# US 2008/0185848 A1 · Safety hook > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0185848 A1 - Document ID: US20080185848A1 - Status: Published application - Kind: A1 - Application number: 11/881,855 - Filed: 2007-07-30 - Published: 2008-08-07 - Earliest claimed: 2007-02-07 - Inventors: Don F. Coulombe - Web page: https://patentgrep.com/patent/US20080185848A1 ## CPC - F16B 45/028: {the position-locking means being pivotally connected} - F16B 45/023: {the closing member pivoting about an axis perpendicular to the plane of the hook} - F16B 45/024: {and having means biasing the closing member about the pivot} - F16B 45/026: {and including a coil type spring} - Y10T 292/03: Miscellaneous - Y10T 292/0913: Sliding and swinging - Y10T 292/0917: Lever - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A safety mechanism for a gate having first and second ends, a first fulcrum point intermediate the first and second ends and a first rotational axis proximate the second end, the safety mechanism including a first force resisting means intermediate the first fulcrum point and the first rotational axis, wherein a force applied to the first end is transmitted toward the first rotational axis via the first fulcrum point and the first force resisting means prevents transmission of the force to the first rotational axis. The present invention also comprises a safety mechanism for a gate having first and second ends, a locking means and a first rotational axis proximate said second end, wherein a force applied to the first end is transmitted toward the first rotational axis via the locking means, the safety mechanism including a first force resisting means intermediate the first rotational axis and the force, wherein the first force resisting means prevents transmission of the force to the first rotational axis. ## Claims ### Claim 1 A safety mechanism for a gate having first and second ends, a fulcrum point intermediate said first and second ends and a first rotational axis proximate said second end, said safety mechanism comprising: a first force resisting means intermediate said fulcrum point and said first rotational axis, wherein a force applied to said first end is transmitted toward said first rotational axis via said fulcrum point and said first force resisting means prevents transmission of said force to said first rotational axis. ### Claim 2 (depends on 1) The safety mechanism of claim 1 further comprising a hook having a hook body comprising two sides, a first through-hole in aligned position with said first rotational axis and said first force resisting means comprises a first protrusion extending from each of said two sides of said hook body and each of the first protrusions is proximate said first through-hole and said gate comprises spaced apart parallel gate side walls. ### Claim 3 (depends on 2) The safety mechanism of claim 2 wherein said first force resisting means further comprises an elevated portion disposed in each of said spaced apart parallel gate side walls and, said elevated portions arranged opposite each other and each of said elevated portions includes a bearing surface arranged for locking engagement with one of said first protrusions. ### Claim 4 (depends on 3) The safety mechanism of claim 3 wherein said elevated portions are substantially linear or substantially curved. ### Claim 5 (depends on 2) The safety mechanism of claim 2 wherein said hook body has a thickness and said first protrusions are formed by a pin inserted through a second through-hole in said hook body, said pin having a length greater than said thickness. ### Claim 6 (depends on 2) The safety mechanism of claim 2 wherein said first protrusions are formed integrally on said hook body. ### Claim 7 (depends on 6) The safety mechanism of claim 6 wherein said first protrusions are co-axial. ### Claim 8 (depends on 2) The safety mechanism of claim 2 further comprising a release lever having spaced apart parallel lever side walls, a second force resisting means and a second rotational axis, said lever side walls comprising a first locking means, said gate side walls comprising a second locking means arranged to complimentarily engage said first locking means, said hook body further comprises a second through-hole in aligned position with said second rotational axis and said second force resisting means comprises a second protrusion extending from each of said two sides of said hook body and each of the second protrusions is proximate said second through-hole, wherein said second force resisting means is arranged to engage said second protrusions when said force is applied to said gate. ### Claim 9 (depends on 8) The safety mechanism of claim 8 wherein said second force resisting means further comprises an elevated portion disposed in each of said spaced apart parallel lever side walls, said elevated portions arranged opposite each other and each of said elevated portions includes a bearing surface arranged for locking engagement with one of said second protrusions. ### Claim 10 (depends on 9) The safety mechanism of claim 9 wherein said elevated portions are substantially linear or substantially curved. ### Claim 11 (depends on 8) The safety mechanism of claim 8 wherein said hook body has a thickness and said second protrusions are formed by a pin inserted through said second through-hole in said hook body, said pin having a length greater than said thickness. ### Claim 12 (depends on 8) The safety mechanism of claim 8 wherein said second protrusions are formed integrally on said hook body. ### Claim 13 (depends on 12) The safety mechanism of claim 12 wherein said second protrusions are co-axial. ### Claim 14 A hook comprising: a first force resisting means; a hook body having two sides, first and second ends, first and second through-holes and said first force resisting means comprises a first protrusion extending from each of said two sides and each of the first protrusions is proximate said second through-hole, said first end comprises a bent portion having a nose, said second end comprises an opening, and said first and second through-holes define first and second rotational axes, respectively; a release lever having spaced apart parallel lever side walls, said lever side walls comprising a first locking means and third and fourth through-holes, said third and fourth through-holes are oppositely disposed, aligned with said first through-hole, and include a release lever mounting rivet disposed therethrough; and, a gate having spaced apart parallel gate side walls, said gate side walls comprising a second locking means and fifth and sixth through-holes, said fifth and sixth through-holes are oppositely disposed, aligned with said second through-hole, and include a gate mounting rivet disposed therethrough, said gate arranged to engage said nose, said second locking means arranged to complimentarily engage said first locking means, wherein said first force resisting means arranged to engage said first protrusions when a force is applied against said gate in a direction to rotate said gate about said second rotational axis and pivoting of said release lever about a first rotational axis disengages said first and second locking means and permits pivoting of said gate about the second rotational axis. ### Claim 15 (depends on 14) The hook of claim 14 wherein said hook body has a thickness and said first protrusions are formed by a pin inserted through a seventh through-hole in said hook body, said pin having a length greater than said thickness. ### Claim 16 (depends on 14) The hook of claim 14 wherein said first protrusions are formed integrally on said hook body. ### Claim 17 (depends on 16) The hook of claim 16 wherein said first protrusions are co-axial. ### Claim 18 (depends on 14) The hook of claim 14 wherein said first force resisting means further comprises an elevated portion disposed in each of said spaced apart parallel gate side walls, said elevated portions arranged opposite each other and each of said elevated portions includes a bearing surface arranged for locking engagement with one of said first protrusions. ### Claim 19 (depends on 18) The hook of claim 18 wherein said elevated portions are substantially linear or substantially curved. ### Claim 20 (depends on 14) The hook of claim 14 further comprising a second force resisting means, said second force resisting means comprises a second protrusion extending from each of said two sides of said hook body and each of the second protrusions is proximate said first through-hole, wherein said second force resisting means is arranged to engage said second protrusions when said force is applied against said gate in a direction to rotate said gate about said second rotational axis. ### Claim 21 (depends on 20) The hook of claim 20 wherein said second force resisting means further comprises an elevated portion disposed in each of said spaced apart parallel lever side walls, said elevated portions arranged opposite each other and each of said elevated portions includes a bearing surface arranged for locking engagement with one of said second protrusions. ### Claim 22 (depends on 21) The hook of claim 21 wherein said elevated portions are substantially linear or substantially curved. ### Claim 23 (depends on 20) The hook of claim 20 wherein said hook body has a thickness and said second protrusions are formed by a pin inserted through a seventh through-hole in said hook body, said pin having a length greater than said thickness. ### Claim 24 (depends on 20) The hook of claim 20 wherein said second protrusions are formed integrally on said hook body. ### Claim 25 (depends on 24) The hook of claim 24 wherein said second protrusions are co-axial. ### Claim 26 A safety mechanism for a gate having first and second ends, a locking means and a first rotational axis proximate said second end, wherein a force applied to said first end is transmitted toward said first rotational axis via said locking means, said safety mechanism comprising: a first force resisting means intermediate said first rotational axis and said force, wherein said first force resisting means prevents transmission of said force to said first rotational axis. ### Claim 27 (depends on 26) The safety mechanism of claim 26 wherein said first force resisting means is proximate said first rotational axis. ### Claim 28 (depends on 26) The safety mechanism of claim 26 further comprising a hook having a hook body comprising two sides, a first through-hole in aligned position with said first rotational axis and said first force resisting means comprises a first protrusion extending from each of said two sides of said hook body and each of the first protrusions is proximate said first through-hole and said gate comprises spaced apart parallel gate side walls. ### Claim 29 (depends on 28) The safety mechanism of claim 28 wherein said first force resisting means further comprises an elevated portion disposed in each of said spaced apart parallel gate side walls and, said elevated portions arranged opposite each other and each of said elevated portions includes a bearing surface arranged for locking engagement with one of said first protrusions. ### Claim 30 (depends on 29) The safety mechanism of claim 29 wherein said elevated portions are substantially linear or substantially curved. ### Claim 31 (depends on 28) The safety mechanism of claim 28 wherein said hook body has a thickness and said first protrusions are formed by a pin inserted through a second through-hole in said hook body, said pin having a length greater than said thickness. ### Claim 32 (depends on 28) The safety mechanism of claim 28 wherein said first protrusions are formed integrally on said hook body. ### Claim 33 (depends on 32) The safety mechanism of claim 32 wherein said first protrusions are co-axial.