misfire. vb (intr). 1. (Firearms, Gunnery, Ordnance & Artillery) (of a firearm or its projectile) to fail to fire, explode, or ignite as or when expected. 2. (Automotive Engineering) (of a motor engine or vehicle, etc) to fail to fire at the appropriate time, often causing a backfire.
Belt drives are considered to be the best opener that you can buy. Belt drive openers utilize a rubber belt drive system and are as dependable as chain drives. But they are basically silent! So if you have a garage door attached to the home, and you dislike the noise associated with the automatic door openers, this is certainly a great option. Belt drive openers tend to last longer than any other motor on the market. Screw drives are the third type of garage door opener. They use a lifting apparatus that utilizes beside a threaded steel rod. Essentially there are less moving parts in the screw drive then in the other garage door openers, so it is reduced maintenance.
A residential garage door opener. The motor is in the box on the upper-right. A garage door opener is a motorized device that opens and closes garage doors. Most are controlled by switches on the garage wall, as well as by remote controls carried by the owner.