Patent ID: 11897096
Assignee: nan
Field: Machine tools (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 19:
20. A socket retaining device adapted for securing a socket to an anvil of an impact tool where the anvil has an anvil hole with an anvil hole length and a first diameter and with proximal and distal ends and the socket has proximal and distal socket holes of the same first diameter that are aligned with the proximal and distal ends of the anvil hole to define proximal and distal interfaces, respectively, when the socket is seated onto the anvil, comprising:
a projecting member adapted for insertion into a least one of the socket holes and the anvil hole for securing the socket to the anvil, the projecting member having a first cross-sectional diameter that corresponds to the first diameter of the anvil and socket holes;
an O-ring that has an inside diameter and defines a plane, the O-ring adapted for stretching around the socket to hold the projecting member in place, and
a joint that connects the projecting member to the O-ring with the projecting member extending radially inward from the O-ring along the plane of the O-ring,
wherein the O-ring has a second cross-sectional diameter that is smaller than the projecting member's first cross-sectional diameter along at least part of the O-ring's circumference whereby the O-ring has increased elasticity for stretching around the socket; and
wherein the projecting member has a length that is sufficient to extend past the proximal interface with at least a portion of its full cross-sectional diameter located beyond a half-way point of the anvil hole's anvil hole length when the O-ring is stretched onto a socket of small size and sufficient to extend past the proximal interface when the O-ring is stretched onto a socket of large size.