1
Robbins James F: Diaphragm valve. Sybron Corporation, Roessel Theodore B, Rich James A, February 19, 1974: US3792720 (21 worldwide citation)

A diaphragm valve is provided with means to prevent wrinkling of the diaphragm and to accurately control the flow through the valve. The valve has a body with at least one substantially flat valve seat on an exterior surface. Passages extend from an inlet chamber to the valve seats and from the valv ...


2
Beach William A, Schlauch Richard M: Settling rate tester. Sybron Corporation, Roessel Theodore B, Rich James A, May 28, 1974: US3812966 (12 worldwide citation)

The settling rate of particulate matter in a fluid is determined by passing a mixture of the fluid and the particulate matter through an inclined tube at a known flow rate within the laminar flow range. Sensors may be used to detect the presence of particles at one or more levels in the tube; and th ...


3
Malkin William J: Automatically backwashed gravity filter. The Permutit Company, Roessel Theodore B, Rich James A, October 15, 1974: US3841485 (12 worldwide citation)

An automatically backwashed gravity filter is provided with means, such as an automatic level controller, for detecting the fluid level in a backwash storage compartment; and means for adjusting the supply rate of unfiltered fluid in proportion to changes in the fluid level in the backwash storage c ...


4
Anderson John R: Process and apparatus for removing impurities from condensate water. The Permutit Company, Roessel Theodore B, Rich James A, November 19, 1974: US3849306 (12 worldwide citation)

Condensate water containing ammonia is filtered and demineralized in a first bed containing strong acid cation exchange resin, preferably having an effective particle size on the order of 0.30 mm, followed by treatment in a second strong base anion exchange resin, and final treatment in a third bed ...


5
Beach William A, Schlauch Richard M: Settling rate tester. The Permutit Company, Roessel Theodore B, Rich James A, March 11, 1975: US3869903 (12 worldwide citation)

The settling rate of particulate matter in a fluid is determined by passing a mixture of the fluid and the particulate matter up through an inverted cone at a known flow rate. The particulate matter accumulates at the level in the cone where the upward velocity of the fluid is equal to the settling ...


6
Weiss Charles O, Epstein Arthur Charles: Method of softening water to provide easily drained and easily filtered precipitates. The Permutit Company, Roessel Theodore B, Rich James A, October 1, 1974: US3839199 (12 worldwide citation)

Water having calcium and magnesium hardness is first treated with an excess of softening chemical sufficient to raise the pH of the water to at least 11.0 in an inverted, frusto-conical tank containing a granular contact material to remove calcium and magnesium hardness. The water containing the exc ...


7
Maroney William J: Apparatus for fluid treatment. Sybron Corporation, Roessel Theodore B, Rich James A, May 28, 1974: US3812969 (9 worldwide citation)

Apparatus for treating fluid in which the fluid is passed through a bed of solid particles, such as filter media or ion exchange resins, is provided with improved means for supporting the bed and improved means for backwashing the bed. The apparatus includes an outer vessel having a closed bottom an ...


8
Potjer Bert, Sartor Luigi, Druschel Robert Lindsay: Improved applicator die. Avery Dennison Company, RICH James A, January 8, 1998: WO/1998/000005 (9 worldwide citation)

An improved applicator die (50) for alternatively depositing different liquid coating materials on a moving web (10) comprises a die body (52) having switch bars (80, 84) for opening and closing respective flow passageways (76, 82) for supplying the different liquid coating materials to an elongated ...


9
Gibbens Roy P: Multi-way valve. Sybron Corporation, Roessel Theodore B, Rich James A, April 8, 1975: US3875961 (7 worldwide citation)

A pneumatic air valve core serves as a check valve during inflation of articles such as sphygmomanometer cuffs and as a flow control valve when the pressure is released. The core is mounted in a valve housing, which is connected by screw threads to an inlet housing. An adjusting screw is mounted in ...


10
Sohngen Edwin L: Film separator. Sybron Corporation, Roessel Theodore B, Rich James A, September 30, 1975: US3908984 (6 worldwide citation)

Sheets such as cut X-ray films are separated from a stack by a disc positioned with its front face parallel to the top sheet of the stack and with the axis of the disc generally perpendicular to but not intersecting the top sheet. A slot extends diagonally through the edge of the disc, and an edge p ...