Patents by Inventor David M. Fischer
David M. Fischer 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: 11931220Abstract: Wax-based compositions for making barrier layers used in oral treatment devices are thermally stable when formed into a flat sheet or three-dimensional article to a temperature of at least 45° C. and are plastically deformable at room temperature (25° C.). The wax-based compositions include a wax fraction homogeneously blended with a polymer fraction. The wax fraction includes at least one wax and the polymer fraction includes at least one polymer selected such that, when the at least one wax and at least one polymer are homogeneously blended together, they yield a wax-based composition having the desired properties of thermal stability and plastic deformability. Barrier layers and oral treatment devices made from such wax-based compositions are dimensionally stable to a temperature of at least 40° C. without external support and can be plastically deformed in a user's mouth to become at least partially customized to the size and shape of user's unique dentition.Type: GrantFiled: April 9, 2020Date of Patent: March 19, 2024Assignee: ULTRADENT PRODUCTS, INC.Inventors: Steven B. Johnson, David Lawrence Margetts, Barry Lee Hobson, Jonathan D. Scoville, Neil T. Jessop, Peter M. Allred, Dan E. Fischer
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Publication number: 20240068135Abstract: Interlacing equipment may be used to form fabric and to create a gap in the fabric. The fabric may include one or more conductive strands. An insertion tool may be used to align an electrical component with the conductive strands during interlacing operations. A soldering tool may be used to remove insulation from the conductive strands to expose conductive segments on the conductive strands. The soldering tool may be used to solder the conductive segments to the electrical component. The solder connections may be located in grooves in the electrical component. An encapsulation tool may dispense encapsulation material in the grooves to encapsulate the solder connections. After the electrical component is electrically connected to the conductive strands, the insertion tool may position and release the electrical component in the gap. A component retention tool may temporarily be used to retain the electrical component in the gap as interlacing operations continue.Type: ApplicationFiled: November 8, 2023Publication date: February 29, 2024Inventors: Kyle L. Chatham, Kathryn P. Crews, Didio V. Gomes, Benjamin J. Grena, Storrs T. Hoen, Steven J. Keating, David M. Kindlon, Daniel A. Podhajny, Andrew L. Rosenberg, Daniel D. Sunshine, Lia M. Uesato, Joseph B. Walker, Felix Binder, Bertram Wendisch, Martin Latta, Ulrich Schläpfer, Franck Robin, Michael Baumann, Helen Wächter Fischer
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Patent number: 11913143Abstract: Interlacing equipment may be used to form fabric and to create a gap in the fabric. The fabric may include one or more conductive strands. An insertion tool may be used to align an electrical component with the conductive strands during interlacing operations. A soldering tool may be used to remove insulation from the conductive strands to expose conductive segments on the conductive strands. The soldering tool may be used to solder the conductive segments to the electrical component. The solder connections may be located in grooves in the electrical component. An encapsulation tool may dispense encapsulation material in the grooves to encapsulate the solder connections. After the electrical component is electrically connected to the conductive strands, the insertion tool may position and release the electrical component in the gap. A component retention tool may temporarily be used to retain the electrical component in the gap as interlacing operations continue.Type: GrantFiled: March 4, 2020Date of Patent: February 27, 2024Assignee: Apple Inc.Inventors: Kyle L Chatham, Kathryn P. Crews, Didio V. Gomes, Benjamin J. Grena, Storrs T. Hoen, Steven J. Keating, David M. Kindlon, Daniel A. Podhajny, Andrew L. Rosenberg, Daniel D. Sunshine, Lia M. Uesato, Joseph B. Walker, Felix Binder, Bertram Wendisch, Martin Latta, Ulrich Schläpfer, Franck Robin, Michael Baumann, Helen Wächter Fischer
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Publication number: 20230421945Abstract: A method performed by a first headset worn by a first user, the method includes the first headset performing noise cancellation on a microphone signal captured by a microphone of the first headset that is arranged to capture sounds within an ambient environment in which the first user is located. The first headset receives, from a second headset that is being worn by a second user who is in the ambient environment and over a wireless communication link, at least one sound characteristic generated by at least one sensor of the second headset and passing through select sounds from the microphone signal based on the received sound characteristic.Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Inventors: Prateek Murgai, Jonathan D. Sheaffer, David M. Fischer, John Woodruff, Tony S. Verma
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Patent number: 11213045Abstract: Systems and methods of producing a frozen food product include dosing ingredients with a liquefied gas while mixing the ingredients using self-cleaning interlocking beaters. The beaters are optionally also disposed to clean a container in which the ingredients are frozen. The rate and amount of cooling is controlled by measuring the quantity of liquid nitrogen, measuring viscosity of the frozen food product, measuring temperature, and/or the like.Type: GrantFiled: March 28, 2019Date of Patent: January 4, 2022Assignee: SMITTEN VENTURES, INC.Inventors: Robyn Sue Fisher, David M Fischer, Jonathan Fischer, Whitfield Fowler
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Patent number: 10244775Abstract: Systems and methods of producing a frozen food product include dosing ingredients with a liquefied gas while mixing the ingredients using self-cleaning interlocking beaters. The beaters are optionally also disposed to clean a container in which the ingredients are frozen. The rate and amount of cooling is controlled by measuring the quantity of liquid nitrogen, measuring viscosity of the frozen food product, measuring temperature, and/or the like.Type: GrantFiled: September 2, 2016Date of Patent: April 2, 2019Assignee: Smitten Ventures, Inc.Inventors: Robyn Sue Fisher, David M Fischer, Jonathan Fischer, Whitfield Fowler
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Patent number: 9433230Abstract: Systems and methods of producing a frozen food product include dosing ingredients with a liquefied gas while mixing the ingredients using self-cleaning interlocking beaters. The beaters are optionally also disposed to clean a container in which the ingredients are frozen. The rate and amount of cooling is controlled by measuring the quantity of liquid nitrogen, measuring viscosity of the frozen food product, measuring temperature, and/or the like.Type: GrantFiled: October 14, 2014Date of Patent: September 6, 2016Assignee: Smitten Ventures, Inc.Inventors: Robyn Sue Fisher, David M Fischer, Jonathan Fischer, Whitfield Fowler
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Patent number: 8857197Abstract: Systems and methods of producing a frozen food product include dosing ingredients with a liquefied gas while mixing the ingredients using self-cleaning interlocking beaters. The beaters are optionally also disposed to clean a container in which the ingredients are frozen. The rate and amount of cooling is controlled by measuring the quantity of liquid nitrogen, measuring viscosity of the frozen food product, measuring temperature, and/or the like.Type: GrantFiled: September 23, 2011Date of Patent: October 14, 2014Assignee: Smitten Ventures, Inc.Inventors: Robyn Sue Fisher, David M. Fischer
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Publication number: 20110091331Abstract: Pumping cartridges useful for medical and surgical pumping and infusion procedures are disclosed. Methods for manufacturing and utilizing such pumping cartridges and methods for pumping or infusing liquids for delivery to the body of a patient or a surgical or medical instrument for performing a medical treatment are also described. The invention includes, in one aspect, a series of pumping cartridges comprising cylinders and pistons constructed and arranged for sliding or reciprocating motion within the cylinders. The pistons and/or cylinders can comprise a sealing component including a circumferential, flared sealing flange and can be configured to enable the pumping cartridge to generate high liquid pumping pressures, for example above 1,000 psig. Many of the pumping cartridges disclosed can be relatively easily manufactured at a low cost per unit and can be configured to be detachable from a pump drive unit and disposable after a single use.Type: ApplicationFiled: May 17, 2010Publication date: April 21, 2011Applicant: HydroCision, Inc.Inventors: Timothy E. Moutafis, David M. Fischer
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Patent number: 7717685Abstract: Pumping cartridges useful for medical and surgical pumping and infusion procedures. In one aspect, a series of pumping cartridges include cylinders and pistons which have a sealing component including a circumferential, flared sealing flange and can be configured to enable the pumping cartridge to generate high liquid pumping pressures. Many of the pumping cartridges can be configured to be detachable from a pump drive unit and disposable after a single use. Some pistons include or at least partially form a valve and/or are relatively movable with respect to a connected piston rod. Valves include a valve seat and a movable sealing element able to create a seal capable of withstanding differences in fluid pressures thereacross of at least about 1,000 psi. The movable sealing element is concave in shape, and may be curved for improved sealing performance. Methods for pumping or infusing a liquid for delivery to the body of a patient or a surgical or medical instrument.Type: GrantFiled: January 9, 2004Date of Patent: May 18, 2010Assignee: HydroCision, Inc.Inventors: Timothy E. Moutafis, David M. Fischer
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Patent number: 7494468Abstract: An ultrasonic medical device comprises an ultrasonic vibration generator that generates vibration along its longitudinal axis. The ultrasonic vibration is transmitted through an ultrasonic coupler and a series of transformer sections that amplify the ultrasonic vibration. A flexible member is coupled to the distal end of the transformer sections, and is thus supplied with a longitudinal vibration at its base by the transformer sections. The flexible member is designed so that it converts the longitudinal vibration into a standing wave that runs along the length of the flexible member. The standing wave produces a series of nodes and anti-nodes along the length of the flexible member. Each of the anti-nodes produces cavitation in fluids in contact with the probe. The cavitation of the fluids causes destruction of adjacent tissue. In this manner, the entire length of the flexible member becomes a working surface that may be utilized for destroying tissue.Type: GrantFiled: February 21, 2003Date of Patent: February 24, 2009Assignee: OmniSonics Medical Technologies, Inc.Inventors: Robert A. Rabiner, Bradley A. Hare, David M. Fischer, Andy Levine
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Publication number: 20040234380Abstract: Pumping cartridges useful for medical and surgical pumping and infusion procedures are disclosed. Methods for manufacturing and utilizing such pumping cartridges and methods for pumping or infusing liquids for delivery to the body of a patient or a surgical or medical instrument for performing a medical treatment are also described. The invention includes, in one aspect, a series of pumping cartridges comprising cylinders and pistons constructed and arranged for sliding or reciprocating motion within the cylinders. The pistons and/or cylinders can comprise a sealing component including a circumferential, flared sealing flange and can be configured to enable the pumping cartridge to generate high liquid pumping pressures, for example above 1,000 psig. Many of the pumping cartridges disclosed can be relatively easily manufactured at a low cost per unit and can be configured to be detachable from a pump drive unit and disposable after a single use.Type: ApplicationFiled: January 9, 2004Publication date: November 25, 2004Inventors: Timothy E. Moutafis, David M. Fischer
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Publication number: 20030125645Abstract: An ultrasonic medical device comprises an ultrasonic vibration generator that generates vibration along its longitudinal axis. The ultrasonic vibration is transmitted through an ultrasonic coupler and a series of transformer sections that amplify the ultrasonic vibration. A flexible member is coupled to the distal end of the transformer sections, and is thus supplied with a longitudinal vibration at its base by the transformer sections. The flexible member is designed so that it converts the longitudinal vibration into a standing wave that runs along the length of the flexible member. The standing wave produces a series of nodes and anti-nodes along the length of the flexible member. Each of the anti-nodes produces cavitation in fluids in contact with the probe. The cavitation of the fluids causes destruction of adjacent tissue. In this manner, the entire length of the flexible member becomes a working surface that may be utilized for destroying tissue.Type: ApplicationFiled: February 21, 2003Publication date: July 3, 2003Applicant: OmniSonics Medical Technologies, Inc.Inventors: Robert A. Rabiner, Brad A. Hare, David M. Fischer, Andy Levine
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Patent number: 6551337Abstract: An ultrasonic medical device comprises an ultrasonic vibration generator that generates vibration along its longitudinal axis. The ultrasonic vibration is transmitted through an ultrasonic coupler and a series of transformer sections that amplify the ultrasonic vibration. A flexible member is coupled to the distal end of the transformer sections, and is thus supplied with a longitudinal vibration at its base by the transformer sections. The flexible member is designed so that it converts the longitudinal vibration into a standing wave that runs along the length of the flexible member. The standing wave produces a series of nodes and anti-nodes along the length of the flexible member. Each of the anti-nodes produces cavitation in fluids in contact with the probe. The cavitation of the fluids causes destruction of adjacent tissue. In this manner, the entire length of the flexible member becomes a working surface that may be utilized for destroying tissue.Type: GrantFiled: July 19, 2000Date of Patent: April 22, 2003Assignee: OmniSonics Medical Technologies, Inc.Inventors: Robert A. Rabiner, Brad A. Hare, David M. Fischer, Andy Levine
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Patent number: 6535795Abstract: The present invention provides a method for chemical addition utilizing adaptive process control optimizations having a combination of expert system(s), neural network(s) and genetic algorithm(s).Type: GrantFiled: August 9, 1999Date of Patent: March 18, 2003Assignee: Baker Hughes IncorporatedInventors: Myron E. Schroeder, Marilyn W. Blaschke, Michael J. Zetlmeisl, David M. Fischer, Kenneth J. Tacchi
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Publication number: 20020176788Abstract: Pumping cartridges useful for medical and surgical pumping and infusion procedures are disclosed. Methods for manufacturing and utilizing such pumping cartridges and methods for pumping or infusing liquids for delivery to the body of a patient or a surgical or medical instrument for performing a medical treatment are also described. The invention includes, in one aspect, a series of pumping cartridges comprising cylinders and pistons constructed and arranged for sliding or reciprocating motion within the cylinders. The pistons and/or cylinders can comprise a sealing component including a circumferential, flared sealing flange and can be configured to enable the pumping cartridge to generate high liquid pumping pressures, for example above 1,000 psig. Many of the pumping cartridges disclosed can be relatively easily manufactured at a low cost per unit and can be configured to be detachable from a pump drive unit and disposable after a single use.Type: ApplicationFiled: April 29, 2002Publication date: November 28, 2002Inventors: Timothy E. Moutafis, David M. Fischer
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Patent number: 4873471Abstract: An electronic frequency inverter circuit receives input electrical power at a lower frequency and energizes a load circuit including gaseous discharge lamps in a range of higher frequencies. First and second semiconductors are operated alternatively by a logic circuit in current mode control such that the switches operate at the high frequency range and the frequency of current in the load circuit varies as the magnitude of said source voltage varies. The load circuit has an impedance which varies with frequency such that the peak amplitude of the load current remains substantially constant despite variations in the magnitude of said source voltage to achieve a desirable crest factor for the lamp current. A high current limit circuit rapidly turns off the switches when excessively high current begins to flow through the switches. Low voltage is supplied in port from the high frequency current. Normal operation is ensured during start-up, for reduced line voltage and for a semiconductor chip embodiment.Type: GrantFiled: October 8, 1987Date of Patent: October 10, 1989Assignee: Thomas Industries Inc.Inventors: Thomas E. Dean, William H. Henrich, David M. Fischer, Lawrence J. Stratton, Herbert E. Pietsch
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Patent number: 4546379Abstract: Apparatus for use in sequential color imagery wherein three successive monochrome images are acquired by a video system and then displayed simultaneously upon a screen as a color picture. A flash lamp is used to sequentially illuminate a target through a color wheel and thus create three primary color separated images which are recorded in series by the video camera. The intensity of each image is controlled by varying the output of the lamp during each imaging sequence to balance the primary colors used to recreate an original target upon the television screen so that the video picture accurately duplicates the colors found in the original.Type: GrantFiled: April 21, 1983Date of Patent: October 8, 1985Assignee: Welch Allyn, Inc.Inventors: Joseph J. Sarofeen, David M. Fischer