Abstract: A rope anchor with a J-shaped a body having a hook and spine. The end of the spine has an attachment hole for a rope and an elongated, teardrop-shaped rope slot that is either enclosed or gated. The gate is biased closed to span the open side of the rope slot and pushed opened to allow access for a rope. A tip, composed of a flat chip of metallic material, fits into a slot at the end of the hook. The tip is generally triangular with two or three sharp corners, or square or rectangular with four sharp corners. The slot orients the tip so that only one of the sharp corners is exposed, or so that two adjacent sharp corners are exposed. When an exposed sharp corner is not suitable for use, the tip can be reoriented to expose a different sharp corner.

Abstract: The rope grab uses friction to control movement along the rope. A brake has an eye at one end and a foot at the other that extends away at an angle to a rounded toe. Optionally, the eye and foot are attached so as to swivel. A cam has an oval rocker and a lever that extends from the rocker opposite the rocker surface. The rocker surface curves eccentrically about an axis, so the rocker behaves like a cam to modulate friction on the rope. The rope extends through a slot and is pinched between an operative surface of the rocker surface and the toe. The brake and cam are held in the correct position relative to each other between two parallel walls of a housing with the eye and lever extending in generally opposite directions outside the housing. Optional springs bias the brake toe and operative surface into the slot.

Abstract: A rope anchor with a J-shaped a body having a hook and spine. The end of the spine has an attachment hole for a rope and an elongated, teardrop-shaped rope slot that is either enclosed or gated. The gate is biased closed to span the open side of the rope slot and pushed opened to allow access for a rope. A tip, composed of a flat chip of metallic material, fits into a slot at the end of the hook. The tip is generally triangular with two or three sharp corners, or square or rectangular with four sharp corners. The slot orients the tip so that only one of the sharp corners is exposed, or so that two adjacent sharp corners are exposed. When an exposed sharp corner is not suitable for use, the tip can be reoriented to expose a different sharp corner.

Abstract: Systems and methods for replacing modules of a personal communication structure are provided. The modules are configured to be field replaceable, such that field service personnel are able to quickly and easily replace modules in locations with high pedestrian traffic. Embodiments of the personal communication structure include a frame and one or more field replaceable units supported by the frame. The field replaceable units may include an RF bay field replaceable unit, a display field replaceable unit, a user interface field replaceable unit, an environmental sensor field replaceable unit, an electronics bay field replaceable unit, and/or a network bay field replaceable unit.

Abstract: Systems and methods for replacing modules of a personal communication structure are provided. The modules are configured to be field replaceable, such that field service personnel are able to quickly and easily replace modules in locations with high pedestrian traffic. Embodiments of the personal communication structure include a frame and one or more field replaceable units supported by the frame. The field replaceable units may include an RF bay field replaceable unit, a display field replaceable unit, a user interface field replaceable unit, an environmental sensor field replaceable unit, an electronics bay field replaceable unit, and/or a network bay field replaceable unit.