Robert K Roop, 61Wilmington, NC

3949565, Apr 13, 1976

Aug 9, 1974

5/496194

Robert N. Roop - Warminster PA

Fischer & Porter Co. - Warminster PA

F17C 702

62 52

An evaporator for converting a liquified gas such as chlorine into a superheated gas. The evaporator is constituted by a pressure vessel having a heat pipe vertically mounted therein, the lower end of the pipe projecting below the vessel and being coupled to a heat source whereby thermal energy from the source is transferred to the interior of the vessel. Liquified gas is fed into the vessel through an inlet pipe to form a pool in the lower zone thereof, in contact with the heat pipe. The gas evaporated from the heated pool is discharged through an outlet pipe.

4237008, Dec 2, 1980

Jan 11, 1979

6/002769

Brian Ratigan - Philadelphia PA
Karl E. Longley - San Antonio TX
Robert N. Roop - Buckingham PA

Fischer & Porter Co. - Warminster PA

C02B 118
C02B 136

210205

A gravity flow disinfectant contactor adapted to enhance contact between a disinfectant solution such as chlorine and the water to be treated to effect a more rapid and efficient disinfection activity. The contactor is constituted by a rectangular conduit having a cross-sectional diffusion plane adjacent its inlet within which is an array of evenly-spaced diffuser tubes supplied with the disinfectant solution. The tubes each have a row of equi-spaced holes drilled diametrically therethrough to produce side-by-side opposing jets of disinfectant in the diffusion plane at right angles to the cross-flowing water stream. As a consequence, the water flowing through the conduit is subjected to a dense cross fire of multiple jets of disinfectant that are uniformly distributed throughout the diffusion plane and quickly interact with the water within a relatively short downstream distance.

4116016, Sep 26, 1978

Mar 8, 1977

5/775524

Robert Roop - Doylestown PA
Carl Shine - Philadelphia PA

Fischer & Porter Co. - Warminster PA

F17C 702

62 52

An evaporator adapted to convert a liquified gas, such as chlorine, into a gas, the evaporator including an enclosed vapor chamber functioning as a pressure vessel. The vapor chamber is suspended within a water chamber having a heater serving to raise the temperature of the water to a level at which heat transfer through the wall of the vapor chamber causes the liquified gas fed therein through an inlet pipe to evaporate and produce a superheated gas that is discharged through an outlet pipe. The vapor chamber is fabricated of a steel tank whose outer surface is coated with a film of tetrafluoroethylene having a thickness just sufficient to render the film impermeable to water, thereby inhibiting corrosion of the steel surface and the formation of scale thereon, the thickness of the film being insufficient to materially reduce the heat transfer characteristics of the vapor chamber.

4313827, Feb 2, 1982

Sep 4, 1980

6/184031

Brian J. Ratigan - Philadelphia PA
Robert N. Roop - Buckingham PA

Fischer & Porter Co. - Warminster PA

C02F 150
C02F 176

210136

A disinfectant system for intermingling a disinfectant with an effluent to be treated, such as wastewater, to kill pathogens therein, the system enhancing contact between the effluent and the disinfectant to effect a rapid and efficient disinfection action. The system includes an ejector through which a minor portion of the effluent is pumped to produce a motive fluid which induces a disinfectant therein to produce a concentrated disinfectant fluid. Th ejector terminates in a cylindrical diffuser section having a closed end and at least two circumferential series of orifices whereby the disinfectant fluid is discharged therefrom as high velocity jets which project radially with respect to the longitudinal axis of the section. The diffuser section is coaxially disposed at the inlet of a tubular mixing duct which conducts the effluent from a sump tank into a contact tank at relatively low velocity, whereby the effluent is intercepted by a radial array of jets to provide an effective mixing action in the duct in a relatively short period. Supported at the outlet of the duct is a conical baffle to define a lateral outlet therefor, causing the effluent to discharge radially from the duct into the contact tank, thereby enhacing the mixing action in the duct and maximizing the retention time in the contact tank.