US3671915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding type variable resistor
Assignee: Panasonic Holdings Corp
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Filing: 1971-01-26
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Granted: 1972-06-20
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Expires: 1991-01-26
Abstract
Abstract A sliding type variable resistor having a resistance element and a conductive element mounted in parallel with each other on a dielectric base, a slider having a conductor on its lower surface, a guide rail for guiding the sliding movement of the slider, a housing covering the dielectric base for accommodating thereinside the slider and the guide rail, and an operating means fixed to the slider and projecting to the exterior through a slot in the upper wall of the housing. In the variable resistor, supporting pedestals are provided at longitudinal opposite end portions of the dielectric base for supporting the opposite ends of the guide rail thereby to ensure smooth and stable sliding movement of the slider.
Inventors
- 👤 Nobuyuki Sasaki
- 👤 Shunzo Oka
- 👤 Tadashi Yano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:38
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/44
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
182 words
A sliding type variable resistor comprising a dielectric base mounting a resistance element and a conductive element thereon and provided with guide rail supporting means adjacent to the longitudinal opposite ends thereof, a slider, a conductor of electrically conductive resilient material fixed to the lower surface of said slider for sliding contact with the surface of said resistance element and said conductive element, an operating means fixed to the upper surface of said slider, at least one guide rail fixedly supported at its opposite ends by said guide rail supporting means for guiding the sliding movement of said slider, a housing of metal material fixed to said dielectric base to cover the upper surface of said dielectric base for accommodating there inside said slider, said guide rail supporting means and said guide rail, and means provided inside of said housing for holding said guide rail in place with respect to said guide rail supporting means, said housing having an elongated slot in its upper wall so that said operating means fixed to said slider can protrude to the exterior from said slot.
Claim 2
Dependent Claim
182 words
A sliding type variable resistor comprising a dielectric base mounting a resistance element and a conductive element thereon and provided with guide rail supporting means adjacent to the longitudinal opposite ends thereof, a slider, a conductor of electrically conductive resilient material fixed to the lower surface of said slider for sliding contact with the surface of said resistance element and said conductive element, an operating means fixed to the upper surface of said slider, at least one guide rail fixedly supported at its opposite ends by said guide rail supporting means for guiding the sliding movement of said slider, a housing of metal material fixed to said dielectric base to cover the upper surface of said dielectric base for accommodating there inside said slider, said guide rail supporting means and said guide rail, and means provided inside of said housing for holding said guide rail in place with respect to said guide rail supporting means, said housing having an elongated slot in its upper wall so that said operating means fixed to said slider can protrude to the exterior from said slot.
Claim 3
Dependent Claim
201 words
A sliding type variable resistor comprising a dielectric base mounting a resistance element and a conductive element thereon and provided with guide rail supporting means adjacent to the longitudinal opposite ends thereof, a slider, a conductor of electrically conductive resilient material fIxed to the lower surface of said slider for sliding contact with the surface of said resistance element and said conductive element an operating means fixed to the upper surface of said slider, at least one guide rail fixedly supported at its opposite ends by said guide rail supporting means for guiding the sliding movement of said slider, a housing of metal material fixed to said dielectric base to cover the upper surface of said dielectric base for accommodating there inside said slider, said guide rail supporting means and said guide rail, and a sliding spring disposed between the upper surface of said slider and the inside surface of the upper wall of said housing so as to slidably hold said slider between the upper wall of said housing and said guide rail, said housing having an elongated slot in its upper wall so that said operating means fixed to said slider can protrude to the exterior from said slot.
Claim 4
Dependent Claim
201 words
A sliding type variable resistor comprising a dielectric base mounting a resistance element and a conductive element thereon and provided with guide rail supporting means adjacent to the longitudinal opposite ends thereof, a slider, a conductor of electrically conductive resilient material fIxed to the lower surface of said slider for sliding contact with the surface of said resistance element and said conductive element an operating means fixed to the upper surface of said slider, at least one guide rail fixedly supported at its opposite ends by said guide rail supporting means for guiding the sliding movement of said slider, a housing of metal material fixed to said dielectric base to cover the upper surface of said dielectric base for accommodating there inside said slider, said guide rail supporting means and said guide rail, and a sliding spring disposed between the upper surface of said slider and the inside surface of the upper wall of said housing so as to slidably hold said slider between the upper wall of said housing and said guide rail, said housing having an elongated slot in its upper wall so that said operating means fixed to said slider can protrude to the exterior from said slot.
Claim 5
Dependent Claim
210 words
A sliding type variable resistor comprising a dielectric base mounting a resistance element and a conductive element thereon and provided with guide rail supporting means adjacent to the longitudinal opposite ends thereof, a slider, a conductor of electrically conductive resilient material fixed to the lower surface of said slider for sliding contact with the surface of said resistance element and said conductive element, an operating means fixed to the upper surface of said slider, at least one guide rail fixedly supported at its opposite ends by said guide rail supporting means for guiding the sliding movement of said slider, a housing of metal material fixed to said dielectric base to cover the upper surface of said dielectric base for accommodating there inside said slider, said guide rail supporting means and said guide rail, said housing being provided with lugs extending inwardly from the side walls adjacent to said guide rail supporting means for engaging the opposite ends of said guide rail from above thereby to press said guide rail against said guide rail supporting means to firmly fix said guide rail in place, said housing having an elongated slot in its upper wall so that said operating means fixed to said slider can protrude to the exterior from said slot.
Claim 6
Dependent Claim
210 words
A sliding type variable resistor comprising a dielectric base mounting a resistance element and a conductive element thereon and provided with guide rail supporting means adjacent to the longitudinal opposite ends thereof, a slider, a conductor of electrically conductive resilient material fixed to the lower surface of said slider for sliding contact with the surface of said resistance element and said conductive element, an operating means fixed to the upper surface of said slider, at least one guide rail fixedly supported at its opposite ends by said guide rail supporting means for guiding the sliding movement of said slider, a housing of metal material fixed to said dielectric base to cover the upper surface of said dielectric base for accommodating there inside said slider, said guide rail supporting means and said guide rail, said housing being provided with lugs extending inwardly from the side walls adjacent to said guide rail supporting means for engaging the opposite ends of said guide rail from above thereby to press said guide rail against said guide rail supporting means to firmly fix said guide rail in place, said housing having an elongated slot in its upper wall so that said operating means fixed to said slider can protrude to the exterior from said slot.
Claim 7
Dependent Claim
76 words
A sliding type variable resistor as claimed in claim 3, in which said guide rail is provided along each side surface of said slider, and said housing is provided with lugs extending inwardly from the side walls adjacent to said guide rail supporting means for engaging the opposite ends of these two guide rails from above, thereby to press said guide rails against said guide rail supporting means to firmly fix said guide rails in place.
Claim 8
Dependent Claim
61 words
A sliding type variable resistor as claimed in claim 3, in which a sliding spring having outwardly extending tongues engaging said guide rails is fitted on the lower end portion of said operating means so as to establish pressure engagement between said guide rails and said slider for ensuring smooth and stable sliding movement of said slider along said guide rails.
Claim 9
Dependent Claim
54 words
A sliding type variable resistor as claimed in claim 2, in which said guide rail is provided along each side surface of said slider, and a sliding spring is fixed to the upper surface of said slider so that it makes pressure engagement with the inside surface of the upper wall of said housing.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |