Patents by Inventor Richard J. Harrison

Richard J. Harrison 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).

  • Publication number: 20240134073
    Abstract: A system and a method for the remote monitoring of an irradiated salt mass within a decay enclosure is provided. The system and the method determine a mass ratio of a first radioisotope relative to a second radioisotope, the second radioisotope having a significantly shorter half-life than the first radioisotope. In addition, the second radioisotope includes a shorter half-life than an effective half-life of the decay enclosure, and the first radioisotope includes a longer half-life than the effective half-life of the decay enclosure. The mass ratio quickly decreases outside of a target range after material diversion, while remaining below the target range for several years. As a consequence, the isotopic mass ratio presents a rapid and enduring indicator of inventory change, which is of extreme importance in detecting a diversion of the irradiated salt mass, which remains a potential proliferation target.
    Type: Application
    Filed: October 13, 2023
    Publication date: April 25, 2024
    Inventors: Richard REED, Eva URIBE, Louise G. WORRALL, Thomas J. HARRISON
  • Patent number: 11915866
    Abstract: An enhanced safety coil that prevents crack formation and propagation to the coil windings from external sources and prevents exposure to fuel is provided. The enhanced safety coil may be used in a solenoid operated gas admission valve (SOGAV), and includes a plastic encapsulation body having at least one body de-stress feature, a coil wound on the plastic encapsulation body, a sleeve forming an outermost side protective wall configured to accommodate the plastic encapsulation body and coil therewithin, and potting provided between the plastic encapsulation body and the sleeve to seal the coil therein. The body de-stress feature is configured to reduce at least one of a formation or a propagation of a crack through the potting to the coil. The plastic encapsulation body forms retention latches configured to mate with a stator.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: February 27, 2024
    Assignee: Woodward, Inc.
    Inventors: Gregory J. Brodsack, Timothy J. Farrow, Richard J. Way, Roger M. Kifer, Michael W. Hamernik, Christopher Dan Harrison
  • Publication number: 20100249321
    Abstract: Ethylenically unsaturated, particularly acrylic, monomers are polymerised using a catalyst system including a manganese carbonyl initiator, an organic halogen reactive substrate and an allylic halide chain termination agent. Desirably the manganese carbonyl initiator is a dimanganese compound, particularly dimanganese decacarbonyl (Mn2(CO)10). The catalysis mechanism appears to involve initiator homolysis, abstraction of halogen from the reactive substrate forming an organic free radical which acts as a chain initiator for polymerisation and eventual reaction of the propagating chain radical with the chain terminating agent. The speed or extent of reaction may be modified by the inclusion of Lewis acids in the reaction mixture. The resulting polymers are telechelic and may have different end groups. The polymers can be reacted further to functionalise them and/or to form block copolymers.
    Type: Application
    Filed: June 9, 2010
    Publication date: September 30, 2010
    Applicant: Croda International PLC
    Inventors: Richard J. Harrison, Bruce C. Gilbert, Andrew F. Parsons, Derek J. Irvine
  • Patent number: 7759443
    Abstract: Ethylenically unsaturated, particularly acrylic, monomers are polymerized using a catalyst system including a manganese carbonyl initiator, an organic halogen reactive substrate and an allylic halide chain termination agent. Desirably the manganese carbonyl initiator is a dimanganese compound, particularly dimanganese decacarbonyl (Mn2(CO)10). The catalysis mechanism appears to involve initiator homolysis, abstraction of halogen from the reactive substrate forming an organic free radical which acts as a chain initiator for polymerization and eventual reaction of the propagating chain radical with the chain terminating agent. The speed or extent of reaction may be modified by the inclusion of Lewis acids in the reaction mixture. The resulting polymers are telechelic and may have different end groups. The polymers can be reacted further to functionalize them and/or to form block copolymers.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: July 20, 2010
    Assignee: Croda International, Inc.
    Inventors: Richard J Harrison, Bruce C Gilbert, Andrew F Parsons, Derek J Irvine
  • Publication number: 20090194975
    Abstract: The present invention is a collapsible self-propelled chair on wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair performs the function of a wheelchair while avoiding the appearance of a traditional wheelchair thus avoiding the invalid stigma often associated with wheelchairs. It can be configured as an assistive mobility device to fill the unmet needs of aging healthy adults who wish to retain their independence and social interactions or a medical device to assist those with medical needs. Additional features such as removable armrest, seat belts, a footrest, or a reclining back are easily added during manufacture and because of the chairs uncomplicated design and duplicity of parts, it is very economical to manufacture.
    Type: Application
    Filed: January 12, 2009
    Publication date: August 6, 2009
    Inventors: Richard J. Harrison, William F. Mann, III
  • Patent number: 7503085
    Abstract: The present invention relates to collapsible cribs. The cribs have one or more of the following characteristics: adjustable length and/or, width and/or height, lightweight, easily collapsed, very compact when collapsed and easily carried, stored and transported. Embodiments disclosed relate to pens, cribs, and play yards with and without wheels.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: March 17, 2009
    Inventors: Richard J. Harrison, William F. Mann
  • Patent number: 7472921
    Abstract: The present invention is a collapsible self-propelled chair on wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair performs the function of a wheelchair while avoiding the appearance of a traditional wheelchair thus avoiding the invalid stigma often associated with wheelchairs. It can be configured as an assistive mobility device to fill the unmet needs of aging healthy adults who wish to retain their independence and social interactions or a medical device to assist those with medical needs. Additional features such as an armrest, a footrest, or a reclining back are easily added during manufacture and because of the chairs uncomplicated design and duplicity of parts, it is very economical to manufacture.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: January 6, 2009
    Inventors: Richard J. Harrison, William Frederick Mann, III
  • Patent number: 7036161
    Abstract: The present invention relates to collapsible self-supported cribs which have one or more of the following characteristics: adjustable length and/or, width and/or height, lightweight, easily collapsed, very compact when collapsed and easily carried, stored and transported. The cribs contain one or more of the following elements: anti-torque posts, crossed support arms, telescoping crossed support arms, flexible liners, Structure Locking Elements, Anti-Collapse Locking Elements and Anti-Tipping Assemblies.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: May 2, 2006
    Inventors: Richard J. Harrison, William F. Mann
  • Patent number: 6776433
    Abstract: The present invention is a portable chair with caster wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair can be configured as an assistive mobility device to fill the unmet needs of aging healthy adults who wish to retain their independence and social interactions. It can also be configured as a collapsible office chair to meet the needs of employers with temporary working staff and for use by college students in crowded dorm rooms. Additional features such as an armrest, a foot rest, or a reclining back are easily added during manufacture and because of the chairs uncomplicated design and duplicity of parts, it is very economical to manufacture.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: August 17, 2004
    Inventors: Richard J. Harrison, William F. Mann
  • Publication number: 20030235560
    Abstract: The present invention is a method for preventing the onset of mastitis in female mammals. The specification discloses the incorporation of one or more lysogenic bacteriophages with specificity to mastitis causing bacteria into a formulation which is applied to a female mammal's udders.
    Type: Application
    Filed: April 23, 2003
    Publication date: December 25, 2003
    Inventor: Richard J. Harrison
  • Patent number: 6428033
    Abstract: The present invention is a portable chair with caster wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair can be configured as an assistive mobility device to fill the unmet needs of aging healthy adults who wish to retain their independence and social interactions. It can also be configured as a collapsible office chair to meet the needs of employers with temporary working staff and for use by college students in crowded dorm rooms. Additional features such as an arm rest, a foot rest, or a reclining back are easily added during manufacture and because of the chairs uncomplicated design and duplicity of parts, it is very economical to manufacture.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: August 6, 2002
    Assignee: R & W Ventures, INC
    Inventors: Richard J. Harrison, William F. Mann
  • Publication number: 20020084627
    Abstract: The present invention is a portable chair with caster wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair can be configured as an assistive mobility device to fill the unmet needs of aging healthy adults who wish to retain their independence and social interactions. It can also be configured as a collapsible office chair to meet the needs of employers with temporary working staff and for use by college students in crowded dorm rooms. Additional features such as an armrest, a foot rest, or a reclining back are easily added during manufacture and because of the chairs uncomplicated design and duplicity of parts, it is very economical to manufacture.
    Type: Application
    Filed: December 11, 2001
    Publication date: July 4, 2002
    Inventors: Richard J. Harrison, William F. Mann
  • Publication number: 20020070532
    Abstract: The present invention relates to collapsible self-supported structures. All of these structures have one or more of the following characteristics: adjustable length and/or, width and/or height, lightweight, easily collapsed, very compact when collapsed and easily carried, stored and transported.
    Type: Application
    Filed: February 13, 2002
    Publication date: June 13, 2002
    Inventors: Richard J. Harrison, William F. Mann
  • Patent number: 4166576
    Abstract: In an adjustable valve means in a sprinkler device, a locking system that includes a breakaway wedging member connected to an adjustable two part sprinkler device and a wedging cavity positioned between the two parts of the sprinkler device to lock the two relatively moveable parts together.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: September 4, 1979
    Assignee: Safe-T-Lawn, Inc.
    Inventor: Richard J. Harrison
  • Patent number: 4145003
    Abstract: A one-piece flexible guard for excluding dirt and other foreign matter from the internal parts of a pop-up sprinkler. More particularly, a flexible circularly shaped piece of material which can be attached to the edge of the fixed housing assembly of a pop-up sprinkler. Said material having a circular hole in its center in which the pop-up sprinkler protrudes, said movable part being securely attached to said material along the edge of said circular hole. The guard being attached to the sprinkler in such a way so as to exclude foreign matter from the internal parts of the sprinkler while permitting the movable nozzle portion free vertical or horizontal movement. In an up position the outer perimeter of the guard forms a dam. The sprinkler also may provide fluid to wash the dirt from outside of the dam portion of the guard when the nozzle is in the extended or up position.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: March 20, 1979
    Assignee: Safe-T-Lawn, Inc.
    Inventors: Richard J. Harrison, William G. Muschett, Charles T. Hardy