Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 5320223 | Insert having part numbers or the like printed at the bottom of retaining recesses An insert for a tool box drawer or the like has a first lower layer of compressible material such as foam above which is a second upper layer of compressible material. The second upper layer of compressible material has a plurality of cut outs therein, ea... | 06/14/1994 |
| 4686932 | Apparatus for applying a modifying ingredient to open-celled polyurethane material An apparatus for applying a modifying ingredient to a mass of open-celled polyurethane foam includes the application of an excess of a liquid solution or dispersion of the modifying ingredient to the mass of foam. A fixed frame mounts a plurality of space... | 08/18/1987 |
| 4482391 | Cleaning method and apparatus for parabolic cellular louvers for lighting fixtures An apparatus for cleaning a lighting fixture louver of the type which has parabolic cells that are open top and bottom. A cleaning roller of a graft polyol polyether urethane having an indentation load deflection of the order of 100 has a surface which co... | 11/13/1984 |
| 4228076 | Method of densifying open-celled polyurethane material A method of densifying open-celled polyurethane foam is provided in which heated air at a temperature between about 425° F. and 460° F. is circulated through a mass of the foam so as to rapidly and uniformly raise the temperature of the mass to between ... | 10/14/1980 |
| 4073979 | Method of applying modifying ingredients to open-celled polyurethane material The method of treating open-celled polyurethane foam by the application of a modifying ingredient, such as a dye, pigment, color stabilizer or fire retardant, for example, wherein the method comprises the steps of (a) applying an excess of a liquid soluti... | 02/14/1978 |
