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 |
| 7364410 | Pressure storage structure for use in air A pressure storage structure for use in air is disclosed. The structure has a main body characterized in that the main body has been secured and the main body includes a plurality of air chambers, each chamber has an open end, and the chamber contains a piston, an e... | 04/29/2008 |
| 7186099 | Inclined scroll machine having a special oil sump A scroll-type compressor is provided in an inclined or inverted position with an oil sump disposed adjacent to a gas inlet of the scroll wraps to allow droplets of oil to be entrained in the gas being compressed so that the oil droplets in the gas can cool the scrol... | 03/06/2007 |
| 7160085 | Wind turbine A wind turbine, comprising a stationary vertical mast (or tower) on which a moving part of the wind turbine is arranged, which mast is at least partly composed from prefabricated wall parts, with several adjacent wall parts forming a substantially annular mast secti... | 01/09/2007 |
| 6863505 | Wind driven high pressure water pump This invention relates to a wind mill which is designed to convert rotational energy to mechanical energy to drive one or more pistons to raise a liquid such as water to an elevated location if necessary at a positive pressure. In addition, the present invention may... | 03/08/2005 |
| 5611677 | River pump device A river pump device (10) comprising a first conduit (12) immersed in a river (14), to receive water (16) from the river (14). A second conduit (18) carries the water (16) away from the river A mechanism (20) immersed in the river (14) is operable by the k... | 03/18/1997 |
| 5366342 | Water pumping push-pull windmill The windmill has a stub tower having a rotatable platform carrying a wind driven fan with an input shaft driving a transmission mechanism on the platform. The mechanism carries two balanced cranks which rotate continuously and two pitman arms at opposite ... | 11/22/1994 |
| 4820134 | Loop pump A loop pump (1) for pumping liquid, i.e. a pump comprising a pipe (3) or the like embodied in a plurality of turns/loops. The pipe is rotated by a drive source to introduce alternately air and liquid into an inlet (4) and to pump the liquid to a drawing p... | 04/11/1989 |
| 4718825 | Active control system for high speed windmills A pump stroke is matched to the operating speed of a high speed windmill. The windmill drives a hydraulic pump for a control. Changes in speed of a wind driven shaft open supply and exhaust valves to opposite ends of a hydraulic actuator to lengthen and s... | 01/12/1988 |
| 4507060 | Push-pull windmill head having double beam pumping jack This windmill head comprises a stub tower having a rotatable platform carrying a wind driven fan which drives a transmission mechanism. The mechanism has two cranks and pitman arms at opposite sides driving two rocking beams carrying counterweights. One b... | 03/26/1985 |
| 4475872 | Water pump and gear box therefor A water pump includes a pump stand and a spout mounted on the stand for communication with its interior. A rotary drive shaft supported by the pump stand extends downwardly to an underground water supply. A pump rotor supported by the drive shaft is posit... | 10/09/1984 |
| 4392785 | Pump control system for windmills A windmill control system having lever means, for varying length of stroke of the pump piston, and a control means, responsive to the velocity of the wind to operate the lever means to vary the length of stroke and hence the effective displacement of the ... | 07/12/1983 |
| 4217738 | Windmill tower A tower is hinged to a base, positioned at one side of a well, so the tower can be lowered to the ground in a direction away from the well. A lateral platform at the top of the tower extends over the well and the tower is rotatable, about a vertical axis,... | 08/19/1980 |
| 4049066 | Apparatus for reducing annular back pressure near the drill bit An apparatus adapted to be connected in a drill string is disclosed. It utilizes an axially located turbine which is driven by the mud flow through the drill string. The turbine is supported by a shaft and connected to an appropriate gear train. The gear ... | 09/20/1977 |
| 4008006 | Wind powered fluid compressor A wind machine comprising a fixed or controlled pitch blade assembly to drive a variable displacement or variable clearance fluid compressor. Means which may be mechanical, hydraulic, pneumatic or electrical interconnect the blade assembly and the compres... | 02/15/1977 |
