therein, which comprises a resistance element and a conductive element mounted on a dielectric base in parallel relation, a slider having a contactor which slides on the resistance element and the conductive element, and switch means adapted to break the electrical connection of the resistance element with an external circuit when the slider is close to either end of the dielectric base.
Inventors
- 👤 Nobuyuki Sasaki
- 👤 Shunzo Oka
- 👤 Tadashi Yano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/44; H01C10/50; H01H; H01H3/00; H01H3/02; H01H3/0213
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
A variable resistor of sliding type comprising a resistance element and a conductive element provided on a dielectric base in parallel relation, a slider having contactor and caused to move on said base with said contactor in sliding contact with said resistance element and said conductive element, switch means for breaking the electrical contact of said contactor of the slider with said resistance element or said conductive element when said slider is in a position adjacent either end of said dielectric base and thereby switching the electrical connection of said resistance element with an external circuit, and a box-shaped housing covering and supporting said slider on said dielectric base.
Claim 2
Dependent Claim
109 words
A variable resistor of sliding type comprising a resistance element and a conductive element provided on a dielectric base in parallel relation, a slider having contactor and caused to move on said base with said contactor in sliding contact with said resistance element and said conductive element, switch means for breaking the electrical contact of said contactor of the slider with said resistance element or said conductive element when said slider is in a position adjacent either end of said dielectric base and thereby switching the electrical connection of said resistance element with an external circuit, and a box-shaped housing covering and supporting said slider on said dielectric base.
Claim 3
Dependent Claim
65 words
A variable resistor of sliding type as defined in claim 1, wherein said switch means includes a switch contact member which is provided on said dielectric base at a location adjacent one end of said resistance element and adapted to push said contactor upwardly when the contactor is brought into engagement therewith, thereby to break the electrical contact of said contactor with said resistance element.
Claim 4
Dependent Claim
37 words
A variable resistor of sliding type as defined in claim 1, wherein said resistance element consists of a resistance layer and said switch means includes at least one electrical connection breaking space provided in said conductive element.
Claim 5
Dependent Claim
43 words
A variable resistor for sliding type as defined in claim 1, wherein said resistance element consists of one or a plurality of resistance layers and said switch means includes one or a plurality of electrical connection breaking spaces provided in said resistance layer.
Claim 6
Dependent Claim
44 words
A variable resistor of sliding type as defined in claim 1, wherein said switch means includes an electric insulation layer formed on a portion of said resistance element adjacent one end thereof and at least one switch contact member provided on said dielectric base.
Claim 7
Dependent Claim
43 words
A variable resistor of sliding type as defined in claim 1, wherein said switch means includes a conducting member provided on said resistance element at a location adjacent one end thereof, with an electric insulation layer intervening therebetween, for contact with said contactor.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |