Flow Line End Coupling (e.g., Pipe End) Patents (Class 55/505)
  • Patent number: 4526593
    Abstract: A flow control device for filtering and restricting the flow of gas from a gas supply system. Gases stored under pressure in containers or tanks are widely employed in many industries. Such gases are often toxic or explosive, and systems employing such gases must be secure against leaks, clogging and the like. The connector fitting structure includes a flow restrictor plug device and a filter. The connector fitting includes screw threads and may be easily screwed into an end fitting of a gas container and which requires no additional joints to be added to the gas system wherein a minimum volume of gas is trapped external to the gas container in the event of a clogging condition.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: July 2, 1985
    Assignee: International Business Machines Corporation
    Inventor: Bernard S. Meyerson
  • Patent number: 4498914
    Abstract: A filter apparatus having an apparatus for clamping a cylindrical air filter element in place against a fixed surface within a filter housing. The apparatus includes a clamping plate arranged to be moved between a first position in which the clamping plate presses the filter element against the fixed surface, and a second position in which the filter element is released from contacting either the plate or the fixed surface. To move the clamping plate into each position an arrangement of rotatable cam rods, support fins and bearing saddles are provided. Both the clamping plate and the fixed surface are substantially planar and oriented in the support structure so that when the filter is not clamped therebetween it can be removed from the support structure in a direction perpendicular to its main axis.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: February 12, 1985
    Assignee: Donaldson Company, Inc.
    Inventor: Donald J. Ericksen
  • Patent number: 4478618
    Abstract: A particulate trap for removing particulates from the exhaust flow discharged from a diesel engine comprises a trap housing having an inlet connection and an outlet connection for the exhaust flow, an intermediate filter housing with a support plate positioned between one end of the filter housing and the outlet connection. The support plate is provided with a central one way valve controlled bypass passage extending therethrough and a plurality of closely spaced apart internally threaded apertures therethrough located around the bypass passage. A plurality of filter tubes are operatively supported within the filter housing by the support plate. Each of the filter tubes includes a perforated tube having an externally threaded outlet fitting fixed at one end thereof that is releasably threadingly engaged in an associate one of the apertures in the support plate whereby the perforated tube is supported in cantilever fashion.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: October 23, 1984
    Assignee: General Motors Corporation
    Inventors: Kenneth B. Bly, Edward J. Chmiel, Ernest T. Martyniuk
  • Patent number: 4465238
    Abstract: A filter for use inside tapered hot air nozzles positioned at spaced intervals along a feed line in a paint drying oven has an elongate cylindrical conduit formed of perforated stainless steel wrapped by stainless steel wire cloth having an absolute particle rating size of 80 microns. An open end of the conduit is connected to the nozzle port and a capped end extends into the nozzle feed line. A stainless steel adapter has a collar engaging the outer or inner surface of the nozzle adjacent the port and an integrally formed flange extending radially outwardly from the collar. A stainless steel retainer has a collar spot welded to the filter conduit adjacent the open end and an integrally formed flange extending radially outwardly from the collar and connected to the adapter flange by screws. A gasket is positioned between the flanges of the adapter and the retainer.
    Type: Grant
    Filed: September 4, 1981
    Date of Patent: August 14, 1984
    Inventors: Jhina Patel, James P. Van Sweringen
  • Patent number: 4461205
    Abstract: A combination lighting and filtering unit adapted to be mounted in the ventilated ceiling structure of a clean room wherein clean air is directed downwardly into the interior of the room. The unit includes a flow-through light housing having a plurality of florescent light bulbs secured across its interior, sized to overlie and enclose one of a plurality of apertures provided in a mounting grid in the ceiling structure, and an interchangeable filter unit removably mounted in flow-through relation across the top of the housing which is also adapted to be mounted in the apertures on the grid.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: July 24, 1984
    Assignee: Allis-Chalmers Corp.
    Inventor: Bernard R. Shuler
  • Patent number: 4445912
    Abstract: Effluent with entrained particles is drawn through a filter module (A) by an exhaust blower (B). The filter module includes an inertial separator (C) for providing an inertial separation of particles from the effluent air and a plurality of filter cartridges (D) which allow air to pass therethrough but not particles. A plenum E interconnects the filter cartridges with the exhaust blower to channel the filtered air from the filter module to the exhaust blower. A flow controller (F) controls the flow rate of air through each of the filter cartridges maintaining it substantially constant. The flow controller includes a flow rate sensor for sensing the flow rate through each filter cartridge and a butterfly damper blade for selectively restricting the plenum to maintain the flow rate substantially constant. A filter cartridge cleaner (G) is selectively actuated when the flow controller is unable to maintain a preselected minimum flow rate.
    Type: Grant
    Filed: February 4, 1982
    Date of Patent: May 1, 1984
    Assignee: The Mike Volk Co., Inc.
    Inventors: Michael Volk, David A. Metzger, Donald H. Ostby, Robert R. Ostby
  • Patent number: 4435197
    Abstract: A baghouse filter having a filter chamber separated by a partition between the clean gas side and the dirty gas side. The partition has a plurality of apertures, in each of which is mounted a filter unit for removal and replacement. The housing has an access opening to permit access to the interior of the housing and the opening is sufficiently large to permit withdrawal of the partition from the housing through the opening so as to permit replacement of the filter units exteriorly of the housing. In the present instance, the partition of the housing is mounted on a door closing the access opening, so that the displacement of the access door from the housing automatically displaces the partition from the housing to permit removal and replacement of the filter units. The filter unit assemblies permit mounting of the filter units from the dirty gas side of the partition with suitable sealing to prevent unfiltered gaseous medium from bypassing of the filter units.
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: March 6, 1984
    Assignee: The Bahnson Company
    Inventors: Pramodh Nijhawan, William W. Avera
  • Patent number: 4422861
    Abstract: A circular array of accordian pleated filter material is core and edge sealed, placed in a supporting shell, peripherally sealed thereinplace and capped. Core sealing of the array of filter material is accomplished with a fill of hot melt adhesive and edge sealing with application of a covering strip of the same or a similar hot melt adhesive. An overlay of heat shrinkable tape provides final tight sealing and rigidification of the structure.
    Type: Grant
    Filed: February 5, 1982
    Date of Patent: December 27, 1983
    Assignee: American Optical Corporation
    Inventor: Robert J. Dusza
  • Patent number: 4387671
    Abstract: An air filter is described which is used in conjunction with an overflow receptacle or container of an engine cooling system. The container is in fluid communication with the engine cooling system so that coolant may flow from the cooling system to the container when the coolant expands within the cooling system and to permit the coolant to be drawn back inwardly into the cooling system as the coolant cools. The upper end of the container is provided with a fill opening having a threadadly mounted closure element thereon. The closure element is provided with a plurality of openings formed therein to permit air to be drawn into the container as the coolant therein is drawn into the cooling system and to permit air to escape outwardly therethrough when coolant is passing from the cooling system into the container.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: June 14, 1983
    Inventor: Robert D. Jarvis
  • Patent number: 4386948
    Abstract: A filter device used to filter medical anesthesia gases and other inhalable respiratory gases. The filter device has a ported housing, and a filter member within the housing. The filter member is a porous sheet that is transversely pleated and draped to define a peripheral foot of such porous sheet. The peripheral foot is sealed along its entire periphery to the housing. Two sets of intermeshing hangers are provided with both sets of the hangers being anchored to the housing and distortingly maintaining the porous sheet in such a pleated condition.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: June 7, 1983
    Assignee: American Hospital Supply Corporation
    Inventors: Pradip V. Choksi, Alan A. Davidner, Claude A. Vidal
  • Patent number: 4386949
    Abstract: An arrangement for connecting an air filter for automotive vehicles to an associated carburetor. The filter including a cap and a housing having at least one sleeve projecting from the bottom wall thereof. Said sleeve being closed at its free end by a cross wall provided with a slot which is registerable with complimentary slots in the cap. A connecting device comprising a seat for the end of a pin permanently fixed to said carburetor and projecting from it. The seat is in an insert having on its outer surface two diametrically opposite ribs adapted to engage teeth provided on surfaces facing each other of two diametrically opposite legs when the insert, on moving upwardly, penetrates between the legs, thereby catching the end of the pin. At the end of the connecting device opposite the seat is a head adapted to be received through said registerable slots and rotated relative thereto to thereby secure the assembled filter relative to the carburetor.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: June 7, 1983
    Assignee: ITW Fastex Italia S.p.A.
    Inventor: Alberto Bassi
  • Patent number: 4372853
    Abstract: A removable and reusable filter attachment system. A filter medium is fixed o, and surrounded by, a filter frame having a coaxial, longitudinally extending, annular rim. The rim engages an annular groove which surrounds the opening of a filter housing. The annular groove contains a fusible material and a heating mechanism for melting the fusible material. Upon resolidifying, the fusible material forms a hermetic bond with the rim and groove. Remelting allows detachment and replacement of the filter frame.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: February 8, 1983
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Glenn L. Mayfield
  • Patent number: 4350592
    Abstract: A cartridge filter for gases and liquids having a filter element clamped between an upper and lower cover. The filter includes a profile ring composed of a sealing compound which is firmly connected to the upper end face and an identical and corresponding profile ring firmly connected to the lower end face of the filter element. Sealing rings are embedded in the profile rings. The covers each includes one circumferential groove engaging around the sealing rings in a claw-like manner.
    Type: Grant
    Filed: April 10, 1980
    Date of Patent: September 21, 1982
    Inventor: Dirk G. Kronsbein
  • Patent number: 4350509
    Abstract: An air cleaner and an intake tube having an air permeable portion at one end thereof forms an inner support for the air cleaner, but which is detachable therefrom. In one embodiment, the air cleaner is a single integral unit which is disposed of after use. The unit includes a tubular filter element having an opening sized to receive the intake tube, a shell surrounding the filter element, one end cap sealing and forming a junction between the filter element, shell and intake tube at one end, another end cap sealing and forming a junction between the filter element and shell at the other end and having an aperture through which the intake tube is inserted and at least one air intake aperture in one of the caps. In another embodiment, a centrifugal separator and a dust collector cap which may be emptied from time to time to extend the life of the air cleaner is incorporated therein. The intake tube may also have a right angle bend for side mounted filters.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: September 21, 1982
    Assignee: Donaldson Company, Inc.
    Inventors: Steven M. Alseth, Bruce M. Sullivan
  • Patent number: 4314831
    Abstract: An air filter assembly for a heavy duty motor vehicle generator is disclosed. The assembly includes an adaptor plate and connecting means for rigidly connecting the adaptor plate to one end of the generator. The assembly further includes a housing enclosing a chamber and an air filter element removably disposed in the chamber, the housing having a circular threaded collar threadably engaged to the adaptor plate. Through the air filter element, and apertures provided in the housing and adaptor plate cooling air flow is permitted to flow but particulate foreign matter is excluded.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: February 9, 1982
    Inventor: Mato Barbic
  • Patent number: 4278453
    Abstract: A gas purification system featuring in one aspect an improved arrangement for indicating carbon monoxide and moisture content, and in another aspect an improved arrangement for mounting a replaceable cartridge in a housing.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: July 14, 1981
    Assignee: Mako Compressors Inc.
    Inventor: Jordan N. Klein
  • Patent number: 4266955
    Abstract: A filter assembly for particle-in-gas filtration comprises ducts leading to a filter housing which is removable from the ducts and is provided with covers to prevent egress of material from the housing during transport. Covers may be also provided for the ducts. The surfaces of the duct cover and housing cover which are exposed to the environment when the housing is removed may be shielded while gas is passed through the assembly to minimize the exposure of the surfaces to the gas passing through the assembly.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: May 12, 1981
    Assignee: United Kingdom Atomic Energy Authority
    Inventor: Stanley Hackney
  • Patent number: 4260402
    Abstract: The invention comprises a die-cast housing of substantially dish shape having a peripheral bolting flange for replaceable mounting thereof to the end wall of an oil-flooded gas compressor. The housing has a partition formed therein to subdivide the same into a first, gas admittance area and a second, air/oil separator and oil reservoir area. The housing has a first port formed therein opening onto the first area for admitting ambient air thereinto for conduct thereof to a compressor gas inlet port, and a second port opening onto the second area for discharging compressed gas therethrough. The second area of the die-cast housing is adapted to confine therewithin the compressed gas discharge pipe of a compressor and, therebelow, a reservoir of oil.
    Type: Grant
    Filed: May 17, 1979
    Date of Patent: April 7, 1981
    Assignee: Ingersoll-Rand Company
    Inventors: Robert W. Shaffer, Henry W. Morse
  • Patent number: 4256473
    Abstract: Apparatus for filtering dust particles from air has a bag head and a bag assembly which includes a filter bag and a skeletal bag frame received within the bag. A cylindrical bag frame collar secured to the upper end of the bag frame threadably engages a cylindrical bag head collar which depends from the bag head. Threads on the head collar are formed by rods tack welded to the outer surface of the collar. The bag frame collar receives the head collar therein and has two rivets and an adjustable bolt equiangularly spaced and projecting radially inwardly to engage the threads on the head collar. The bolt serves to lock the two collars in assembly and prevent relative rotation and loosening due to vibration.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: March 17, 1981
    Assignee: The Spencer Turbine Company
    Inventor: Dominick De Martino
  • Patent number: 4222755
    Abstract: An air filter for use on internal combustion engines which operate primarily in heavy dust conditions, and which includes a mounting member as part of the air filter housing that permits the spinning of the air filter cartridge for centrifugal cleaning in place on the internal combustion engine, without removal of the filter cartridge from the air filter housing.
    Type: Grant
    Filed: November 17, 1978
    Date of Patent: September 16, 1980
    Inventor: LaVon P. Grotto
  • Patent number: 4209310
    Abstract: A novel arrangement for mounting the filter elements of an air filter in a manner which facilitates their removal and replacement without tools or accessories.
    Type: Grant
    Filed: October 5, 1978
    Date of Patent: June 24, 1980
    Assignee: Donaldson Company, Inc.
    Inventor: James L. Berkhoel
  • Patent number: 4209311
    Abstract: A filter for cleaning large quantities of contaminated gas, wherein the gas to be cleaned is passed through a filter medium which is spanned onto a drum. The retained contaminants are removed by a device which wipingly passes over the filter medium. The drum is fixedly connected with a conduit or line through which there is conducted the contaminated gas. The removal device comprises a compressed gas-blast device equipped with at least one jet nozzle and movable over at least part of the outer surface of the drum surrounds the periphery of such drum. The jet nozzle is directed towards the surface of the filter medium. Means serve for the withdrawal of the separated contaminants from the internal hollow space or compartment of the drum.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: June 24, 1980
    Assignee: Sulzer Brothers Limited
    Inventors: Helmut Deeg, Siegmund Schulze
  • Patent number: 4205970
    Abstract: An adapter, particularly for medical gas systems which require sanitary interconnections, comprises a housing which has a gas flow passage therein containing a filter or other sterilizing device with a connection at one end permitting easy coupling to the gas supply line and the housing has another connection for the discharge of the gas after filtering to the place of use.
    Type: Grant
    Filed: June 13, 1978
    Date of Patent: June 3, 1980
    Assignee: Dragerwerk Aktiengesellschaft
    Inventor: Helmut Strecker
  • Patent number: 4197101
    Abstract: An air cleaner for a heavy duty vehicle comprises a container having an open end for receiving a filter cartridge, and a removable closure for the open end. The closure includes a first portion which defines a central opening which is removably secured to the open end by circumferentially spaced bolts and a second portion comprising an air valve housing which is mounted on the first portion through a swivel connection to permit the air valve housing to pivot relative to the container without removal of the bolts. The air valve housing includes a pair of inlets connected to different air sources, such as to ambient outside air and to heated engine air respectively, and a valve mechanism which opens one of the inlets while the other is closed. Air communicating through the open inlet is communicated through the central opening into the container.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: April 8, 1980
    Assignee: Fram Corporation
    Inventors: Edmond H. Cote, Jr., Kenneth A. Conti
  • Patent number: 4175936
    Abstract: A diffuser of the type used in supplying filtered air to a clean work area includes a filter housing within which is supported a filter panel. Gaskets are carried on the upper and lower peripheral surfaces of the panel and an adjustable, resilient clamp operably engages the filter and biases the filter and the upper gasket to form a knife edge seal with a portion of the filter housing. A protective grill assembly is sealingly latched to the housing and also forms a knife seal with the lower gasket on the filter panel. Further, a curtain support member is disclosed which is carried by the grill assembly and seals an isolation curtain airtight to the ceiling.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: November 27, 1979
    Assignee: Weber Technical Products Division of Craig Systems Corp.
    Inventors: Wendell J. Lough, Donald E. Bishop
  • Patent number: 4157902
    Abstract: An improved air cleaner designed for insertion in the air intake conduits of over-the-road vehicles, to have the same diameter as the conduits, and to be readily replaceable as a unit. The invention particularly includes an air-permeable member which tapers, in combination with streamliners for improving the flow of air through the device.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: June 12, 1979
    Assignee: Donaldson Company, Inc.
    Inventor: Joseph C. Tokar
  • Patent number: 4145194
    Abstract: A filter bed separator for separation of liquid or solid particulates from gas streams and/or for washing of accumulated solids from the filter bed. Each separator contains one or more cylindrical filter bed elements, each comprising a non-matting bed of filter material defining a hollow cylindrical filter bed element having a hollow core, with the filter bed terminating at the walls of a gas inlet duct. The gas inlet duct comprises one or more ducts disposed along at least a portion of the longitudinal length of the cylindrical element with the walls of the duct extending from outside the housing of the separator to the inner circumference of the filter bed.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: March 20, 1979
    Assignee: Monsanto Company
    Inventors: Walter R. Horlacher, Jr., Jack L. Owens
  • Patent number: 4138234
    Abstract: Holder for an annular filter includes a support frame or basket with a flared portion at its upper end which cooperates with the inner leg of an inverted U-shaped sealing ring to clamp the upper end of the filter. The sealing ring has its outer leg seated on a sealing gasket positioned on top of a support plate surrounding an aperture through which the filter is lowered during operation of a particle collection apparatus. The holder is replaceably sealed in position by screwing a pair of threaded rings together to force the flared portion downwardly. The diameters of the various parts are larger than the aperture to prevent them from being dropped through the aperture and the overall design is such that the filters can be replaced from the upper clean side of the collection apparatus rather than the lower dirty side.
    Type: Grant
    Filed: August 11, 1977
    Date of Patent: February 6, 1979
    Assignee: UOP Inc.
    Inventor: Frantisek Kubesa
  • Patent number: 4131441
    Abstract: A rain hood for the air intake system of an internal combustion engine includes a body and a cover. The body includes a tubular portion which is received within the open end of an air intake tube and an outwardly flared conical portion which extends from the tubular portion and is provided with a lattice-work structure defining openings to permit substantially uninhibited flow of ambient air into the open end of the intake tube. The cover closes the open end of the flared portion of the body, and includes a closing portion closing the open end of the flared portion and a circumferentially extending portion which extends from the closing portion and circumscribes the flared portion. The cover and the body carry a locking mechanism which locks the body to the cover so that the cover cannot be removed from the body once it is installed thereon.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: December 26, 1978
    Assignee: Fram Corporation
    Inventor: Everett H. Randall
  • Patent number: 4092136
    Abstract: An air filtering system includes a motor driven exhaust fan operable to draw air through a filter for particulate spray material, support means for supporting a dispenser adapted under operator control to dispense particulate spray material into the air and means responsive to operator removal and return of the dispenser to the support means for energizing and deenergizing the motor, respectively.
    Type: Grant
    Filed: September 14, 1976
    Date of Patent: May 30, 1978
    Assignees: William D. Farnham, Teddar S. Brooks
    Inventor: Dominic J. Zimbardi
  • Patent number: 4088463
    Abstract: The filtration module is adapted to be installed in groups occupying all or a substantial portion of a wall or ceiling area in a room. The filter elements are replaceable from inside the room without disassembly or removal of the housing structure. The filter elements are held in secure sealing relationship against recessed edge surfaces by an easily removed retaining frame normally secured to the housing with fastenings accessible from within the room.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: May 9, 1978
    Assignee: Frederick L. Fichter
    Inventor: Irwin M. Smith
  • Patent number: 4039308
    Abstract: A rigid foam hemisphere attaches to the air inlet of cylindrical convex air rigid foam straightener and to internal combustion engine to define air filter therefor.
    Type: Grant
    Filed: September 10, 1975
    Date of Patent: August 2, 1977
    Inventor: Edward Paul Schiff
  • Patent number: 4032311
    Abstract: A filter formed of minute fibers of borosilicate glass is mounted to the inlet-outlet valve of a rechargeable pressure vessel to remove entrained particles from fluid entering and exiting the vessel.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: June 28, 1977
    Assignee: Dacor Corporation
    Inventors: Jack L. Bohmrich, William A. Bowden, Jr., Vernon G. Pedersen
  • Patent number: 3958967
    Abstract: A motorcycle spark arrestor comprising a cylindrical housing connectable to the motorcycle exhaust pipe and a screen positioned in the housing so as to intercept all the exhaust gases flowing therethrough, the screen including a planar, rectangular, central section positioned parallel to the longitudinal axis of the housing and contacting the opposite sides thereof, and first and second planar end sections made integral with the opposite ends of the central section and extending in opposite, parallel directions therefrom, at an obtuse angle thereto, the free ends of the end sections contacting the housing.
    Type: Grant
    Filed: August 2, 1974
    Date of Patent: May 25, 1976
    Assignee: Bassani Manufacturing
    Inventor: David S. Nakamura
  • Patent number: 3951293
    Abstract: A gas-permeable liquid closure for containers of liquids or solids which emit or absorb gas is provided by a film of an unsintered tetrafluoroethylene having a thickness of from about 0.1 to 3 mm., a fibrillated structure and a density of less than about 1.4. The film is supported across an opening of the container by a perforated cap or perforated sealing diaphragm which is disposed on either one or both sides of the film.
    Type: Grant
    Filed: January 21, 1975
    Date of Patent: April 20, 1976
    Assignee: Riedel-De Haen Aktiengesellschaft
    Inventor: Horst Schulz