Fauna. Garage Doors. October 10th , 2017.
Genie, Chamberlain, Sears, Wayne-Dalton, Linear, and Universal (SkyLink) make some of the best garage door openers on the market. The following product reviews should be useful for those in the market for a garage door opener. The Genie® Company is one of the most well-known and trusted companies in the US. Founded in 1923 under the name of the Alliance Manufacturing company, Genie manufactures consumer, industrial as well as military products. The Genie® brand of garage door openers are very popular for their high power remote-controlled garage door opening systems. Genie produces a wide range of garage door openers and the most popular brands from Genie are: the Excelerator, the Screw Drive and the Chain Glide. Other brands include the Alliance, the Blue Max, the Crusader, Python, Pro-Max, Lift-a-door, OverHead Door, Norelco, Code-Dodger and Intellicode.
Dallas Police Liutenant Barry Payne of the North Central Patrol Division was quoted as saying: "Citizens must realize when they leave a garage door opener in their car in their driveway, it is like leaving a key to their house outside where everyone will know where it is. The solution is simple: Park in the garage, or dont leave a garage door opener in the car in the driveway. I cant say it any clearer than that. Actually, this home invasion could have been avoided in three different ways: the family could have parked their car in the garage, they could have parked outside of the garage, yet removed the garage door opener from the vehicle, OR they could have securely locked the door going from the garage to the home.
As a door expert witness, I am called upon many times a year to evaluate garage door injuries. Garage doors come in many shapes and sizes. Their functions range from basic security of an area to cosmetic concealment. Most doors can be broken down into a few basic styles or categories. Typical modern garage doors for residential applications tend to be predominantly of the overhead sectional variety. That style of door comes in many configurations, materials, levels of insulation, and a wide range of appearance possibilities.
With a torsion type of spring, the energy is imparted or removed by rotating the spring clockwise or counter clockwise depending upon the direction of usage. With professional installation, the complete loading of the torsion spring is controlled by the garage installer, and is determined by the weight and size of the garage door that it is operating. When this type of torsion spring fails, it remains attached and intact to the location on the horizontal control rod where it was mounted. I have not heard of or seen any torsion spring fly across a garage, creating injury from failed components as with the stretched older style garage door springs. This is not to say that injuries have not occurred with the torsion style spring. The installation of this type of spring is generally safe when left to a trained garage door installation professional. Severe and serious injuries have occurred when untrained, unqualified individuals have attempted to install or service this type of spring.
In contrast to an overhead type of garage door, be it sectional or single panel, roll up doors have a totally different type of operating system. When these doors are used, they can be concealed in an overhead or under mounted trough. These doors operate similarly to a roll top desk door except for how they are stored when not in the closed position. They normally coil as they are retracted, and require significant gear trains to reduce the effort required to move these doors up and down into position. Often the forces needed to move these roll up doors require a reduction type of transmission that allows a very heavy door to be operated effortlessly.
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