| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 182108000 | Terminal foot or shoe | 31 |
| 20080223657 | Ladder Boot - The present invention is a tool or apparatus relating to the safety of an individual using a ladder. The apparatus is simple in design and use being crafted of a single piece of metal shaped into a three sided open ended box. The middle side being extended into a point to be inserted into the ground. In the preferred form, it is used in a pair or set of two, positioned at the base of a ladder, one at each foot. The apparatus need not be attached to the ladder by any means, merely inserted into the ground surrounding the foot so as to prevent the foot from slipping or “kicking” out and causing the ladder to slip. | 09-18-2008 |
| 20080314682 | Ladder stabilizing brace - A ladder stabilizing brace is attachable to respective ladder stiles for laterally stabilizing the ladder from tipping. Each stabilizer includes a body channel affixable to one of the ladder stiles. A stabilizer base has a first end pivotally affixed to a bottom end of the body channel such that the stabilizer base pivots between a stowed position in vertical parallel registration with the body channel to a deployed position extending outwardly from said body channel. An adjustable center brace for locking the stabilizer base in its deployed position extends between an upper end of the body channel and a second end of the stabilizer base opposite from the first end. | 12-25-2008 |
| 20100012428 | END COVER FOR A LADDER RAIL - An end cover for a rail of a ladder has a body having a front and a back and a first side and a second side and a top and a bottom, a hole formed in the body adjacent the back and the top, a tread affixed to the front, at least one pocket formed is the bottom of the body for accommodating an end of the rail of the ladder, and a groove formed in the body that extends from the bottom to the top. A central planar portion extends downwardly from the bottom of the body. The tread is formed of an elastomeric material. The tread has gripper sections that extend outwardly from the front of a body. | 01-21-2010 |
| 20100133041 | 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 racks, and a pair of mounting rings, wherein the columns of adjacent ladder sections are fit with each other, diameters of the columns of the ladder sections increase from the top to the bottom, the pin holes are disposed on the columns, and operate to receive the pins, the pins are coaxial, the gear is disposed on a side wall of the rung and engaged with the gear rack, one end surface of the gear sticks out from the side wall of the rung, a key hole is disposed on the end surface of the gear, the mounting ring operates to fix the pin, and the spring is contacted with the pin. | 06-03-2010 |
| 20100163340 | ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM - A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed. | 07-01-2010 |
| 20100252364 | COLLAPSIBLE SAFE LADDER - A ladder system is disclosed which allows for stabilizing a ladder, on multiple surfaces, without the need for a second person or a great deal of setup time. The collapsible ladder system includes a larger ladder section and a smaller ladder strut section that is pivotally connected at a point which is at or below the midpoint of the larger ladder section. The larger ladder section and smaller ladder strut section are connected by a rigid adjustable linkage, or spreader, at a point that is below the pivotable connection. The ladder further includes a means for stability on a variety of surfaces. At the ground contacting point, the point where the ladder side rail ends and the ground meet, there are adjustable gripping feet, which can be independently or in combination vertically or angularly adjusted for maximum stability. | 10-07-2010 |
| 20110017548 | COLLAPSIBLE SAFE LADDER - A ladder system is disclosed which allows for stabilizing a ladder, on multiple surfaces, without the need for a second person or a great deal of setup time. The collapsible ladder system includes a larger ladder section and a smaller ladder strut section that is pivotally connected at a point which is at or below the midpoint of the larger ladder section. The larger ladder section and smaller ladder strut section are connected by a rigid adjustable linkage, or spreader, at a point that is below the pivotable connection. The ladder further includes a means for stability on a variety of surfaces. At the ground contacting point, the point where the ladder side rail ends and the ground meet, there are adjustable gripping feet, which can be independently or in combination vertically or angularly adjusted for maximum stability. | 01-27-2011 |
| 20110048854 | PROTECTIVE COVER FOR LADDER ENDS - The present invention is directed toward a protective cover adapted for covering the end of a ladder leg in order to prevent damage to buildings or other structures when the ladder is in use. In addition, a cover with non-skid properties is disclosed, such that the device can be used to prevent a ladder from slipping against the ground or a structure and causing injury to a user or property. | 03-03-2011 |
| 20110192679 | EXTENSION LADDER - An extension ladder ( | 08-11-2011 |
| 20110315477 | ELECTROADHESION DEVICE FOR IMPROVING EXTENSION LADDER STABILITY - A method of stabilizing a ladder is provided by attaching one or more electroadhesive devices to an attachment point on the ladder and contacting the device to a surface such as a wall or the floor. The electrostatic force achieved by applying a voltage difference in the device provides decreased ladder slip angles or increased shear forces required to create ladder slippage thereby improving ladder stability. | 12-29-2011 |
| 20120247871 | 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, the ladder being configured to reach areas such as the roof of a vehicle. | 10-04-2012 |
| 20130037350 | LIGHTWEIGHT LADDER - A foldable ladder moveable between a folded position and an unfolded position, wherein the ladder can have a two support members, each with an inner surface. Grooves can be disposed in each inner surface. When the foldable ladder is in the folded position, a portion of each groove of one of the support members can be aligned with a portion of at least one of the grooves of the other support member. The ladder can have a rungs secured in the grooves to secure the support members together. Each rung can be pivotable to move the ladder between the folded position and the unfolded position. When the ladder is in the unfolded position, the rungs can extend perpendicular to the support members. When the ladder is in the folded position, each rung can rest within two of the grooves; thereby allowing the support members to engage together. | 02-14-2013 |
| 20130118833 | ADJUSTABLE LADDERS AND RELATED METHODS - The present invention relates to ladders and, more particularly, various configurations of ladders including straight and extension ladders, as well as to methods relating to the use and manufacture of such ladders. In accordance with one embodiment of the present invention, a ladder is provided that includes a first pair of spaced apart rails and a plurality of rungs extending between and coupled to the first pair of spaced apart rails. The ladder also includes a pair of lateral support members, wherein each support member is selectively displaceable in a lateral direction relative to an associated rail. Additionally, the ladder includes a pair of adjustable legs, each leg having a first end slidably coupled to an associated rail of the first pair of spaced apart rails and being slidably coupled to an associated lateral support member. | 05-16-2013 |
| 20130161127 | ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM ACCESSORIES - A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. In one embodiment, a removable platform converts the segmented ladder system into a bus assault ladder/platform. Another preferred embodiment includes a bridge conversion kit. Yet another preferred embodiment includes a stretcher cover. When none of the bus assault platform, the bridge conversion kit, or the stretcher cover are needed, the ladder can be used as normal, or stored in a carry bag. | 06-27-2013 |
| 20140202793 | ADJUSTABLE LADDERS AND RELATED COMPONENTS - Adjustable ladders may include a pair of side rails having a plurality of rungs extending therebetween, and a pair of adjustable legs associated with the side rails. A pair of swing arms may include a first end pivotally coupled with a side rail, or a bracket associated with the side rail, as well as a second end pivotally coupled with an adjustable leg. The swing arm may be configured as a nonlinear structure. In one embodiment, the swing arm may include a first section that extends from a second section at a defined angle. The first and second sections may exhibit different lengths. Adjustment mechanisms may be pivotally coupled with an upper end of the adjustable legs. In one embodiment, the adjustment mechanisms may be configured such that, when actuated, they may be displaced in one direction while resisting displacement in a second, opposite direction. | 07-24-2014 |
| 20140231171 | LEVELING LEG FOR A LADDER - A rolling ladder includes opposing side members between which a plurality of treads are disposed at predetermined locations to define a ladder. The ladder further includes a support structure coupled to the ladder and including a front wheel support coupled to a plurality of rolling devices. A leg assembly has a user-adjustable length leg, and is coupled to the support structure. A lock mechanism is responsive to user actuation and is configured to move the rolling devices from a rolling position to a retracted position, wherein the leg of the leg assembly contacts the floor to thereby inhibit movement of the ladder. | 08-21-2014 |
| 20140238777 | LADDER COVER APPARATUS AND METHOD OF SETTING UP A LADDER - A ladder cover constructed from a thick cloth material, such as cotton, aligned in a generally straight orientation with no bends or turns. The cover is made up of three general regions: a body portion which is large enough to encompass most or all ladder legs; a base section for elastically securing the cover to a ladder leg; and a gripping section generally comprised of a polyvinyl chloride (PVC) coating applied to the capped end of the body portion of the cover. The cover is applied to the ends of a ladder to protect walls and floor surfaces while increasing the grip of the ladder legs against those surfaces. The cover is easily washable, storable, and reusable. | 08-28-2014 |
| 182109000 | Diverse ground-engaging means | 3 |
| 20140138184 | SECURE FOOT LADDER - A secure foot ladder comprising a ladder, where the ladder includes a pair of side rails, a plurality of rungs between the rails, and a pair of feet attached to a bottom of each rail; a plurality of spikes positioned within each foot, where the plurality of spikes extend from a bottom of each foot to engage the ground; and an actuator within the side rails, where the actuator extends and retracts the plurality of spikes. The spikes' length depends on the type of surface upon which the ladder is placed, where a long spike is used on soft surfaces and a short spike or no spikes are used on a hard surface. | 05-22-2014 |
| 20140216850 | Mount System - A mount system includes two different friction enhancing surfaces that attach to at least one leg of a support structure and form a stable surface area for inhibiting movement by the leg. A mount joins with a terminal end of the leg. The mount includes a first surface having at least one protrusion configured to penetrate the ground surface. The mount also includes a second surface having a frictional surface. The surfaces are reversible, whereby either the first or second surface engages the ground surface depending on the type of ground surface. The mount has a larger surface area than the terminal end to provide additional frictional forces for inhibiting movement of the support structure. A bracket overlays the mount and engages the terminal end. A fastener, such as a quarter turn cam lock enables efficient and fast removal of the bracket for reversing the surfaces. | 08-07-2014 |
| 20150376947 | Non-slip ladder base device - A ladder base device having a base platform and a pair of socket-like receptacles for receiving the ends of a pair of ladder rails. The receptacles are pivotally attached to the platform and the platform is reversible with different surfaces for frictional engagement with different types of ground or floor surfaces on each side. | 12-31-2015 |
| 182110000 | Suction cup | 1 |
| 20130048427 | Portable ladder - A portable ladder is provided having at the base end of at least one of the uprights thereof a plurality of sucker elements, adapted to adhere strongly to the ground following the formation of vacuum beneath the elements. The ladder has at the base of the at least one upright a structure, which includes a cap, at the concave surface of the cap facing towards the surface on which the ladder rests there is fixed the plurality of sucker elements. | 02-28-2013 |
| 182111000 | Pivotal component | 10 |
| 20080230316 | SELF-ADJUSTING LADDER LEVELING DEVICE - A self-adjusting ladder leveling device includes a first locking member attached to the ladder, and a second locking member movably associated with the first locking member. First and second legs extend outwardly from the second locking member toward a supporting surface. The second locking member slidably moves in relation to the first locking member as either the first or second leg is engaged with the surface. When both the first and second legs are engaged with the surface, the second locking member is moved into locked engagement with the first locking member, so as to maintain the ladder in a level state. When the first and/or second leg is removed from engagement with the supporting surface, the second locking member is released and is free to move with respect to the first locking member again. | 09-25-2008 |
| 20090159367 | Side-Security-Ladder - The Side-Security-Ladder | 06-25-2009 |
| 20090242328 | STABILIZING MECHANISM FOR RIGID FIXED AND EXTENSION LADDERS - A stabilizing mechanism for rigid fixed and extension ladders that includes an anchorage assembly removably mounted to one of the rungs of a ladder. A linkage assembly is mounted to the anchorage assembly and it supports a rigid elongated member that in turn pivotally supports two arched arm members that are selectively locked in place by a locking assembly that can be remotely actuated. The arm members embrace a support member thereby providing a firm engagement of the ladder assembly to the support member. A release mechanism remotely disengages the ladder from the support member once a user descends. | 10-01-2009 |
| 20100258379 | 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, the ladder being configured to reach areas such as the roof of a vehicle. | 10-14-2010 |
| 20110127110 | LADDER SAFETY ACCESSORY KIT - A ladder safety accessory kit ( | 06-02-2011 |
| 20120175189 | LADDER SAFELY SHOE SYSTEMS - Step Ladder Safely Shoe provides security and stability for the base of a ladder and can prevent users from potentially falling off of an unstable ladder. This device acts as shoes (surface-area increasers) for the feet of a step ladder by providing four supportive units into which the ladder's feet can be placed. By using this product, individuals may be able to use a ladder without needing a second person to hold and stabilize the ladder, as well as allowing individuals to easily use the ladder with minimal effort on wet or soft ground. | 07-12-2012 |
| 20120199416 | LADDER STABILIZER - A ladder stabilizer having a base plate that engages with a lower portion of the ladder and having a tire receiving portion at an end portion of the base plate. The weight of a vehicle tire on the tire receiving portion provides increased stability to the base plate of the ladder stabilizer. The tire receiving portion can be moved to either side of the base plate and can have a base plate-engaging mechanism on its bottom surface to couple with a mating surface of the base plate. The ladder can be retained by a leg retainer, rung retainer, or other retaining member that is coupled to a ladder retainer attachment portion of the base plate. Preferably, the ladder retainer mechanism includes some type of fastener or tensioning mechanism to secure the lower portion of the ladder to the base plate. | 08-09-2012 |
| 20140166398 | Stabilized Hunting Stand - The present invention provides a stabilizer for a hunting stand, which is suitable for use with a ladder stand or a freestanding hunting stand. The stabilizer incorporates two upright members, longitudinal rungs, and a female threaded member joined to the base section of each upright. The stabilizer levels the stand by the use of threaded rods that are inserted into the upright members and are rotatable in the female threaded member. Support plates are hinged at the base of each threaded rod. Typically the stabilizer includes a connector atop each upright, such as connection tubes or swaged connection sections. A stabilizer for and freestanding hunting stand incorporates a first upright member with a connector such as a connection tube or a swaged section at an upper end of the upright member with a nut at the lower end. A threaded rod is rotatable in the nut and is connected to a support plate. Ladder stands incorporating the stabilizer are also disclosed. The stabilizer improves safety stability are to reduce injuries from falling from an unstable stand and when propping up the stands. | 06-19-2014 |
| 20140291072 | LADDER LEVELER APPARATUS - A ladder includes a leveler engages a bottom of each side rail for 1) causing extendable legs to move to a level ground-engaging position, 2) causing the legs to lock when both legs engage the ground, and 3) causing the extendable legs to move to a centered/retracted position when lifted from the ground. The leveler includes pawls, links, pinions, and a shaft forming a four-bar linkage for selectively moving the pawls inward to the disengaged position when the pinion and shaft are each freely rotatable, but selectively moving the pawl outward into locking engagement when the shaft resists movement due to ground engagement by both legs. The leveler can be constructed to attach to an inside of the side rails, thus facilitating pre-assembly. | 10-02-2014 |
| 20160053539 | LADDER STABILIZER - A ladder stabilizer having a base plate that engages with a lower portion of the ladder and having a tire receiving portion at an end portion of the base plate. The weight of a vehicle tire on the tire receiving portion provides increased stability to the base plate of the ladder stabilizer. The tire receiving portion can be moved to either side of the base plate and can have a base plate-engaging mechanism on its bottom surface to couple with a mating surface of the base plate. The ladder can be retained by a leg retainer, rung retainer, or other retaining member that is coupled to a ladder retainer attachment portion of the base plate. Preferably, the ladder retainer mechanism includes some type of fastener or tensioning mechanism to secure the lower portion of the ladder to the base plate. | 02-25-2016 |
