Matches 1 - 17 out of 17


Match Document Document Title
US20100307870 TELESCOPIC LADDER  
A telescopic ladder having two mutually adjacent side rails and rungs disposed between the side rails, wherein the side rails include a plurality of substantially tubular, telescoping side rail...
US20110247897 COLLAPSIBLE LADDER  
A ladder having several collapsible ladder sections (100), each comprising two hollow ladder bars (102, 103) arranged parallel to each other and interconnected by a rung (104), where each...
US20100270106 SECURING DEVICE FOR EXTENDING LADDER  
A ladder is composed of a plurality of rung units and each unit includes two hollow tubes and a rung connected between the two hollow tubes. The hollow tubes of the rung units have gradually...
US20110192679 EXTENSION LADDER  
An extension ladder (1) comprises a plurality of ladder sections (2), connection kits (3) and transverse step beams (5). Each ladder section is a hollow rail having different caliber, which can be...
US20100044155 EXTENDABLE / RETRACTABLE LADDER  
An extendable/retractable ladder assembly includes a first stile and a second stile and a plurality of rungs extending therebetween. Each stile may comprise a plurality of columns disposed in a...
US20090050407 Locking Mechanism for a Ladder  
A locking mechanism for a collapsible ladder (1) comprising several ladder sections (5), each ladder section comprising two ladder bars (2, 3) arranged parallel to each other and interconnected at...
US20070209875 Securing device for extending ladder  
A ladder is composed of a plurality of rung units and each unit includes two hollow tubes and a rung connected between the two hollow tubes. The hollow tubes of the rung units have gradually...
US20080000723 ERGONOMIC EXTENDABLE/RETRACTABLE LADDER  
An extendable/retractable ladder assembly includes a first column and a second column, the first column nesting in the second column, and a first rung coupled to, and extending from the second...
US20140190766 TUBULAR ACCESS LADDER AND METHOD  
An access ladder includes a plurality of sections connected together to telescope between an extended position and a retracted position that has an increasing reactive force to counterbalance the...
US20110240405 Tubular access ladder and method  
An access ladder includes a plurality of sections connected together to telescope between an extended position and a retracted position that has an increasing reactive force to counterbalance the...
US20080023269 Tubular access ladder and method  
An access ladder includes a plurality of sections connected together to telescope between an extended position and a retracted position that has an increasing reactive force to counterbalance the...
US20100258379 Vehicle utility ladder  
A ladder constructed for reaching an elevated surface or object and having a bow-shaped configuration so that the reach may extend further from the base on which the footing of the ladder rests,...
US20060283665 Extension ladder with improved structure  
An extension ladder with improved structure includes a plurality of ladder sections, connection kits, locking mechanism, and transverse step portions; wherein each ladder section is a hollow rung,...
US20070084670 Access ladder with plungers  
An access ladder for accessing a ceiling from a floor. The ladder comprises a plurality of sections which telescope open and closed, and from a bottom section each section telescopes open to...
US20100133041 LADDER  
An extension ladder, including multiple ladder sections, each including a pair of pin holes, a pair of columns, and a rung, including a pair of pins, a pair of springs, a gear, a pair of gear...
US20160032648 Collapsible Ladder  
There is provided a collapsible ladder having several collapsible ladder sections, where each or at least part of the ladder sections comprises two hollow ladder bars arranged parallel to each...
US20150337597 COLLAPSIBLE LADDER ARRANGEMENT AND METHOD OF ATTACHING A WEBBING SUPPORT TO A RUNG OF THE SAME  
A collapsible ladder arrangement includes, a plurality of rungs, and at least one webbing support that is frictionally engaged with each of the plurality of rungs to resist relative movement...

Matches 1 - 17 out of 17