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1. (WO1989000552) DEFORMABLE PULP PAPER PRODUCT, ITS METHOD OF MANUFACTURE AND METHOD OF USE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000552 International Application No.: PCT/US1988/002164
Publication Date: 26.01.1989 International Filing Date: 30.06.1988
IPC:
D21J 3/00 (2006.01) ,D21J 7/00 (2006.01) ,F42B 5/188 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
J
FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MÂCHÉ
3
Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
J
FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MÂCHÉ
7
Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
42
AMMUNITION; BLASTING
B
EXPLOSIVE CHARGES, e.g. FOR BLASTING; FIREWORKS; AMMUNITION
5
Cartridge ammunition, e.g. separately-loaded propellant charges
02
Cartridges, i.e. cases with propellant charge and missile
18
Caseless ammunition; Cartridges having combustible cases
188
Manufacturing processes therefor
Applicants:
DELUCA, Peter, L. [US/US]; US
Inventors:
DELUCA, Peter, L.; US
Agent:
BIRCH, Anthony, L.; Birch, Stewart, Kolasch & Birch 301 North Washington Street P.O. Box 747 Falls Church, VA 22046, US
Priority Data:
074,67417.07.1987US
Title (EN) DEFORMABLE PULP PAPER PRODUCT, ITS METHOD OF MANUFACTURE AND METHOD OF USE
(FR) PRODUIT DE PAPIER A PATE DEFORMABLE, SON PROCEDE DE FABRICATION ET D'UTILISATION
Abstract:
(EN) A deformable molded fiber product is formed by a method of felting, pressing and drying the compressed product (37) having a uniformly spaced series of low density ridges (40) on one surface. These ridges provide the molded fiber product with sufficient flexibility so that it may be subjected to a hot swaging-like process to change its dimensions. A method of forming detents by hot pressing is also shown. The process is particularly useful in forming combustible nitrocellulose shell casings from a single pulp molding operation.
(FR) On obtient un produit fibreux moulé déformable selon un procédé consistant à feutrer, presser et sécher le produit comprimé (37) comportant une série d'arêtes (40) de faible densité, espacées uniformément sur une surface. Ces arêtes confèrent au produit fibreux moulé une souplesse suffisante, de sorte qu'on peut le soumettre à un procédé analogue à l'estampage à chaud, afin de modifier ses dimensions. Un procédé permettant de réaliser des détentes d'arrêt par pressage à chaud est également décrit. Ce procédé est particulièrement utile pour former des chemises combustibles en nitrocellulose à partir d'une seule opération de moulage de pâte.
Designated States: BR, JP, KR
European Patent Office (BE, DE, FR, GB, IT)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0324026KR1019890701504