Matches 1 - 10 out of 10


Match Document Document Title
8413764 Ladder safety device, systems and methods of arresting falls from ladders  
A ladder safety device, systems and methods of arresting falls from ladders are provided. The ladder safety device includes a safety guide that extends along the length of an extension ladder. The...
8251177 Collapsible access tower  
A collapsible access tower has a chassis 10 supporting a pair of road wheels 11 and outriggers 16,17 to impart stability when in use, and a pair of extensible multi-section columns 26,50 carrying...
6298945 Firefighters' remote roof venting apparatus  
A roof venting apparatus is mounted to a firefighting vehicle's aerial extension ladder, where a semi-cylindrical, double-pointed lance is dropped and raised onto and through the roof of a burning...
5368317 Fire truck torque box chassis frame  
A torque box chassis frame for firefighting vehicles or the like constituting a platform for extendible aerial ladders. The vehicle torque box chassis frame includes elongated lower and upper...
4852690 Aerial ladder tower with pretensioned truss members  
In a ladder tower having multiple telescoping sections, each section includes a pair of longitudinally extending, laterally spaced apart truss members and a plurality of longitudinally spaced...
4396093 Ladder or boom extension system  
A ladder or boom extension system includes a base section, at least one movable section in telescoping arrangement with the base section, and a piston rod fixedly connected longitudinally of the...
4094381 Aerial extension ladder  
A truck mounted telescopically extensible ladder is rotatably connected to a turret and pivoted about an elevation cylinder. A double acting-double end hydraulic cylinder, mounted in the base...
3966018 Working platform lifting apparatus for aerial ladder truck  
A working platform lifting apparatus for an aerial ladder truck, wherein the working platform movable up and down along the ladder is arranged so that it does not interfere with the extension and...
3966017 Working range indicating device for aerial ladder truck  
A working range indicating device for an aerial ladder truck is arranged so that the variable length and vertical angle of the ladder are mechanically detected and the detected values are...
3921758 Aerial ladder truck  
There is provided an aerial ladder truck having suitable means whereby obstacles such as ice and snow to the rolling movement of the ladder extending and contracting rollers and lifter raising and...

Matches 1 - 10 out of 10