Patent · US Active

Expansion bolt

US9810254B2 · kind B2 · utility

1Cited by

10References

9Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Andreas Eckstein · Landsberg am Lech, DE
Mathias Goldt · Feldkirch, AT
Marc Schaeffer · Altendorf, CH
Arjen Detmer Dijkhuis · Feldkirch, AT
Joerg Appl · Kaufering, DE

Key dates

Filing date	Jun 25, 2013
Grant date	Nov 7, 2017
Priority date	—
Expiry date	Aug 3, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4994
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An expansion bolt including an anchor bolt having an expansion section, and further including an expansion sleeve which surrounds the anchor bolt and which can be expanded by retracting the expansion section, and a spring element arranged on the anchor bolt. The spring element can be tensioned by inserting the anchor bolt into a bore hole and can retract the expansion section of the anchor bolt into the expansion sleeve when it is released. An indicator element indicates when a rated tension of the spring element is reached.

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