Class 411/928 - Thread gripper

Subclass of Class 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
Definition: Art collection under art collection 925 in which the stop
No. of patents: 2
Last issue date: 02/13/1979

Number	Title	Issue Date
4139038	Device for safeguarding screw connections and other movable parts against accidental loosening A device for safeguarding screw connections and other rotatable and/or longitudinally movable parts against accidental loosening. The device includes a conical dish or plate spring which by means of the free end face of its inner and/or outer marginal zon...	02/13/1979
3969011	Attachment assembly for preventing improper positional mounting An attachment assembly is provided, particularly for use in automobiles, wherein one of a pair of male and female connectors may be mounted in a desired position for engagement by the other connector. A nut mounted upon one said connector is adapted to be...	07/13/1976

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