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.

Date of Patent:
Dec. 28, 1999

Filed:

Sep. 02, 1997
Applicant:
Inventor:

Stephen K Stark, Wilmington, DE (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
442199 ; 428388 ; 428422 ; 428370 ; 57244 ; 57245 ; 57249 ; 442189 ; 442191 ; 442200 ; 442201 ; 442202 ;
Abstract

An improved composite material of high temperature and chemical resistant material and polytetrafluoroethylene (PTFE) is provided. The composite material incorporates a coherent strand of commingled filaments of fiberglass and PTFE which is far more resistant to flex, abrasion, and chemical attack than conventional materials. Preferably filaments of expanded PTFE tow yarn and filaments of PTFE are combined through a process of air-jet texturing. Fabrics made from the composite fibers are combined with thermosetting phenolic or epoxy resins to produce pleated cartridge filter elements exhibiting superior performance in high temperature and corrosive environments.


Find Patent Forward Citations

Stark, Stephen. (1999). Filter material and cartridge filters made therefrom (U.S. Patent No. 6008146). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6008146

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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