Patents by Inventor John F. Walko

John F. Walko 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).

  • Soot separator for an internal combustion engine
    Patent number: 10436090
    Abstract: A soot separator utilizing a toroid portion to centrifugally separate soot particles from the exhaust gas of an internal combustion engine. Upon lesser or no flow of exhaust gas, gravity causes the retained particles to fall within the bottom of the separator. The soot separator further includes a baffle to deflect particles and further enhance soot removal. A method utilizing this soot separator and association with an internal combustion engine are also described herein.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: October 8, 2019
    Assignee: Clean Diesel Development LLC
    Inventor: John F. Walko, III
  • SOOT SEPARATOR FOR AN INTERNAL COMBUSTION ENGINE
    Publication number: 20180274414
    Abstract: A soot separator utilizing a toroid portion to centrifugally separate soot particles from the exhaust gas of an internal combustion engine. Upon lesser or no flow of exhaust gas, gravity causes the retained particles to fall within the bottom of the separator. The soot separator further includes a baffle to deflect particles and further enhance soot removal. A method utilizing this soot separator and association with an internal combustion engine are also described herein.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 27, 2018
    Inventor: John F. Walko, III
  • Stable blends of cationic water-in-oil emulsion polymers and cationic aqueous solution polymers
    Patent number: 5169540
    Abstract: Novel, stable blends of cationic water-in-oil emulsion polymers with cationic polymers in aqueous solution are preparable through the use of stabilizing solvents and surfactants.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: December 8, 1992
    Assignee: Betz Laboratories, Inc.
    Inventors: Bruce K. Fillipo, John F. Walko, David I. Devore
  • Excavation system with pneumatic conveyance and separation of excavated material
    Patent number: 5120165
    Abstract: An Excavation System is disclosed in which fragmented excavated material is entrained in a gas and pneumatically conveyed to a desirably remote site for separation of such material from such gas. Energy is supplied to a motor to operate a gas pump to induce high velocity gas flow through a long vacuum conduit. At a vacuum intake end such flow entrains such material and conveys such material into and through such conduit to one or more separators communicating serially with the flow path for separating and collecting the excavant, then such gas is discharged into the atmosphere. At least one separator includes a high-efficiency cyclone chamber for maintaining a gas vortex for high-efficiency centrifugal separation with minimal flow-resistance.
    Type: Grant
    Filed: May 3, 1990
    Date of Patent: June 9, 1992
    Inventor: John F. Walko, Jr.
  • Stable blends of cationic water-in-oil emulsion polymers and cationic aqueous solution polymers
    Patent number: 5100951
    Abstract: Novel, stable blends of cationic water-in-oil emulsion polymers with cationic polymers in aqueous solution are preparable through the use of stabilizing solvents and surfactants.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: March 31, 1992
    Assignee: Betz Laboratories, Inc.
    Inventors: Bruce K. Fillipo, John F. Walko, David I. Devore
  • Centrifugal separator
    Patent number: D870775
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: December 24, 2019
    Assignee: Clean Diesel Development LLC
    Inventor: John F. Walko, III