# US 6,295,896 B1 · Socket wrench having two engaging rods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,295,896 B1 - Document ID: US6295896B1 - Status: Granted - Kind: B1 - Application number: 09/606,363 - Filed: 2000-06-29 - Granted: 2001-10-02 - Earliest claimed: 2000-06-29 - Inventors: Liao I-He - Web page: https://patentgrep.com/patent/US6295896B1 ## CPC - B25B 13/463: {a pawl engaging an externally toothed wheel} - B25B 23/0035: {Connection means between socket or screwdriver bit and tool} - B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING ## Abstract A socket wrench includes a head with two engaging rods respectively extending from two sides of the head. Each engaging rod has a disk connected thereto and a spring is connected between the two disks. A release pin extends through the two engaging rods and has two notches for respectively receiving two balls embedded in the two engaging rods. A pawl member is pivotally received in the head and engaged with either one of the two disks. The two engaging rods are connected to two sockets with different sizes. ## Claims ### Claim 1 A wrench socket comprising: a head connected to a handle and a chamber defined in said head, two plates respectively connected to two sides of said head and closing said chamber, each plate having a first hole defined therethrough, a first engaging rod and a second engaging rod respectively extending through said two first holes in said two plates, a first toothed disk connected to said first engaging rod and a second toothed disk connected to said second engaging rod, a spring connected between said first toothed disk and said second toothed disk, a pawl member pivotally received in said chamber and engaged with said first toothed disk and said second toothed disk, a first passage defined through said first engaging rod and said first toothed disk, a second passage defined through said second engaging rod and said second toothed disk, a first ball movably engaged with a side of said first engaging rod and a second ball movably engaged with a side of said second engaging rod, and a release pin movably inserted in said first passage and said second passage, said release pin having a first notch and a second notch for respectively receiving said first ball and said second ball. ### Claim 2 (depends on 1) The socket wrench as claimed in claim 1, wherein said first toothed disk has a first recess defined in an side opposite to said first engaging rod and said second toothed disk has a second recess defined in an side opposite to said second engaging rod, said spring engaged between said first recess and said second recess. ### Claim 3 (depends on 1) The socket wrench as claimed in claim 1 further comprising a frame pivotally received in said chamber and having a first flange and a second flange extending therefrom, said first flange having a slot and said second flange having a split plate, an aperture defined in said frame and located between said first flange and said second flange, a tubular member received in said aperture and biased by a spring in said aperture, said pawl member having a protrusion on a side thereof and said protrusion movably received in said slot in said first flange, a ridge extending from an end of said pawl member and said tubular member engaged with a side of said ridge. ### Claim 4 (depends on 3) The socket wrench as claimed in claim 3 further comprising a lever connected to said frame and one of said two plates having a second hole through which said lever extends. ### Claim 5 A socket wrench comprising: a head connected to a handle and a chamber defined in said head, two plates respectively connected to two sides of said head and closing said chamber, each plate having a first hole defined therethrough, a first engaging rod and a second engaging rod respectively extending through said two first holes in said two plates, a first disk connected to said first engaging rod and a second disk connected to said second engaging rod, a spring connected between said first disk and said second disk, said second disk having a toothed outer periphery, a frame pivotally received in said chamber and having a first flange and a second flange extending therefrom, said first flange having a slot and said second flange having a split plate, an aperture defined in said frame and located between said first flange and said second flange, a tubular member received in said aperture and biased by a spring in said aperture, a pawl member pivotally received in said chamber and engaged with said toothed outer periphery of said second disk, said pawl member having a protrusion on a side thereof and said protrusion movably received in said slot in said first flange, a ridge extending from an end of said pawl member and said tubular member engaged with a side of said ridge, a recess defined in a side of said second disk and located opposite to said second engaging rod, said first disk securely engaged with said recess in said second disk, a first passage defined through said first engaging rod and said first disk, a second passage defined through said second engaging rod and said second disk, a first ball movably engaged with a side of said first engaging rod and a second ball movably engaged with a side of said second engaging rod, and a release pin movably inserted in said first passage and said second passage, said release pin having a first notch and a second notch for respectively receiving said first ball and said second ball. ### Claim 6 (depends on 5) The socket wrench as claimed in claim 5 wherein said first disk has a toothed outer periphery and said recess in said second disk has a toothed inner periphery which is engaged with said toothed outer periphery of said first disk. ### Claim 7 (depends on 5) The socket wrench as claimed in claim 5 wherein said first disk has a polygonal outer periphery and said recess in said second disk has a polygonal inner periphery which is engaged with said polygonal outer periphery of said first disk. ### Claim 8 (depends on 5) The socket wrench as claimed in claim 5 further comprising a lever connected to said frame and one of said two plates having a second hole through which said lever extends.