Passive capture slip-proof chain handling hook
View Patent ↗A chain hook with no moving parts that is capable of passively capturing and supporting both sides of a given chain link. The hook is provided with dual support surfaces that support the link and prevent disengagement of the hook while under load. A horn between the support surfaces protrudes through the hooked link and contacts the adjacent link on the lighter loaded side of the hook. This prevents running of the chain that could result from differential loading on either side of the hooked chain link. The hook surfaces are designed to inhibit disengagement under low load conditions and to facilitate unassisted disengagement of the hook under no-load conditions.
1. A chain hook for passively capturing and supporting both sides of a given chain link to handle a continuous length of chain, comprising:
a. a body;
b. a first connection means provided at the top of said body;
c. a second connection means provided at the back of said body, said second connection means being used to handle the chain hook and during engagement or disengagement of a chain link but not during load bearing operations;
d. a horn projecting outward from the front of said body and sized to be received in one chain link, said horn protruding through the engaged link and contacting the adjacent link on the lighter loaded leg of a continuous chain thereby providing a means of support for any unequal loading in the leg of a continuous chain;
e. a first chain link support surface on the front of said body defined by said horn;
f. a second chain link support surface on the front of said body and positioned below said horn; and
g. said first and second chain link support surfaces providing support to both sides of an engaged chain link in the near vertical position when the chain link is placed under loading support by the chain hook, said first and second chain link support surfaces allowing release of the engaged chain link upon removal of the supporting load.