6. Borrowings

Borrowings consist of the following:

	September 30, 2011			December 31, 2010
6.50% 10-year notes due February 15, 2011	$	-		$	399,986
4.875% 10-year notes due October 15, 2015		299,195			299,047
5.45% 10-year notes due March 15, 2018		347,856			347,608
4.30% 10-year notes due March 1, 2021		449,754			-
6.60% 30-year notes due March 15, 2038		247,661			247,595
5.375% 30-year notes due March 1, 2041		345,312			-
6.65% 30-year debentures due June 1, 2028		199,405			199,379
5.375% 30-year debentures due October 15, 2035		296,168			296,048
Other		1,680			2,813
Total long-term debt		2,187,031			1,792,476
Less current installments		(559	)		(1,590	)
	$	2,186,472		$	1,790,886

On February 22, 2011, the Company issued $450 million of 4.30% Notes due 2021 and $350 million of 5.375% Notes due 2041. The proceeds of $788,971 from the sale of the notes, net of discounts and issuance costs, were used to repay commercial paper, including commercial paper issued to repay the Company's $400 million of 6.50% notes, which matured February 15, 2011, and for other general corporate purposes, including the acquisition of Harbison-Fischer. The new notes are redeemable at the option of Dover in whole or in part at any time at a redemption price that includes a make-whole premium, with accrued interest to the redemption date.

At December 31, 2010, notes payable and current maturities of long-term debt within the Unaudited Condensed Consolidated Balance Sheet included commercial paper of $15,000. There was no commercial paper outstanding at September 30, 2011.

The Company maintains a $1 billion unsecured revolving credit facility which expires on November 9, 2012. The Company primarily uses this facility as liquidity back-up for its commercial paper program and has not drawn down any loans under the $1 billion facility and does not anticipate doing so. The Company generally uses commercial paper borrowings for general corporate purposes, funding of acquisitions and the repurchases of its common stock.

Interest expense for the three months ended September 30, 2011 and 2010 was $31,747 and $28,812, respectively. For the nine months ended September 30, 2011 and 2010, interest expense was $93,928 and $86,654, respectively. Interest income for the three months ended September 30, 2011 and 2010 was $1,699 and $2,477, respectively. For the nine months ended September 30, 2011 and 2010, interest income was $7,460 and $6,208, respectively.