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:
Apr. 22, 2008
Filed:
Nov. 14, 2005
Jerry L. Walker, Fort Worth, TX (US);
Jim Gilbert, Rio Vista, TX (US);
Jerry L. Walker, Fort Worth, TX (US);
Jim Gilbert, Rio Vista, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A perforating apparatus () includes a plurality of shaped charges () each having a case, an initiation end and a discharge end. A detonating cord () is operably associated with the initiation ends of the shaped charges (). An energy absorbing charge holder () has a gas expansion region and a detonating cord receiving area to receive the detonating cord therein (). The energy absorbing charge holder () also has a plurality of charge receiving locations that closely receive the shaped charges () therein such that upon detonation of the shaped charges (), energy is transferred from the cases of the shaped charges () to the energy absorbing charge holder (), thereby reducing fragmentation of the cases.