Patents by Inventor Dwight D. Back

Dwight D. Back 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: 11589978
    Abstract: This invention provides a method for determining breast implant geometric properties, engineering stresses, engineering strains and engineering moduli; directly and quickly, using a load frame apparatus. More generally the invention provides a method for determining geometric properties and engineering mechanical properties of any elastomeric device, using a load frame apparatus. Engineering stress and engineering strain properties of breast implants are critical to their safety and durability. The geometric properties of breast implants undergoing compression also relates to the shape stability of breast implants, which may also be related to clinical outcomes such as capsular contracture and other untoward outcomes involving a breast capsule, such as Anaplastic Large Cell Lymphoma (ALCL), double capsule formation, seroma formation and associated breast implant illness (BII).
    Type: Grant
    Filed: May 2, 2020
    Date of Patent: February 28, 2023
    Inventors: Harold J. Brandon, Dwight D. Back
  • Publication number: 20200345477
    Abstract: This invention provides a method for determining breast implant geometric properties, engineering stresses, engineering strains and engineering moduli; directly and quickly, using a load frame apparatus. More generally the invention provides a method for determining geometric properties and engineering mechanical properties of any elastomeric device, using a load frame apparatus. Engineering stress and engineering strain properties of breast implants are critical to their safety and durability. The geometric properties of breast implants undergoing compression also relates to the shape stability of breast implants, which may also be related to clinical outcomes such as capsular contracture and other untoward outcomes involving a breast capsule, such as Anaplastic Large Cell Lymphoma (ALCL), double capsule formation, seroma formation and associated breast implant illness (BII).
    Type: Application
    Filed: May 2, 2020
    Publication date: November 5, 2020
    Inventors: Harold J. Brandon, Dwight D. Back
  • Patent number: 8556968
    Abstract: A fluid-filled surgically-implantable prosthetic device encloses one or more non-enclosing fitted shells arranged adjacent to and in a graduated relation to each other. The invention relates specifically to implantable breast prostheses with a low coefficient of friction between two or more interacting elastomeric shells in an aqueous fluid environment, without the addition of a lubricating agent to the fluid.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: October 15, 2013
    Assignee: Ideal Implant Incorporated
    Inventors: Robert S. Hamas, Dwight D. Back, Kevin Yacoub
  • Publication number: 20130116784
    Abstract: A fluid-filled surgically-implantable prosthetic device encloses one or more non-enclosing fitted shells arranged adjacent to and in a graduated relation to each other. The invention relates specifically to implantable breast prostheses with a low coefficient of friction between two or more interacting elastomeric shells in an aqueous fluid environment, without the addition of a lubricating agent to the fluid.
    Type: Application
    Filed: November 9, 2011
    Publication date: May 9, 2013
    Applicant: IDEAL IMPLANT INCORPORATED
    Inventors: Robert S. Hamas, Dwight D. Back
  • Patent number: 8418530
    Abstract: Compositions and related methods for detecting leaks in HVAC/R components such as furnaces, portable gas heaters, swimming pool heaters, air conditioners, heat pumps, refrigerators, freezers, and other closed loop vapor compression systems, as well as heat exchangers. These compositions provide more sensitive detection of leaks in inaccessible areas of furnaces using low ODP and non-flammable compounds classified as hydrofluorochloro-ethers (HFCE's), hydrobromochlorofluoro-alkenes (HBCFA's) hydrofluoro-ethers (HFE's), and halogenated compounds which are either alkanes, alcohols, diones, acetates, ketones (e.g., butanones, pentanones), esters (e.g., propanoates), anhydrides, cycloalkanes (cycloparaffins), cycloalkenes (cycloolefins), heterocyclics (e.g., furans), and aromatics.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: April 16, 2013
    Assignee: Mainstream Engineering Corporation
    Inventors: Robert P. Scaringe, Dwight D. Back, Lawrence R. Grzyll, John A. Meyer
  • Patent number: 8062528
    Abstract: A method and components for heating and hydrating foods and beverages using an exothermic and pressure generating chemical reaction are described. The exothermic reaction can be initiated by water, spark, electrical impulse, squib, friction, or shock to heat non-potable water and force the water through a membrane filter, thereby producing heated, potable water.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: November 22, 2011
    Assignee: Mainstream Engineering Corp.
    Inventors: Dwight D. Back, Lawrence R. Grzyll, Deborah Stewart, legal representative, Robert P. Scaringe, R. Paul Roth
  • Patent number: 7998916
    Abstract: CFC replacement solvent compositions, methods of using the same and methods of making the same. These compositions meet or exceed the solvency, flammability, and compatibility requirements for CFC's while providing similar or improved environmental and toxicological properties. These solvent compositions have applications including, but not limited to, oxygen handling, refrigeration or heat pumps, electronics, implantable prosthetic devices, and optical equipment.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: August 16, 2011
    Assignee: Mainstream Engineering Corporation
    Inventors: Lawrence R. Grzyll, John A. Meyer, Dwight D. Back
  • Patent number: 7960331
    Abstract: CFC replacement solvent compositions, methods of using the same and methods of making the same. These compositions meet or exceed the solvency, flammability, and compatibility requirements for CFC's while providing similar or improved environmental and toxicological properties. These solvent compositions have applications including, but not limited to, oxygen handling, refrigeration or heat pumps, electronics, implantable prosthetic devices, and optical equipment.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: June 14, 2011
    Inventors: Lawrence R. Grzyll, John A. Meyer, Dwight D. Back
  • Patent number: 7846332
    Abstract: A method and components for heating and hydrating foods and beverages using an exothermic and pressure generating chemical reaction are described. The exothermic reaction can be initiated by water, spark, electrical impulse, squib, friction, or shock to heat non-potable water and force the water through a membrane filter, thereby producing heated, potable water.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: December 7, 2010
    Assignee: Mainstream Engineering Corporation
    Inventors: Dwight D. Back, Lawrence R. Grzyll, Deborah Stewart, legal representative, Robert P. Scaringe, R. Paul Roth
  • Publication number: 20100300969
    Abstract: A method and components for heating and hydrating foods and beverages using an exothermic and pressure generating chemical reaction are described. The exothermic reaction can be initiated by water, spark, electrical impulse, squib, friction, or shock to heat non-potable water and force the water through a membrane filter, thereby producing heated, potable water.
    Type: Application
    Filed: August 11, 2010
    Publication date: December 2, 2010
    Applicant: MAINSTREAM ENGINEERING CORP.
    Inventors: Dwight D. Back, Lawrence R. Grzyll, Deborah Stewart, Robert P. Scaringe, R. Paul Roth
  • Publication number: 20090026418
    Abstract: CFC replacement solvent compositions, methods of using the same and methods of making the same. These compositions meet or exceed the solvency, flammability, and compatibility requirements for CFC's while providing similar or improved environmental and toxicological properties. These solvent compositions have applications including, but not limited to, oxygen handling, refrigeration or heat pumps, electronics, implantable prosthetic devices, and optical equipment.
    Type: Application
    Filed: August 15, 2008
    Publication date: January 29, 2009
    Applicant: MAINSTREAM ENGINEERING CORP.
    Inventors: Lawrence R. GRZYLL, John A. Meyer, Dwight D. Back
  • Publication number: 20090005282
    Abstract: CFC replacement solvent compositions, methods of using the same and methods of making the same. These compositions meet or exceed the solvency, flammability, and compatibility requirements for CFC's while providing similar or improved environmental and toxicological properties. These solvent compositions have applications including, but not limited to, oxygen handling, refrigeration or heat pumps, electronics, implantable prosthetic devices, and optical equipment.
    Type: Application
    Filed: August 15, 2008
    Publication date: January 1, 2009
    Applicant: MAINSTREAM ENGINEERING CORP.
    Inventors: Lawrence R. Grzyll, John A. Meyer, Dwight D. Back
  • Patent number: 7429557
    Abstract: CFC replacement solvent compositions, methods of using the same and methods of making the same. These compositions meet or exceed the solvency, flammability, and compatibility requirements for CFC's while providing similar or improved environmental and toxicological properties. These solvent compositions have application including, but not limited to, oxygen handling, refrigeration or heat pumps, electronics, implantable prosthetic devices, and optical equipment.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: September 30, 2008
    Assignee: Mainstream Engineering Corporation
    Inventors: Lawrence R. Grzyll, John A. Meyer, Dwight D. Back
  • Patent number: 6638431
    Abstract: A formulation and method to treat and control microbial growth present in the water of climate control systems such as air conditioner air handlers, dehumidifiers, and humidifiers, which formulation can be entrained and dispersed into to living space air. Specifically, a formulation is provided in the form of a tablet or a spray for being applied onto a wetted surface element present in these systems which will effectively control the growth of microbes such as fungus, molds, bacteria, and virus present on the surface for an extended period of time. The formulations include at least two metals, at least two chelating agents, at least one surfactant, and at least one viscosity enhancing compound.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: October 28, 2003
    Assignee: Mainstream Engineering Corporation
    Inventors: Dwight D. Back, Robert P. Scaringe, John A. Meyer
  • Patent number: 6576473
    Abstract: A field-installable and removable moisture and/or acid test kit and method is used for a vapor compression system. A moisture and/or acid indicator is provided in the test kit which is installed at a single point location upstream or downstream of the system compressor in a region where the system working fluid is in a substantially vapor phase. The test kit can be connected to the system by a threaded connection or a quick disconnect fitting. The moisture/acid indicator in the test kit detects the presence of moisture and/or acid by a diffusion of moisture or acid to the indicator via diffusion. Some magnification is provided in the test kit because the lower transport rates from the vapor diffusion mechanism requires a smaller mass of indicator material than has been used in conventional flowing liquid systems.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: June 10, 2003
    Assignee: Mainstream Engineering Corporation
    Inventors: Robert P. Scaringe, Lawrence R. Grzyll, Dwight D. Back, John A. Meyer, Gregory S. Cole
  • Publication number: 20020162800
    Abstract: A formulation and method to treat and control microbial growth present in the water of climate control systems such as air conditioner air handlers, dehumidifiers, and humidifiers, which formulation can be entrained and dispersed into to living space air. Specifically, a formulation is provided in the form of a tablet or a spray for being applied onto a wetted surface element present in these systems which will effectively control the growth of microbes such as fungus, molds, bacteria, and virus present on the surface for an extended period of time. The formulations include at least two metals, at least two chelating agents, at least one surfactant, and at least one viscosity enhancing compound.
    Type: Application
    Filed: May 3, 2001
    Publication date: November 7, 2002
    Inventors: Dwight D. Back, Robert P. Scaringe, John A. Meyer
  • Patent number: 6429561
    Abstract: A method for controlling magnetic bearings is disclosed. More specifically, this method moves the rotor position setpoint away from the center point between two opposing bearings and closer to one of the bearings. Assuming the force on the rotor is unidirectional, the bearings will be more stable and will be able to exert more force on the rotor. The bearings require less current, thereby allowing for the reduction of the winding size, and the power consumption of the bearing is decreased. The movement of the shaft in one direction or the other necessitates adaptive control, or the alteration of the dynamic control algorithm to maintain optimal performance by accounting for different system stability requirements.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: August 6, 2002
    Assignee: Mainstream Engineering Corporation
    Inventors: Russell W. Davis, Dwight D. Back, Gregory S. Cole, John Hung
  • Publication number: 20020007663
    Abstract: Leaks are detected in a vapor compression system using fluorescent and daylight visible in situants which are introduced to a system by way of a carrier and dissolved into the systems oil or lubricant. This invention teaches the use of POE oil as a universal carrier fluid, alone or in combination with an alcohol, and combined with one or more “in situants”. The in situants are compounds which are the same or substantially similar to compounds already present in oils or lubricants. An on-off UV light source, such as a xenon light, can the be used to visually detect the leak from the vapor compression system components.
    Type: Application
    Filed: August 15, 2001
    Publication date: January 24, 2002
    Applicant: Mainstream Engineering Corporation
    Inventors: Robert Peter Scaringe, Lawrence R. Grzyll, Dwight D. Back, Joseph Mayer, John A. Meyer
  • Patent number: 6327731
    Abstract: A compact, portable clothes washer and dryer system requires no direct water connection or drain line and includes a feed reservoir for holding hot or cold water; a basket for receiving clothes and said water from said feed reservoir; a filtration membrane unit that generates permeate for rinsing said clothes and retentate; a motor for operating said basket; a pump for circulating water from said feed reservoir through said membrane unit and to said basket; and a heating assembly for drying said clothes in said basket. The system reduces water usage and gray water generation for washing clothes. The system is particularly useful in dormitories, small apartments, or other remote dwellings where water is scarce or where there are no water feed lines or drains.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: December 11, 2001
    Assignee: Mainstream Engineering Corporation
    Inventors: Dwight D. Back, Robert P. Scaringe, Gregory S. Cole
  • Patent number: 6327897
    Abstract: Leaks are detected in a vapor compression system using fluorescent and daylight visible in situants which are introduced to a system by way of a carrier and dissolved into the systems oil or lubricant. This invention teaches the use of POE oil as a universal carrier fluid, alone or in combination with an alcohol, and combined with one or more “in situants”. The in situants are compounds which are the same or substantially similar to compounds already present in oils or lubricants. An on-off UV light source, such as a xenon light, can the be used to visually detect the leak from the vapor compression system components.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: December 11, 2001
    Assignee: Mainstream Engineering Corporation
    Inventors: Robert Peter Scaringe, Lawrence R. Grzyll, Dwight D. Back, Joseph Mayer, John A. Meyer