21.   Now executives at the San Carlos, Calif., firm are trying to pump some air back into a stock that may be unfairly deflated.

22.   Once on, air can be pumped into the chambers inside the helmet to make it fit secure to the head in every way.

23.   Sheila Byrnes squealed loudly and pumped the air as the strolled by, the green-and-orange grand marshal sash slung over his black cassock.

24.   Taped over his heart, the outside of the device resembles the tube that bicycle riders use to pump air into flat tires.

25.   The cavity contracts, pumping the air into the lungs.

26.   The heat pump takes over, taking the heat from the water and pumping heated air into the house.

27.   The heated air is pumped throughout the house via ductwork and then back to the heat source for recirculation.

28.   The patient places the cylinder over his penis and pumps the air out, drawing blood into the penis and creating an erection.

29.   The record warm wave was fostered by the Bermuda high-pressure system, which pumped warm air northward from the tropics.

30.   Then, many blacks pumped the air with their fists in victory.