초록 ▼

Pipe joint connections with set screws that have swivel-mounted feet. Such set screws when used with such connections flexibly and tenaciously retain pipe sections in the connections in the same manner that a toy “chinese puzzle”woven straw tube retains a person\s fingers. The larger faces of such s

Pipe joint connections with set screws that have swivel-mounted feet. Such set screws when used with such connections flexibly and tenaciously retain pipe sections in the connections in the same manner that a toy “chinese puzzle”woven straw tube retains a person\s fingers. The larger faces of such set screw feet allow the set screws to grip the pipe section with considerably less torque than that required by conventional set screws. Such connections form a flexible, strong coupling that maintains its holding power despite changes in pipe position and environmental factors such as temperature and pressure. Such connections are particularly well suited for joining polyvinyl chloride pipe sections to mechanical joint pipe fittings, valves and hydrants, although they are also extremely effective in joining conventional mechanical joint metal pipe sections to such attachments.

대표청구항 ▼

A pipe joint connection for forming a coupling between a pipe section and an attachment, comprising: (a) a web adapted to surround the pipe section in a plane substantially perpendicular to the pipe section axis, for being connected to the attachment to form the coupling; (b) a plurality of threaded

A pipe joint connection for forming a coupling between a pipe section and an attachment, comprising: (a) a web adapted to surround the pipe section in a plane substantially perpendicular to the pipe section axis, for being connected to the attachment to form the coupling; (b) a plurality of threaded set screw openings oriented toward the pipe section formed circumferentially substantially equidistant from each other on the web; and (c) a plurality of set screws, each disposed in a set screw opening, and each comprising: (i) a threaded shank whose threads cooperate with the threads in the set screws openings; (ii) a head connected to the shank for receiving a torquing means; (iii) a substantially convex, curved shaped swivel surface connected to the shank; and (iv) a swivel foot having a cavity to receive the swivel surface to allow the foot to swivel on the swivel surface and a grip face to allow the set screw to grip the pipe section.