| Patent Number |
Title Of Patent |
Date Issued |
| 4972877 |
Bypass valve |
November 27, 1990 |
| A bypass/diverter valve for controlling the flow of fluid from a source to a fluid treatment device such as a water softener. The valve includes a valve housing defining a circular chamber having a cylindrical wall into which three spaced ports open into. Two of the ports form inlet/outl |
| 4889623 |
Brining system |
December 26, 1989 |
| A brining system including a brine reservoir containing a supply of salt and a brine valve assembly disposed in the reservoir below the level of the salt and including a vessel for accumulating a predetermined quantity of fluid to be discharged into the reservoir to form a regeneration |
| 4863612 |
Apparatus and method for recovering materials from process baths |
September 5, 1989 |
| A method and apparatus for selectively recovering ions from an aqueous solution and producing deionized water for reuse. When used in a nickel plating process, a rinse water stream is passed through a first cation removing assembly that contains an ion exchange media having a greater |
| 4804465 |
Water treatment apparatus |
February 14, 1989 |
| A water treatment system including a pair of tank assemblies 110, 112 interconnected by a valve module 114 for controlling the communication of water to be treated to an on-line tank and the regeneration of an exhausted tank. Each tank assembly includes a compartment containing a wat |
| 4764280 |
Water softening apparatus |
August 16, 1988 |
| A water softening apparatus and method for reducing odor in, and improving the taste of, problem water, including a pair of treatment tanks and a control valve assembly for determining which tank is on-line, and which tank is off-line, and for controlling the regeneration of the off-line |
| 4698164 |
Filter apparatus |
October 6, 1987 |
| A filtering apparatus including a fluid monitoring head and a replaceable filter cartridge removably fastened to said head. The cartridge includes a shut off mechanism for interrupting fluid flow through the cartridge when a predetermined quantity of fluid has been treated by the filter. |
| 4693814 |
Water treatment apparatus |
September 15, 1987 |
| A water treatment system including a pair of tank assemblies 110, 112 interconnected by a valve module 114 for controlling the communication of water to be treated to an on-line tank and the regeneration of an exhausted tank. Each tank assembly includes a compartment containing a wat |
| 4650586 |
Fluid treatment system |
March 17, 1987 |
| Apparatus and method for purifying a solvent such as water, using a reverse osmosis process. The apparatus includes a reverse osmosis (R.O.) unit, a storage tank for storing permeate produced by the reverse osmosis unit, and a flushing arrangement for cleansing the concentrate side of a |
| 4629568 |
Fluid treatment system |
December 16, 1986 |
| Apparatus and method for purifying a solvent such as water, using a reverse osmosis process. The apparatus includes a reverse osmosis (R.O.) unit 10, a storage tank 24 for storing permeate produced by the reverse osmosis unit, and a flushing arrangement for cleansing the concentrate side |
| 4579242 |
Molded plastic pressure tank |
April 1, 1986 |
| The improved tank construction includes two injection molded thermoplastic sections having overlapping male and female circumferential wall portions. The male wall portion includes a crowned bonding surface that diverges inwardly towards the central axis of the tank. The bonding surface |
| 4427549 |
Deionization method and apparatus |
January 24, 1984 |
| A deionization method and apparatus comprising separate cation and anion removing sections 10a, 10b, the cation section having separate tanks 14, 16 and the anion section having separate tanks 24, 26. Respective cation and anion control valve assemblies 18, 28 control the fluid communica |
| 4337153 |
Water softening apparatus |
June 29, 1982 |
| An improved resin tank for a water softening apparatus including an expansible chamber 50 that enlarges during fluid flow through the tank to displace any free space in the tank, thereby maintaining the compactness of the water softening material. The expansible chamber 50 is formed by a |
| 4336134 |
Float-actuated level control valve |
June 22, 1982 |
| A float-actuated, level control valve especially suited for controlling liquid flow into and out of brine tanks of water softening systems. A magnet-operated ball check inside a flow chamber selectively closes ports of the chamber to interrupt liquid flow. Movement of the magnet and |
| 4298025 |
Control valve for water softeners |
November 3, 1981 |
| An improved water softener control valve having a housing defining a servo-control chamber that encloses concentrically mounted water usage and regeneration control discs. Each disc is incrementally rotatable by ratchet drives that are driven by water usage and regeneration control t |
