The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2007
Filed:
Jan. 14, 2003
Michael D. Wood, South Bend, IN (US);
Frank Dillon, Granger, IN (US);
Richard A. Heckelsberg, Niles, MI (US);
Roger W. Holloway, North Liberty, IN (US);
Mark L. Laforest, Granger, IN (US);
Neil Murdie, South Bend, IN (US);
Charles A. Parker, Granger, IN (US);
James F. Pigford, Kingwood, TX (US);
Michael D. Wood, South Bend, IN (US);
Frank Dillon, Granger, IN (US);
Richard A. Heckelsberg, Niles, MI (US);
Roger W. Holloway, North Liberty, IN (US);
Mark L. LaForest, Granger, IN (US);
Neil Murdie, South Bend, IN (US);
Charles A. Parker, Granger, IN (US);
James F. Pigford, Kingwood, TX (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A resin transfer molding (RTM) process is disclosed for rapidly filling a fibrous preform and/or a rigid, porous body with high viscosity resin or pitch. The process is suitable for impregnated multiple porous bodies stacked in a single mold. The process uses a fibrous preform or rigid porous body which is placed into a mold matching the desired part geometry. A resin is injected into the mold at temperature and pressure. After cooling, the infiltrated component is removed from the mold. The mold is constructed from two halves fitted to form at least one mold cavity. A gate fitted with a nozzle is set into one of the mold halves, and a valve admits resin or pitch into the gate area. Venting or vacuum can be applied to the mold. The mold is held in a hydraulic press and an extruder, optionally fitted with an accumulator, supplies molten resin or pitch to the mold.