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:
Dec. 26, 2006
Filed:
Apr. 01, 2003
David D. Bennett, Clinton, WA (US);
Michael E. Ernst, Snohomish, WA (US);
Randall P. Keller, Snohomish, WA (US);
Douglas S. York, Langley, WA (US);
David D. Bennett, Clinton, WA (US);
Michael E. Ernst, Snohomish, WA (US);
Randall P. Keller, Snohomish, WA (US);
Douglas S. York, Langley, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
A squib firing device is constructed to test and fire a squib load being applied to the squib firing device. A power supply of the squib firing device conditionally stores and discharges a squib firing power, which is a function of an analog OR of a first voltage from an external power source and a second voltage from a battery source of the squib firing device. When the squib firing power is being stored by the power supply, the squib firing device establishes a flow of a squib testing current through the applied squib load to thereby detect a resistance of squib load. When the squib firing power is being discharged by the power supply, the squib firing device establishes and regulates a flow of a squib firing current through the applied squib load to thereby fire squib load.