US PATENT SUBCLASS 340 / 815.4
VISUAL INDICATION

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

815.4VISUAL INDICATION {18}
815.41  DF  .~> False signal prevention (anti-sunlight)
815.42  DF  .~> Having light piping {1}
815.44  DF  .~> Seven-segment indicator
815.45  DF  .~> Using light emitting diodes
815.46  DF  .~> Audio responsive lamp
815.47  DF  .~> Switchboard or panel type (e.g., bullseye) {3}
815.53  DF  .~> Lighted alphanumeric or character indicator matrix {1}
815.55  DF  .~> Transparent or translucent indicator with means for blocking light {2}
815.58  DF  .~> Step by step positioner {3}
815.62  DF  .~> Electromagnetic actuator for indicator matrix
815.63  DF  .~> Binary indicator
815.64  DF  .~> Electromagnetic rotator for indicator wheel
815.65  DF  .~> Multiple colors {1}
815.69  DF  .~> Diverse indications {2}
815.73  DF  .~> With lamp enclosed in transparent housing {3}
815.78  DF  .~> Pointer indicator {1}
815.81  DF  .~> Grouped drop annunciators {1}
815.83  DF  .~> Movable {5}

DEFINITION

Classification: 340/815.4

VISUAL INDICATION:

(under the class definition) Subject matter comprising a means for producing a visually perceptible indication of the presence, absence, or occurrence of an electrical signal.

(1) Note. Indicators for quantitative characteristic of the electrical signal (e.g., voltage) per se, are excluded from this subclass and are classified in Class 324.

(2) Note. The presence, absence, or occurrence of the electrical signal and the resulting visual indication is often intended to indicate some other condition or state or to convey some message (e.g., servant "call" annunciators).

(3) Note. Display of printed or painted objects that does not contain electrical communication is classified in Class 40 Card, Picture, or Sign Exhibiting.

(4) Note. Mechanical, as distinguished from electrical, devices for giving signals of the nature of either alarms or indicators are classified in Class 116, Signals and Indicators.

(5) Note. Radiant energy actuated visual indicators, (i.e., all methods and apparatus for using, generating, controlling, or detecting radiant energy) that do not contain electrical communications are found in Class 250, Radiant Energy.

(6) Note. An optical element or an optical element system that includes a liquid crystal display is classified in Class 349, Liquid Crystal Cells, Elements and Systems, appropriate subclasses for utilizing a liquid crystal device in general.

(7) Note. A light source structure to cast light in at least one direction to render objects in that direction visible and/or the combination of a source of visible radiant energy and means to modify the distribution or composition of the radiant energy emanating from the source, or methods for utilizing said combination are found in Class 362, Illumination.

(8) Note. Display systems having selective electrical control are classified in Class 345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems.

SEE OR SEARCH THIS CLASS, SUBCLASS:

286.01+, for a signalling system having a visual indicator.

435+, for visual indicators used with vehicles.

500+, for a condition responsive indicating system, particularly subclass 600 for condition responsive radiant energy used in electrical communication.

907+, for visual indicators used to control vehicle or pedestrian traffic.

SEE OR SEARCH CLASS

40, Card, Picture, or Sign Exhibiting, appropriate subclasses for indicators void of electrical communications.

116, Signals and Indicators,

200, for mechanical indicators.

219, Electric Heating, 248, for a heating device combined with a sole plate-type pressure application means (e.g., a flatiron, etc.) including a condition-responsive indicator or subclass 720 where a control system for a microwave heating device has a display or alarm.

250, Radiant Energy, appropriate subclasses for radiant energy responsive signalling.

313, Electric Lamp and Discharge Devices,

513, for character display with particular mask or electrode shape.

315, Electric Lamp and Discharge Devices: Systems,

169.1, for a visual indicator used in the shifting of a register, counter, or display.

345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems,

1+, for selective electrical control display systems.

349, Liquid Crystal Cells, Elements and Systems, appropriate subclasses for utilizing a liquid crystal device in general.

359, Optics: Systems (Including Communication) and Elements,

265+, for a nonselective electrochronic display element. 362, Illumination, appropriate subclasses for electric lights and associated apparatus used for illumination.

368, Horology: Time Measuring Systems or Devices,

223+, for displays or display devices details.

482, Exercise Devices,

3, for pace setting indicator and subclass 84 for striking exercise devices having indicators.

902, Electronic Funds Transfer,

21, for ATM (Automatic Teller Machine) with specific data output means or indicator.