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Dual capacity chain hooks

  • US 3,233,933 A
  • Filed: 11/13/1963
  • Issued: 02/08/1966
  • Est. Priority Date: 11/13/1963
  • Status: Expired due to Term
First Claim
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1. A CHAIN HOOK SELECTIVELY USABLE AS EITHER A GRAB HOOK OR A CHOKER HOOK, SAID CHAIN HOOK COMPRISING:

  • A PAIR OF LATERALLY SPACED, ARCUATE TINES STEMMING FROM A COMMON SHANK AND DEFINING A CLEFT BETWEEN THEM, SAID TINES EACH INCLUDING A PAINT PORTION, A BIGHT PORTION INTERCONNECTING BETWEEN SAID POINT PORTION AND THE COMMON SHANK, A SHARPLY ROUNDED INBOARD EDGE BORDERING THE CLEFT, AND AN OUTBOARD SIDE SURFACE OF RELATIVELY FLAT CURVATURE, THE CORD OF WHICH INCLINES INWARDLY, WITH THE SHARPLY ROUNDED INBOARD EDGES OF THE TINES TOGETHER FORMING A CRADLE FOR ENGAGING AND HOLDING THE END PORTION OF A CHAIN LINK WHEN THE HOOK IS USED IN A GRAB HOOK CAPACITY, WITH THE OUTBOARD SIDE SURFACES OF THE TINES, TOGETHER FORMING A TRANSVERSE CHAIN SEAT OF A SHALLOW, ROUNDED ARCH FORM, EXTENDING ACROSS BOTH TINES AND BEING INTERRUPTED ONLY BY THE CLEFT, FOR SUPORTING A PLURALITY OF SUCCESSIVELY JOINED CHAIN LINKS WHEN THE CHAIN IS USED IN A CHOKER HOOK CAPACITY, AND WITH THE COMMON SHANK AND THE BIGHT AND POINT PORTIONS OF THE TINES TOGETHER FORMING A HOOK THROAT OF ROUNDED ARCH FROM OF A SIZE LARGER ENOUGH TO LOOSELY ACCOMMODATE THE WIDER TRANSVERSE DIMENSION OF THE CHAIN LINKS SUPPORTED BY THE TRANSVERSE CHAIN SEAT WHEN THE HOOK IS USED IN A CHOKER HOOK CAPACITY.

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