Patents by Inventor Leonard Davidson

Leonard Davidson 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: 9438129
    Abstract: Input/output power and signal transfer and power and signal isolator device using pulsed, alternating or high frequency signal current having a capacitive structure which provides power and signal limiting control, unidirectional power and signal transfer and input/output decoupling and transceiver-receiver isolation barrier. The device includes at least two decoupled input electrodes arranged in parallel to each other, and at least two decoupled output electrodes arranged in parallel to each other. Each electrode is connected to at least one terminal. Each electrode has a surface that which is opposed to another electrode surface with at least one layer of dielectric material therebetween. The input electrodes are decoupled from the output electrodes by dielectric material and are disposed such that two output electrodes are separately disposed external to the two input electrodes.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 6, 2016
    Inventors: Cesar Ladron de Guevara, Leonard Davidson
  • Publication number: 20140034559
    Abstract: The present invention relates to a means of monitoring and controlling a process step, or steps for a treatable fluid being processed, whereby a sampled volume of the treated fluid is delivered to a vessel, within which the sampled treated fluid emulates the expected reaction or reactions of the treatable fluid being processed within the process step. The sampled volume of the treated fluid is detained, monitored, recorded and analyzed by the present invention. The resulting data is translated into commands that are conveyed to process control devices which control the processing of the treatable fluid. Sampling and analyzing of the treatable fluid is automatically repeated on a cyclical basis.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 6, 2014
    Inventors: Cesar Ladron de Guevara, Leonard Davidson
  • Patent number: 8580121
    Abstract: The present invention relates to a means of monitoring and controlling a process step, or steps for a treatable fluid being processed, whereby a sampled volume of the treated fluid is delivered to a vessel, within which the sampled treated fluid emulates the expected reaction or reactions of the treatable fluid being processed within the process step. The sampled volume of the treated fluid is detained, monitored, recorded and analyzed by the present invention. The resulting data is translated into commands that are conveyed to process control devices which control the processing of the treatable fluid. Sampling and analyzing of the treatable fluid is automatically repeated on a cyclical basis.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: November 12, 2013
    Inventors: Cesar Ladron de Guevara, Leonard Davidson
  • Publication number: 20130088092
    Abstract: Input/output power and signal transfer and power and signal isolator device using pulsed, alternating or high frequency signal current having a capacitive structure which provides power and signal limiting control, unidirectional power and signal transfer and input/output decoupling and transceiver-receiver isolation barrier. The device includes at least two decoupled input electrodes arranged in parallel to each other, and at least two decoupled output electrodes arranged in parallel to each other. Each electrode is connected to at least one terminal. Each electrode has a surface that which is opposed to another electrode surface with at least one layer of dielectric material therebetween. The input electrodes are decoupled from the output electrodes by dielectric material and are disposed such that two output electrodes are separately disposed external to the two input electrodes.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 11, 2013
    Inventors: Cesar Ladron de Guevara, Leonard Davidson
  • Publication number: 20110155255
    Abstract: The present invention relates to a means of monitoring and controlling a process step, or steps for a treatable fluid being processed, whereby a sampled volume of the treated fluid is delivered to a vessel, within which the sampled treated fluid emulates the expected reaction or reactions of the treatable fluid being processed within the process step. The sampled volume of the treated fluid is detained, monitored, recorded and analyzed by the present invention. The resulting data is translated into commands that are conveyed to process control devices which control the processing of the treatable fluid. Sampling and analyzing of the treatable fluid is automatically repeated on a cyclical basis.
    Type: Application
    Filed: December 31, 2009
    Publication date: June 30, 2011
    Inventors: Cesar Ladron de Guevara, Leonard Davidson
  • Publication number: 20040007523
    Abstract: A wastewater treatment process that provides improved reduction of total solids through endogenous respiration while reducing biochemical oxygen demand and utilizing biological, nutrient reduction. The wastewater treatment process uses an efficient aeration delivery system to drastically reduce the time needed to oxidize organic matter, and recirculates, shreds, and homogenizes the organic matter and microorganisms and oxygenates the entire mass many more times than traditional systems resulting in a greater biological solids digestion rate.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 15, 2004
    Applicant: PREMIER WASTEWATER INTERNATIONAL, LLC
    Inventors: Paul G. Gabon, Leonard Davidson, H. Matthew Russell, Martin Perry Johnson
  • Patent number: 6605220
    Abstract: A wastewater treatment process that provides improved reduction of total solids through endogenous respiration while reducing biochemical oxygen demand and utilizing biological nutrient reduction. The wastewater treatment process uses an efficient aeration delivery system to drastically reduce the time needed to oxidize organic matter, and recirculates, shreds and homogenizes the organic matter and microorganisms and oxygenates the entire mass many more times than traditional systems resulting in a greater biological solids digestion rate.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: August 12, 2003
    Assignee: Premier Wastewater International, Inc.
    Inventors: Paul G. Garcia, Leonard Davidson, H. Matthew Russell, Martin Perry Johnson, Paul F. Garcia
  • Patent number: 6555002
    Abstract: A wastewater treatment process that provides improved reduction of total solids through endogenous respiration while reducing biochemical oxygen demand and utilizing biological nutrient reduction. The wastewater treatment process uses an efficient aeration delivery system to drastically reduce the time needed to oxidize organic matter, and re-circulates, shreds and homogenizes the organic matter and microorganisms and oxygenates the entire mass many more times than traditional systems resulting in a greater biological solids digestion rate.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: April 29, 2003
    Assignee: Premier Wastwater International, LLC
    Inventors: Paul G. Garcia, Leonard Davidson, H. Matthew Russell, Martin Perry Johnson, Paul F. Garcia
  • Publication number: 20030066799
    Abstract: A wastewater treatment process that provides improved reduction of total solids through endogenous respiration while reducing biochemical oxygen demand and utilizing biological nutrient reduction. The wastewater treatment process uses an efficient aeration delivery system to drastically reduce the time needed to oxidize organic matter, and recirculates, shreds and homogenizes the organic matter and microorganisms and oxygenates the entire mass many more times than traditional systems resulting in a greater biological solids digestion rate.
    Type: Application
    Filed: November 8, 2002
    Publication date: April 10, 2003
    Applicant: PREMIER WASTEWATER INTERNATIONAL, LLC
    Inventors: Paul G. Garcia, Leonard Davidson, H. Matthew Russell, Martin Perry Johnson, Paul F. Garcia
  • Publication number: 20020040871
    Abstract: A wastewater treatment process that provides improved reduction of total solids through endogenous respiration while reducing biochemical oxygen demand and utilizing biological nutrient reduction. The wastewater treatment process uses an efficient aeration delivery system to drastically reduce the time needed to oxidize organic matter, and re-circulates, shreds and homogenizes the organic matter and microorganisms and oxygenates the entire mass many more times than traditional systems resulting in a greater biological solids digestion rate.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 11, 2002
    Applicant: PREMIER WASTEWATER INTERNATIONAL, LLC.
    Inventors: Paul G. Garcia, Leonard Davidson, H. Matthew Russell, Martin Perry Johnson, Paul F. Garcia
  • Patent number: 5615123
    Abstract: A method of and apparatus for creating and producing printed card products such as greeting cards for various applications, whereby a customer can select a card product for a desired application and customize or personalize certain portions of the selected card product. A terminal area or kiosk is provided at which the customer selects from a monitor screen display one of a number of different general applications for which he/she wants to obtain a card product. Upon entry of the selection via, e.g., a transparent touch-sensitive plate on the monitor screen, one or more pre-stored groups of card product design formats pertaining to the selected general application are determined, and further inquiries are made via the monitor screen to elicit certain information relating to a specific use or application for the desired card product.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: March 25, 1997
    Assignee: CreataCard, Inc.
    Inventors: Leonard Davidson, Matt Russell, Scott Allred, Michael S. Russell
  • Patent number: H1708
    Abstract: A method of and apparatus for creating and vending printed card products such as greeting cards is disclosed, whereby a customer can select a card product for a desired application and customize or personalize certain portions of the selected card product. A terminal area or kiosk is provided at which the customer selects from a monitor screen display one of a number of different selection criterion for which he/she wants to obtain a card product. There may be multiple levels of selection criteria. Upon entry of the selection via, e.g., a transparent touch-sensitive plate on the monitor screen, one or more pre-stored groups of card product design formats pertaining to the selected selection criterion are determined, and the customer is prompted to select a particular card format to customize. The card product designs may include separate graphics, text and spaces for insertion of customized user messages, and these elements may be stored in a compressed format.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: February 3, 1998
    Assignee: CreataCard, Inc.
    Inventors: Leonard Davidson, H. Matthew Russell, Michael S. Russell, Scott K. Allred