The Delta Electric Company was an American electronics

Electronics

Electronics is the branch of science, engineering and technology that deals with electrical circuits involving active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies...

 manufacturer formed in 1913 in Marion, Indiana

Marion, Indiana

Marion is a city in Grant County, Indiana, United States. The population was 29,948 as of the 2010 census. The city is the county seat of Grant County...

 (after moving from Chicago, Illinois) that produced lantern

Lantern

A lantern is a portable lighting device or mounted light fixture used to illuminate broad areas. Lanterns may also be used for signaling, as 'torches', or as general light sources outdoors . Low light level varieties are used for decoration. The term "lantern" is also used more generically to...

s, flashlight

Flashlight

A flashlight is a hand-held electric-powered light source. Usually the light source is a small incandescent lightbulb or light-emitting diode...

s, automotive

Automotive lighting

The lighting system of a motor vehicle consists of lighting and signalling devices mounted or integrated to the front, sides, rear, and in some cases the top of the motor vehicle...

 and bicycle lighting

Bicycle lighting

Bicycle lighting improves the visibility of the bicycle rider to others in dark conditions, i.e. to increase the rider's conspicuity and to enhance the ability of the rider to see, illuminating the way forward. Both reflectors and active lights are used to make the rider more visible, and many ...

, battery tubes, horn

Vehicle horn

A vehicle horn is a sound-making device used to warn others of the approach of the vehicle or of its presence. Automobiles, trucks, ships, and trains are all required by law to have horns...

s, horn buttons, light switch

Light switch

A light switch is a switch, most commonly used to operate electric lights, permanently connected equipment, or electrical outlets. In torches the switch is often near the bulb, but may be in the tail, or even the entire head itself may constitute the switch .-Wall-mounted switches:Switches for...

es, other battery-powered electrical parts, and bilge pump

Bilge pump

A bilge pump is a water pump used to remove bilge water. Since fuel can be present in the bilge, electric bilge pumps are designed to not cause sparks. Electric bilge pumps are often fitted with float switches which turn on the pump when the bilge fills to a set level. Since bilge pumps can fail,...

s.

Delta was purchased in 1965 by the Novo Industrial Corporation. One of Novo Industrial Corp.'s subsidiary companies, King Bee Manufacturing Co., was moved to Marion, and its line of automotive lighting and safety equipment, including headlamp

Headlamp

A headlamp is a lamp, usually attached to the front of a vehicle such as a car or a motorcycle, with the purpose of illuminating the road ahead during periods of low visibility, such as darkness or precipitation. Headlamp performance has steadily improved throughout the automobile age, spurred by...

s, safety lights, directional lights, mirrors, and reflector

Reflector

-Science:* Reflector, a device that causes reflection * Reflector , used to control lighting contrast* Reflecting telescope* Reflector , the part of an antenna that reflects radio waves...

s for trucks, buses, trailers, and farm tractors, was merged into the Delta line of products.

United Air Cleaner (UAC) was a division of Nova Industrial Corp. that produced air cleaners.

Delta Electric was a division of Novo Industrial Corp. until 1968 when Novo became part of United Filtration Corp. Delta continued to operate as a division of United Filtration. After selling off the line of bicycle accessories, Delta continued to produce accessories for the automotive industry such as truck side-view mirrors and various automotive switches. By 1976 the company's main line had become warning buzzer

Buzzer

A buzzer or beeper is an audio signaling device, which may be mechanical, electromechanical, or piezoelectric. Typical uses of buzzers and beepers include alarm devices, timers and confirmation of user input such as a mouse click or keystroke....

s for fire and security alarms.

Halle Industries Inc. had acquired Delta in 1977, and on March 31, 1978, shut down production of Delta Electric due to losing contracts for their smoke detector

Smoke detector

A smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a local audible and/or visual alarm from the detector...

alarms to Japanese imports.