Abstract: A flush actuator assembly is adapted to fit existing valve bodies. The flush actuator assembly includes a plunger rod which is capable of displacing the relief valve post more or less to adjust the flow of water through the flush valve during a single flush. The relief valve post may be displaced different amounts by adjusting the actuator assembly such that the plunger rod contacts the relief valve post at different locations along the central longitudinal axis of the post. Additionally, the relief valve post may be displaced different amounts by providing a plunger rod that has a different range of travel. A method associated with displacing the relief valve post varying amounts is also disclosed.

Abstract: A flush valve diaphragm that includes a body portion and a peripheral sealing portion. The body portion is flexible and has a central passageway. The peripheral portion includes an integral filter, an exit chamber, and a bypass arrangement, such that water flowing through the filter flows through the bypass arrangement. The integral filter prevents clogging of the bypass arrangement. The diaphragm is used in a flush valve diaphragm assembly and a flush valve.

Abstract: An automatic toilet flushing system, for use with conventional toilets, includes a sensor, an actuator and a flushing mechanism. The actuator has a gear train, a motor, a pivotal arm connected to the gear train, and a power source connected to the motor for rotating the shaft of the motor which rotates the gear train for pivotal movement of the arm. The flushing mechanism includes a flapper valve and the pivotal arm is connected to the flapper valve via a bead chain and a handle swivel or a tab mounted on the pivotal arm. The sensor may replace the flush handle or the flush handle and the sensor may both be provided. A kit and a method for converting a manual flushing system to the automatic toilet flushing system are also provided.

Abstract: A drain assembly includes a receptacle body with a first end and a second end defining a cavity therebetween, an adjustable collar and a grate. The first end of the receptacle body forms an opening into the cavity and comprises a peripheral step with a connection flange extending substantially perpendicularly therefrom, and a peripheral flange with a substantially horizontal support portion extending away from the connection flange. The connection flange includes a series of vertical slots for accommodating horizontally-oriented fastening members, and the connection flange and the peripheral flange define a channel therebetween. The adjustable collar comprises a first flange positioned adjacent to the connection flange of the peripheral step, and a second flange extending substantially perpendicular from the first flange. The first flange includes a series of holes which align with the series of vertical slots in the connection flange. The grate is positioned over the opening of the receptacle body.

Abstract: A two-part grate assembly for a channeled drain trough. The grate assembly has a grate frame that receives a removable grate section. The grate frame has lugs with vertical projections extending therefrom that define securing recesses that assist in aligning and securing the grate frame atop a drain trough. Additionally, the present invention is directed to the use of an alignment bar that prevents the grate section from sliding out of operating position within the grate frame by restricting lateral movement of the grate section. Further, the present invention is directed to a method of providing a grate assembly for a channeled drain trough having a grate frame that is adapted to receive a removable grate section.

Abstract: A stabilizing collar which is adapted to fasten to a drain pipe for stabilizing a drain. The stabilizing collar in the form of a ring includes an opening between an inner surface for receipt of a pipe and defines an engagement member for securing the body to the pipe and a support receiving member adapted to receive a support member for supporting the drain on the stabilizing collar. The present invention further provides for a method of installing the stabilizing collar to stabilize a receptacle body of the drain. The receptacle body is attached to the pipe and the support members are adjusted so that they contact the receptacle body and therefore provide support to keep the receptacle body at the same slope as the floor level.

Abstract: The present invention is a post yard hydrant with controlled adjustable flow. The post yard hydrant includes a valve housing located below ground level for connection to a water supply under pressure, a head portion with an integral discharge nozzle positioned above ground level, and a casing portion with a first end connected to the head portion and a second end connected to the valve housing. The post yard hydrant further includes an operating rod disposed in the casing portion for reciprocation therein and an operating means configured to interact through a flow control linkage to reciprocate the operating rod. The flow control linkage is adapted to adjust water flow from a trickle level to a full pressure level.

Abstract: A slotted drain having a first channeled half having a first engaging structure and a second channeled half having a second engaging structure mating within the first engaging structure is disclosed. The first channeled half can define a cantilever snap-fit recess and the second channeled half can comprise a cantilever snap-fit protrusion. A slot is formed when the first and second channeled halves are joined. The slot is adapted to receive a liquid variant and the slotted drain is adapted to receive the liquid from the slot into the first and second channeled halves. The slotted drain may optionally include a concrete pass-through port, a rebar clip, bedding feet and/or securement ribs. A method of assembling a slotted drain is also disclosed.

Abstract: An oil-based odor trap arrangement for a waterless urinal including (a) a bell trap tube received within a cavity situated in a lower portion of the waterless urinal, wherein one end of the tube is adapted to be removably attached to the cavity; and (b) a strainer having a body and defining a cap portion and an integrally attached ring portion extending axially away from the cap portion, wherein the strainer is adapted to be received onto an opposite end of the tube whereby the ring portion partially envelopes the tube thus forming a baffle configured to: 1) contain an oil-based substance between the ring portion and a wall of the cavity; 2) accommodate the flow of fluid from the urinal between the ring portion and the tube; and 3) direct the fluid into the tube.

Abstract: A diaphragm assembly for use in conventional diaphragm-type flush valves includes a flexible diaphragm body having a first side and a second side and a bypass orifice filter insert defined in the diaphragm body. The second side of the diaphragm body includes an annular protrusion and a plurality of protruding ribs, wherein a recess area is defined between the rib and the protrusion. When a pressure difference is applied across the diaphragm body, the second side of the diaphragm body is concave and the first side of the diaphragm body is convex, whereby a distance between the rib and the protrusion decreases in order to prevent the diaphragm body from closing two quickly against a valve seat of a flush valve. A method for controlling pressure differences across the diaphragm body is also disclosed.

Abstract: A diaphragm assembly for use in conventional diaphragm-type flush valves includes a flexible diaphragm body having a first side and a second side and a bypass orifice filter insert defined in the diaphragm body. The second side of the diaphragm body includes an annular protrusion and a plurality of protruding ribs, wherein a recess area is defined between the rib and the protrusion. When a pressure difference is applied across the diaphragm body, the second side of the diaphragm body is concave and the first side of the diaphragm body is convex, whereby a distance between the rib and the protrusion decreases in order to prevent the diaphragm body from closing two quickly against a valve seat of a flush valve. A method for controlling pressure differences across the diaphragm body is also disclosed.

Abstract: A fixture carrier including two uprights spaced apart and secured using cross bars that permit the center-to-center distance between the uprights to be adjusted. In conjunction with this horizontal adjustment, vertically adjustable support members mounted upon each upright provides a factory-assembled fixture carrier that may be easily adjusted in the field to accommodate horizontal distances between the uprights and vertical positions of the support members. Supporting arms for carrying the fixture are secured to each support member.

Abstract: A backflow preventor that generally includes a modular fluid arrangement having a modular strut, a one-piece modular cage, a relief valve fluidly connected to the modular cage, and at least one in-line check valve removably housed in the modular cage. In operation, when backflow occurs, pressure in a chamber of the relief valve increases to provide a passageway for fluid to flow out of the modular cage, through the relief valve, to the environment. When the backflow stops, the pressure in the chamber decreases and the passageway closes, moving the fluid through the interior of the modular cage.

Abstract: A flush actuator assembly is adapted to fit existing valve bodies. The flush actuator assembly includes a plunger rod which is capable of displacing the relief valve post more or less to adjust the flow of water through the flush valve during a single flush. The relief valve post may be displaced different amounts by adjusting the actuator assembly such that the plunger rod contacts the relief valve post at different locations along the central longitudinal axis of the post. Additionally, the relief valve post may be displaced different amounts by providing a plunger rod that has a different range of travel. A method associated with displacing the relief valve post varying amounts is also disclosed.

Abstract: A diaphragm assembly for use in conventional diaphragm-type flush valves includes a flexible diaphragm body having a first side and a second side and a bypass orifice filter insert defined in the diaphragm body. The second side of the diaphragm body includes an annular protrusion and a plurality of protruding ribs, wherein a recess area is defined between the rib and the protrusion. When a pressure difference is applied across the diaphragm body, the second side of the diaphragm body is concave and the first side of the diaphragm body is convex, whereby a distance between the rib and the protrusion decreases in order to prevent the diaphragm body from closing two quickly against a valve seat of a flush valve. A method for controlling pressure differences across the diaphragm body is also disclosed.

Abstract: A diaphragm assembly for use in conventional diaphragm-type flush valves includes a flexible diaphragm body having a first side and a second side and a bypass orifice filter insert defined in the diaphragm body. The second side of the diaphragm body includes an annular protrusion and a plurality of protruding ribs, wherein a recess area is defined between the rib and the protrusion. When a pressure difference is applied across the diaphragm body, the second side of the diaphragm body is concave and the first side of the diaphragm body is convex, whereby a distance between the rib and the protrusion decreases in order to prevent the diaphragm body from closing two quickly against a valve seat of a flush valve. A method for controlling pressure differences across the diaphragm body is also disclosed.

Abstract: A drain support plate for mounting and securing a drain assembly to a deck in a building structure.

Abstract: A grease removal system includes a solid interceptor fluidly coupled to a grease trap tank, which is fluidly coupled to a secondary tank. The secondary tank contains an enzyme solution which biodegrades the grease. The grease removal system may also include a solid interceptor fluidly coupled to a grease trap tank which is fluidly coupled to a replaceable container. Grease is diverted from the grease trap tank into the replaceable container and thereafter discarded. The grease removal system may include a grease trap tank utilizing a unique arrangement of grease baffles and solids baffles which work together to isolate grease within a single region of the grease trap tank for ease of disposal. Finally, the grease removal system includes two level sensors which detect the level of grease within the grease trap tank and, at the appropriate level direct the accumulated grease from the grease trap tank.

Abstract: A flow control module has a valve body with a bore extending therethrough and a first disc occupying substantially the entire area of the bore and having at least one aperture extending therethrough. The valve body also includes a second disc adjacent to the first disc wherein the second disc also occupies substantially the entire area of the bore and has at least one aperture extending therethrough. The discs are rotated so that the apertures may align to increase or to reduce flow therethrough. The valve body also includes a check valve proximate to the first disc and the second disc to close and prevent backflow. Arranging multiple flow control modules in line in a system provides incremental pressure drops to achieve a total pressure drop in stages while minimizing or eliminating cavitation.

Abstract: A drain support plate for mounting and securing a drain assembly to a deck in a building structure.