Home » History of Concrete Pumping » Home » United States Patents

United States Patents

Apr 9, 1913 0. A. CORNELL & S. E. MoKEE. CONORETE PUMP

Aug 19, 1931 Charles F. Ball

Jan. 16 1933 J.C. Kooyman

Jan. 16 1933 J.C. Kooyman

April 5. 1933 Charles F. Ball

May 26. 1933 Charles F. Ball

Sept 8. 1933 Charles F. Ball

Oct 20. 1933 Charles F. Ball

Nov. 18. 1933 Charles F. Ball

June 2. 1934 H.S. Murray

Aug 17. 1934 Charles F. Ball

Aug 21. 1934 E.S. Karstens

June 14. 1935 W. Siebert

Oct 12. 1935 Charles F. Ball

April 10. 1936 Charles F. Ball

May 8. 1936 Charles F. Ball

July 7. 1937 Louis G. Hilkemeier

April 2. 1938 Otto Kaiser Germany

July 26. 1939 Charles F. Ball

March 23. 1940 J.E. Conacher

Dec 27. 1940 Charles F. Ball

May 21. 1942 Charles I. Longenecker

April 5. 1944 W.J. Hoenecke

July 12. 1945 Charles I. Longenecker

Dec 6. 1945 Charles I. Longenecker

Aug 29 1947 Charles I. Longenecker

Nov 17. 1947 Charles I. Longenecker

July 24. 1948 W.J. Hoenecke

Oct 14. 1948 Charles I. Longenecker

Oct 2. 1950 Charles I. Longenecker

Sept 29. 1953 Otto Ballert

Dec 5. 1957 Marvin D Bennett

Jan 30. 1958 Grover D. Rose Jr.

Feb 17. 1959 Minesaburo Shimatani Japan

Aug 13. 1959 Egon Handl Netherlands

Nov 28. 1960 Kenneth Bertron Triebel

May 15. 1961 Kenneth Bertron Triebel

July 10. 1961 Eugene L. Sherrod

Feb 7. 1963 Kurt E. Schumann

July 9 1963 John T. Broadfoot

July 16. 1963 Orville L Wilkinson

July 16. 1963 Orville L Wilkinson

April 14. 1964 Marvin D Bennett

April 14. 1964 Marvin D Bennett

Jan 6. 1965 Max L.Smith


More to come, sorry this takes a bit of time.