Patent · US Expired

Constant force socket

US7032481B2 · kind B2 · utility

9Cited by

13References

1Claims

0Family size

Assignee

Industrial Technology Research Institute · TW

Inventors

Ming Li · Shanghai, CN
Li-Hsia Lin · Taichung, TW
Mei-Chin Chou · 溪州鄉, TW

Key dates

Filing date	Nov 28, 2003
Grant date	Apr 25, 2006
Priority date	—
Expiry date	Nov 28, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25B23/1427
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A constant force socket is constructed to include a socket body, which has an inner hole at one end and a set of teeth radially disposed inside the inner hole, a ratchet wheel, which is mounted inside the inner hole of the socket body and has a tool hole at one side and a set of radially arranged teeth at an opposite side, a screw member threaded into the inner hole of the socket body, and a compression spring supported between the ratchet wheel and the screw member to force the teeth of the ratchet wheel into engagement with the teeth of the socket body.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.