Abstract: A squeeze bottle for dispensing viscous liquids of the type having a conventional opening and associated flip lid at the top thereof is provided with a second opening and associated flip lid positioned adjacent the bottom of the squeeze bottle so that the contents remaining when the bottle is nearly empty may be easily dispensed therefrom. Alternatively, the conventional top opening and flip lid may be eliminated and a single opening provided adjacent the bottom of the squeeze bottle. In another embodiment, a squeeze bottle is symmetrically configured to have flip lids of sufficient surface area at each end thereof to permit storage of the squeeze bottle on either end so that the contents may be easily dispensed from the flip lid on which the squeeze bottle rests during storage.

Abstract: A dual drive bicycle having a hand crank mechanism for applying driving power to the front wheel of the bicycle includes a stabilizer bar attached to a hand crank mechanism frame, the stabilizer bar including a chest saddle against which the rider positions the chest area of his upper body during operation of the front wheel hand crank mechanism. The force applied by the rider's upper body against the chest saddle acts to maintain forward alignment of the front wheel of the bicycle to thereby greatly improve the stability of the bicycle. In addition, the stabilizer bar and chest saddle combination provides a resistance against which the rider works while operating the front wheel hand crank mechanism.

Abstract: A main rotor head is disclosed, which is adapted for mounting on a main rotor mast of a helicopter. A main rotor mast nut is threaded onto the main rotor mast in order to fasten the main rotor head to the mast. The key feature of the invention is a nut retention means, which comprises a cup-shaped round annular disk and closely surrounds the nut, preventing separation of the main rotor head from the main rotor mast should the nut fail during flight.