In this April 25, 2011 photo, the Caterpillar company's logo is seen on earth moving equipment in Springfield, Ill. Heavy equipment maker Caterpillar Inc. said Friday, April 29, its first-quarter net ... more 
In this April 25, 2011 photo, the Caterpillar company's logo is seen on earth moving equipment in Springfield, Ill. Heavy equipment maker Caterpillar Inc. said Friday, April 29, its first-quarter net income more than quadrupled from last year as a growing economic recovery boosted demand for the company's farming and construction equipment. less 
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Associated Press | Photo By Seth Perlman
Fri, Apr 29, 2011 7:55 AM EDT