Suppression des soupapes :
Simplification (?)

Valves rotatives :

Ci dessous, un tableau présentant la liste des brevets concernant des soupapes rotatives pour moteurs à combustion interne, pompes et engins.

Nom Prénom Nationalité Date Publié le N°Brevet Pays
      demande     brevet
FOREST Fernand FR 1881 ? ? FR
FRYER ? ? ? 06/11/1894 528,537 US
MEAD ? ? ? 11/05/1909 921,264 US
VALLILLEE Leonard CN 06/06/1910 07/02/1911 983,328 US
BATZEL ? ? ? 02/09/1913 1,071,686 US
BERTRAM ? ? ? 09/09/1913 1,072,812 US
RUSSELL ? ? ? 02/06/1914 1,099,102 US
MUELLER ET AL ? US ? 06/1914 1,098,679 US
GUILLERY ? ? ? 06/04/1915 1,134,124 US
RUSSELL ? ? ? 06/09/1915 1,153,707 US
COFFIN ? ? ? 14/09/1915 1,153,675 US
ENGLISH ? US ? 11/1915 1,159,482 US
ECHARD Marcel FR 08/12/1915 13/10/1920 508.483 FR
ECHARD Marcel FR 08/12/1915 29/06/1921 145,783 GB
RUSSELL ? ? ? 04/01/1916 1,1660,90 US
TIBBETTS ? ? ? 29/05/1917 1,227,698 US
OFELDT Franck US ? 8/1917 1,238,559 US
FEDDEN Alfred, Hubert UK 03/07/1919 13/07/1920 1,346,535 US
BUTLER Léonard
FEDDEN Alfred, Hubert UK 26/08/1920 21/07/1921 166,467 GB
BUTLER Léonard
CRAWFORD Harry, H. US 25/06/1920 21/02/1922 1406979 US
ECHARD Marcel FR 28/06/1920 29/08/1922 1,427,726 US
FEDDEN Alfred Hubert   26/08/1920 21/07/1921 166,467 US
ECHARD Marcel FR 20/06/1920 17/08/1922 357111 AL
ECHARD Marcel FR 28/06/1920 01/04/1922 93893 CH
ECHARD Marcel FR 28/06/1920 29/08/1922 1,427,726 US
CARLSON Adolph G. US 18/04/1922 09/07/1929 1720206 US
CRAWFORD John, F. US 04/06/1923 26/05/1925 1,539,041 US
CROSS Roland UK 27/11/1923 31/07/1924 219,567 GB
OFELDT Franck US 11/03/1924 25/08/1925 1,551,209 US
OFELDT Franck US 11/03/1924 14/09/1926 1,599,430 US
CROSS Roland UK 09/03/1925 04/02/1926 246,687 UK
MUNDAY Reginald UK
FEDDEN Alfred, Hubert UK 30/06/1925 30/03/1926 1,579,098 US
BUTLER Leonard
CROSS Roland UK 03/11/1925 14/10/1926 259,400 UK
MUNDAY Reginald UK
FREYLER Adalbert AT 30/05/1927 21/07/1928 291,344 GB
KNAPP George USA
FRENCH Louis, O. US 15/04/1929 22/04/1933 1,923,666 US
KJAER Viggo DN 13/08/1929 19/09/1933 1,927,368 US
BAER Alfred AL 14/08/1929 09/09/1930 1,775,581 US
KING Clarence US 05/12/1929 12/04/1932 1,853,433 US
CROSS Roland UK 02/02/1931 02/06/1932 373,660 UK
CROSS Roland UK 14/10/1931 27/04/1932 724.479 FR
CROSS Roland UK 28/10/1931 15/11/1932 1,887,997 US
CROSS Roland UK 23/12/1932 19/04/1934 408,756 UK
CROSS Roland UK 23/12/1932 25/06/1934 412,584 UK
CROSS Roland UK 02/10/1933 31/05/1934 411,010 UK
CROSS Roland UK 20/12/1933 09/04/1935 1,997,133 US
CROSS Roland UK 22/12/1933 08/11/1934 44.466 FR
CROSS Roland UK 20/04/1934 01/02/1935 423,474 UK
CROSS Roland UK 16/01/1935 04/10/1935 436,117 UK
ASPIN Frank, Metcalf UK 23/03/1935 23/03/1937 463,412 UK
CROSS Roland UK 26/03/1935 18/10/1935 788.820 FR
CROSS Roland UK 28/03/1935 28/04/1936 2,038,830 US
CROSS Roland UK 17/07/1935 04/06/1936 448,368 UK
ASPIN Frank, Metcalf UK 23/07/1935 01/07/1935 14,377 INTER
CROSS Roland UK 31/10/1935 08/06/1936 448,384 UK
CROSS Roland UK 09/11/1935 08/03/1937 462,347 UK
CROSS Roland UK 27/03/1936 21/06/1937 467,620 UK
ASPIN Frank, Metcalf UK 06/07/1936 31/07/1938 199016 CH
ASPIN Frank, Metcalf UK 06/07/1936 19/05/1942 2,283,594 US
ASPIN Frank, Metcalf UK 08/07/1936 04/03/1937 809.506 FR
ASPIN Frank, Metcalf UK 09/07/1936 08/07/1949 871 985 AL
CROSS Roland UK 19/09/1936 08/02/1938 479,539 UK
CROSS Roland UK 09/12/1936 28/06/1937 814.746 FR
CROSS Roland UK 09/12/1936 29/12/1939 685934 AL
CROSS Roland UK 10/12/1936 31/08/1938 199564 CH
CROSS Roland UK 12/12/1936 15/08/1939 2,169,630 US
CROSS Roland UK ? 11/07/1937 14,343 INTER
CROSS Roland UK 11/06/1937 15/08/1939 2,169,631 US
CROSS Roland UK 01/12/1937 21/03/1938 481,933 UK
ASPIN Frank, Metcalf UK 01/03/1938 15/08/1939 511,208 UK
ASPIN Frank, Metcalf UK 24/02/1939 17/06/1941 2,245,743 US
CROSS Roland UK 05/12/1938 28/04/1939 504,709 UK
TIPTON William US 02/03/1939 24/09/1940 2,216,057 US
ASPIN Frank, Metcalf UK 23/09/1939 25/09/1940 535,856 UK
ASPIN Frank, Metcalf UK 09/12/1939 27/11/1940 537,863 UK
GERNANDT Waldo US 04/03/1940 24/04/1945 2,374,190 US
TJAARDA John US 09/11/1940 27/07/1943 2,325,288 US
TJAARDA John US 29/11/1940 24/08/1943 2,327,470 US
TJAARDA John US 04/12/1940 11/08/1942 2,292,585 US
HEYLANDT Christian AL 26/12/1940 28/09/1943 2,330,583 US
MEWES Rudolf
BAER Alfred
PUMUTZ Albert
ASPIN Frank, Metcalf UK 28/12/1940 15/09/1942 2,286,081 US
ASPIN Frank, Metcalf UK 30/12/1940 08/06/1942 545,669 UK
CROSS Roland UK 18/09/1941 08/01/1943 550,459 UK
ISLEY Walter US 23/02/1942 22/12/1942 2,305,874 US
ASPIN Frank, Metcalf UK 16/03/1942 20/10/1943 556,740 UK
ASPIN Frank, Metcalf UK 27/05/1942 25/11/1943 557,564 UK
ASPIN Frank, Metcalf UK 27/05/1942 25/11/1943 557,565 UK
ASPIN Frank, Metcalf UK 25/06/1942 02/03/1943 559,710 UK
ASPIN Frank, Metcalf UK 25/06/1942 20/03/1944 560,086 UK
ASPIN Frank, Metcalf UK 01/10/1942 11/03/1943 562,549 UK
TIPTON William US 21/09/1942 19/01/1943 2,308,839 US
TJAARDA John US   24/08/1943 2,362,747 US
GERNANDT Waldo US 02/05/1942 16/10/1945 2,387,114 US
GERNANDT Waldo US 02/05/1942 24/04/1945 2,374,191 US
BIRKIGT Louis CH 22/05/1942 22/09/1942   FR
BIRKIGT Louis CH 22/05/1942 25/09/1946 2,402,725 US
GERNANDT Waldo US 05/08/1942 12/12/1944 2,364,629 US
FRANK Clarence US 23/11/1942 05/06/1945 2,377,336 US
MELLORS Edward UK 26/01/1943 07/04/1944 559,830 UK
ASPIN Frank, Metcalf UK 11/03/1943 16/10/1944 564,850 UK
ASPIN Frank, Metcalf UK 12/03/1943 31/07/1944 562,933 UK
CROSS Roland UK 06/05/1943 25/07/1944 2,354,305 US
ASPIN Frank, Metcalf UK 12/05/1943 08/12/1944 566,180 UK
ASPIN Frank, Metcalf UK 12/05/1943 21/12/1944 566,305 UK
ASPIN Frank, Metcalf UK 19/05/1943 30/10/1945 2,387,972 US
ASPIN Frank, Metcalf UK 19/05/1943 12/06/1945 2,378,120 US
ASPIN Frank, Metcalf UK 16/06/1943 02/07/1946 2,403,165 US
GERNANDT Waldo US 19/07/1943 08/10/1945 2,409,034 US
WALDEN Alfred
ASPIN Frank, Metcalf UK 15/09/1943 30/10/1945 2,387,973 US
GERNANDT Waldo US 13/10/1943 16/10/1945 2,387,143 US
WALDEN Alfred
FRANK Clarence US 22/11/1943 15/04/1947 2,419,066 US
ASPIN Frank, Metcalf UK 07/12/1943 29/12/1944 570,286 UK
ASPIN Frank, Metcalf UK 07/12/1943 03/07/1945 570,354 UK
FRANK Clarence US 24/12/1943 07/01/1947 2413820 US
GERNANDT Waldo US 07/01/1944 11/09/1945 2,384,461 US
FRANK Clarence US 15/01/1944 04/06/1946 2,401,630 US
GERNANDT Waldo US 28/02/1944 04/06/1946 2,401,631 US
ASPIN Frank US 23/03/1944 21/10/1947 2,429,304 US
FRANK Clarence US 28/03/1944 08/10/1946 2,409,031 US
ASPIN Frank, Metcalf UK 08/05/1944 12/05/1943 16,726 INTER
ASPIN Frank, Metcalf UK 19/05/1944 03/09/1945 2,407,127 US
ASPIN Frank, Metcalf UK 20/07/1944 30/11/1945 573,685 UK
ASPIN Frank, Metcalf UK 01/07/1944 07/08/1945 2,381,711 US
ASPIN Frank, Metcalf UK 20/07/1944 30/04/1948 601,217 UK
GERNANDT Waldo US 21/08/1944 05/06/1946 582,115 GB
GERNANDT Waldo US 21/08/1944 15/07/1946 578,866 GB
GERNANDT Waldo US 12/10/1944 04/04/1946 576,465 GB
ASPIN Frank, Metcalf UK 01/02/1945 07/10/1947 593,035 UK
GERNANDT Waldo US 07/06/1945 04/02/1947 2,415,130 US
FRANK Clarence US 24/08/1945 09/09/1947 2,427,270 US
WYATT Ryamond US 24/08/1945 09/09/1947 2,427,270 US
ASPIN Frank, Metcalf GB 06/12/1945 05/04/1950 635,339 UK
CARLSON Bert US 16/03/1946 28/12/1948 2,457,206 US
ASPIN Frank, Metcalf UK 18/03/1946 17/05/1950 637,362 UK
ASPIN Frank, Metcalf UK 11/05/1946 01/05/1952 280623