| | United States Patent Application: 0040238277 |
 | | Broadly speaking, there are two categories of belay devices-those that are mounted to the structure that is to be climbed, and those that are attached to a person whose job it is to aid a climber in the event of a fall, the "belayer". |
 | | Those belay devices that are attached to the climbing structure are often referred to as auto-belay devices or self-belay devices, because they do not require action from anyone other than the climber. |
 | | [0007] Regarding the operation of belay devices that require a belayer, generally the belay device is attached to the harness of the belayer and a rope, one end of which is attached to the harness of a climber, passes through the belay device. |
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