公开(公告)号：US5298389A

公开(公告)日：1994-03-29

申请号：US952936

申请日：1992-09-29

申请人： Steven D. Possanza ,  Donald E. Eaton ,  Lawrence D. Meston ,  Edgar P. Lougheed

发明人： Steven D. Possanza ,  Donald E. Eaton ,  Lawrence D. Meston ,  Edgar P. Lougheed

IPC分类号： G03C1/005 ,  G03C1/015

CPC分类号： G03C1/005

摘要： The present invention is a method to add dry gelatin to a photographic emulsion in either a liquid or a solid form. The dry gelatin is added by entraining the dry gelatin in air to form a gaseous mixture of dry gelatin in air and directing this mixture into the solid or liquid photographic emulsion. An air eductor is used to deliver the dry gelatin. When adding dry gelatin to a solution, the rate is determined by the solution viscosity and volume. When adding the dry gelatin to a solid emulsion, the dry gelatin rate is not as critical but uniform addition is still needed to interdisperse the dry gel with the emulsion pellets.

摘要翻译： 本发明是将干明胶添加到液体或固体形式的照相乳剂中的方法。 通过将空气中干燥的明胶夹带在空气中形成干燥明胶的气体混合物并将该混合物引入固体或液体照相乳剂中来加入干明胶。 使用空气喷射器输送干明胶。 当向溶液中加入干明胶时，速率由溶液的粘度和体积决定。 当将干明胶加入到固体乳液中时，干明胶速率不是至关重要的，但仍然需要均匀的添加以使干凝胶与乳液颗粒分散。

公开(公告)号：US06644348B2

公开(公告)日：2003-11-11

申请号：US09996653

申请日：2001-11-28

申请人： Steven D. Possanza ,  Angela H. R. Jones ,  Brian J. Connolly ,  Edgar P. Lougheed

发明人： Steven D. Possanza ,  Angela H. R. Jones ,  Brian J. Connolly ,  Edgar P. Lougheed

IPC分类号： F16K1120

CPC分类号： F16K27/003 ,  Y10T137/87249

摘要： A multiport valve is taught for regulating flow of liquid therethrough originating from at least two sources. The valve includes a three cylindrical valve chambers each having a piston residing therein such that through actuation of the pistons flow through each valve chamber can be permitted or stopped independently. There is an inlet port that tangentially intercepts the first cylindrical valve chamber and there is an outlet port that tangentially intercepts an intermediate cylindrical valve chamber. The design of the three valve chambers and the inlet and outlet ports to the valve chambers effectively eliminates any bubble traps in the valve and allows bubbles to be swept from the valve chambers.

公开(公告)号：US5108611A

公开(公告)日：1992-04-28

申请号：US745669

申请日：1991-08-16

申请人： Stephen P. Chen ,  Edgar P. Lougheed ,  Carl B. Richenberg

发明人： Stephen P. Chen ,  Edgar P. Lougheed ,  Carl B. Richenberg

IPC分类号： G03C7/388

CPC分类号： G03C7/388

摘要： A method of preparing a coupler dispersion in gelatin by separating the auxiliary coupler solvent using a hydrophobic microporous membrane and contacting the opposite surface of the membrane with a coupler solvent.

摘要翻译： 通过使用疏水性微孔膜分离辅助成色剂溶剂并使膜的相对表面与成色剂溶剂接触来制备明胶中的成色剂分散体的方法。

公开(公告)号：US5024929A

公开(公告)日：1991-06-18

申请号：US516955

申请日：1990-04-30

申请人： Edgar P. Lougheed ,  Carl B. Richenberg ,  Stephen P. Chen

发明人： Edgar P. Lougheed ,  Carl B. Richenberg ,  Stephen P. Chen

IPC分类号： G03C7/388

CPC分类号： G03C7/388 ,  Y10S516/924

摘要： A method of preparing a coupler dispersion in gelatin by separating the auxiliary coupler solvent using a hydrophilic membrane having a pure size less than 175 Angstroms.

摘要翻译： 通过使用纯度尺寸小于175埃的亲水膜分离辅助成色剂溶剂，在明胶中制备成色剂分散体的方法。