Calantha Garage Doors October 14th, 2017 - 21:28:10
Chamberlains Power Drive® and Whisper Drive® belong to the residential garage door opener category in the do-it-yourself range. The Elite(TM) range contains premier residential and commercial gate operators and access control systems. The Sentex® range is for secure residential and commercial garages. Sears Holdings Corporation parent of Kmart and Sears Roebuck and Co. is the third largest broad line retailer in the US. Sears Holdings is a leading supplier of tools lawn and garden home electronics and automotive repair and maintenance. It supplies the Craftsman range of garage door openers.
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.
In the past the biggest concern with operating an overhead garage door was the potential risks associated with the springs used for balancing the door weight. Pre mid 1960s garage door installations typically relied upon a pair of stretched (tensioned) springs to assist the operation of the garage door pivoting hinges. These springs became loaded (tensioned) as the door was moved into the closed position. Unloading (releasing) of the stored spring energy occurred as the door was opened to the horizontal overhead position. One of the most dangerous aspects of these spring systems was that after a period of time often without any maintenance or inspection the points of attachment of these springs would rust or become weak.
The Linear Corporate is a major producer of security systems like garage door and garage door openers. Linear produces garage door openers accessories like the Linear Act 21 key chain transmitter Linear DR3A Linear Moore-O-Matic gate or garage opener receiver Linear DT2A gate or garage door opener replacement transmitter Linear DTC Moore-O-Matic Delta 3 Remote (same as DTD or DT) gate or garage door opener replacement transmitter Linear DTKP wireless keypad Linear MDR Megacode System single channel receiver Linear MDT-1 and MDT-2 Megacode gate or garage door openers Linear MDTK wireless keypad model Linear MT-1B channel visor block coded transmitter Linear MT-2B channel visor block coded transmitter etc.