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:
Mar. 10, 1998
Filed:
Oct. 25, 1995
Mario E Abreu, Poway, CA (US);
Douglas C Rawlins, Murrieta, CA (US);
Virendra M Sood, Encinitas, CA (US);
James B Sperling, El Cajon, CA (US);
Solar Turbines Incorporated, San Diego, CA (US);
Abstract
The present method of making a workpiece having a plurality of holes defined therein includes the plurality of holes defining a specific flow at a specific flow condition. The method of making the plurality of holes includes generally the steps of forming a first portion of holes having a first preestablished hole cross-sectional area being defined by a predetermined flow characteristic value of the first preestablished hole cross-sectional area at the specific flow condition; a cavity being formed; positioning a flow establishing device in communication with the cavity; positioning a flow measuring device in operative relationship with the flow establishing device; actuating the flow establishing device and establishing a flow through the first portion of holes; monitoring the flow; comparing the flow with the predetermined flow characteristic value; determining a flow requirement of a second portion of holes based on an accumulative predetermined flow characteristic value of the first and second portions of holes and the measured flow of the first portion of holes; conforming the forming device to a second predetermined hole cross-sectional area and forming the second portion of said plurality of holes having the second predetermined hole cross-sectional area; and repeating the aforementioned steps successively for the remaining portions of the plurality of holes until the required number of holes in the workpiece have been formed.