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Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.

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Class 182/178.1 - STACKABLE


Subclass of Class 182 - Fire escape, ladder, or scaffold
Definition: Device including coupling means particularly adapted to
No. of patents: 64
Last issue date: 03/20/2012


1    
NumberTitleIssue Date
8136633Modular scaffold system
A modified scaffold support post includes areas of reduced diameter, intermediate the length of the support post, having connecting rosettes secured to these reduced diameter areas. Preferably the areas of reduced diameter correspond to diameter of support tubes use...
03/20/2012
7975803Dismantlable scaffold and a railing adapter for it
The invention relates to dismantlable scaffolding comprising accessible platforms on a plurality of levels and a multitude of vertical supports carrying said platforms. Said vertical supports preferably consist of several sections which can be fixed one on top of th...
07/12/2011
7258199Modular multilevel access platform and method for erecting the same
A multilevel access platform comprising a plurality of stackable modules. Each module includes elongated column members that are generally parallel and coextensive, and a plurality of levels of elongated lateral members that extend transversely between and are conne...
08/21/2007
7228940Scaffold having a replaceable locking and securing device
A replaceable locking and securing device for securing a first member to a second member includes a replaceable bracket, a lock and a fastener. The bracket defines one opening when the bracket is operatively connected to the first member. ...
06/12/2007
7195101Facade scaffold
The scaffold has demountable elements which can be connected to one another to make up lateral frames that incorporate vertical members, flooring platforms or planks, diagonal bracing bars, and handrail poles, and is characterized in that the said lateral frames are...
03/27/2007
7188707Scaffold plank with end connector and method of making the same
A scaffold plank assembly for engagement to a scaffolding frame. The scaffold plank assembly comprises an elongate, non-metal plank defining opposed first and second ends and at least one interior cavity. Attached to respective ones of the opposed ends of the plank ...
03/13/2007
7185899Riser cart
A riser cart including a cart support frame, a first swing arm post assembly and a second swing arm post assembly. The cart support frame has a plurality of wheels rotatably attached thereto. The first swing arm post assembly is mounted to the cart support frame. Th...
03/06/2007
7077239Expandable dual tube scaffold hatch structure
The invention is a scaffold access system for use in a scaffold frame of horizontal and vertical scaffold members. The system includes double barrel scaffold horizontal member, a series of short scaffold boards, a series of long scaffold boards, a short vertical sca...
07/18/2006
7032712Scaffold with vertical supports and horizontal carriers
The invention relates to a scaffold with vertical supports arranged spaced apart next to one another and/or behind one another, with horizontal carriers arranged between adjacent vertical supports and with scaffold decks which releasably lie at their end regions on ...
04/25/2006
7017710Scaffolding
A scaffolding element used in conjunction with an upright alignment member, such as a pole. The scaffolding element having at least one connector member at each end portion thereof. The opposing connector members are oriented transversely relative to one another, su...
03/28/2006
6994187Scaffold pick-up device
A scaffold pick-up device having a vertical joint clamp which bridges a vertical scaffold joint to stiffen the bridged vertical joint, and a scaffold lift assembly, which attaches onto the top section of a vertical scaffold member and has an attachment point for a s...
02/07/2006
6971477Walkboard ledger for scaffolding
A scaffolding (10) for elevating a worker (not shown) above a floor or ground surface is disclosed. The scaffolding (10) broadly includes a pair of frames (12) and (14), cross bracing (16) coupling the frames (12,14) togethe...
12/06/2005
6953106Collapsible scaffolding tower
A collapsible scaffolding tower having four uprights arranged in two pairs, wherein each of the uprights is formed of three or more telescopically collapsible sections and rigid horizontal bars extend between the sections of the uprights in each pair to form two tel...
10/11/2005
6938730Buddy's adjustable height workhorse
The adjustable height workhorse is a height adjustable workspace for allowing a worker to easily hang sheet rock on walls at elevated heights. The workhorse provides a platform supported by a frame having a plurality of vertical posts and a plurality of horizontal h...
09/06/2005
6932195Intermediate scaffold member join
An intermediate scaffold member join comprising a top side, a first side and a second side cooperating to form a channel therebetween. The channel is sized to accept a horizontal scaffold member. The first side has a clamp for attaching to a horizontal scaffold memb...
08/23/2005
6814184High rigidity vertical column member and structure and hoist platform system
A high-rigidity structure is formed using vertical column members comprising hollow right cylinders with four integral, radially-projecting, equally-spaced flanges. The flanges have a plurality of holes for mounting structural elements along the length of the column...
11/09/2004
6779631Scaffold pick-up device
A scaffold pick-up device having a vertical joint clamp which bridges a vertical scaffold joint to stiffen the bridged vertical joint, and a scaffold lift assembly, which attaches onto the top section of a vertical scaffold member and has an attachment point for a s...
08/24/2004
6739429Corner scaffold structure
A corner scaffold structure is comprised of three vertical legs. These three legs are connected to one another at their upper distal ends by three horizontal legs which generally form a right isosceles triangle. Similarly, there are three horizontal legs connected t...
05/25/2004
6691828Scaffold stair
A scaffold stringer which is a plate and a series of tread mounts attached at substantially uniform distances along the plate, the tread mounts forming an angle with the plate, each tread mount having an associated finger projection positioned above each ...
02/17/2004
6585083Scaffold construction apparatus and method
Two ladders are connected together with cross-braces to form a scaffold. Platforms of the scaffold are supported on rungs of the ladders. A C-shaped bracket connects to the ladder legs. The bracket has an ear for connecting a brace....
07/01/2003
6578667Thrust reverser blocker door access platform
An access platform comprising a series of stackable polyurethane foam block assemblies that when properly secured to each other creates a set of steps and handholds similar to a ladder. At the top of the platform a maintenance person can stand on a nonski...
06/17/2003
6557666Modular hoarding system
A modular hoarding includes vertical posts secured to the ground. The vertical posts are spaced apart. Detachable, horizontally oriented cross-members are secured to the vertical posts. Detachable wall panels are secured to the horizontally oriented cross...
05/06/2003
6450291Frames and structures assembled by same
A fram with a support post, a first connector support member mounted at an intermediate position of the post and a second connector support member or members mounted at an upper or lower position, or both the upper and the lower positions, of the support ...
09/17/2002
6443262Tubular frame scaffolding
A tubular frame scaffolding system including base pads, vertical trusses, work platforms, access ladders, diagonal support braces, horizontal guard rails, intermediate guard rail panels, top guard rail panels, top guard rail posts, and toeboards. The guar...
09/03/2002
6435305Stackable step stool
A stackable step stool having a platform and obtusely angled legs where the design of the stackable step stool allows the stackable step stools to be stacked on top of one another in an alternating manner. The platform is typically rectangular with rounde...
08/20/2002
6415891Scaffold stair
A scaffold stringer which is plate and a series of tread mounts attached at substantially uniform distances along the plate, the tread mounts forming an angle with the plate, each tread mount having an associated finger projection positioned above each tr...
07/09/2002
6408587Structural members and associated parts
A structural member, e.g. a truss for erection of temporary structures, comprises a number of elongate elements disposed in spaced generally parallel relationship to one another with transversely extending elements therebetween, and an element extending l...
06/25/2002
6405830Scaffold toeboard system
A scaffold toeboard system for use on a scaffold where the system includes a bracket attachable to a horizontal scaffold frame member, a first sleeve attached to the bracket, where the sleeve has at least one slot, and a toeboard having two ends, with eac...
06/18/2002
6354402Plank securing scaffolding assembly
Platform assemblies may be built up using a substantial number of inverted U-shaped vertical supports with platform hold down members that hold the platforms in place, thus avoiding slippage or pilferage. The hold down members form a unitary structure wit...
03/12/2002
6223856Dismountable scaffolding with base plates arranged on cross struts
The invention relates to a dismountable scaffolding with vertical struts and horizontal struts. A base plate extends between said struts and is provided with hook-shaped end fittings on each front face. Said base plate can be placed on a rail section in s...
05/01/2001
6220391Scaffolding structure
A scaffolding structure is configured to provide dual walk-through areas with each walk-through area being at different elevations of a scaffolding section. Each section of the scaffolding structure includes two end frames with each end frame having a for...
04/24/2001
6062400Split beam ergonomic pick rack
A split beam ergonomic pick rack which embodies a pallet storage bay structure adapted to accommodate at least two pallets in a laterally spaced relationship one with respect to the other whereby there is incorporated a worker access opening therebetween ...
05/16/2000
5980160Apparatus and method for a modular lifting and shoring system
The present invention provides a plurality of block-like building elements which may be bolted to each other to form a variety of support structures without the use of heavy hoisting equipment. Some of the building elements have a generally U-shaped appea...
11/09/1999
5941345Scaffold cross member and modular support assembly
A cross member which joins two support columns to form an improved scaffold support assembly. The cross member includes an elongated tubular arm having a plate member fixedly attached thereto. The plate member has opposed ends which are slotted such that ...
08/24/1999
5901810Frame component
Scaffoldings are usually either movable or fixed. Structures usable for both are usually too bulky and complicated, and therefore not suitable for general use. The invention provides a solution because the platforms are interchangeable on the scaffolding ...
05/11/1999
5765248Shore
Disclosed is a shore which has a durability with respect to loads not only in a longitudinal direction and a lateral direction but also in a lengthwise direction, and which can be automatically folded without requiring extra work. The shore comprising a p...
06/16/1998
5701971Protective member for metal scaffold knots or joints
Protective member for metal knots or joints of scaffolds having horizontal and vertical tubular elements connected by a clamp at each knot, said protective member being made up of two parts (C1) and (C2) each of which consists of a hollow body (1) includi...
12/30/1997
5307899Pump jack scaffold
A pump jack scaffold includes a pair of extruded aluminum poles. Each pole has a rectangular cross-section. Wood is adhered to one side wall of each pole, providing a surface a jack mechanism can grip. Each of the other three side walls is extruded with a...
05/03/1994
5161909Packaging clip
A packaging clip for maintaining a first side rail of a ladder adjacent a second side rail of a ladder. The clip comprises a first portion for removably holding the first side rail and a second portion for removably holding the second side rail. The clip ...
11/10/1992
5135077Scaffolding system
A basic scaffolding tower assembly for building up, in modular fashion, a multi-level scaffolding system includes a pair of load-bearing tower panels spaced from and parallel to the building facade. The tower panels are joined together by a pair of landin...
08/04/1992
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