Abstract: A coupler for coupling together the end portions of two pipes having radial end flanges includes a single piece cylindrical base body having a receiving opening therethrough to receive and surround end portions of the pipes to be coupled and bridging over a gap between the pipes to be coupled. At least one arcuate coupling member having opposite end flanges extending axially inwardly from the ends of the arcuate coupling member with the length between opposite end flanges being greater than the length of the cylindrical base body is connectable to the cylindrical base body in a coupling position to prevent the passage of the radial pipe flanges to thereby secure the end portions of the pipes to be connected in the cylindrical base body in a connected condition. The arcuate coupling members can be pivotally connected to the cylindrical base body so can move between coupling and uncoupling positions.

Abstract: A coupling to connect a pipe end portion to another pipe end portion or to a valve or other fitting wherein the pipe end portion includes a circumferential shoulder includes a flange around an opening into the coupling through which the end portion of the pipe including the circumferential shoulder can be inserted into the coupling. A wheel with a radial channel therein is rotatably mounted on the flange with the flange received in the radial channel which is wide enough to also receive wedge members therein alongside the flange. Once the pipe end with the shoulder is received in the coupling, wedge members are inserted into the radial channel through a cut opening in a portion of the wheel to extend into and reduce the diameter of the opening to hold the shoulder in the coupling. A seal is provided in the coupling to seal the coupling against leakage.

Abstract: A coupling to connect a pipe end portion to another pipe end portion or to a valve or other fitting wherein the pipe end portion includes a circumferential shoulder includes a flange around an opening into the coupling through which the end portion of the pipe including the circumferential shoulder can be inserted into the coupling. A wheel with a radial channel therein is rotatably mounted on the flange with the flange received in the radial channel which is wide enough to also receive wedge members therein alongside the flange. Once the pipe end with the shoulder is received in the coupling, wedge members are inserted into the radial channel through a cut opening in a portion of the wheel to extend into and reduce the diameter of the opening to hold the shoulder in the coupling. A seal is provided in the coupling to seal the coupling against leakage.

Abstract: A coupler for coupling together the end portions of two pipes having radial end flanges includes a single piece cylindrical base body having a receiving opening therethrough to receive and surround end portions of the pipes to be coupled and bridging over a gap between the pipes to be coupled. At least one arcuate coupling member having opposite end flanges extending axially inwardly from the ends of the arcuate coupling member with the length between opposite end flanges being greater than the length of the cylindrical base body is connectable to the cylindrical base body in a coupling position to prevent the passage of the radial pipe flanges to thereby secure the end portions of the pipes to be connected in the cylindrical base body in a connected condition. The arcuate coupling members can be pivotally connected to the cylindrical base body so can move between coupling and uncoupling positions.

Abstract: A coupler for coupling together the end portions of two pipes includes a single piece cylindrical base body having a receiving opening therethrough to receive and surround end portions of the pipes to be coupled and bridging over a gap between the pipes to be coupled. The cylindrical base body has a plurality of truncated flanges on each of opposite end portions thereof with aligned openings extending through truncated flanges on opposite ends of the cylindrical base body. At least one arcuate coupler having a first hinge extending from a first end and a second hinge extending from a second end is secured around the cylindrical base body by a first fastener bolt passing through the first hinge and aligned openings and by a second fastener bolt passing through the second hinge and aligned openings.

Abstract: Pipe ends having radial flanges may be easily attached by an arcuate snap coupler having a channel for receiving portions of spaced face to face flanges on respective pipe end portions to be connected. The flanges may be formed directly on the pipe end portions, or may be formed by coupler body pieces attached to the pipe end portions. The arcuate snap coupler includes an open channel portion having two parallel side walls spaced apart a distance equal to the maximum desired distance over the face to face flanges when the two pipe end portions are joined together, a first hinge portion for rotatable attachment to a first fastener bolt extending between the flanges, and a second hinge portion for attachment to a second fastener bolt extending between the flanges after rotation of the coupler to receive the flange portions in the channel.

Abstract: Pipe ends having radial flanges may be easily attached by an arcuate snap coupler having a channel for receiving portions of spaced face to face flanges on respective pipe end portions to be connected. The flanges may be formed directly on the pipe end portions, or may be formed by coupler body pieces attached to the pipe end portions. The arcuate snap coupler includes an open channel portion having two parallel side walls spaced apart a distance equal to the maximum desired distance over the face to face flanges when the two pipe end portions are joined together, a first hinge portion for rotatable attachment to a first fastener bolt extending between the flanges, and a second hinge portion for attachment to a second fastener bolt extending between the flanges after rotation of the coupler to receive the flange portions in the channel.

Abstract: A coupling to connect two pipes, and to connect pipe fittings and valves with pipes, which includes arcuates provided with inner flanges in their end portions, where said arcuates are positioned around crossable inner means, which means can also be used by different types of cylindrical couplings which couplings require grooves around cylindrical rings mounted around the end portions of pipes; where crossable inner means is comprised of a centrally located partitioner ring located between two pipes, which ring separates two gaskets provided with backup rings which backup rings are provided with radial circumferential grooves for the attachment of said arcuates bridging across said inner means. Said backup rings are attachable to the shoulders constructed around the end portions of two opposite pipes.

Abstract: A coupling to connect pipe, including lengths of pipe, valves, hoses, and pipe and hose fittings, includes a body having an opening to closely receive the end portion of the pipe to be coupled. One embodiment of the coupling includes an end having a grooved end portion extending partially around the receiving opening with an internal groove therein and a recessed end portion extending partially around the opening and interrupting the internal groove, the end face of the coupling body being stepped and defined by both the grooved end portion and the recessed end portion. Jaw members move between a position to allow the pipe to move into or out of the coupling body and a position securing the pipe in the coupling body. An insert may be provided to lock the jaw members in position.

Abstract: A coupling to connect two pipes, and to connect pipe fittings and valves with pipes, which includes arcuates provided with inner flanges in their end portions, where said arcuates are positioned around crossable inner means, which means can also be used by different types of cylindrical couplings which couplings require grooves around cylindrical rings mounted around the end portions of pipes; where crossable inner means is comprised of a centrally located partitioner ring located between two pipes, which ring separates two gaskets provided with backup rings which backup rings are provided with radial circumferential grooves for the attachment of said arcuates bridging across said inner means. Said backup rings are attachable to the shoulders constructed around the end portions of two opposite pipes.

Abstract: A multipurpose coupling is made of two pieces incorporating a partitioning washer ring between them. The coupling is provided with a centrally located interlocking, doubled-up mechanical mechanism, comprised of two mechanisms, where each mechanism performs its intended function in sequence to connect the two pieces of the coupling body, and to secure the coupling to the ends of two pipes simultaneously. The first part of the doubled up mechanism includes two main radial flanges on the inner end of each piece of the coupling body which are held together face to face between secondary radial flanges by means of fasteners extending between the secondary radial flanges. The second part of the doubled up mechanism includes a cylindrical cover having intermittent inner radial shoulders which are interlockable upon rotation of the cylindrical cover with radial flange shoulders positioned intermittently around the main radial flanges.

Abstract: A multipurpose coupling is made of two pieces incorporating a partitioning washer ring between them. The coupling can provide a restrained joint between two ends of pipes having grooves or shoulders in the end portions of said pipes, or an unrestrained joint for plain end pipes having no grooves or shoulders in the end portion of pipes, or the coupling can provide a restrained joint on its one end, while providing an unrestrained joint on its opposite end. The coupling is provided with a centrally located interlocking, doubled-up mechanical mechanism means, comprised of two mechanisms, where each mechanism perform its intended function in sequence to connect two said pieces of the coupling body, and to secure the coupling to the ends of two pipes simultaneously. Valves or fittings may be incorporated into the coupling between the ends of pipes being connected.

Abstract: A coupling for attachment to the end portion of a pipe includes jaw members adapted to slide along an inner end taper in the coupling body so that linear movement of the jaw members toward the end of the inner end taper adjacent an end of the coupling body causes movement of the jaw members radially inwardly of the coupling body against the end portion of the pipe when received in the coupling body. The coupling may include a bell type gasket to function as a spring and the spring action of the gasket may be augmented by installing a springy crib ring around the gasket inside the coupling body.

Abstract: A flow control and pressure reducing valve having a polygonic valve body with an inlet chamber and an outlet chamber partitioned by a partition plate. A plurality of passages are formed through receptacles around the partition plate, with the inlet portion opening into the inlet chamber and the outlet portion opening into the outlet chamber. Elastomeric flow control means having the shape of flat hat are positioned inside the receptacles to block the passage of fluid when charged with pressurized fluid, and to unblock the passage of fluid when the pressurized fluid is discharged from said flow control means.

Abstract: A coupling to connect pipe, including lengths of pipe, valves, hoses, and pipe and hose fittings, includes a body to closely receive the end portion of the pipe to be coupled. A set of first class lever jaw members each having a power arm and a weight arm are mounted to the coupling body to establish a fulcrum for rotation of each lever jaw member about the fulcrum between an engaged position and a disengaged position with respect to the pipe end portion when received in the coupling body. The weight arms may include a gripping surface such as a rubber or plastic material or gripping teeth to grip a smooth end portion of a pipe, or the end portion of the pipe may include a shoulder, such as formed by a groove in the end portion, so the weight arms engage the shoulder to secure the pipe in the coupling.

Abstract: Reverse Flow Modifiable Combination Valve is a valve which has a common cage in which different types of fluid control means can be installed in a fix location to produce more than one type of valves having different flow characteristics, and inner flow control means of the valve can be inspected and replaced without removing cage of the valve.

Abstract: A free floating diaphragm flow control valve includes concentric inner and outer bodies, where a partition plate divides the inner body into two equal inlet and outlet chambers. A cylindrical cavity, concentric with the inner and outer cylindrical bodies, provides space for a sheet diaphragm looping around a seat provided by the inner cylindrical body. The doubled up ends of the sheet diaphragm are held together by a tie assembly which has an integral bolt stem held that is shared with an actuator, which actuator, working in tandem with the pipe line's pressurized fluid around the diaphragm, can actuate the diaphragm's tied up ends, to open or close the diaphragm around its seat to control the fluid flow through the valve.

Abstract: A coupling for joining two pipes in end-to-end relationship includes flanges which are sealably secured to end sections of pipes to be connected. The flanges form front inclined faces and adjacent front flanges that are slidably received within opposite end openings of a cylindrical coupling. A groove or shoulder is formed at the rear end of the front flanges that cooperate with jaws extending from the ends of the cylindrical coupling to secure the received pipe end portions in the cylindrical coupling to thereby join the pipes together. One or more gaskets fit in the cylindrical coupling between the ends thereof with gasket arms that abut against the inclined surface so that fluid pressure in the pipes force the gasket arms against the inclined faces to provide a seal between the joined pipes. A stop may be provided to limit the sliding travel of the cylindrical coupling with respect to the flanges.

Abstract: An integrated multipurpose valve is a valve in which more than one type of valves are integrated in a cage held permanently in the pipeline, and the valve as a while can perform multiple functions which allow it to be a shut off valve, a pressure reducing valve, a pressure relief valve and a check valve, and a multi-diversion valve which can divert fluid flow in several directions. The inner components of the valve can be inspected and replaced without removing the valve as a whole from the line.

Abstract: A coupling for joining two pipes in end-to-end relationship includes flanges which are sealably secured to end sections of pipes to be connected. The flanges form front inclined faces and adjacent front flanges that are slidably received within opposite end openings of a cylindrical coupling. A groove or shoulder is formed at the rear end of the front flanges that cooperate with jaws extending from the ends of the cylindrical coupling to secure the received pipe end portions in the cylindrical coupling to thereby join the pipes together. One or more gaskets fit in the cylindrical coupling between the ends thereof with gasket arms that abut against the inclined surface so that fluid pressure in the pipes force the gasket arms against the inclined faces to provide a seal between the joined pipes. A stop may be provided to limit the sliding travel of the cylindrical coupling with respect to the flanges.