Number | Name | Date | Kind |
---|---|---|---|
212556 | Johnson | Feb 1879 | |
443326 | Leverich | Dec 1890 | |
932172 | Porter et al. | Aug 1909 | |
965322 | Peterson | Jul 1910 | |
1167145 | Baverey | Jan 1916 | |
1328565 | Howard | Jan 1920 | |
1541047 | Hart | Jun 1925 | |
1744798 | Price | Jan 1930 | |
2051881 | Mock | Aug 1936 | |
2095263 | Moss | Oct 1937 | |
2271390 | Dodson | Jan 1942 | |
2796082 | Green | Jun 1957 | |
2833511 | Fletcher | May 1958 | |
2910266 | Condello et al. | Oct 1959 | |
3008685 | Rudden | Nov 1961 | |
3062232 | McGay | Nov 1962 | |
3065950 | Goldberg | Nov 1962 | |
3200838 | Sheaffer | Aug 1965 | |
3298659 | Cupedo | Jan 1967 | |
3344808 | Cary | Oct 1967 | |
3400907 | Horn et al. | Sep 1968 | |
3442489 | Cary et al. | May 1969 | |
3516640 | Bryer et al. | Jun 1970 | |
3545486 | Larson | Jan 1969 | |
3675681 | Obermaier | Jul 1972 | |
3677297 | Walton | Jul 1972 | |
3794288 | Dolder et al. | Feb 1974 | |
3960177 | Baumann | Jun 1976 | |
3971414 | Illing | Jul 1976 | |
3982725 | Clark | Sep 1976 | |
3993096 | Wilson | Nov 1976 | |
4084617 | Happe | Apr 1978 | |
4190074 | Mailliet et al. | Feb 1980 | |
4313592 | Baas | Feb 1982 | |
4367861 | Bray et al. | Jan 1983 | |
4508132 | Mayfield, Jr. et al. | Apr 1985 | |
4534538 | Buckley et al. | Aug 1985 | |
4556192 | Ramisch | Dec 1985 | |
4586693 | Tinner | May 1986 | |
4706706 | Page et al. | Nov 1987 | |
4712768 | Herr et al. | Dec 1987 |
Number | Date | Country |
---|---|---|
2821766 | Nov 1979 | DEX |
1533073 | Jan 1976 | GBX |
Entry |
---|
"Fishtail vs. Conventional Discs in Butterfly Valves", Carl D. Wilson, Instruments & Control Systems/vol. 41; Mar. 1968. |
"A Note on the Reduction of the Fluid-Dynamic Torque of Butterfly Valves", D. W. Bryer and D. E. Walshe, National Physical Laboratory, Aerodynamics Division, Sep. 1966. |