Patents by Inventor David C. Harper
David C. Harper 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).
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Patent number: 11931074Abstract: An embodiment of a uterine hemorrhage controlling system comprises a suction module including a suction end coupleable to a pump by a connecting tube, and a sealing module coupled to the suction module. The system may further comprise the pump and a filter coupled to the suction module. A uterine hemorrhage controlling method comprises: shielding a suction module that has been delivered into a uterus; sealing an entrance into the uterus while the suction module is situated within the uterus; applying a negative pressure within the uterus upon activation of a pump; and maintaining the negative pressure within the uterus to induce uterine contraction. The method may further comprise delivering the suction module into the uterus; transmitting bodily fluids, out of the uterus through the suction module, and filtering the bodily fluids.Type: GrantFiled: February 25, 2022Date of Patent: March 19, 2024Assignee: Alydia Health, Inc.Inventors: Alexander James Norred, Davis Reed Carlin, George Cochran Harper, David C. Lagrew, Jr., Amelia Michele Degenkolb
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Patent number: 9216445Abstract: A machine for asymmetric rolling of a work-piece includes pair of rollers disposed in an arrangement to apply opposing, asymmetric rolling forces to roll a work-piece therebetween, wherein a surface of the work-piece is rolled faster than an opposite surface of the work-piece; and an exit constraint die rigidly disposed adjacent an exit side of the pair of rollers so that, as the work-piece exits the pair of rollers, the work-piece contacts the exit constraint die to constrain curling of the work-piece.Type: GrantFiled: August 3, 2011Date of Patent: December 22, 2015Assignee: UT-BATTELLE, LLCInventors: Govindarajan Muralidharan, Thomas R Muth, David C Harper
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Patent number: 8938993Abstract: High intensity plasma-arc heat sources, such as a plasma-arc lamp, are used to irradiate glass, glass ceramics and/or ceramic materials to strengthen the glass. The same high intensity plasma-arc heat source may also be used to form a permanent pattern on the glass surface—the pattern being raised above the glass surface and integral with the glass (formed of the same material) by use of, for example, a screen-printed ink composition having been irradiated by the heat source.Type: GrantFiled: November 30, 2010Date of Patent: January 27, 2015Assignee: UT-Battelle, LLCInventors: David C. Harper, Andrew A. Wereszczak, Chad E. Duty
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Patent number: 8778724Abstract: A thin film solar cell and a method fabricating thin film solar cells on flexible substrates. The method includes including providing a flexible polymeric substrate, depositing a photovoltaic precursor on a surface of the substrate, such as CdTe, ZrTe, CdZnTe, CdSe or Cu(In,Ga)Se2, and exposing the photovoltaic precursor to at least one 0.5 microsecond to 10 second pulse of predominately infrared light emitted from a light source having a power output of about 20,000 W/cm2 or less to thermally convert the precursor into a crystalline photovoltaic material having a photovoltaic efficiency of greater than one percent, the conversion being carried out without substantial damage to the substrate.Type: GrantFiled: September 24, 2010Date of Patent: July 15, 2014Assignee: UT-Battelle, LLCInventors: Craig A. Blue, Art Clemens, Chad E. Duty, David C. Harper, Ronald D. Ott, John D. Rivard, Christopher S. Murray, Susan L. Murray, Andre R. Klein
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Publication number: 20130031944Abstract: A machine for asymmetric rolling of a work-piece includes pair of rollers disposed in an arrangement to apply opposing, asymmetric rolling forces to roll a work-piece therebetween, wherein a surface of the work-piece is rolled faster than an opposite surface of the work-piece; and an exit constraint die rigidly disposed adjacent an exit side of the pair of rollers so that, as the work-piece exits the pair of rollers, the work-piece contacts the exit constraint die to constrain curling of the work-piece.Type: ApplicationFiled: August 3, 2011Publication date: February 7, 2013Applicant: UT-BATTELLE, LLCInventors: Govindarajan Muralidharan, Thomas R. Muth, David C. Harper
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Publication number: 20120131960Abstract: High intensity plasma-arc heat sources, such as a plasma-arc lamp, are used to irradiate glass, glass ceramics and/or ceramic materials to strengthen the glass. The same high intensity plasma-arc heat source may also be used to form a permanent pattern on the glass surface—the pattern being raised above the glass surface and integral with the glass (formed of the same material) by use of, for example, a screen-printed ink composition having been irradiated by the heat source.Type: ApplicationFiled: November 30, 2010Publication date: May 31, 2012Inventors: David C. Harper, Andrew A. Wereszczak, Chad E. Duty
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Publication number: 20120073649Abstract: A thin film solar cell and a method fabricating thin film solar cells on flexible substrates. The method includes including providing a flexible polymeric substrate, depositing a photovoltaic precursor on a surface of the substrate, such as CdTe, ZrTe, CdZnTe, CdSe or Cu(In,Ga)Se2, and exposing the photovoltaic precursor to at least one 0.5 microsecond to 10 second pulse of predominately infrared light emitted from a light source having a power output of about 20,000 W/cm2 or less to thermally convert the precursor into a crystalline photovoltaic material having a photovoltaic efficiency of greater than one percent, the conversion being carried out without substantial damage to the substrate.Type: ApplicationFiled: September 24, 2010Publication date: March 29, 2012Applicant: UT-Battelle, LLCInventors: Craig A. Blue, Art Clemons, Chad E. Duty, David C. Harper, Ronald D. Ott, John D. Rivard
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Patent number: 7220936Abstract: A method of thermally processing a material includes exposing the material to at least one pulse of infrared light emitted from a directed plasma arc to thermally process the material, the pulse having a duration of no more than 10 s.Type: GrantFiled: July 30, 2004Date of Patent: May 22, 2007Assignee: UT-Battelle, LLCInventors: Ronald D. Ott, Craig A. Blue, Nancy J. Dudney, David C. Harper
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Patent number: 5763759Abstract: An inbred corn line, designated LH291, is disclosed. The invention relates to the seeds of inbred corn line LH291, to the plants of inbred corn line LH291 and to methods for producing a corn plant produced by crossing the inbred line LH291 with itself or another corn line. The invention further relates to hybrid corn seeds and plants produced by crossing the inbred line LH291 with another corn line.Type: GrantFiled: November 15, 1996Date of Patent: June 9, 1998Assignee: Holden's Foundation Seeds, Inc.Inventor: David C. Harper, II
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Patent number: 5457275Abstract: An inbred corn line, designated LH168, is disclosed. The invention relates to the seeds of inbred corn line LH168, to the plants of inbred corn line LH168 and to methods for producing a corn plant produced by crossing the inbred line LH168 with itself or another corn line. The invention further relates to hybrid corn seeds and plants produced by crossing the inbred line LH168 with another corn line.Type: GrantFiled: December 6, 1993Date of Patent: October 10, 1995Assignee: Holden's Foundation Seeds, Inc.Inventor: David C. Harper, II
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Patent number: 5304715Abstract: An inbred corn line, designated LH199, is disclosed. The invention relates to the seeds of inbred corn line LH199, to the plants of inbred corn line LH199 and to methods for producing a corn plant produced by crossing the inbred line LH199 with itself or another corn line. The invention further relates to hybrid corn seeds and plants produced by crossing the inbred line LH199 with another corn line.Type: GrantFiled: December 6, 1991Date of Patent: April 19, 1994Assignee: Holden's Foundation Seeds, Inc.Inventor: David C. Harper II
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Patent number: 5304727Abstract: An inbred corn line, designated LH217, is disclosed. The invention relates to the seeds of inbred corn line LH217, to the plants of inbred corn line LH217 and to methods for producing a corn plant produced by crossing the inbred line LH217 with itself or another corn line. The invention further relates to hybrid corn seeds and plants produced by crossing the inbred line LH217 with another corn line.Type: GrantFiled: December 4, 1992Date of Patent: April 19, 1994Assignee: Holden's Foundation Seeds Inc.Inventor: David C. Harper, II
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Patent number: 5304716Abstract: An inbred corn line, designated LH197, is disclosed. The invention relates to the seeds of inbred corn line LH197, to the plants of inbred corn line LH197 and to methods for producing a corn plant produced by crossing the inbred line LH197 with itself or another corn line. The invention further relates to hybrid corn seeds and plants produced by crossing the inbred line LH197 with another corn line.Type: GrantFiled: December 6, 1991Date of Patent: April 19, 1994Assignee: Holden's Foundation Seeds, Inc.Inventor: David C. Harper, II
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Patent number: 5304712Abstract: An inbred corn line, designated LH206, is disclosed. The invention relates to the seeds of inbred corn line LH206, to the plants of inbred corn line LH206 and to methods for producing a corn plant produced by crossing the inbred line LH206 with itself or another corn line. The invention further relates to hybrid corn seeds and plants produced by crossing the inbred line LH206 with another corn line.Type: GrantFiled: October 19, 1990Date of Patent: April 19, 1994Assignee: Holden's Foundation Seeds, Inc.Inventor: David C. Harper II
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Patent number: 5285003Abstract: An inbred corn line, designated LH204, is disclosed. The invention relates to the seeds of inbred corn line LH204, to the plants of inbred corn line LH204 and to methods for producing a corn plant produced by crossing the inbred line LH204 with itself or another corn line. The invention further relates to hybrid corn seeds and plants produced by crossing the inbred line LH204 with another corn line.Type: GrantFiled: October 25, 1991Date of Patent: February 8, 1994Assignee: Holden's Foundation Seeds, Inc.Inventor: David C. Harper, II
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Patent number: 4763159Abstract: A movable document handling system, or module, is utilized on a modified standard office copier. When the document handling module is moved away from the platen glass area, the document handling module equipment is disabled and the office copier may be used as a standard copier. When, however, the document handling module is moved over the platen glass, other optics and document handling apparatus are now energized and the standard office copier is now converted into a large document copier. A fold mirror in a first position directs reflected light from the large input document through the standard platen glass for 100% size copying. The fold mirror can be repositioned to reflect the reflected light toward a reduction mirror assembly which then directs the light through the standard platen glass for reduced size copying. The reduction mirror assembly is capable of being repositioned to provide various predetermined amounts of optical reduction.Type: GrantFiled: July 14, 1983Date of Patent: August 9, 1988Assignee: Xerox CorporationInventors: Russell A. Temple, Martin G. Wesseler, David C. Harper
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Patent number: 4523837Abstract: A movable document handling system, or module, is utilized on a modified standard office copier. When the document handling module is moved away from the platen glass area, the document handling module equipment is disabled and the office copier may be used as a standard copier. When, however, the document handling module is moved over the platen glass, other optics and document handling apparatus are now energized and the standard office copier is now converted into a large document copier. Additional mechanical apparatus moves lenses in a predetermined fashion in the document handling module in order to allow for various levels of magnification for reducing the size of the copy from the large input document.Type: GrantFiled: July 14, 1983Date of Patent: June 18, 1985Assignee: Xerox CorporationInventors: Russell A. Temple, Martin G. Wesseler, David C. Harper, Harry F. Eiland, Robert G. Tellkamp
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Patent number: 4331175Abstract: A combination of a pressure vessel for pneumatic fluids at pressures above 200 kilograms per square centimeter and a stationary mounting therefor, the pressure vessel having a neck which fits into a socket in the mounting and is retained therein by a locking mechanism, for example, a bayonet coupling or a polygonal flange on the neck passing through an aperture of the same shape in a flange in the socket. The neck contains a valve and the combination includes a mechanism for controlling the valve. Such mechanism may be in the neck or in the mounting and preferably comprises an axially movable valve operating member mounted by an external screw thread in a second member and coupled to a third member, such as a manually operable knob, by a coupling which transmits rotation, but not translation.Type: GrantFiled: September 15, 1980Date of Patent: May 25, 1982Assignee: Bristol Aerojet LimitedInventors: Arthur L. Brake, David A. C. Harper
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Patent number: 4235267Abstract: A valved coupling for high pressure fluids, particularly for use with pressure vessels containing gases at pressures above 200 kilograms per square centimeter, the coupling providing a first flow path containing a first valve and a second flow path extending from a point in the first flow path downstream of the first valve to a venting passage and a second valve in the second path, the coupling comprising a bore, a valve operating member which is axially movable in the bore, a valve member which is concentric with the valve operating member and is axially movable relative to the bore and the valve operating member, a first axially facing valve seat on the valve operating member, a second valve seat on the valve member facing in the opposite direction to the first valve seat, and stop means engaged by the valve member not earlier than the closure of the first valve in movement of the valve member in a direction to close the first valve whereby after the first path is closed the second path is opened to vent flType: GrantFiled: November 27, 1978Date of Patent: November 25, 1980Assignee: Bristol Aerojet LimitedInventors: Arthur L. Brake, David A. C. Harper