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3815839
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Information
Patent Grant
3815839
References
Source
Patent Number
3,815,839
Date Filed
Not available
Date Issued
Tuesday, June 11, 1974
50 years ago
CPC
B65H75/242 - Expansible spindles, mandrels or chucks
B21C47/30 - expansible or contractible
B21C47/323 - Slits or pinces on the cylindrical wall of a reel or bobbin, adapted to grip the end of the material being wound
B65H75/243 - comprising a fluid pressure actuated elastic member
B65H75/28 - Arrangements for positively securing ends of material
B65H2301/414225 - fixed to shaft or mandrel
US Classifications
242 - Winding, tensioning, or guiding
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