Patent · US Active

Apparatus and process for automatic, continuous production of preforms

US8764921B2 · kind B2 · utility

0Cited by

5References

15Claims

0Family size

Assignee

AIRBUS HELICOPTERS DEUTSCHLAND GMBH · DE

Inventors

Christian Weimer · Munich, DE
Frank Weiland · Birkenfeld, DE

Key dates

Filing date	Sep 15, 2011
Grant date	Jul 1, 2014
Priority date	—
Expiry date	Jul 16, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/1317
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An apparatus and a process for automatic, continuous production of preforms from dry fabrics containing a thermoplastic binder element by feeding individual layers (7-9) of dry fabrics towards an ultrasonic unit (13), applying ultrasonic energy from said ultrasonic unit (13) to said more than one layers (7-9) of dry fabrics applying pressure to said more than one layers (7-9) of dry fabrics containing a thermoplastic binder element while the binder element is activated by means of said ultrasonic energy in said ultrasonic unit (13), to create a consolidated, stiff laminate (18) and cutting said consolidated, stiff laminate (18) to a preform.

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