Patent · US Expired

Machine for simultaneous biaxially stretching

US4200963A · kind A · utility

21Cited by

4References

3Claims

0Family size

Assignee

Firma Erwin Kampf GmbH & Co. Maschinenfabrik · DE

Inventors

Eberhard Kamfe · Wiehl, DE
Willi Schmidt · Blankenloch, DE

Key dates

Filing date	Nov 2, 1978
Grant date	May 6, 1980
Priority date	—
Expiry date	Nov 2, 1998

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C55/165
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A biaxial web stretching machine has diverging tong conveying screws and the screws are provided with double or triple threads to provide relatively high speed tong movement with a relatively low speed of screw rotation.

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