Dividend checks continue to beef up in Corporate America, as more companies jack up their distribution rates.

Let's take a closer look at some of the companies that inched their payouts higher this past week.

We'll start with Accenture (NYSE: ACN). The management consulting giant is raising its semi-annual cash dividend by 20%, to $0.45 a share. Revenue clocked in flat in Accenture's fiscal year ending in August, but net income improved to give the company the wiggle room to reward its investors.

MFA Financial (NYSE: MFA) is also giving its shareholders something to write home about. The REIT specializing in residential mortgages announced a quarterly payout of $0.225 a share, 18% ahead of its previous rate. If it's able to maintain that rate, investors will receive a chunky 11.6% yield.

Railroad operator CSX (NYSE: CSX) is also choo-choo-choosing to return more of its money to its shareowners. CSX's new quarterly disbursement is $0.26 a share, an 8% improvement.

Finally, we have Thor Industries (NYSE: THO) bringing down the hammer. The RV maker is now sending out $0.10 a share to its investors every three months, a whopping 43% payout increase. That's a notable move, because Thor's largest rival, Winnebago (NYSE: WGO), doesn't even pay a quarterly dividend.

It's encouraging to see companies improving their yields at a time when fixed-income investments are on the floor. These four companies join comfort-cooking chain Cracker Barrel Old Country Store (Nasdaq: CBRL) and filtration specialist CLARCOR (NYSE: CLC) in sending more of their money back to their shareowners in recent days.

Subscribers to the Motley Fool Income Investor newsletter can appreciate the companies sending more and more money to their investors. The newsletter singles out companies that are committed to growing their distributions, with market-thumping results.

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Longtime Fool contributor Rick Munarriz pays attention to yield signs. He does not own shares in any of the companies in this story. He is also part of the Rule Breakers newsletter research team, seeking out tomorrow's ultimate growth stocks a day early. The Fool has a disclosure policy.