DAVID CRAIG HALL
Pilots at Hunters Gln Ct, Wheaton, IL

6408873, Jun 25, 2002

Jul 24, 2000

09/625033

David C. Hall - Wheaton IL
Martin E. Marcichow - Hoffman Estates IL

Sloan Valve Company - Franklin Park IL

F16K 31385

137550, 251 40

A flush valve for use with urinals or water closets includes a hollow valve body having an inlet, an outlet, and a valve seat therebetween. There is a piston assembly movable in the hollow valve body to a closing position on the valve seat to control flow through the valve. A pressure chamber is above the piston assembly for holding it on the valve seat. There is a bypass passage to the piston assembly to connect the inlet with the pressure chamber to provide fluid to move the piston assembly to the closing position. The bypass passage includes a filter and an orifice, with the filter including multiple filters in series between the inlet and the bypass.

6216730, Apr 17, 2001

Jun 8, 2000

9/589699

David C. Hall - Wheaton IL

Sloan Valve Company - Franklin Park IL

F16K 31145

137550

A diaphragm-type flush valve for use with toilet devices such as urinals and water closets includes a body having an inlet and an outlet. There is a valve seat between the inlet and outlet and a valve member movable to a closing position on the valve seat to control water flow through the flush valve. The valve member includes a diaphragm peripherally attached to the body and there is a pressure chamber above the diaphragm with water therein holding the valve member on said valve seat. An annular filter body is attached to the underside of the diaphragm at spaced locations thereon and there is a bypass orifice in the filter body positioned at one of the spaced locations. The filter body includes a plurality of peripherally spaced grooves and there is a filter ring mounted on the filter body and facing the grooves. The filter ring and grooves form a plurality of filter passages in communication with the bypass orifice and the flush valve inlet.

6019131, Feb 1, 2000

Jun 11, 1998

9/096094

David C. Hall - Wheaton IL

Sloan Valve Company - Franklin Park IL

F16L 3700

137613

A toilet room flush valve body is connected to a control stop body by means of a tail having a tapered outer surface. The larger end of the tail is connected to the control stop body and the smaller end of the tail is connectd to the flush valve body. The connection between the flush valve body and the tail is fixed, with the connection between the control stop body and the tail being adjustable. The connection between the control stop body and the tail includes a coupling nut threadedly connected to the stop body and having a flange which is inwardly directed toward the tail tapered outer surface. The stop body outlet has an end surface thereon which, with said control nut flange, define a chamber extending peripherally about the tail. A locking ring is positioned within the chamber and clamped by the flange against the end surface and the tail tapered outer surface to adjustably attach the tail to the stop body in a manner to prevent water pressure within the valve body from moving the valve body away from the stop body.

6182689, Feb 6, 2001

Jul 14, 1999

9/353203

John W. Lauer - Streamwood IL
David C. Hall - Wheaton IL

Sloan Valve Company - Franklin Park IL

F16K 31385, E03B 707

137550

A diaphragm assembly for use in a diaphragm type toilet room flush valve includes a diaphragm formed of a flexible material and adapted to separate an inlet and outlet of the flush valve. There is a bypass orifice in the diaphragm. A filter assembly is positioned on the flush valve inlet side of the diaphragm and upstream from the bypass orifice. The filter assembly includes a peripherally extending screen spaced from the underside of the diaphragm with the screen being secured to the diaphragm assembly about an inner peripheral portion thereof.

6227246, May 8, 2001

Apr 14, 2000

9/549731

David C. Hall - Wheaton IL
Martin E. Marcichow - Hoffman Estates IL

Sloan Valve Company - Franklin Park IL

F16K 3158

13762541

An electronically-controlled faucet has a hot-cold water mixing valve disposed in a cup-shaped housing with an open end of the housing accessible from the top side of a deck to which the housing is mounted. Water supply and discharge lines are connectable to the housing. A spacer between the closed end of the housing and the mixing valve supports check valves that prevent cross flow and reverse flow. The spacer also supports a filter screen located downstream of the mixing valve. The filter screen has a wetted area greater than the cross sectional area of the water supply lines and ports. A removable cap covers the housing. All of the mixing valve, check valve and filter components are accessible from above the deck without disconnecting any of the water lines.