US PATENT SUBCLASS 416 / 247 A
.~ Water or marine propellers


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

247 R  DF  PROTECTIVE SCREEN OR GUARD {1}
247 A.~ Water or marine propellers

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 416/247

(under the class definition) Apparatus wherein an obstructing member or open frame structure is located adjacent or about the impelling means to prevent contact of the impelling means by foreign objects or by animals.

(1) Note. Included under this definition of a protective screen or guard is a device to confine spray or splash caused by motion of the impeller and to prevent such spray or splash from impinging on adjacent surfaces.

SEE OR SEARCH CLASS

440, Marine Propulsion,

71+, for screw propeller guard means limited to vessel propulsion and see Class Definition of this class (416) for a general statement of the line.