Patents by Inventor James R. Lindle

James R. Lindle 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: 11840839
    Abstract: A tool for cleaning gutters includes a specialized nozzle that may be attached to a leaf blower via a set of rigid tubing. The nozzle transitions from a tubular shape into a mouth-like opening with a first projection in opposed, spaced relation to a second projection. The tool is particularly well suited to removing debris from gutters with the nozzle in contact with a gutter and made to expel high-velocity air.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: December 12, 2023
    Inventor: James R. Lindl
  • Publication number: 20220235554
    Abstract: A coupling for a tube includes an attachment and a housing. The attachment is attached to the tube and has a barrel-shaped exterior surface. The housing contains the barrel-shaped exterior surface such that the attachment is rotatable in the housing while not being removable from the housing. The coupling thereby allows easy rotation of the tube within the coupling. The coupling may be utilized to attach the tube to another tube or to another structure.
    Type: Application
    Filed: January 22, 2022
    Publication date: July 28, 2022
    Inventors: James R. Lindl, Garrett R. Cox
  • Publication number: 20220220743
    Abstract: A tool for cleaning gutters includes a specialized nozzle that may be attached to a leaf blower via a set of rigid tubing. The nozzle transitions from a tubular shape into a mouth-like opening with a first projection in opposed, spaced relation to a second projection. The tool is particularly well suited to removing debris from gutters with the nozzle in contact with a gutter and made to expel high-velocity air.
    Type: Application
    Filed: December 29, 2021
    Publication date: July 14, 2022
    Inventor: James R. Lindl
  • Patent number: 10760276
    Abstract: An apparatus includes rigid tubing and a tubular nozzle. The tubular nozzle is attached to the rigid tubing and includes a proximal nozzle portion, a distal nozzle portion, and a guide-shoe. The proximal nozzle portion defines a first proximal nozzle sub-portion merging with a second proximal nozzle sub-portion at a first angle. The distal nozzle portion is removably attached to the proximal nozzle portion and defines a first distal nozzle sub-portion merging with a second distal nozzle sub-portion at a second angle. The guide-shoe projects outwardly from an exterior sidewall of the distal nozzle portion. In use, high-velocity air is propelled through the tubular nozzle to remove debris from the gutter. The guide-shoe allows the tubular nozzle to easily bypass hangers that are located in the gutter and to lock the tubular nozzle in the gutter so that it does not unintentionally depart the gutter.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: September 1, 2020
    Inventor: James R. Lindl
  • Publication number: 20200181915
    Abstract: An apparatus includes rigid tubing and a tubular nozzle. The tubular nozzle is attached to the rigid tubing and includes a proximal nozzle portion, a distal nozzle portion, and a guide-shoe. The proximal nozzle portion defines a first proximal nozzle sub-portion merging with a second proximal nozzle sub-portion at a first angle. The distal nozzle portion is removably attached to the proximal nozzle portion and defines a first distal nozzle sub-portion merging with a second distal nozzle sub-portion at a second angle. The guide-shoe projects outwardly from an exterior sidewall of the distal nozzle portion. In use, high-velocity air is propelled through the tubular nozzle to remove debris from the gutter. The guide-shoe allows the tubular nozzle to easily bypass hangers that are located in the gutter and to lock the tubular nozzle in the gutter so that it does not unintentionally depart the gutter.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 11, 2020
    Inventor: James R. Lindl
  • Patent number: 8493654
    Abstract: An interband cascade gain medium is provided. The gain medium can include at least one thick separate confinement layer comprising Ga(InAlAs)Sb between the active gain region and the cladding and can further include an electron injector region having a reduced thickness, a hole injector region comprising two hole quantum wells having a total thickness greater than about 100 ?, an active gain quantum well region separated from the adjacent hole injector region by an electron barrier having a thickness sufficient to lower a square of a wavefunction overlap between a zone-center active electron quantum well and injector hole states, and a thick AlSb barrier separating the electron and hole injectors of at least one stage of the active region.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: July 23, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick Lawrence Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
  • Patent number: 8385378
    Abstract: A gain medium and an interband cascade laser, having the gain medium are presented. The gain medium can have one or both of the following features: (1) the thicknesses of the one or more hole quantum wells in the hole injector region are reduced commensurate with the thickness of the active hole quantum well in the active quantum well region, so as to place the valence band maximum in the hole injector region at least about 100 meV lower than the valence band maximum in the active hole quantum well; and (2) the thickness of the last well of the electron injector region is between 85 and 110% of the thickness of the first active electron quantum well in the active gain region of the next stage of the medium. A laser incorporating a gain medium in accordance with the present invention can emit in the mid-IR range from about 2.5 to 8 ?m at high temperatures with room-temperature continuous wave operation to wavelengths of at least 4.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 26, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick Lawrence Canedy, William W. Bewley, James R. Lindle, Chul Soo Kim, Mijin Kim
  • Publication number: 20130003770
    Abstract: A gain medium and an interband cascade laser, having the gain medium are presented. The gain medium can have one or both of the following features: (1) the thicknesses of the one or more hole quantum wells in the hole injector region are reduced commensurate with the thickness of the active hole quantum well in the active quantum well region, so as to place the valence band maximum in the hole injector region at least about 100 meV lower than the valence band maximum in the active hole quantum well; and (2) the thickness of the last well of the electron injector region is between 85 and 110% of the thickness of the first active electron quantum well in the active gain region of the next stage of the medium. A laser incorporating a gain medium in accordance with the present invention can emit in the mid-IR range from about 2.5 to 8 ?m at high temperatures with room-temperature continuous wave operation to wavelengths of at least 4.
    Type: Application
    Filed: September 10, 2012
    Publication date: January 3, 2013
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
  • Patent number: 8290011
    Abstract: A gain medium and an interband cascade laser, having the gain medium are presented. The gain medium can have one or both of the following features: (1) the thicknesses of the one or more hole quantum wells in the hole injector region are reduced commensurate with the thickness of the active hole quantum well in the active quantum well region, so as to place the valence band maximum in the hole injector region at least about 100 meV lower than the valence band maximum in the active hole quantum well; and (2) the thickness of the last well of the electron injector region is between 85 and 110% of the thickness of the first active electron quantum well in the active gain region of the next stage of the medium. A laser incorporating a gain medium in accordance with the present invention can emit in the mid-IR range from about 2.5 to 8 ?m at high temperatures with room-temperature continuous wave operation to wavelengths of at least 4.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: October 16, 2012
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
  • Publication number: 20120128018
    Abstract: A gain medium and an interband cascade laser, having the gain medium are presented. The gain medium can have one or both of the following features: (1) the thicknesses of the one or more hole quantum wells in the hole injector region are reduced commensurate with the thickness of the active hole quantum well in the active quantum well region, so as to place the valence band maximum in the hole injector region at least about 100 meV lower than the valence band maximum in the active hole quantum well; and (2) the thickness of the last well of the electron injector region is between 85 and 110% of the thickness of the first active electron quantum well in the active gain region of the next stage of the medium. A laser incorporating a gain medium in accordance with the present invention can emit in the mid-IR range from about 2.5 to 8 ?m at high temperatures with room-temperature continuous wave operation to wavelengths of at least 4.
    Type: Application
    Filed: February 9, 2011
    Publication date: May 24, 2012
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
  • Publication number: 20120127564
    Abstract: An interband cascade gain medium is provided. The gain medium can include at least one thick separate confinement layer comprising Ga(InAlAs)Sb between the active gain region and the cladding and can further include an electron injector region having a reduced thickness, a hole injector region comprising two hole quantum wells having a total thickness greater than about 100 ?, an active gain quantum well region separated from the adjacent hole injector region by an electron barrier having a thickness sufficient to lower a square of a wavefunction overlap between a zone-center active electron quantum well and injector hole states, and a thick AlSb barrier separating the electron and hole injectors of at least one stage of the active region.
    Type: Application
    Filed: January 19, 2012
    Publication date: May 24, 2012
    Applicant: The Government of the United of America, as represented by the Secretary of the Navy
    Inventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
  • Patent number: 8125706
    Abstract: A gain medium and an interband cascade laser, an interband cascade amplifier, and an external cavity laser having the gain medium are presented.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: February 28, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Igor Vurgaftman, Jerry R Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
  • Publication number: 20110215705
    Abstract: A surface plasmon polariton device that may be integrated onto a single microchip is disclosed. The device employs a laser that emits polarized light across a gap into a plasmonic waveguide. Surface plasmon polaritons are thereby created in an efficient matter. The device provides a source of surface plasmon polaritons at near infrared wavelengths in an integrated package.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 8, 2011
    Inventors: James Peter Long, Chul-soo Kim, James R. Lindle, Jerry R. Meyer, Igor Vurgaftman
  • Patent number: 5805326
    Abstract: An optical limiter structure which includes a limiter material preferably dissolved in a host. The limiter material is selected from substituted and unsubstituted phthalocyanines, naphthalocyanines, porphyrins, salts of these materials and mixtures thereof, whereas the host is selected from any material which can dissolve the limiter material to at least the extent of 0.1% by weight.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: September 8, 1998
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Arthur W. Snow, James S. Shirk, Filbert J. Bartoli, Jr., James R. Lindle, Michael E. Boyle, Richard G. S. Pong, Steven R. Flom, Joseph F. Pinto
  • Patent number: 5459321
    Abstract: A protective layer laser hardens an optical detector. The material for the rotective layer is Hg.sub.1-Y Cd.sub.Y Te, where Y is selected so that the band gap of the protective layer is higher than the expected energy level for photons impinging on the protective layer. Photons with energy levels lower than the band gap are transmitted by the protective layer while photons exceeding the band gap energy level are absorbed or reflected by the protective layer. A semiconductor junction can be formed on the opposite side of the substrate from a Hg.sub.X Cd.sub.X Te layer with a band gap lower than the expected energy level, so that photons transmitted through the substrate are absorbed in the Hg.sub.X Cd.sub.X Te layer and, therefore, detected at the junction. At sufficiently high intensities where detector damage could result, the protective layer switches so that the incident photons are either absorbed or reflected, thus protecting the detector from damage.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: October 17, 1995
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Filbert J. Bartoli, Craig A. Hoffman, Jerry R. Meyer, James R. Lindle