Alexander Churchward Patents

These are the patents gathered from the WWW that are assigned to Alexander Churchward (1872-1933)
Number Patent Name Inventor Date Filed Date issued Location
US0544844 Carbon brush holder for Dynamo Electric Machines Churchward, Alexander 5/14/1891 8/20/1895 Brooklyn, New York
US0593716 Alternating Current Motor Churchward, Alexander 7/1/1896 11/16/1897 Brooklyn, New York
US0687991 Dynamo Frame Churchward, Alexander 6/12/1899 12/3/1901 Chicago, Illinois
US0687992 Dynamo Electric Machinery Churchward, Alexander 12/18/1899 12/3/1901 Chicago, Illinois
US0707389 Synchronous Alternating Current Motor Churchward, Alexander 10/1/1898 8/19/1902 Fort Wayne, Indiana
US0707390 Synchronous Alternating Current Motor Churchward, Alexander 01/11/1899 8/19/1902 Fort Wayne, Indiana
US0708025 Rotary Transformer Churchward, Alexander 6/19/1899 9/2/1902 Chicago, Illinois
US0710425 Frame for dynamo-electric machines Churchward, Alexander 9/12/1896 10/7/1902 Brooklyn, New York
US0713603 Dynamo Electric Machine Churchward, Alexander 1/2/1900 11/18/1902 Chicago, Illinois
US0713604 Dynamo Electric Machine Churchward, Alexander 1/2/1900 11/18/1902 Chicago, Illinois
US0713605 Transformer Churchward, Alexander 11/13/1899 11/18/1902 Chicago, Illinois
US0723989 Pole shoe for dynamo electric machine Churchward, Alexander 8/23/1901 3/31/1903 Chicago, Illinois
US0730343 Alternating current motor Churchward, Alexander 3/29/1897 6/9/1903 Brooklyn, New York
US0732171 Brush holder Churchward, Alexander 11/13/1899 6/30/1903 Chicago, Illinois
US0745325 Alternating Current Motor Churchward, Alexander 3/29/1897 12/1/1903 Brooklyn, New York
US0745326 Alternating Current Motor Churchward, Alexander 3/29/1897 12/1/1903 Brooklyn, New York
US0745327 Anti hunting device Churchward, Alexander 6/19/1902 12/1/1903 New York, New York
US0745957 Alternating Current Motor Churchward, Alexander 4/27/1903 12/1/1903 New York, New York
US0766991 Propelling railway-oars by synchronous electrical motor Churchward, Alexander 10/12/1902 8/9/1904 New York, New York
US0771533 Electric Railway Churchward, Alexander 2/20/1903 10/4/1904 New York, New York
US0778222 Automatic current regulator for electric motors Churchward, Alexander 7/16/1903 12/27/1904 New York, New York
US0791440 Method of operating alternating current motors Churchward, Alexander 10/31/1903 5/30/1905 New York, New York
US0796702 Pole piece Churchward, Alexander 10/26/1902 8/8/1905 New York, New York
US0805263 Time limit device for controllers Churchward, Alexander 10/10/1903 11/21/1905 New York, New York
US0812726 Locking device for automobiles Churchward, Alexander 6/30/1904 2/13/1906 New York, New York
US0835401 Protective device for automobile motors Churchward, Alexander 6/12/1905 11/6/1906 Schenectady, New York
US0849051 Power Transmission Device Churchward, Alexander 9/6/1902 4/2/1907 Pelliani, New York
US0907738 Pole-piece for dynamo-electric machines Churchward, Alexander 8/23/1901 12/28/1908 Chicago, Illinois
US0996975 Rectifier system Churchward, Alexander 10/14/1907 7/4/1911 New York, New York
US1003431 Systems of Motor Control Churchward, Alexander 4/9/1909 9/19/1911 New York, New York
US1091632 System of Vehicle Propulsion Churchward, Alexander 3/10/1910 3/31/1914 New York, New York
US1094778 Vapor electric apparatus Churchward, Alexander 1/18/1904 4/28/1914 New York, New York
US1152878 Electric lighting and battery charge system for vehicles Churchward, Alexander 1/2/1914 9/7/1915 Boston, Massachusetts
US1153372 Power transmission means for operating dynamos Churchward, Alexander 1/2/1914 9/14/1915 Boston, Massachusetts
US1247793 Starting and generating system for automobiles Churchward, Alexander 10/1/1915 11/27/1917 Boston, Massachusetts
US1287883 Power transmission Churchward, Alexander   12/17/1918 Boston, Massachusetts
US1350703 Starting mechanism for internal-combustion engines Churchward, Alexander 5/28/1919 8/24/1920 New York, New York
US1355124 Electric-welding method and apparatus Churchward, Alexander 2/18/1920 10/12/1920 New York, New York
US1370286 Electrical welding apparatus Churchward, Alexander 6/24/1919 3/1/1921 New York, New York
US1397361 Pressure variable resistance Churchward, Alexander 5/7/1920 11/15/1921 New York, New York
US1403231 Electrical connection Churchward, Alexander 6/19/1920 1/10/1922 New York, New York
US1413390 Pressure variable resistance Churchward, Alexander 6/24/1919 4/18/1922 New York, New York
US1416449 Electric-arc welding Churchward, Alexander 2/18/1920 5/16/1922 New York, New York
US1435914 Electrical welding apparatus Churchward, Alexander 3/19/1919 11/21/1922 New York, New York
US1436152 Electrical-energy-translating apparatus Churchward, Alexander 4/28/1919 11/21/1922 New York, New York
US1552418 Electrical welding method and apparatus Churchward, Alexander 4/22/1919 9/8/1925 New York, New York
US1664022 Electric welding apparatus Churchward, Alexander 2/17/1927 3/27/1928 New York, New York
US1667244 Electric-welding apparatus Churchward, Alexander 11/8/1926 4/24/1928 New York, New York
US1720664 Electric welding apparatus Churchward, Alexander 11/8/1926 7/16/1929 New York, New York
US1853039 Uni-control tuning apparatus Churchward, Alexander 10/9/1925 4/12/1932 New York, New York
US1862922 Welding generator Churchward, Alexander 1/8/1930 6/14/1932 New York, New York
US1863833 Welding apparatus Churchward, Alexander 4/17/1930 6/21/1932 New York, New York
US1882063 Welding apparatus Churchward, Alexander 4/17/1930 10/11/1932 New York, New York
US1887496 Welding apparatus Churchward, Alexander 4/17/1930 11/15/1932 New York, New York
US1910825 Welding generator Churchward, Alexander 2/7/1930 5/23/1933 South Orange, New Jersey
US1961197 Welding apparatus Churchward, Alexander 8/19/1932 6/5/1934 South Orange, New Jersey


Last Updated on 3/6/03
By Jack Churchward