Patent · US Expired

Accident prevention system for machines having one or more movable components

US4364151A · kind A · utility

4Cited by

3References

9Claims

0Family size

Assignee

Trutzschler GmbH & Co. KG · DE

Inventors

Wolfgang Beneke · Wittlich, DE
Paul Teichmann · Mönchengladbach, DE
Wolfgang Schubert · Karup, DK

Key dates

Filing date	Jul 22, 1980
Grant date	Dec 21, 1982
Priority date	—
Expiry date	Jul 22, 2000

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T70/7062
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An accident prevention system for machines having one or more movable components, such as rotatable components, has a cover by means of which access may be had to the movable component and which can be moved to an open position. A latching arrangement normally holds the cover in closed position. An electric circuit is provided including a source of electric energy, a normally open switch and an electrically energizable actuating element which can deactivate the latching arrangement. A detector senses movement of the movable component and, when it determines that the movable component is stationary, completes the electric circuit up to the switch so that when the switch is subsequently operated, the actuating element is actuated and disengages the latching arrangement to permit the cover to be opened.

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