Class 411/976 - Bent tongue-locked

Subclass of Class 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
Definition: Art collection under art collection 975 wherein the washer
No. of patents: 2
Last issue date: 06/22/1993

Number	Title	Issue Date
5221168	Device for fixing external part to shaft A device for fixing an external part to a shaft, which clam a boll and roller bearing by a washer and a nut. The washer is provided with a plurality of projecting engageable pawls on the outer periphery thereof and a projecting tongue piece on the inner p...	06/22/1993
4787791	Lock washer for bubble cap assembly A bubble cap assembly is provided with keyways and a special keyed lock washer with locking tabs to securely fasten the bubble cap during operation in a reactor. The unique arrangement also accommodates simple removal for easy maintenance and decoking wit...	11/29/1988

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