The Model ATS

Advanced Trolley System Light-Duty Trolley Operator

 Liftmaster ATS

Our preferred choice for your commercial door operator is for use on standard lift, sectional garage doors up to 14′ high, rated for 8 cycles per hour.  It comes with a one-year warranty.

ATS Standard Features:

  • Automatic safety reverse/automatic door stop
  • Manual release in case of power failure
  • I-beam trolley track
  • The Protector System non-impact infrared safety device
  • 1-button control station
  • Standard with 14′ rail
  • High-torque, industrial  1/2 HP, 115V single-phase motor with instant reverse and automatic reset thermal overload
  • 1-year warranty

Garage Door Trolley Systems

The garage trolley system, also known as an electric garage door opener, first came into being in 1926 with an invention by C.G. Johnson of Hartford City, Indiana. However, it did not immediately become popular and people were still manually opening wooden garage doors, usually secured by large hinges.

After World War II, Chicago’s Era Meter Company produced an overhead garage door that is the basis of what we use today. This door had a switch in the garage’s interior and a corresponding one on a driveway post for opening and closing.

Invention Missteps

Two unnamed US inventors, located in Washington State and Illinois, invented the first wireless garage door openers. This type of opener consisted of a receiver, which controlled the garage mechanism and a transmitter that would send the “open” signal. Unfortunately, it was found that this switch would not only open the homeowner’s garage door but the neighbors as well. In addition, there was concern for child safety when 85 children, playing with the switch, were crushed.

Today’s Garage Remote

As time went on codes were developed to improve the system. Unfortunately, criminals were able to defeat this security by means of a regular transmitter. It became obvious that further study had to be done. Today’s remote controls have a rolling code, which creates a new code with every touch of the remote button. This prevents anyone, other than the owner, from opening the garage door.

Over time, many additional features have been added. These include lights that automatically turn on and off when the remote is used, the addition of accessories such as solenoid-operated deadbolts and a remote feature that turns off the controls when the homeowner is away from home for a long period. There are also things such as the ability to open it via the Internet, a fingerprint key pad and a carbon monoxide sensor to open the door if there are exhaust fumes present.

In 1941 J.G. Wilson Corporation of New York City was making commercial sectional doors at its Norfolk/Chesapeake, VA factory. Where these doors were first began is unknown.

Yes, garage doors have come a long way since the horseless carriage doors of old. Thanks to government regulations, they have become a safe and secure method to protect one’s belongings and children.