Patents by Inventor Frank Fitch

Frank Fitch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7037358
    Abstract: Disclosed embodiments address contaminant management challenges that arise during production of desirably contaminant free product fluid in the operation of PSA equipment, and further address the more serious challenges that arise under intermittent operation of PSA equipment. One disclosed embodiment of a PSA apparatus, intended primarily for normal operating cycle speeds of at least 3 cycles per minute, includes a breather fluidly coupled to a feed end of an adsorber with a contaminant-sensitive adsorbent. The breather can be coupled to the feed end through a shutoff valve closed during production and open during shutdown. Other disclosed embodiments of the PSA apparatus used particular sealing strategies for additional sealing of the apparatus, or at least components thereof, from contaminant ingress.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: May 2, 2006
    Assignees: The BOC Group, Inc., QuestAir Technologies Inc.
    Inventors: Matthew L. Babicki, Bowie G. Keefer, Andrea C. Gibbs, Alberto I. IaCava, Frank Fitch
  • Publication number: 20050223891
    Abstract: Production of oxygen-enriched gas streams is disclosed herein. Air streams contact an oxygen-selective mixed conductor particularly a perovskite material whereby oxygen is retained or adsorbed on the perovskite and can be employed in a variety of processes such as in combusting a fuel gas, heat recovery and boiler related operations.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 13, 2005
    Inventors: Yongxian Zeng, Divyanshu Acharya, Satish Tamhankar, Narayanan Ramprasad, Ramakrishnan Ramachandran, Frank Fitch, Donald MacLean, Jerry Lin, Richard Clarke
  • Publication number: 20050203327
    Abstract: The present invention provides for a process of separating hydrocarbons such as short chain paraffins and olefins from non-hydrocarbon gases using short-cycle time concentration swing adsorption processes. The hydrocarbons are adsorbed from the gaseous stream on highly siliceous nanoporous materials, e.g., such as of aluminum-deficient faujasite-type zeolites, by way of a pressure, vacuum or temperature swing adsorption, then desorbed from the adsorbent in the presence of steam. Optionally, the steam is desorbed from the adsorbent through the use of air or inert gas or a recycle of the waste gas effluent. The invention also provides for a new method of preparing novel shapes such as beads and monolithic structures of the highly sileceous nanoporous materials.
    Type: Application
    Filed: March 2, 2005
    Publication date: September 15, 2005
    Inventors: Stevan Jovanovic, Kirk Limbach, Ravi Jain, Frank Fitch, Martin Bulow, Seungdoo Park
  • Publication number: 20050164890
    Abstract: Supported perovskite-type oxides are described. The perovskite-type oxides have the general formula of AxA?x?ByB?y?O3-?, wherein A is an ion of a metal of Group IIIa or IIIb of the periodic table of elements or mixtures thereof; A? is an ion of a metal of Groups Ia or IIa of the periodic table or mixtures thereof; B and B? are ions of a d-block transition metal of the periodic table or mixtures thereof; x, x?, y and y? vary from 0 to 1; 0.95<x+x?<1.05; 0.95<y+y?<1.05; ? is the deviation from ideal oxygen stoichiometry. This invention also provides for the selection of support materials and the shapes of supported perovskite-type oxides as well as the methods for making them.
    Type: Application
    Filed: January 19, 2005
    Publication date: July 28, 2005
    Inventors: Yongxian Zeng, Rudolph Wolf, Frank Fitch, Martin Bulow, Satish Tamhankar, Divyanshu Acharya
  • Publication number: 20040261618
    Abstract: Disclosed embodiments address contaminant management challenges that arise during production of desirably contaminant free product fluid in the operation of PSA equipment, and further address the more serious challenges that arise under intermittent operation of PSA equipment. One disclosed embodiment of a PSA apparatus, intended primarily for normal operating cycle speeds of at least 3 cycles per minute, includes a breather fluidly coupled to a feed end of an adsorber with a contaminant-sensitive adsorbent. The breather can be coupled to the feed end through a shutoff valve closed during production and open during shutdown. Other disclosed embodiments of the PSA apparatus used particular sealing strategies for additional sealing of the apparatus, or at least components thereof, from contaminant ingress.
    Type: Application
    Filed: May 20, 2004
    Publication date: December 30, 2004
    Applicants: QuestAir Technologies Inc., The BOC Group, Inc.
    Inventors: Matthew L. Babicki, Bowie G. Keefer, Andrea C. Gibbs, Alberto I. laCava, Frank Fitch
  • Publication number: 20020134246
    Abstract: Disclosed embodiments address contaminant management challenges that arise during production of desirably contaminant free product fluid in the operation of PSA equipment, and further address the more serious challenges that arise under intermittent operation of PSA equipment. One disclosed embodiment of a PSA apparatus, intended primarily for normal operating cycle speeds of at least 3 cycles per minute, includes a breather fluidly coupled to a feed end of an adsorber with a contaminant-sensitive adsorbent. The breather can be coupled to the feed end through a shutoff valve closed during production and open during shutdown. Other disclosed embodiments of the PSA apparatus used particular sealing strategies for additional sealing of the apparatus, or at least components thereof, from contaminant ingress.
    Type: Application
    Filed: December 11, 2001
    Publication date: September 26, 2002
    Inventors: Matthew L. Babicki, Bowie G. Keefer, Andrea C. Gibbs, Alberto I. IaCava, Frank Fitch
  • Patent number: 5980611
    Abstract: Substantially all of the carbon dioxide is removed from a gas containing up to about 1% by volume carbon dioxide by subjecting the gas to a pressure swing adsorption process using as the adsorbent a single layer of zeolite having a silicon to aluminum atomic ratio in the range of 1.5 to 70. The process is particularly suitable for removing substantially all carbon dioxide and water vapor contained in air prior to subjecting the air to cryogenic distillation.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: November 9, 1999
    Assignee: The BOC Group, Inc.
    Inventors: Ravi Kumar, Shuguang Deng, Martin Bulow, Frank Fitch, Adeola Florence Ojo, Craig S. Gittleman
  • Patent number: 5932509
    Abstract: Zeolites in particulate form that are uniformly exchanged with both lithium ions and trivalent cations are produced by first partially ion-exchanging the zeolite in powdered form with one or more selected trivalent ions, then agglomerating and calcining the partially trivalent cation-exchanged zeolite, then ion-exchanging the calcined agglomerate with lithium ions, and finally activating the trivalent cation- and lithium ion-exchanged zeolite.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: August 3, 1999
    Assignee: The BOC Group, Inc.
    Inventors: Vijay Ramanand Balse, Martin Bulow, Philip Connolly, Frank Fitch, Adeola Florence Ojo
  • Patent number: 5337364
    Abstract: A communication device for transmitting audio information includes a compact casing which houses processing circuitry. The processing circuitry converts input audio signals into transducer driving signals. A miniaturized microphone is mounted in the casing for receiving the input audio signals. The input audio signals are then amplified and filtered to appropriate signal levels by the processing circuitry. Once the input audio signals have been processed in this manner they are applied to a driver which outputs transducer driving signals analogous to the input audio signals. The transducer driving signals are received by a transducer assembly worn by a user and energize a pair of coils located on opposite sides of an armature forming part of the transducer assembly. The electromagnetic forces generated by the coils when energized cause the armature to move. Movement of the armature in turn drives a plunger so that the plunger moves in a vibrational pattern analogous to the input audio signals.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: August 9, 1994
    Assignee: Canadian Bionic Research Inc.
    Inventor: Frank Fitch