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    • 1. 发明授权
    • 7,8-Dihydroimidazo[1,5-a]pyrazin-8-ones
    • 7,8-二氢咪唑并[1,5-a]吡嗪-8-酮
    • US4578386A
    • 1986-03-25
    • US578916
    • 1984-02-10
    • Thomas D. Lee
    • Thomas D. Lee
    • A61K31/495A61P9/00C07D233/92C07D403/06C07D487/04A61K31/50A61K31/53C07D519/00
    • C07D233/92C07D403/06C07D487/04
    • Provided are compounds of the structure: ##STR1## wherein R.sub.1, R.sub.3, R.sub.5 and R.sub.6 are independently H, alkyl, aralkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkenyl, alkynyl, hydroxy, hydroxyalkyl, alkoxy, mercapto, mercaptoalkyl, alkylthio, amino, alkylamino, aminoalkyl, formyl, carboxy and salts thereof, carbalkoxy, alkanoyl, cyano, nitro, halo, trifluoromethyl, alkylsulfonyl, aminosulfonyl, carbamoyl or cycloalkyl; andR.sub.7 is H, alkyl, aryl, aralkyl, oxo, or alkanoyl;wherein at least one of R.sub.1 R.sub.5 or R.sub.6 is an aryl, heteroaryl, or heteroaryl substituted with H, alkyl, halo, amino, trifluoromethyl or cyano.
    • 提供以下结构的化合物:其中R1,R3,R5和R6独立地为H,烷基,芳烷基,芳基,取代的芳基,杂芳基,取代的杂芳基,烯基,炔基,羟基,羟烷基,烷氧基,巯基,巯基烷基, 烷硫基,氨基,烷基氨基,氨基烷基,甲酰基,羧基及其盐,烷氧基,烷酰基,氰基,硝基,卤素,三氟甲基,烷基磺酰基,氨基磺酰基,氨基甲酰基或环烷基; 并且R 7是H,烷基,芳基,芳烷基,氧代或烷酰基; 其中R 1 + L,R 5或R 6中的至少一个是被H,烷基,卤素,氨基,三氟甲基或氰基取代的芳基,杂芳基或杂芳基。
    • 10. 发明授权
    • Gasketed flange sealer
    • 垫圈法兰密封
    • US4124140A
    • 1978-11-07
    • US882594
    • 1978-03-02
    • Michael J. ZieglerThomas D. Lee
    • Michael J. ZieglerThomas D. Lee
    • B65D39/08B65D53/00
    • B65D39/084
    • A closure for an opening in the surface of a drum or barrel, especially for a drum or barrel which has been reconditioned by heating so that the original gaskets have been burned out of the opening. The closure includes a cylindrical sleeve disposed in the opening and having a threaded inner surface. The threads of an externally threaded cylindrical cap engage the threads of the sleeve. The cap has an annular generally circular lip about its outer periphery and at its outer end, which lip extends perpendicularly to the sleeve adjacent the outer end of the sleeve so that the outer portion of the lip is parallel to the drum surface. A flexible resilient cylindrical gasket is coaxially mounted external to the sleeve so that the gasket lies between the lip and the drum surface. When the cap is screwed inwards into the sleeve, the lip compresses the gasket against the surface of the drum so that the gasket is squeezed and deforms, and thus so that the gasket forms a closure seal against fluid flow out of the drum.
    • 用于鼓或桶的表面中的开口的封闭件,特别是用于已经通过加热再生的鼓或桶的开口,使得原始垫圈已经从开口中燃烧。 封闭件包括设置在开口中并具有螺纹内表面的圆柱形套筒。 外螺纹圆柱形盖子的螺纹与套筒的螺纹啮合。 盖子围绕其外周边具有环形的大致圆形的唇部,并且在其外端处,该唇缘与套筒的外端垂直地延伸,使唇部的外部部分平行于滚筒表面。 柔性弹性圆柱形垫片同轴地安装在套筒的外部,使得垫圈位于唇缘和鼓表面之间。 当盖子向内拧入套筒时,唇部将垫圈压靠在滚筒的表面上,使得垫圈被挤压和变形,从而使得垫圈形成封闭密封件,以防止流体流出滚筒。