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| Number | Title | Issue Date |
| 5205539 | Diaphragm valve A diaphragm valve is described which comprises a lower housing portion and a upper housing portion which are clamped together by a fastening device. An elastomeric diaphragm is located between the lower housing portion and the upper housing portion. A com... | 04/27/1993 |
| 5201492 | Metal diaphragm for diaphragm-type valve A metal diaphragm used in making valves designed for passage of highly pure liquids has, starting at an outer periphery, an outer collar designed to abut a planar base of a valve in sealing fashion and connected to a central part, on which an actuating de... | 04/13/1993 |
| 5199685 | Fluid flow control device comprising a deformable masking membrane transverse to the fluid flow A fluid flow control device comprises a duct having a masking membrane arranged within the duct for movement between a first position, in which it closes the duct, and a second position in which it allows fluid to pass through the duct. The masking member... | 04/06/1993 |
| 5199462 | Valve having rocker valve member and isolation diaphragm A valve having a valve body formed with a chamber with which a plurality of ports in the valve body communicate. At least one of the ports is adapted for connection to a source of pressurized fluid. A rocker valve member is pivotally mounted within the ch... | 04/06/1993 |
| 5188148 | Conduit plate for fluid delivery system A plate structure including conduit and reagent delivery means for a fluid delivery system is provided to deliver precise volumes of a plurality of fluids in sequence to a treatment reservoir. Fluid channels are formed in the plate structure to provide a ... | 02/23/1993 |
| 5186434 | Fluid flow controller A fluid flow controller comprising a flow passage which is opened and closed by the flexing of a diaphragm secured at its periphery characterized in that the diaphragm is a laminate of a plurality of metal diaphragms and in that friction reducing material... | 02/16/1993 |
| 5178304 | Doser-dispenser for at least one pasty and/or liquid product In the doser-dispenser, the doser-piston 28 is carried by a first control tube 2 and the valve 32a forming with the central passage 32b of said piston 28 an intake valve 32 is situated on the side of the supply chamber 25 and is carried by a second contro... | 01/12/1993 |
| 5172728 | Three-way-valve A three-way valve includes a cylindrical auxiliary valve shaft (12); a main valve shaft (11) provided within the cylindrical shaft; a cylindrical auxiliary valve plug (10) provided on a tip of the auxiliary valve shaft; a main valve plug (9) provided on a... | 12/22/1992 |
| 5167397 | Diaphragm valve with mechanically linked diaphragm A chemically inert diaphragm valve is provided in which the diaphragm is attached to the plunger of a solenoid by a threaded insert. The diaphragm material, which is preferably a relatively flexible, chemically inert material such as Kalrez or Chem-Raz, i... | 12/01/1992 |
| 5161774 | Microvalve A microvalve has at least two pressurized-medium connections means forming a valve seat between the connections, a closure member cooperating with the valve seat, an electrical actuating unit deflecting the closure member, and a membrane which moves the c... | 11/10/1992 |
| 5160117 | Bottom-of-vat valve The body (1) of a valve of the invention is welded in the bottom vat (2) in which it constitutes a controlled orifice (5), which orifice is closable by means of a resilient membrane (3) driven by means of a control wheel (11). A complementary orifice (6) ... | 11/03/1992 |
| 5152500 | Aseptic valve construction In an aseptic valve construction, a valve body having an inlet flow passage and at least one outlet flow passage, said valve body having a valve seat surrounding the inlet flow passage, said body having an opening therein in alignment with the inlet passa... | 10/06/1992 |
| 5151178 | Axially-driven valve controlled trapping assembly A solenoid driven valve is disclosed which is adaptable for controlling the introduction of a high pressure fluid into a fluid trapping assembly having an absorption column topped with an annular orifice expansion nozzle. The valve has an inlet port to in... | 09/29/1992 |
| 5145152 | High-vacuum valves In a high-vacuum valve whose valve body is brought in and out of contact with a valve seat, a metal diaphragm facing the valve seat defines a valve seat, an actuating mechanism to open and close the valve body is provided on the reverse side of the diaphr... | 09/08/1992 |
| 5131627 | Diaphragm valve A diaphragm valve includes a single layer, metal diaphragm cooperating with a plastic valve seat. The surface area and volume of the valve seat is limited. Additionally, the central portion of the diaphragm is generally hemispherically offset and extends ... | 07/21/1992 |
| 5127430 | Ceramic weir for valve body A weir valve is disclosed with a solid ceramic weir insert. Optional ceramic pieces are used to line the bore and bonnet opening to protect the exposed inner surfaces of the valve body from fluid in the valve.... | 07/07/1992 |
| 5127625 | Electromagnetically actuated valve Electromagnetically actuated valve, comprising an actuating device, a movable plunger and a valve chamber with an opening for the medium passing through it, which opening may be closed by the plunger. In order to ensure safe functioning of the valve at sm... | 07/07/1992 |
| 5115980 | Manually operated dual invertible pump A manually operable discharge pump for media is operable in a normal position and in an inverted position. A duct means 57b carries the medium. At least one valve 12b substantially closes and opens at least one duct 57b, and the valve 12b has a deformable... | 05/26/1992 |
| 5112027 | Metal diaphragm valve A metal diaphragm valve includes a valve casing and an inverted bowl-shaped metal diaphragm made of an elastic material and having a downwardly projecting collar disk made integral with the metal diaphragm in its center. The metal diaphragm defines within... | 05/12/1992 |
| 5107887 | High pressure fluid regulator A fluid pressure regulator provides features which enable an extended regulator life in high pressure service. Dual flexible diaphragms provide chemical resistance in contact with the working fluid and abrasion and fatigue resistance in contact with a bac... | 04/28/1992 |
| 5108069 | Metal diaphragm valve A metal diaphragm valve includes a valve casing, a diaphragm made of an elastic material and having an upward bulge in the center and a valve system in which the diaphragm is operated to close or establish a fluid-flow relationship between an inlet passag... | 04/28/1992 |
| 5095931 | Method and apparatus for opening and closing multi-way valve The present invention is concerned with method and apparatus for opening and closing a multi-way valve. The present invention discloses method and apparatus for controlling the flow of fluid into a plurality of fluid distributing pipes, wherein an elastic... | 03/17/1992 |
| 5094427 | Flat plate back pressure regulator A pressure regulator has a diaphragm mounted upon a base to form a flow chamber between the diaphragm and the base. A dome pressure casing is mounted upon the base to form a cavity between the casing and the diaphragm. One piece of tubing is connected eit... | 03/10/1992 |
| 5085135 | Coffee maker brew pot valve apparatus An apparatus wherein a coffee maker includes a brew pot formed with a conical upper chamber and a cylindrical lower chamber, wherein the cylindrical lower chamber includes a valve member cooperative with the lower chamber to selectively disrupt and discon... | 02/04/1992 |
| 5083746 | Diaphragm valve with mechanically linked diaphragm A chemically inert diaphragm valve is provided in which the diaphragm is attached to the plunger of a solenoid by a threaded insert. The diaphragm material, which is preferably a relatively flexible, chemically inert material such as Kalrez or Chem-Raz, i... | 01/28/1992 |
| 5082242 | Electronic microvalve apparatus and fabrication An electronic microvalve design and fabrication process for a miniature gas valve. In this microvalve design an objective is to minimize the operating voltage of the valve and minimize the force necessary to close the valve and hold it tightly closed agai... | 01/21/1992 |
| 5069419 | Semiconductor microactuator A semiconductor microactuator has a silicon semiconductor substrate having suspension means connected thereto. The suspension means has a first layer of material having a first thermal expansion coefficient and a second layer of material having a second t... | 12/03/1991 |
| 5065978 | Valve arrangement of microstructured components A valve arrangement from microstructured components worked out of a basic body, for the control of fluids, include an actuation element which is movable relative to a flow path distributor and opens or closes fluid paths depending on its position. A trans... | 11/19/1991 |
| 5065980 | Diaphragm valve A diaphragm valve (2) comprising valve seats (11, 12) describing a sector of a sphere providing a complete closure of the inlet (13) and the outlet (14), when the diaphragm (16) assumes the shape of a spherical segment. The valve permits easy and complete... | 11/19/1991 |
| 5035259 | Fluid flow control valve A valve for use e.g. as a pilot valve in an offshore water deluge fire fighting system has a ported cylindrical body and an elastomeric sleeve defining between them an annular passage for flow between the various ports. Selected ports can be closed by mea... | 07/30/1991 |
| 5027857 | Switching microelectrovalve having a single diaphragm The diaphragm comprises an outer flexible part and a central part in which is overmoulded a rocking lever. The rod portion of said rocking lever is at right angles to the diaphragm plan and intended to be received in a recess of a sliding sleeve. The diap... | 07/02/1991 |
| 5009778 | Axially-driven valve controlled fluid trapping assembly A solenoid driven valve is disclosed which is adaptable for controlling the introduction of a high pressure fluid into a fluid trapping assembly having an absorption column topped with an annular orifice expansion nozzle. The valve has an inlet port to in... | 04/23/1991 |
| 4997014 | Fill nozzle assembly A modular fill assembly is provided for use on a filling machine. The assembly defines a plurality of individual product discharge flow paths each communicating with a common supply. A plurality of fill nozzles are carried by the assembly for each filling... | 03/05/1991 |
| 4986308 | Switching microelectrovalve having a single membrane The invention provides a fluid switching microelectrovalve in which the mobile member playing the role of closure member for one or other of the pipes (18,19) is a single membrane (23) with oriented deformation applied by a rocker (24) against one or othe... | 01/22/1991 |
| 4979527 | Sterilizable valve assembly for dispensing fluid materials and a method of operating the valve assembly A valve assembly having a diaphragm valve configured for efficient cleaning and sterilization, and a method for operating the valve assembly in a manner controlling the fluid material flow therethrough and for effecting cleaning thereof. The valve assembl... | 12/25/1990 |
| 4977929 | Weir valve sampling/injection port The present weir valve includes a weir disposed along a flow passage. A port at the other side of the weir is open to the flow passage when the diaphragm is lifted off the weir.... | 12/18/1990 |
| 4969629 | Diaphragm valve The present invention provides a diaphragm valve including a housing having a chamber and an outlet opening within the chamber. A projecting valve seat, formed by a projection extending into the chamber, has a sloping, annular sealing surface surrounding ... | 11/13/1990 |
| 4969392 | Gravity feed coffee maker A gravity feed coffeemaker includes a water reservoir disposed above a filter basket in which coffee is brewed. The water reservoir has a valve disposed in its bottom, the valve being controlled to open only after the water held in the reservoir has reach... | 11/13/1990 |
| 4968003 | Diaphragm valve A diaphragm valve includes alternative actuator structures. The first actuator arrangement includes an adjustable nut received on a bonnet portion of the valve for adjusting the stroke of an actuating stem. According to a first alternative arrangement, a ... | 11/06/1990 |
| 4955582 | Weirless diaphragm valve A valve used for controlling the flow of fluid consisting of a housing with coaxial inlet and outlet ports on the opposite side of a conical chamber having an upper terminating flanged surface capable of retaining a flat, elastomeric diaphragm. A conical ... | 09/11/1990 |
