公开(公告)号：US3601722A

公开(公告)日：1971-08-24

申请号：US3601722D

申请日：1969-04-04

Applicant: INT STANDARD ELECTRIC CORP

Inventor： ROLF HELMUT

IPC: H03J1/06 ,  H03J5/04 ,  H03J5/08

CPC classification number: H03J1/066

Abstract: A tuning arrangement for television receivers including a support, a rotary selector having predetermined fixed positions into which said selector may be set mounted on said support, a first tuning button having a beveled gear at one end thereof mounted on said selector, a plurality of stationary potentiometers mounted concentrically with said selector, one being opposite each of said fixed positions and each having a gear associated therewith for engagement with, and adjustment by said button, said button being movable into and out of engagement with the potentiometers, and a second tuning button, having a screwdriver end, mounted on said support, a plurality of rotatable cams controlling the position of a range selector switch, said cams mounted concentrically with said selector, one being opposite each of said fixed positions and being associated with one of said stationary potentiometers, and each having slot means associated therewith for engagement with, and adjustment by said second button, said second button being movable into and out of engagement with said cams.

公开(公告)号：US3648208A

公开(公告)日：1972-03-07

申请号：US3648208D

申请日：1970-02-03

Applicant: INT STANDARD ELECTRIC CORP

Inventor： ROLF HELMUT

IPC: H01F5/02 ,  H01F27/30

CPC classification number: H01F5/02

Abstract: A double-flanged coil form with a hollow core part is provided with an uninterrupted slot running through the core part in axial direction and through the flanges in the radial direction. The slot is as broad as the diameter or the breadth of the core part. The coil form can be die-cast or molded as a whole, avoiding the use of slides and a put-in core.

Abstract translation: 具有中空芯部的双凸缘线圈形式具有沿轴向穿过芯部的不间断槽，并沿径向方向穿过凸缘。 槽的宽度与芯部的直径或宽度一样宽。 线圈形式可以整体压铸或模制，避免使用滑块和放入芯。

公开(公告)号：US3568126A

公开(公告)日：1971-03-02

申请号：US3568126D

申请日：1968-12-10

Applicant: INT STANDARD ELECTRIC CORP

Inventor： ARMONIER ULRICH ,  ABERGER NORBERT ,  ROLF HELMUT

IPC: H01C10/16 ,  H03J1/06 ,  H03J1/14 ,  H03J5/00 ,  H04N5/44 ,  H01C1/12 ,  H01C9/02

CPC classification number: H03J1/14 ,  H03J1/066

Abstract: A tuning arrangement for television receivers including a rotatable knob for coarse tuning of various stations to be received and having predetermined fixed positions into which said knob may be set, a single tuning button having beveled gear means at one end thereof mounted on said knob, a plurality of stationary potentiometers mounted concentrically with said knob, one being opposite each of said fixed positions, and each having gear means associated therewith for engagement with, and adjustment by, said button, said button further having spring return means enabling movement of said button into and out of engagement with the potentiometers.