Patent · US Active

Load-indicating washer

US9316248B2 · kind B2 · utility

5Cited by

7References

9Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

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

Key dates

Filing date	Aug 24, 2011
Grant date	Apr 19, 2016
Priority date	—
Expiry date	Jan 17, 2032

Classification

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

Abstract

A direct tension indicator (2), including a base element (11) and a cover element (13) that is arranged on the base element (11) and at least one indicator element (4) that is arranged between the base element (11) and the cover element (13) in order to display an axial force acting between the base element and the cover element. The indicator element (4) includes a dilatant material.

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