  We present a new class of exact inflationary solutions for the evolution of a
universe with spatial curvature, filled with a perfect fluid, a scalar field
with potential $V_{\pm}(\phi)=\lambda(\phi^2\pm\delta^2)^2$ and a cosmological
constant $\Lambda$. With the $V_+(\phi)$ potential and a negative cosmological
constant, the scale factor experiments a graceful exit.
  We give a brief discussion about the physical meaning of the solutions.
