US3662295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjusting device for a communications receiver
Assignee: Telefunken Electronic GmbH
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Filing: 1970-03-26
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Granted: 1972-05-09
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Expires: 1990-03-26
Abstract
Abstract An adjusting device for a communications receiver which comprises a plurality of potentiometers each having a plurality of resistance sections for different frequencies that can be moved over in succession by a movable wiper member. There is an actuator member for each potentiometer as well as a common frequency band changer device associated with a tuner in the receiver. The device is actuated by a linkage associated with said potentiometer between the movable wiper member, the actuator member and the frequency band changer device in dependence on the position of the movable wiper member when the actuator is operated.
Inventors
- 👤 Heribert Rummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:32
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/06; H03J1/066
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
159 words
An adjusting device for a tuner in a communications receiver that includes a frequency range switch and associated tunable circuit means, comprising a plurality of potentiometers rotatably supported in housing means, each potentiometer having a plurality of resistance sections corresponding to different frequency bands in the tuner and adapted to be selectively connected to the tunable circuit means, a movable wiper member adapted to move over said resistance sections in succession, an actuator member for actuating each said potentiometer, a frequency band changer device common to all potentiometers and connected to the frequency-range switch, mechanical linkage means, associated with each said potentiometer, between the associated movable wiper member, the associated actuator member and said frequency band changer device for actuating said frequency band changer device, said mechanical linkage means including a mechanical setting member displaceable variably by said movable wiper member in dependence on the position of said associated movable wiper member on operation of said associated actuator member.
Claim 2
Dependent Claim
159 words
An adjusting device for a tuner in a communications receiver that includes a frequency range switch and associated tunable circuit means, comprising a plurality of potentiometers rotatably supported in housing means, each potentiometer having a plurality of resistance sections corresponding to different frequency bands in the tuner and adapted to be selectively connected to the tunable circuit means, a movable wiper member adapted to move over said resistance sections in succession, an actuator member for actuating each said potentiometer, a frequency band changer device common to all potentiometers and connected to the frequency-range switch, mechanical linkage means, associated with each said potentiometer, between the associated movable wiper member, the associated actuator member and said frequency band changer device for actuating said frequency band changer device, said mechanical linkage means including a mechanical setting member displaceable variably by said movable wiper member in dependence on the position of said associated movable wiper member on operation of said associated actuator member.
Claim 3
Dependent Claim
76 words
Device as defined in claim 1, wherein each of said potentiometers comprises a rotary potentiometer having a plurality of resistance segments each associated with a different frequency band in the tuner, connecting lines for said individual segments, said lines being connected to the tunable circuit means in the associated tuner and said movable wiper member is a rotatable member which includes a cam track for actuating the frequency band changer device through said mechanical setting member.
Claim 4
Dependent Claim
41 words
A device as defined in claim 2 wherein each said movable wiper member comprises a disc defining said cam track in a plane surface thereof and wherein said mechanical setting member carries a pin which is engaged in said cam track.
Claim 5
Dependent Claim
39 words
A device as defined in claim 2, wherein each said movable wiper member comprises a cup, a wiper mounted in the interior of said cup and said cam track positioned at the outside of the bottom of said cup.
Claim 6
Dependent Claim
60 words
A device as defined in claim 3 further comprises a shaft means supporting said potentiometers and on which each said movable wiper member rotates, each of said mechanical setting members being guided for sliding movement over said shaft means by a slot defined therein, and guide means in said housing means through which each of said mechanical setting members projects.
Claim 7
Dependent Claim
58 words
A device as defined in claim 3 wherein said pin is concentric with a shaft means of the axis of rotation of said movable wiper member, said mechanical setting member being guided for sliding movement over said shaft means by a slot defined therein, and guide means for each of said mechanical setting members in said housing means.
Claim 8
Dependent Claim
66 words
A device as defined in claim 5, wherein said frequency band changer device includes a slide member associated with each potentiometer, means for guiding said slide in said mechanical setting member for displacement transversely with respect to the direction of sliding of said mechanical setting member, and wherein said actuator member includes a push-button slide, and means for coupling said slide member with said push-button slide.
Claim 9
Dependent Claim
29 words
A device as defined in claim 7, wherein said coupling means comprises an extension on said pushbutton slide and a slot in said slide member engaged by said extension.
Claim 10
Dependent Claim
52 words
A device as defined in claim 8, wherein said frequency band changer device includes an element for actuatIng the frequency-range switch and wherein an inclined terminal edge on each of said slide members is designed to bear against and actuate said element when an associated push-button is depressed on a push-button slide.
Claim 11
Dependent Claim
54 words
A device as defined in claim 9 wherein each potentiometer includes a toothed rim on said movable wiper member, a drive portion engagement with said toothed rim when a push-button is depressed and a portion on said push-button slide being bent away obliquely therefrom to engage said drive portion when said push-button is depressed.
References Cited (Backward Citations)
US3440544A
Cited
US3528043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |