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: 11840839Abstract: 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: GrantFiled: December 29, 2021Date of Patent: December 12, 2023Inventor: James R. Lindl
-
Publication number: 20220235554Abstract: 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: ApplicationFiled: January 22, 2022Publication date: July 28, 2022Inventors: James R. Lindl, Garrett R. Cox
-
Publication number: 20220220743Abstract: 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: ApplicationFiled: December 29, 2021Publication date: July 14, 2022Inventor: James R. Lindl
-
Patent number: 10760276Abstract: 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: GrantFiled: December 10, 2018Date of Patent: September 1, 2020Inventor: James R. Lindl
-
Publication number: 20200181915Abstract: 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: ApplicationFiled: December 10, 2018Publication date: June 11, 2020Inventor: James R. Lindl
-
Patent number: 8493654Abstract: 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: GrantFiled: January 19, 2012Date of Patent: July 23, 2013Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick Lawrence Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
-
Patent number: 8385378Abstract: 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: GrantFiled: September 10, 2012Date of Patent: February 26, 2013Assignee: The United States of America as Represented by the Secretary of the NavyInventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick Lawrence Canedy, William W. Bewley, James R. Lindle, Chul Soo Kim, Mijin Kim
-
Publication number: 20130003770Abstract: 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: ApplicationFiled: September 10, 2012Publication date: January 3, 2013Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
-
Patent number: 8290011Abstract: 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: GrantFiled: February 9, 2011Date of Patent: October 16, 2012Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
-
Publication number: 20120128018Abstract: 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: ApplicationFiled: February 9, 2011Publication date: May 24, 2012Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
-
Publication number: 20120127564Abstract: 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: ApplicationFiled: January 19, 2012Publication date: May 24, 2012Applicant: The Government of the United of America, as represented by the Secretary of the NavyInventors: Igor Vurgaftman, Jerry R. Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
-
Patent number: 8125706Abstract: A gain medium and an interband cascade laser, an interband cascade amplifier, and an external cavity laser having the gain medium are presented.Type: GrantFiled: March 12, 2009Date of Patent: February 28, 2012Assignee: The United States of America as represented by the Secretary of the NavyInventors: Igor Vurgaftman, Jerry R Meyer, Chadwick L. Canedy, William W. Bewley, James R. Lindle, Chul-soo Kim, Mijin Kim
-
Publication number: 20110215705Abstract: 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: ApplicationFiled: March 5, 2010Publication date: September 8, 2011Inventors: James Peter Long, Chul-soo Kim, James R. Lindle, Jerry R. Meyer, Igor Vurgaftman
-
Patent number: 5805326Abstract: 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: GrantFiled: May 6, 1994Date of Patent: September 8, 1998Assignee: The United States of America as represented by the Secretary of the NavyInventors: 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: 5459321Abstract: 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: GrantFiled: December 26, 1990Date of Patent: October 17, 1995Assignee: The United States of America as represented by the Secretary of the NavyInventors: Filbert J. Bartoli, Craig A. Hoffman, Jerry R. Meyer, James R. Lindle