Fire-control Sprinkler Riser Systems
A fire-control riser system that provides a multi-function unitary valve system including providing pressure test, pressure relief, and drain/test fluid flow capability for fire-control sprinkler systems. Furthermore, the fire-control riser system comprises an enclosure that provides for easier installation, pre-assembled components and protects such riser systems from damage during the construction process. Additionally, the fire-control riser system may be substantially comprised of plastic material. The system utilizes an improved flow switch coupling-attachment system that includes no-thread attachment or threaded attachment. The system also provides for multi-function components as well as reduced ports for component installation thereby reducing potential leak areas.

Heat Exchanger Systems
A heat exchanger system, for transferring waste heat from a stream of exhaust air produced in a dryer to a stream of fresh air directed to flow into the dryer, including a retriever, or retriever, comprising an array of a plurality of substantially mutually parallel, substantially vertical heat-transfer conduits having square cross-sections arrayed in alternating staggered rows relative to a perpendicular to the general direction of the flow of the stream of fresh air into the dryer, wherein each heat-transfer conduit is oriented to have one corner facing in the general direction of the flow of the stream of fresh air into the dryer. Associated structure for housing the retriever, supporting it in the flow of fresh air, and directing dryer exhaust air into the heat-transfer conduits is also included. The heat exchanger system is adaptable to a wide variety of dryers, and may be built-in.

Fire-Control Sprinkler System
This invention provides for a valve system for use in fire suppression systems that provides pressure relief, pressure testing, and drain/test fluid flow capability. The valve system consists of a valve body with an attached riser. Adjustably attached to the riser is a rotary handle for raising and lowering a spring loaded valve stem. A blocking plug is provided for attachment to the handle which operates to block the movement of the valve stem during pressure testing of the fire suppression system. A tension disk is adjustably attached to the inside of the riser to manually adjust the spring tension. In addition, a means is provided for preventing system fluid from contacting the spring.

Overflow Drain Outlet Cover System
A system for covering drain pipe outlets, particularly, as they exit a building. The system includes a band that is tightened around the exterior of a pipe as it protrudes through the side of a building. Attached to the band is a hinged cover which is sized to entirely cover the pipe and hidden hinge. The cover may be covered with material to match or complement the building exterior surfacing, such as paint or stucco. In addition, the band portion may also include one or more restictors, such as bars, to prevent unauthorized access or debris from entering the pipe. The system provides for multiple size covers and bands for a wide variety of pipe sizes.

Fire-Control Sprinkler System Riser Means
This invention provides a fire-control sprinkler system riser for a residence, including a unitary manifold for porting to system components. The longitudinal manifold has pipe threads on its ends to connect to an inlet water pipe and an outlet sprinkler system; and it has ports all to one side of the manifold for mounting the riser system components in the following order from inlet to outlet: flow switch means; test and drain valve means; pressure gauge means; and relief valve means. On the other side of the manifold are support connections, as for attachment to a beam of the residence. The manifold may be connected facing either way, i.e., left support or right support, and it has indicia on both manifold facing sides for indicating flow direction and port identifications to a user from either side. Dimensions provide high efficiency in use of space, etc.

Pipe Connection System
A pipe connection system has a non-threaded, quick-pipe connection for connecting pipe in a pressurized system, for connecting piping components within a fire sprinkler system, including a flow switch to a fire sprinkler system riser port. A male and female member are attached through the use of a through-slot in the female member that aligns with a groove in the male member such that a locking clip may be inserted through the female and male members when they are joined, thereby blocking the members from being dis-joined. An O-ring seal in a groove on the male member and sealable bore on the female member allow for a sealed and pressurized piping system.

Well Cap Systems
A system for capping the upper opening of a well having an accommodation for a remotely-located control device. More specifically, a well cap system for a water-well having a pipe casing that permits one or more well control apparatus to be located within the well cap. The system is a two-part assembly, comprising a base and hollow cover, both arranged to be supported by the pipe casing. Further, a constant pressure well system utilizing the water-well cap system.

Backflow Prevention System
A backflow prevention system that helps prevent contamination of potable water distribution systems from backflow at fire hydrant connections.

Manhole Debris-Catching System
A debris-catching system for preventing debris from falling into the pipe opening at the bottom of a manhole catch basin. The debris-catcher comprises two semi-circular halves hinged together such that the two halves may be folded and inserted into a manhole opening. The debris-catcher comprises aligned apertures that allow it to be hooked and lowered into a manhole. The two halves are opened up to form a circular blocker which sets on the manhole bottom flat base. The debris-catcher allows normal effluent flow through the manhole while in place. The debris-catcher floats and will do so during an overflow condition. Further, the debris-catcher will resume its protective function after an overflow condition has subsided.