Patent · US Expired

Undercut-engaging dowel

US6132152A · kind A · utility

26Cited by

7References

13Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Werner Kaibach · Buchloe, DE
Stefan Raber · Kaufering, DE
Hans-Jurgen Negele · Schongau, DE

Key dates

Filing date	May 25, 1999
Grant date	Oct 17, 2000
Priority date	—
Expiry date	May 25, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16B13/0858
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A dowel including an anchor rod (2; 22) having a load application element at one of its longitudinal ends and a head (3; 23), a diameter of which increases toward the free end of the anchor rod, at its opposite end, an expansion sleeve (4; 24) having a bore through which the anchor rod (2; 22) extends and a plurality of expansion tabs (5; 25) separated from each other by longitudinal slots (6; 26) and extending from a circumferential groove (7) toward the head (3; 23), the expansion tabs (5; 25) expanding radially, upon the expansion sleeve (4; 24) being displaced over the head (3; 23), and a substantially ring-shaped member (8; 28) arranged in the circumferential groove (7) and substantially filling out the circumferential groove (7; 27) in an expanded condition of the expansion tabs (5; 25).

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