US4200857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistor
Assignee: Alps Alpine Co Ltd
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Filing: 1978-01-31
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Granted: 1980-04-29
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Expires: 1998-01-31
Abstract
Abstract A variable resistor suitable for use in the tone control of a stereo tape player or the like has two resistance bodies formed on an insulating substrate plate so as to oppose one another. Under one of the resistance bodies is formed a lead conductor, through an interposed insulating layer. The lead conductor is connected to one end of the associated resistance body and leads to the other end portion of this resistance body, so that the terminals of both resistance bodies can be located at the same side of the insulating substrate plate, thereby to diminish the size of the variable resistor.
Inventors
- 👤 Mikio Sato
- 👤 Kozo Magami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:25
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32; H01C10/34
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
145 words
A variable resistor comprising an electrically insulating substrate plate; a pair of opposing resistance bodies provided on said plate; means including a slide adapted to contact said resistance bodies for varying the resistance value between output terminals connected to respective ones of said resistance bodies; a lead conductor provided beneath one of said resistance bodies; an insulating layer provided between said lead conductor and said one resistance body, said lead conductor being connected to one end portion of said one resistance body and extending to the other end portion of said one resistance body, whereby, said terminals can be located at the same side of said plate; and further including conductive portions connected to respective end portions of said resistance bodies, the conductive portion connected to said one end portion of said one resistance body being constituted by an extended end of said lead conductor.
Claim 2
Dependent Claim
145 words
A variable resistor comprising an electrically insulating substrate plate; a pair of opposing resistance bodies provided on said plate; means including a slide adapted to contact said resistance bodies for varying the resistance value between output terminals connected to respective ones of said resistance bodies; a lead conductor provided beneath one of said resistance bodies; an insulating layer provided between said lead conductor and said one resistance body, said lead conductor being connected to one end portion of said one resistance body and extending to the other end portion of said one resistance body, whereby, said terminals can be located at the same side of said plate; and further including conductive portions connected to respective end portions of said resistance bodies, the conductive portion connected to said one end portion of said one resistance body being constituted by an extended end of said lead conductor.
Claim 3
Dependent Claim
48 words
A variable resistor according to claim 1, said slide slidably contacting a collector located between said resistance bodies and having two slide portions each slidably contacting respective resistance bodies, whereby the electrical resistance between the respective terminals of said resistance bodies and said collector can be varied equally.
Claim 4
Dependent Claim
180 words
A rotary variable resistor for varying the resistance value equally to each of a first and second output terminals, comprising a substrate plate formed from an electrically insulating material; two generally similar arcuate resistance bodies carried in opposing relationship by said substrate plate, said resistance bodies being isolated electrically from one another on said substrate plate; a slide slidably contacting a collecting body located between said two resistance bodies and having two slide portions adapted to slide in unison along respective ones of said resistance bodies; a first output terminal connected electrically to an adjacent end portion of one of said resistance bodies; a second output terminal connected electrically to the remote end portion of the other resistance body, said second output terminal being connected to said remote end portion by a lead conductor running beneath said other resistance body and interconnecting said second output terminal and said remote end portion, whereby the first and second output terminals can be located near one another; and an insulating layer provided between said lead conductor and said other resistance body lying thereover.
Claim 5
Dependent Claim
180 words
A rotary variable resistor for varying the resistance value equally to each of a first and second output terminals, comprising a substrate plate formed from an electrically insulating material; two generally similar arcuate resistance bodies carried in opposing relationship by said substrate plate, said resistance bodies being isolated electrically from one another on said substrate plate; a slide slidably contacting a collecting body located between said two resistance bodies and having two slide portions adapted to slide in unison along respective ones of said resistance bodies; a first output terminal connected electrically to an adjacent end portion of one of said resistance bodies; a second output terminal connected electrically to the remote end portion of the other resistance body, said second output terminal being connected to said remote end portion by a lead conductor running beneath said other resistance body and interconnecting said second output terminal and said remote end portion, whereby the first and second output terminals can be located near one another; and an insulating layer provided between said lead conductor and said other resistance body lying thereover.
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) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |