Abstract: A hanger assembly (10) for supporting duct work such as heating boots (12) having telescoping brackets (16) for supporting the duct work and, further, having a clip (14). The clip (14) is adapted to slidably receive the telescoping hanger brackets (16). The clip is also adapted to mount the duct work to the hanger brackets (16) in a slidable fashion.

Abstract: A pipe hanger (10) for suspending a pipe (12) from a support beam (14) includes at least one flexible curved portion (16) which receives the pipe (12) in a snap-fit connection. The hanger (1) includes an elongate stem (22) for mounting the hanger (10) to the support beam (14). The stem (22) has a prismatic cross-section and a plurality of holes (26) extending therethrough in mutually perpendicular directions and graduated marking therealong. A plurality of hangers (10) can be used to mount a pipe (12) at an incline relative to the support (14) using the markings as guides.

Abstract: A crack (12) in a concrete, cement or masonry wall (10) is repaired by injecting a fluid, liquid latex (14) into the crack (12). The exposed surface of the crack (12) is covered with a liquid, impermeable barrier (20) and then the fluid, low-viscosity, liquid latex (14) is injected through the barrier (20) into the crack (12). The liquid latex (14) subsequently cures into a solid, elastomeric state. The latex (14) substantially fills the crack and allows shifting of the wall (10) due to temperature and pressure changes or settling of the wall (10) without damaging the cured latex (14) or causing any further growth of the crack (12).