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:
Oct. 14, 2008
Filed:
Jun. 14, 2006
John P. O'brien, Pawcatuck, CT (US);
John P. O'Brien, Pawcatuck, CT (US);
Detotec North America, Inc., Sterling, CT (US);
Abstract
A small diameter shock tube of unique internal surface configuration such that the powder loading per meter of tubing can be higher than achieved with conventional shock tube. The outside diameter of the tube is less than 0.10″, preferably 0.085″ with inner and outer layers of different polymeric material bonded together in a coextrusion process. The inside surface of the shock tube has radially inwardly projecting ribs or protuberances that result in an increase of the internal perphi of the inner surface cross section achieving a 30% increase so that powder loading per meter of the tube can be kept in a safe range.