The tube closure comprises a cap and a nut which work in concert with each other to effectively seal a nipple at the end of a threaded tube or pipe and which facilitate removal of the cap. The cap has a flared end portion, a narrowed neck portion, a head portion, and an inner cylindrical sealing surface which engages the nipple. The cap is removably engaged within the nut with the nut at the neck portion, and is sealingly engaged on a cylindrical surface of the nipple. The cap may be removed from the nut by withdrawing the head through the nut, with an axial separation force. Removal of the cap from the nipple requires an axial cap removal force. The required axial separation force is greater than the cap removal force. The engagement of the cap within the nut allows the unscrewing of the nut to provide an axial force on the cap to disengage the cap from the nipple without separating the nut from the cap.
An elongated strap has a plurality of openings sized to hold plumbing pipes extending through the openings. The openings have a periphery that undulates so the periphery extends on opposing sides of the strap to increase the periphery in contact with the pipe along the longitudinal axis of the pipe. A fluid-tight pipe cover releasably connects to further openings in the strap. The pipe cover has a first, open end sized to fit over the pipe. The open end has projections cooperating with the further openings to releasably fasten the cover to the strap. The cover has a closed, distal end that extends beyond the distal end of the pipe during use of the device. A seal is interposed between the cover and the pipe during use of the device to prevent the passage of fluid from the pipe past the seal.
An apparatus for a fuel tank filling and level monitoring device. The apparatus 10 provides an inexpensive and simple means of monitoring the fuel level in a tank 14 while it is being filled. A translucent cylinder 22 threaded on both ends 34, 36 is attached to the inlet 12 of the fuel tank 14. The operator 24 then inserts the nozzle 18 of the filling apparatus 20 into the end of the translucent cylinder and begins to fill the tank 14. When the tank 14 is filled to capacity the level begins to rise into the translucent cylinder 22 indicating the tank is full. The operator 24 then stops filling the tank 14, removes the nozzle 18 of the filling device 20 and applies the original cap from the fuel tank inlet to the end of the cylinder. Also disclosed are embodiments with a rigid body, a flexible body and as a component of a fuel tank.
A protector for the ends (2) of tubular elements (1), which comprises: a ring (3) made from a deformable material, wherein the external surface of one of the ends thereof has a conical thread (4); and a threaded cap (6) made from a deformable material, which comprises a closed end (C) and an open end (A), wherein the internal surface of said open end (A) includes a conical thread (5) which matches that of the external end of ring (3). A tubular element (1) which comprises the threadless protector is also disclosed.
