Luminous band display device

Claim 2

A luminous band display device for the thermometer scale-like display of the position of a control of an operating condition in a heating and ventilating system, the control being adjustable about its axis, comprising a plurality of light guides, each said light guide having an inlet end and an outlet end, the outlet ends of said light guides being arranged to form a row of luminous segments, luminous center means having a light source and a generally transparent electrical socket therearound, the inlet ends of said light guides being in optical connection with said luminous center means, cover means within said socket and between said light source and said inlet ends for modifying the light therefrom, means for rotating said cover means in accordance with the position of said control, at least one color filter, a portion of said color filter fixed on said cover means, the extent to which said color filter is fixed on said cover means being rotatably related to the position of said control, whereby said color filter intercepts and modifies light at a plurality of said inlet ends of said light guides corresponding to said control position, said color filter having a length corresponding to at least all of said light guide inlet ends, at least one opening in said socket for passing said color filter therethrough so that a portion of said color filter is outside said socket, guide means for guiding and projecting said color filter through said socket opening.

Claim 3

The luminous band display device in accordance with claim 1, characterized in that said electrical socket is generally cylindrical and said inlet ends of said light guides are arranged around only a portion of said socket circumference, said portion including at least about three fourths of said circumference.

Claim 4

The luminous band display device in accordance with claim 1, comprising an adjustable resistor carrying a slide spring and having a spring carrier, further characterized in that said control is a turning knob, and having catch means for making a functional connection of said turning knob with said spring carrier.

Claim 5

The luminous band display device in accordance with claim 1, comprising a rotary type switch carrying a slide spring and having a spring carrier, further characterized in that said control is a turning knob, and having catch means for making a functional connection of said turning knob with said spring carrier.

Claim 6

The luminous band display device in accordance with claims 3 or 4, characterized by a pulley connecting said turning knob and said spring carrier.

Claim 7

The luminous band display device in accordance with claims 3 or 4, characterized in that said turning knob has a light-transparent insert connected to and illuminated by the light source.

Claim 8

The luminous band display device in accordance with claims 3 or 4, characterized by a cord drive connecting said turning knob and said spring carrier.

Claim 9

The luminous band display device in accordance with claim 4, comprising means for slip-free connecting of said spring carrier with said cover.

Claim 10

The luminous band display device in accordance with claim 4, comprising means for slip-free connecting of a pulley with said cover.

Claim 11

The luminous band display device in accordance with claim 1 comprising a rotary type switch carrying a slide spring and having a spring carrier, said turning knob being directly coupled with said spring carrier.

Claim 12

The luminous band display device in accordance with claim 1, characterized in that said light guides are arranged in several planes around the periphery of said socket.

Claim 13

The luminous band display device in accordance with claim 11, characterized in that said light guides have respective paths whereby said luminous segments are positioned in one row.

Claim 14

The luminous band display device in accordance with claim 1, comprising a guided toothed rack operatively connected to an adjusting member, and wherein said control is in functional connection with said rack.

Claim 15

A luminous band display device for thermometer scale-like display of the position of a control of an operating condition in a heating and ventilating system, comprising a plurality of light guides, each said light guide having an inlet end and an outlet end, the outlet ends of said light guides being arranged to form a row of luminous segments, luminous center means having a light source and a generally transparent electrical socket therearound, the inlet ends of said light guides being in optical connection with said luminous center means, cover means within said socket and between said light source and said inlet ends for modifying the light therefrom, means for rotating said cover means in accordance with the position of said control, at least one color filter, a portion of said color filter fixed on said cover means, the extent to which said color filter is fixed on said cover means being rotatably related to the position of said control, whereby said color filter intercepts and modifies light at a plurality of said inlet ends of said light guides corresponding to said control position, said color filter having a length corresponding to at least all of said light guide inlet ends, at least one opening in said electrical socket for passing said color filter therethrough so that a portion of said color filter can be outside said socket, guide means for guiding and projecting said color filter through said socket opening, and a guide rail for guiding said control, whereby said control is a slide slidable in its longitudinal direction on said guide rail.

Claim 16

A luminous band display device for thermometer scale-like display of the position of a control of an operating condition in a heating and ventilating system, comprising a plurality of light guides, each said light guide having an inlet end and an outlet end, the outlet ends of said light guides being arranged to form a row of luminous segments, luminous center means having a light source and a generally transparent electrical socket therearound, the inlet ends of said light guides being in optical connection with said luminous center means, cover means within said socket and between said light source and said inlet ends for modifying the light therefrom, means for rotating said cover means in accordance with the position of said control, at least one color filter, a portion of said color filter fixed on said cover means, the extent to which said color filter is fixed on said cover means being rotatably related to the position of said control, whereby said color filter intercepts and modifies light at a plurality of said inlet ends of said light guides corresponding to said control position, said color filter having a length corresponding to at least all of said light guide inlet ends, at least one opening in said electrical socket for passing said color filter therethrough so that a portion of said color filter can be outside said socket, guide means for guiding and projecting said color filter through said socket opening, and a guide rail for guiding said control, whereby said control is a slide slidable in its longitudinal direction on said guide rail.

Claim 17

The luminous band display device in accordance with claim 14, characterized in that said slide is part of an adjustable resistor.

Claim 18

The luminous band display device in accordance with claim 14, characterized in that said guide rail has longitudinal recesses in opposite side walls thereof, and wherein said slide has web-like sliding bodies positioned in said recesses for guiding said slide.

Claim 19

The luminous band display device in accordance with claim 14, comprising a spring carrier with a pulley feature, and an endless tooth belt and guide rolls for guiding said belt, said endless belt being connected so that movement of said slide causes movement of said spring carrier.

Claim 20

The luminous band display device in accordance with claim 17, characterized in that said guide rolls comprise stop means for stopping said slide.

Claim 21

The luminous band display device in accordance with any of claims 15 through 18 or 14, characterized in that said guide rail has a light-transparent, longitudinal cover plate which covers said luminous segments.

Claim 22

The luminous band display device in accordance with claim 14, characterized in that the said guide rail has a front-side recess and said cover plate is inserted in said recess and is approximately parallel with its surface.

Claim 23

The luminous band display device in accordance with claim 14, comprising a braking member which cooperates with said slide.

Claim 24

The luminous band display device in accordance with claim 21, characterized in that said braking member is also a locking member for said slide.

Claim 25

The luminous band display device in accordance with claim 21, characterized in that said slide carries said braking member.

Claim 26

The luminous band display device in accordance with claim 23, characterized in that said braking member comprises a tip-stretched flexible tongue which serves for braking and/or locking.

Claim 27

The luminous band display device in accordance with claim 23, characterized in that said braking member comprises a braking spring inserted into said slide, said braking spring serving for braking and/or locking.

Claim 28

The luminous band display device in accordance with claim 14, characterized in that said slide is part of a switch.