Class 144/144.3 - Shaping propeller

Subclass of Class 144 - Woodworking
Definition: Machine particularly adapted to shape a member intended
No. of patents: 3
Last issue date: 04/22/1986

Number	Title	Issue Date
4583891	Structural component having a twisted profile and method and apparatus for producing such structural component A structural component having a twisted profile or cross-section, such as a arge scale wing for a windmill or for a helicopter, has an upper portion and a lower portion intimately bonded to each other along an interface formed by two separation surfaces. A...	04/22/1986
4578000	Method of protection A method for protecting stationary constructions, located in water and surrounded by water, against strain caused by a moving ice field in said water. A protective structure is arranged around said stationary construction. Said protective structure has a ...	03/25/1986
4578006	Impeller under file machine Apparatus for underfiling curvelinear vanes of cast centrifugal impellers. Such vanes are cast with generally uniform thickness along their length; it is desirable to have the vanes taper in thickness such that the radially outward portions are thinner th...	03/25/1986

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