Patents by Inventor Ronald E. Herman

Ronald E. Herman 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).

  • Solenoid vacuum control valve means and apparatus and system for controlling the air-fuel ratio supplied to a combustion engine
    Patent number: 4223651
    Abstract: A carbureting type fuel metering apparatus has an induction passage into which fuel is fed by several fuel metering systems among which are a main fuel metering system and an idle fuel metering system, as generally known in the art; engine exhaust gas analyzing means sensitive to selected constituents of such exhaust gas creates feedback signal means which through associated transducer means become effective for controllably modulating the metering characteristics of the main fuel metering system and the idle fuel metering system; reciprocating type solenoid control valve means is employed for modulating actuating pressure applied to the structure of the main fuel metering system and idle fuel metering system in order to achieve the desired metering functions.
    Type: Grant
    Filed: February 6, 1979
    Date of Patent: September 23, 1980
    Assignee: Colt Industries Operating Corp
    Inventors: Philip V. Eshelman, Ronald E. Herman
  • Apparatus and system for controlling the air-fuel ratio supplied to a combustion carburetor
    Patent number: 4128088
    Abstract: A carbureting type fuel metering apparatus has an induction passage into which fuel is fed by several fuel metering systems among which are a main fuel metering system and an idle fuel metering system, as generally known in the art; engine exhaust analyzing means sensitive to selected constituents of such exhaust gas creates feedback signal means which through associated transducer means become effective for controllably modulating the metering characteristics of the main fuel metering system and the idle fuel metering system.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: December 5, 1978
    Assignee: Colt Industries Operating Corp.
    Inventor: Ronald E. Herman
  • Variable venturi carburetor
    Patent number: 3937768
    Abstract: A carburetor for use in combination with an internal combustion engine has a body with an induction passage formed therethrough; a variable venturi within the induction passage is effective for variably determining the opening of a venturi throat defined thereby; and a throttle valve situated in the induction passage downstream of the variable venturi is operatively connected to the variable venturi for positioning the variable venturi generally in accordance with the position of the throttle valve.
    Type: Grant
    Filed: February 27, 1975
    Date of Patent: February 10, 1976
    Assignee: Colt Industries Operating Corporation
    Inventors: Kenneth C. Bier, Kalin S. Johnson, Ronald E. Herman