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 |
| 7410348 | Multi-speed compressor/pump apparatus A pumping/compressing apparatus for use in a fluid handling system transferring a fluid from one location, e.g., a tank, to another location or to an end use is provided. The apparatus basically includes a motor and a multistage, e.g., two stage, device including at... | 08/12/2008 |
| 7217110 | Compact rotary compressor with carbon dioxide as working fluid A rotary compressor for compressing a working fluid includes a housing having an oil sump. A stationary shaft extends into the housing and includes a longitudinal passage. The longitudinal passage has an oil inlet in fluid communication with the oil sump. A working ... | 05/15/2007 |
| 5020973 | Air compressor shroud A V-twin, two-stage compressor has valve plates disposed between the head and cylinder of each stage and mounting free-floating flexible read intake and exhaust valves therein. The flexible reeds are movably captured between the floors of respective reed ... | 06/04/1991 |
| 4478556 | Three or four stage gas compressor The invention concerns a three- or four-stage gas compressor comprising two interconnecting compression units operated by hydraulic pistons; the first unit comprises a central hydraulic section flanked by two identical and symmetrical lateral sections eac... | 10/23/1984 |
