Index of black inventors by state or country of residence 1834-2008



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MN


Joseph A. Gamell June 2, 1992 5,118,961 Turbine generator

Robert Hearns Feb. 15, 1898 598,929 Sealing Attachment for Bottles

Robert Hearns July 4, 1899 628,003 Detachable Car Fender

Robert Hearns Nov. 3, 1903 742,985 Non-Refillable Bottle

Frederick M. Jones June 27, 1939 2,163,754 Ticket Dispensing Machine

Frederick M. Jones Dec. 1, 1942 2,303,857 Air Conditioner for vehicles

Frederick M. Jones Dec. 14, 1943 2,336,735 Removable Cooling Unit for Compartments

Frederick M. Jones Dec. 21, 1943 2,337,164 Means for Automatically Starting and Stopping Gas Engines

Frederick M. Jones May 29, 1945 2,376,968 Two Cycle-Gas Engine

Frederick M. Jones Mar. 11, 1947 2,417,253 Two Cycle Gas Engine

Frederick M. Jones May 31, 1949 2,471,692 Means for Preventing Frosting of Evaporator Heat Exchangers

Frederick M. Jones July 12, 1949 2,475,841 Air Conditioning Unit



Frederick M. Jones July 12, 1949 2,475,842 Starter Generator

Frederick M. Jones July 12, 1949 2,475,843 Means Operated by a Starter Generator for Cooling Gas Engine

Frederick M. Jones July 26, 1949 2,477,377 Means for Thermostatically Operating Gas Engine

Frederick M. Jones April 18, 1950 2,504,841 Rotary Compressor

Frederick M. Jones May 23, 1950 2,509,099 System for Controlling the Operation of Refrigeration Units

Frederick M. Jones Oct. 24, 1950 2,526,874 Apparatus for Heating or Cooling the Atmosphere Within an Enclosure

Frederick M. Jones Nov. 28, 1950 2,532,273 Two Cycle Internal Combustion Engine

Frederick M. Jones Dec. 26, 1950 2,535,682 Prefabricat-ed Refrigerator Construction

Frederick M. Jones Jan. 8, 1952 2,581,956 Refrigerat-ion Device

Frederick M. Jones Aug. 4, 1953 2,647,287 Locking Mechanism

Frederick M. Jones Jan. 19, 1954 2,666,298 Method and Means for Defrosting a Cold Diffuser

Frederick M. Jones Dec. 7, 1954 2,696,086 Method and Means for Air Conditioning

Frederick M. Jones Feb. 12, 1957 2,780,923 Method and Means for Preserving Perishable Foodstuffs in Transit

Frederick M. Jones Sep. 2, 1958 2,850,001 Control Device for Internal Combustion Engine

Frederick M. Jones Feb. 23, 1960 2,926,005 Thermostat and Temperature Control System

Alexander Miles Dec. 11, 1883 289,922 Hair Tonic

Alexander Miles Oct. 11, 1887 371,207 Elevator

Humphrey H. Reynolds Apr. 3, 1883 275,271 Window Ventilator for Railway Cars

James H. Robinson Mar. 14, 1899 621,143 Life Saving Guard for Locomotives

James H. Robinson Apr. 25, 1899 623,929 Life Saving Guard for Street Cars

Raymond E. Rose Nov. 9, 1971 3,618,388 Control Apparatus

Robert D. Younger July 20, 1976 3,970,925 Direct Reading Reactance Meter




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