Patents Examined by Duane Smith
  • Patent number: 11143961
    Abstract: The present invention relates to resist compostions, in particular to photoresists that can be used in photolithography, especially in the fabrication of integrated circuits and derivative products. The resist compositions of the invention include an anti-scattering component which has a significant amount of empty space, and thus fewer scattering centers, such that radiation-scattering events are more limited during exposure. Such anti-scattering effects can lead to improved resolutions by reducing the usual proximity effects associated with lithographic techniques, allowing the production of smaller, higher resolution microchips. Furthermore, certain embodiments involve anti-scattering components which are directly linked to the resist components, which can improve the overall lithographic chemistry to provide benefits both in terms of resolution and resist sensitivity.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 12, 2021
    Assignee: The University of Manchester
    Inventors: Scott Lewis, Richard Winpenny, Stephen Yeates, Antonio Fernandez
  • Patent number: 10376825
    Abstract: A filter apparatus for filtering a stream of gas is disclosed. The apparatus has a head with an inlet and an outlet, the head also having a first flow conduit connected to the inlet and a second flow conduit the outlet. The apparatus also has a filter and a bowl which contains the filter and is connected to the head. The bowl an annular recess. There is also a connector for connecting the filter to the head and the bowl. The part of the connector that engages the bowl has a protrusion that is inserted into the recess.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: August 13, 2019
    Assignee: Norgren Limited
    Inventor: Colin Billiet
  • Patent number: 10369507
    Abstract: The present invention relates to a filter frame for receiving a media pack, the filter frame comprising a front plate, and first and second gable plates arranged at opposite ends of the front plate. The front plate comprises a groove at each of the ends and a front edge portion of each gable plate is received in a respective one of the grooves. Each gable plate comprises a retainment member arranged at the front edge portion, which retainment member has been engaged with a complementary retainment member of the front plate. The invention also relates to a filter assembly and a method for assembling a filter frame.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: August 6, 2019
    Assignee: CAMFIL AB
    Inventor: Kenny Hedlund
  • Patent number: 10359011
    Abstract: An air filter element includes a filter arrangement, an elbow, and a filter element seal member. The filter arrangement includes a filter media pack having a dirty air inlet and a clean air outlet, wherein air flowing through the clean air outlet flows in a first axial direction and the clean air outlet defines a filter arrangement cross sectional area. The elbow has a first end constructed to extend from the filter arrangement clean air outlet, a second end wherein air flowing through the second end flows in a second axial direction, and an air flow enclosure extending from the elbow first end to the elbow second end. The air flow enclosure includes an air deflector constructed to direct air from the first axial direction to the second axial direction, wherein the second axial direction is different from the first axial direction, and an interior volume between the elbow first end and the elbow second end.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: July 23, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Johan Dewit, Johnny Craessaerts
  • Patent number: 10352211
    Abstract: An exhaust gas purification filter collects PM contained in and purifies exhaust gas emitted from a gasoline direct injection engine. The exhaust gas purification filter has a honeycomb structural body which has a plurality of cells, partition walls and plug members. Each of the cells is surrounded by the partition walls. An opening section of one end of each of the cells is plugged by a plug member. The plug members satisfies a relationship of L/D?50 and L?3, where L is an average length (mm) of the plug members and D is an average pore size mm of the plug members. The honeycomb structural body and the plug members are made of cordierite. The cordierite contains silica, talc, kaolin, alumina and/or aluminum hydroxide, etc.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: July 16, 2019
    Inventor: Mikio Ishihara
  • Patent number: 10350530
    Abstract: A filter holder for a filter element that has an oval-shaped cross section transverse to a longitudinal direction thereof, the filter holder including: a receiving section configured to receive the filter element; fluid inlet for allowing fluid to be filtered into the filter holder; fluid outlet for letting the fluid filtered out of the filter holder; the fluid inlet is arranged so the inflow direction of the fluid to be filtered into the fluid inlet is parallel to the longitudinal direction of the filter element; the fluid inlet has a guide member configured to deflect the fluid as it flows into the fluid inlet such that it flows around in a spiral in the filter element that can be received in the receiving section in order to separate particles contained in the fluid to be filtered on a wall of the receiving section with the aid of centrifugal force.
    Type: Grant
    Filed: April 10, 2016
    Date of Patent: July 16, 2019
    Assignee: MANN+HUMMEL GmbH
    Inventors: Dennis Stark, Thomas Grein, Volker Greif
  • Patent number: 10343097
    Abstract: A ventilation apparatus includes a main body, an air entry and an air exit respectively arranged on two sides of the main body, a filter arranged behind the air entry, and a pressure sensor module located between the filter and the air exit, which senses pressure caused by air flowing inside the main body through the air entry and the filter. The pressure sensor module firstly senses pressure related data when the apparatus begins to start for initial data, and senses pressure related data continuously after the apparatus starts for working data, and transmits these data externally. An analysis monitor device computes a reference pressure offset value and a working pressure offset value according to the initial data and the working data, and compares the two pressure offset values for determining whether the filter needs to be replaced.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: July 9, 2019
    Inventors: Chen-Yu Hung, Yuan-Ping Hsieh, Chao-Hsien Chan, Tung-Hung Shih, Chih-Hsiang Chang
  • Patent number: 10328169
    Abstract: The invention relates to a system for introducing fragrances into the interior of a vehicle via the ventilation system comprising a combination of a fragrance cartridge (2) and an air filter (1), wherein the fragrance cartridge (2) has at least one air inlet opening (3) and at least one air outlet opening (4), as well as a space (17) accommodating a fragrance-emanating substrate, wherein the fragrance cartridge (2) is secured to the air filter (1) in such a manner that air passes through the fragrance cartridge (2) when the ventilation system has been activated.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: June 25, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Ursula Marschall, Erhan Ergen, Andreas Menne
  • Patent number: 10328378
    Abstract: A nestable framed pleated air filter, including a non-self-supporting, compressible, pleated air filter media with a plurality of oppositely-facing pleats and with a plurality of upstream pleat tips and downstream pleat tips and downstream pleat valleys, the pleated air filter media further including a plurality of bridging filaments that are bonded to at least some of the upstream pleat tips. The filter includes a frame with sidewalls that are angled so that the framed pleated air filter is nestable.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: June 25, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew R. Fox, Jonathan M. Lise, John J. Rogers, Stephen M. Sanocki, Kannan Seshadri
  • Patent number: 10307704
    Abstract: The disclosure concerns air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: June 4, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: James R. Scott, Steven Gieseke, Douglas Iddings
  • Patent number: 10300761
    Abstract: A selective filtration system for an operator cab attached to an agricultural vehicle. A HVAC unit supplies conditioned air to an operator space selectively from a CAT 4 filter and a CAT 2 filter. A pressurization blower and two way valve controls flow from the CAT 4 filter to the HVAC unit. Control of flow or isolation of the CAT 2 filter is provided by pressure variations within the system. The CAT 4 filter and CAT 2 filter are isolated from the ambient when they are not in use by valves. A calibrated orifice enables positive pressurization to the CAT 2 filter to hold the valves closed.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 28, 2019
    Assignee: CNH Industrial America LLC
    Inventors: Angela Falagario, Gianluca Fava, Adriano Vaccari
  • Patent number: 10302318
    Abstract: A recursive multi-tiered health isolation facility having multiple tiers of facility types. Each facility type has a probability of containing an airborne infectious contagion and a means for provide pressure differentials between the facilities types. Increasingly higher negative pressurization within facility types with a higher probability of airborne infection provides for nesting facility types and abatement of airborne contagions transmitted between facility types. Further, the air exchange rates for each facility type are increased as the probability that a facility type has an airborne infectious agent increases. The use of HEPA filters with the increased air exchange rates increases the contagion abatement in environments having a higher probability of airborne contagions. Further, exchanged air is treated with ultraviolet light to kill contagions making it through the air filter.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: May 28, 2019
    Inventor: Anita Margarette Chambers
  • Patent number: 10302050
    Abstract: A filter element of an air filter, including: a filter medium for filtering air, partially surrounding an element interior of the filter element with respect to an element axis; wherein the filter element replaceably arranged within an openable filter housing having at least one inlet for air to be purified and at least one outlet for purified air so that said filter element separates said inlet from said outlet; wherein the filter element has at least one element-side support element on an outer side facing away from the element interior on at least one end face which is axial with respect to the element axis; wherein the support element includes at least one element supporting portion, which, at least in the installed state of the filter element in the filter housing, has a surface contour deviating from a flat surface on its end face facing away from the element interior.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 28, 2019
    Assignee: MANN+HUMMEL GmbH
    Inventors: Nadine Sorger, Michael Heim
  • Patent number: 10300417
    Abstract: A filter element (3), in particular an air filter element, for a filter arrangement (1), having a frame (6) that has at least one contact surface (11) for contacting a clamping surface (30) of at least one clamping element (27, 28) of the filter arrangement (1), wherein the at least one contact surface (11) includes straight segments (12, 13, 14) and oblique segments (15, 16) arranged between the straight segments (12, 13, 14), and wherein the straight segments (12, 13, 14) are arranged such that the clamping surface (30) when the latter is displaced relative to the at least on contact surface (11) essentially exclusively contacts the oblique segments (15, 16).
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: May 28, 2019
    Assignee: MANN+HUMMEL GmbH
    Inventor: Martin Wuebbeling
  • Patent number: 10294838
    Abstract: An exhaust cleaning filter has an exhaust gas inflow passage and an exhaust gas outflow passage disposed in alternating fashion; and a porous partition wall for setting the exhaust gas inflow and outflow passages at a distance from each other. A small pore region is sectioned off on the upstream side and a large pore region is sectioned off on the downstream side of the partition wall. The average pore diameter of the partition wall in the large pore region is greater than in the small pore region, and is set so that ash contained in the exhaust gas is able to pass through the partition wall. The exhaust purification filter has a promoting member for promoting the passing of exhaust gas that has flowed into the exhaust gas inflow passage, through the partition wall in the small pore region, and promoting inflow into the exhaust gas outflow passage.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 21, 2019
    Inventors: Kazuhiro Itoh, Hiromasa Nishioka, Yoshihisa Tsukamoto, Daichi Imai, Hiroshi Otsuki, Ryota Koutake
  • Patent number: 10286350
    Abstract: A composite sheet material for making industrial air pollution control filters where the composite sheet material includes a porous, non-filtering, electrostatic dissipation substrate on which is bonded a thin, high efficiency filter layer. Before application of the filter layer, both sides of the porous substrate are imprinted with a pattern of spaced apart, parallel lines of conductive ink which penetrate over 50% of the substrate thickness so that the pattern on one side meets at intersections within the substrate with the pattern on the opposite side to provide a series of continuous, uninterrupted electrostatic discharge pathways running through the substrate to dissipate static electricity charges. The composite sheet material may be pleated and formed as a tube for making baghouse filter cartridges.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: May 14, 2019
    Inventor: Jack T Clements
  • Patent number: 10279920
    Abstract: Embodiments described herein provide for a compartment based inlet barrier for foreign object debris to an auxiliary power unit of an aircraft or watercraft. The apparatus is configured to fit within an inlet compartment of an auxiliary power unit and provides a particulate separator for fluid flow to the auxiliary power units using a porous pleated filter media having a corrosion resistant exterior frame and enables a minimal pressure differential throughout the apparatus while in use. The apparatus may further be releasably secured/unsecured using a plurality of fasteners which enable a user to readily assemble and disassemble.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: May 7, 2019
    Inventors: Brant Farrell, Lance Edwards
  • Patent number: 10279298
    Abstract: A plate-type filter element for gas filtration has a filter medium body with a circumferentially extending seal that contacts seal-tightly a first sealing surface of a filter housing extending in a filter element plane of the filter element. A sealing bracket is connected to the seal and contacts seal-tightly a second sealing surface of the filter housing extending at least partially outside of the filter element plane. A filter device has a filter housing with first and second sealing surfaces. A plate-type filter element is mountable exchangeably in the filter housing. The filter element has a filter medium body, a circumferentially extending seal, and a sealing bracket connected to the seal. The first sealing surface extends in the filter element plane; the second sealing surface extends partially outside of the filter element plane. The seal contacts seal-tightly the first sealing surface; the sealing bracket seal-tightly contacts the second sealing surface.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 7, 2019
    Assignee: MANN + HUMMEL GmbH
    Inventors: Arthur Sudermann, Marcel Hofmeister, Daniel Schmid, Stefan Walz, Matthias Krohlow, Thomas Sieber, Michael Kolmeder, Frank Pflueger, Christian Thalmann, André Roesgen, Robert Hasenfratz, Fabian Wagner
  • Patent number: 10279296
    Abstract: An air filtering system for an electrical enclosure including at least one filtering element arranged to filter an air flow injected into the inlet of the enclosure by a fan device, the system also including several independent filtering cells Ci, with i ranging from 1 to n and n greater than or equal to 3, each filtering cell Ci having a variable filtering capacity, each filtering cell Ci, with i greater than or equal to 2, is rendered active to filter a part of the air flow when the sum of the filtering capacities of the cells, ranging from C1 to Ci?1, drops below a specific threshold.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: May 7, 2019
    Inventors: Josep Lopez, Alain Perrin
  • Patent number: 10279302
    Abstract: Filter elements are described. In an example embodiment, the filter element has a support framework and media defining a closed end and an open end. A non-circular radial seal is depicted, in an example. Variations for particular applications are described.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: May 7, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Jarren B. Mills, Daniel Adamek, Richard Dejong