초록 ▼

A pet drinking aid includes a cap defining an axial passage therewithin. Preferred embodiments of the cap include securing means for detachably securing the cap to a fluid container and an inwardly directed flange. The securing structure may include helical threads, an elastomeric sleeve or the like

A pet drinking aid includes a cap defining an axial passage therewithin. Preferred embodiments of the cap include securing means for detachably securing the cap to a fluid container and an inwardly directed flange. The securing structure may include helical threads, an elastomeric sleeve or the like. The cap further includes a ball positioned within the axial passage of said cap and, in a preferred embodiment a biasing structure mounted relative to the cap within the axial passage. The biasing structure advantageously engages the ball to bias the ball toward the inwardly directed flange. The ball is preferably captured within the axial passage between the inwardly directed flange and the biasing structure, and the ball is capable of rotatable movement and limited axial movement against the bias of the biasing structure. The biasing structure may include a compression spring, a foam member or the like. In an alternative embodiment, the biasing means is omitted and the cap includes an inwardly directed ridge extending from the cap's inner surface at an axial location intermediate the first and second ends of the cap.

대표청구항 ▼

A pet drinking aid includes a cap defining an axial passage therewithin. Preferred embodiments of the cap include securing means for detachably securing the cap to a fluid container and an inwardly directed flange. The securing structure may include helical threads, an elastomeric sleeve or the like

A pet drinking aid includes a cap defining an axial passage therewithin. Preferred embodiments of the cap include securing means for detachably securing the cap to a fluid container and an inwardly directed flange. The securing structure may include helical threads, an elastomeric sleeve or the like. The cap further includes a ball positioned within the axial passage of said cap and, in a preferred embodiment a biasing structure mounted relative to the cap within the axial passage. The biasing structure advantageously engages the ball to bias the ball toward the inwardly directed flange. The ball is preferably captured within the axial passage between the inwardly directed flange and the biasing structure, and the ball is capable of rotatable movement and limited axial movement against the bias of the biasing structure. The biasing structure may include a compression spring, a foam member or the like. In an alternative embodiment, the biasing means is omitted and the cap includes an inwardly directed ridge extending from the cap's inner surface at an axial location intermediate the first and second ends of the cap. 00, Bradberry; US-3952679, 19760400, Grihangne; US-3955524, 19760500, Renoux; US-3974789, 19760800, DeGroot; US-4108101, 19780800, Schirtzinger; US-4227474, 19801000, Ullrich; US-4227477, 19801000, Preus; US-4227478, 19801000, Preus; US-4230061, 19801000, Roberts; US-4373462, 19830200, Fish; US-4399765, 19830800, Alkner et al.; US-4506623, 19850300, Roper et al.; US-4509558, 19850400, Slater; US-4510201, 19850400, Takeuchi et al.; US-4582756, 19860400, Niinuma et al.; US-4641400, 19870200, Moreland; US-4662386, 19870500, Pedersen; US-4726986, 19880200, Cannady, Jr. et al.; US-4910817, 19900300, Tetsuo; US-4933231, 19900600, Seber; US-4948658, 19900800, Halker; US-4998498, 19910300, Gallichan; US-5082726, 19920100, Bastiaens et al.; US-5194459, 19930300, Sato et al.; US-5203272, 19930400, Kassinger et al.; US-5235928, 19930800, Shank, Jr.; US-5238537, 19930800, Dutt; US-5243925, 19930900, Fortenberry; US-5262230, 19931100, Becker et al.; US-5355819, 19941000, Hsia et al.; US-5360656, 19941100, Rexfelt et al.; US-5391424, 19950200, Kolzer; US-5413065, 19950500, Spragg et al.; US-5421128, 19950600, Sharpless et al.; US-5431970, 19950700, Broun et al.; US-5482763, 19960100, Shaffer; US-5488921, 19960200, Spragg; US-5503291, 19960400, Craig; US-5505557, 19960400, Bradley; US-5544612, 19960800, Eymard; US-5657714, 19970800, Hsia et al.; US-5691390, 19971100, Harrison et al.; US-5713399, 19980200, Collette et al.; US-5735083, 19980400, Brown et al.; US-5780144, 19980700, Bradley; US-5790304, 19980800, Sanders et al.; US-5865045, 19990200, Wagner et al.; US-5902070, 19990500, Bradley; US-5921421, 19990700, Fuquan; US-5951345, 19990900, Perratone et al.; US-6003565, 19991200, Whittier, II et al.; US-6047655, 20000400, Cran; US-6056438, 20000500, Bradley; US-6086968, 20000700, Horovitz; US-6101964, 20000800, Lesesne; US-6290818, 20010900, Romanski; US-6474022, 20021100, Double et al.; US-6550410, 20030400, Reimers ryl or substituted aryl); R9,R10,R11,R12,R13are independently selected from halide --OH, --SO2,--SH, --NO2,--NH2,straight chain, branched chain, cyclic, saturated, non-saturated, substituted or non-substituted alkyl, carboalkyl, alkoxy, amino, alkenyl, aryl and --CH2Ar (where Ar is aryl or substituted aryl), or a silane containing 1 to 6 silicon atoms; and X is a linking group containing 1 to 12 atoms; or a salt thereof. These compounds may be used as catalysts for asymmetric catalysts of organic reactions.