Matches 1 - 4 out of 4
Match Document Document Title
6988953 Obstacle on a bowling lane  
The invention relates to an obstacle on a bowling lane for keeping the bowling ball on a single bowling lane. The obstacle comprises at least one obstacle element which is arranged to be movable...
5380251 Bowling alley bumper system and method  
A bowling alley bumper system and method selectively guards against a bowling ball rolling into a gutter. A bungee cord extends along each side edge of a bowling alley lane and in a first position...
EP0286683B1 HYDRAULIC PILOT TYPE DIRECTION CONTROL VALVE  
Abstract of EP0286683 The hydraulic pilot type direction control valve has a block (39) defining a hydraulic pilot operation section (32), and one or more pilot hydraulic chamber (40,41) in this...
4832082 Hydraulic pilot operated directional control valve  
A hydraulic pilot operated directional control valve (30; 60; 70) in which at least one pilot hydraulic pressure chamber (40, 41; 76) is formed within a block (39; 64; 75) of a hydraulic pilot...
Matches 1 - 4 out of 4