Patent · US Active

Friction bolt assembly

US10066483B2 · kind B2 · utility

1Cited by

38References

23Claims

0Family size

Assignee

DYWIDAG-SYSTEMS INTERNATIONAL PTY LIMITED · AU

Inventors

David W. Evans · Signal Hill, US
Derek Hird · Newcastle, AU

Key dates

Filing date	Jul 29, 2014
Grant date	Sep 4, 2018
Priority date	—
Expiry date	Jul 29, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16B13/0858
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A friction bolt assembly has a tubular friction bolt body defining a cavity and having a split. A rod extends through the cavity. An expansion element is mounted on the rod at or toward the rod leading end and protrudes through the friction bolt body leading end. The expansion element has an engagement surface tapering toward the rod trailing end. A drive head is mounted on the rod at or adjacent the rod trailing end. The rod is actuatable by rotation of the drive head to draw the expansion element toward the friction bolt body trailing end such that the engagement surface engages the friction bolt body, radially outwardly deforming the friction bolt body.

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