(Download) "Winslow Engineering Company v. Leroy R." by United States Court of Appeals Ninth Circuit. # eBook PDF Kindle ePub Free
eBook details
- Title: Winslow Engineering Company v. Leroy R.
- Author : United States Court of Appeals Ninth Circuit.
- Release Date : January 13, 1955
- Genre: Law,Books,Professional & Technical,
- Pages : * pages
- Size : 66 KB
Description
The appellant as plaintiff below brought this action charging appellee-defendant with infringement of its Winslow & Moore Patent No. 2,345,849. The court below held the patent void for want of invention. Upon this appeal appellant assigns error in respect to the finding of want of invention and appellee asserts that the judgment must be affirmed not only for want of invention but for other reasons including the insufficiency of the claims. The patent, for a "lubricant purifier" discloses a replaceable filter element designed to filter lubricating oil or oil used for fuel in connection with engines and other machinery. Oil such as that used as a lubricant in an ordinary internal combustion engine tends to pick up and accumulate dust, dirt, and other solid matter and as these foreign particles increase, the lubricating quality of the oil diminishes which tends to shorten the life of the moving parts of the engine it is designed to protect. This necessitates changing the oil after it has thus deteriorated. In order to extend the useful life of such oils filters have heretofore been designed for the purpose of separating and filtering out impurities from engine lubricating oil. Most of these have utilized filter elements which may be used to replace those originally provided and which are required to be removed as they cease to function.
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