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:
May. 31, 1988
Filed:
Dec. 24, 1986
Applicant:
Inventor:
Tai-Hsiang Chao, Mt. Prospect, IL (US);
Assignee:
Allied-Signal Inc., Morristown, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
26417711 ; 26417712 ; 2642098 ; 425198 ; 425461 ; 425464 ;
Abstract
An extrusion die for producing multichanneled structures from an extrudable material. The die is composed of a series of pins that correspond to the shape of the channels in the structure. At one end of the pins, the area between the pins is open to define a discharge zone having the shape of the structure. At their opposite ends, the pins are connected about adjacent corners by a series of webs. Slots bordered by the pins and the webs define a series of feed passages that communicate with the discharge zone at areas of reduced width between adjacent pins.