Patent · US Expired

Screw retention device

US5711644A · kind A · utility

5Cited by

3References

12Claims

0Family size

Assignee

Asea Brown Boveri, S.A. · CH

Inventors

Gunter Regnath · Waldshut-Tiengen, DE
Herbert Senn · Solothurn, CH

Key dates

Filing date	Sep 5, 1996
Grant date	Jan 27, 1998
Priority date	—
Expiry date	Sep 5, 2016

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16B5/08
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

In a screw retention device for a screw (1) by means of which a first component (2a) and a second component (2b) are braced, a plain washer (5b) bears positively on the first component (2a) and is likewise braced by means of the head of the screw (1) on this first component (2a). A retaining washer (5a) is connected positively to the head of the screw (1), and the retaining washer (5a) is connected to the plain washer (5b) by means of a welding bead (4).

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