Abstract: Disclosed is a device for coupling a male piping member to a female piping member including a compressible sealing gasket and a gripping ring surrounding the male piping member, the gripping ring including at least one gripping member and at least one overlapping surface; an intermediate ring surrounding the male piping member, the intermediate ring at least partially overlapping the overlapping surface of the gripping ring, the intermediate ring communicating with the compressible sealing gasket; and a locking ring surrounding the male piping member and communicating with the gripping ring, wherein through a tightening connection between the locking ring and the female piping member, the locking ring communicates with the gripping ring forcing the intermediate ring into the compressible sealing gasket to form a seal between the male piping member and the female piping member and subsequently to force the gripping ring to grip the male piping member.

Abstract: The present invention provides a fluid flow prevention apparatus for a wet barrel fire hydrant which is simple and inexpensive to install and effectively cuts off water flow while reducing water hammer. The fluid flow apparatus includes an in-line or non-hinged valve member for closing a flow passageway connected to the hydrant that is operably movable from an open to closed position upon damage to the hydrant. An adjustable damping member controls the rate of closing of the valve member to reduce the effects of water hammer.

Abstract: The present invention provides a fluid flow prevention apparatus for a wet barrel fire hydrant which is simple and inexpensive to install and effectively cuts off water flow while reducing water hammer. The fluid flow apparatus includes an in-line valve member for closing a flow passageway connected to the hydrant that is operably movable from an open to closed position upon damage to the hydrant. An adjustable damping member controls the rate of closing of the valve member to reduce the effects of water hammer.

Abstract: The present invention provides a fluid flow prevention apparatus for a wet barrel fire hydrant which is simple and inexpensive to install and effectively cuts off water flow while reducing water hammer. The fluid flow apparatus includes an in-line valve member for closing a flow passageway connected to the hydrant that is operably movable from an open to closed position upon damage to the hydrant. An adjustable damping member controls the rate of closing of the valve member to reduce the effects of water hammer.

Abstract: A compression-type valve seating ring device for sealingly engaging the valve seat. The seating ring device includes a resilient cylindrical body having a central axis and having a side surface, a top surface and a bottom surface. A first inward bevel is defined circumferentially from the side surface toward the top surface, and a second contour is defined circumferentially between the first bevel and the top surface, wherein the first bevel provides a seating surface and the second contour enhances the seal and life of the valve. The valve element is configured symmetrically such that top and bottom sides are substantially identical.

Abstract: The present invention provides a hydrant locking device to be used in conjunction with a fire hydrant having locking nuts which includes, a base arm having a first base arm portion and a second base arm portion. A top arm extends upwardly from the base arm and includes a top arm cap for covering at least one of the locking nuts. The first base arm portion is detachably secured to the second base arm portion, wherein the base arm and the top arm are secured to the fire hydrant when the first base arm portion is secured to the second base arm portion.

Abstract: A heat-responsive element has two links joined with a thin solder layer in a face-to-face relationship over an extended surface area. The components of opposed surfaces of the links in contact with the solder layer and the solder layer are adapted to alloy with each other in the regions immediately adjacent each opposed surface to form alloy bonds between the opposed surfaces and the solder layer. The strength of these bonds is greater than the strength of the solder layer. At least the opposed surfaces of the links consist, at least in part, of an alloy-forming amount of nickel, cobalt, chromium or iron, or an alloy of nickel, cobalt, chromium, or iron.

Abstract: Components for wear-resistant surfacing helical metal conveyor blades have segments of wear-resistant material of like shape conforming to the helix curvature for mounting in side-by-side relation on a face of the blade. The segments have at least one slot which extends through their inner end and diagonally across the segment toward its outer end. A bar is provided for insertion in each groove with its end projecting from the inner end of the groove, the projecting bar ends being welded to the blade face to prevent movement of the segments relative to the blade.