LandOfFree - US Patents - Listing for Fire escape, ladder, or scaffold

Fire escape – ladder – or scaffold – Stackable

Dismountable scaffolding with base plates arranged on cross...

Fire escape – ladder – or scaffold – Scaffold supported internally on shaft

Dismountable tower for interior maintenance of spherical tanks

Fire escape – ladder – or scaffold – Wall- or floor-attached

Displaceable platform movable sectionwise on a wall

Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support

Displaceable working platform with extensible boom

Fire escape – ladder – or scaffold – Ladder and platform

Dock station

Dorsal pad assembly for use with a safety harness

Dorsal pad assembly for use with a safety harness

Fire escape – ladder – or scaffold – Convertible – Ladder

Double extendible or support ladder

Fire escape – ladder – or scaffold – Self-sustaining – Connector for horizontal or diagonal brace

Double latched scaffold connector

Drag harness improvements

Drag harness improvements

Drag rescue device

Fire escape – ladder – or scaffold – Wall- or floor-attached – Wall-mounted platform – with ladder

Drawer type emergency escape

Fire escape – ladder – or scaffold – Wall- or floor-attached – Wall-mounted platform – with ladder

Drawer type emergency escape

Fire escape – ladder – or scaffold – Combined

Drill holster

Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step

Drive in manhole step

Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step

Drive-in manhole step construction

Fire escape – ladder – or scaffold – Body catcher – Sheet or net type

Driveway safety net and method

Fire escape – ladder – or scaffold – Combined

Drop over hanger for placement over an upright piece of 2" by 4"