Stackable Patents (Class 182/178.1)
  • Patent number: 9561935
    Abstract: A method in the manufacture of an elevator, in which is formed an elevator arrangement, which includes an elevator hoistway, at least one elevator unit to be moved in the elevator hoistway, said unit(s) including at least an elevator car, a movable supporting structure in the elevator hoistway above the elevator car, roping suspended from the supporting structure for supporting the aforementioned at least one elevator unit to be moved, in which method the following steps are performed: a) the elevator car is used to transport passengers and/or freight, after which b) the supporting structure is lifted in the elevator hoistway, after which c) the elevator car is used to transport passengers and/or freight. In the method, between steps a) and c), additionally a step x) is performed, in which the section of the roping is lifted, separately from the lifting of the supporting structure, higher up in the elevator hoistway.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: February 7, 2017
    Assignee: KONE CORPORATION
    Inventor: Jussi Perälä
  • Patent number: 8978822
    Abstract: The invention relates to a vertical frame made of metal, particularly a scaffolding frame, having at least one first vertical shaft (21) and a bar-shaped, horizontal transversal arm (23) extending away from the same, the shaft and arm being permanently connected to each other, having the following characteristics: a first perforated disk having a plurality of openings is permanently mounted to the shaft (21), wherein the perforated disk is disposed concentrically to the shaft (21) and surrounds the shaft (21) in a flange manner; at least one first mounting device is provided on the shaft (21) at a distance to the perforated disk for mounting a fall-protection means; the transversal arm (23) on one end thereof has a first connecting head, and on the second end thereof facing away from the first end has a second connecting head by which the transversal arm (23) can be secured, or is secured, on a second vertical shaft (21) via a second perforated disk equipped with a plurality of openings by forming a vertical
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: March 17, 2015
    Assignee: Wilhelm Layher Verwaltungs-GmbH
    Inventor: Helmut Kreller
  • Patent number: 8794381
    Abstract: A bracket (60) for securing a first kickboard (62) transversely of a second kickboard (54) comprises a socket (64) for receiving an end of the first kickboard and a clip (70) for securing the bracket to the second kickboard, the clip comprising a lateral extension (76) aligned with the longitudinal axis of the second kickboard for stabilizing the bracket thereon. Also disclosed are (1) a telescopic rail (46) for use in forming a guard or safety barrier for builders' trestles, staging, scaffolding or the like, comprising inner and outer telescopic parts (80, 82), in which the inner part is prevented from sliding free of the outer part in use; (2) a brace for stabilizing adjacent trestles; (3) a ladder support bracket; (4) removable safety rail components and (5) a longitudinal kickboard bracket attached to a trestle crossmember.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: August 5, 2014
    Assignee: Safestand Limited
    Inventor: Liam Clear
  • Patent number: 8678136
    Abstract: A tray is adapted to be attached to a scaffold, which may be achieved either through a clamp or by inserting an element into the end of a scaffold vertical member. A support structure of the tray may be affixed to a support structure, wherein the support structure is configured to provide a surface on which the user may position certain items. The tray has at least two axes of rotation with respect to the structure to which it is mounted, and the tray may be configured to be height adjustable. In one embodiment, the tray is configured specifically to support a paint container, and in another embodiment the tray is configured so that the support structure is formed as a tub.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: March 25, 2014
    Inventor: Lori Hamilton
  • Patent number: 8439166
    Abstract: A closed vertical frame for constructing a supporting frame, including at least two vertical supports disposed at a horizontal distance from each other, and at least two horizontal arms disposed at a vertical distance from each other. Each extends between the at least two vertical supports transversely to the vertical supports. A first horizontal arm is welded on both ends to a respective vertical support near the upper end thereof, and a second horizontal arm is welded on both ends likewise to these vertical supports near the lower end thereof. The vertical frame is reinforced with at least one diagonal rod extending between two vertical supports and two horizontal arms and is welded onto two vertical supports. Near the respective upper and/or lower end, a perforated disk having openings is welded to connect holding devices.
    Type: Grant
    Filed: November 8, 2008
    Date of Patent: May 14, 2013
    Assignee: Wilhelm Layher Verwaltungs-GmbH
    Inventor: Helmut Kreller
  • Publication number: 20130048430
    Abstract: A scaffolding module comprising: a frame that, when in an erected configuration, defines an interior space; and a plurality of mounting regions that allow the module to be mounted with other said scaffolding modules, wherein when so mounted, the module frames are able to be interconnected to form a support structure for one or more scaffolding platforms.
    Type: Application
    Filed: February 25, 2011
    Publication date: February 28, 2013
    Inventor: John C. Preston
  • Patent number: 8136633
    Abstract: 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 used as uprights in scaffold frames in North America (approximately 1.69 inches in outer diameter). Preferably the areas of reduced diameter are formed by swaging a tube of a larger diameter, typically approximately 1.90 inches. The modified support post is advantageously used with scaffold frames with connecting rosettes appropriately positioned on the uprights of the scaffold frames.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: March 20, 2012
    Inventor: Peter J. Rogers
  • Patent number: 8104576
    Abstract: The invention relates to scaffold steps, with two separate side pieces (11) and a plurality of separate step elements (13, 13?, 13?), which can be detachably coupled to each other and to the side pieces.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: January 31, 2012
    Assignee: Peri GmbH
    Inventor: Artur Schwoerer
  • Patent number: 8076619
    Abstract: A heated stair mat includes a plurality of coextensively shaped mats configured in a staggered arrangement along a plurality of vertical and horizontal walls of the existing steps such that odd ones of the mats cover top surfaces of the existing steps while even ones of the mats cover front surfaces of the existing steps. Each of such mats is provided with a plurality of laterally spanning grooves juxtaposed between the heating elements and formed on top surfaces of the mats respectively. Such grooves have axially opposed open end portions for directing fluids and debris away from the top surface of the mats. The device further includes a plurality of heating elements, a mechanism for rotatably connecting the odd and even mats to each other, and a plurality of ring-shaped couplings.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: December 13, 2011
    Inventor: Mason Wingale
  • Patent number: 7975803
    Abstract: 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 the other, are arranged at a distance from each other, and are preferably connected by means of platform bars at predetermined vertical distances. Said supports carry perforated anchor plates at predetermined vertical distances. Connecting railing elements can be applied to adjacent vertical supports. In order to apply at least one railing element above a platform, at least the highest railing elements of a level can be applied to the associated perforated anchor plate by means of a railing adapter element. When applied to the perforated anchor plate, said adapter carries a railing holding element above the anchor plate.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: July 12, 2011
    Assignee: Peri GmbH
    Inventor: Arthur Schwoerer
  • Publication number: 20090301815
    Abstract: 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 used as uprights in scaffold frames in North America (approximately 1.69 inches in outer diameter). Preferably the areas of reduced diameter are formed by swaging a tube of a larger diameter, typically approximately 1.90 inches. The modified support post is advantageously used with scaffold frames with connecting rosettes appropriately positioned on the uprights of the scaffold frames.
    Type: Application
    Filed: August 29, 2008
    Publication date: December 10, 2009
    Inventor: Peter J. Rogers
  • Patent number: 7258199
    Abstract: 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 connected to the column members. Each level of the lateral members is located at vertically spaced positions relative to the column members and each of the lateral members border a side of the module. At least one platform section is provided for each level and is supported by one level of the lateral members. The stackable modules include a staircase that extends between each level of the lateral members. The multilevel access platform includes a base assembly provided to stabilize and independently secure the multilevel platform. A method for erecting the multilevel access platform includes the step of stacking each module to meet a desired height of a building construction.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: August 21, 2007
    Inventor: Richard Hayes, Sr.
  • Patent number: 7228940
    Abstract: 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.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: June 12, 2007
    Assignee: bil-jax, inc.
    Inventor: Matthew D. Stringer
  • Patent number: 7195101
    Abstract: 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 composed of an inverted L-shaped element and a straight pole which is connected, by a quick coupling without clearance, to the horizontal arm of the L, and is optionally complemented by further poles to make up the lateral frames, both the straight pole and the vertical or longer arm of the inverted L-shaped element being provided with quick couplings with swinging clamping pieces which are intended to receive the flattened ends of reinforcing tie rods and safety-rail poles.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: March 27, 2007
    Assignee: Ingenieria de Encofrados y Servicios, S.L.
    Inventor: Jose Luis Ubinana Felix
  • Patent number: 7188707
    Abstract: 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 is a pair of end connectors. Each of the end connectors comprises a main body defining an arcuate body engagement surface, and at least two arms which are attached to the main body. Each of the arms also defines an arcuate arm engagement surface which is substantially continuous with the body engagement surface. Attached to and extending from the main body is at least one attachment finger which is extensible into the interior cavity of the plank. The body and arm engagement surfaces are sized and configured to be cooperatively engageable to the scaffolding frame.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: March 13, 2007
    Assignee: Bothwell Enterprises, Inc.
    Inventors: Timothy B. Bothwell, Roy Watson
  • Patent number: 7077239
    Abstract: 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 scaffold member, a safety gate, and a series of short horizontal members. The double barrel scaffold horizontal member has a upper tube and a lower tube joined in a vertical relationship and a third tube slidable in the lower tube. Each tube has an interior and an exterior end. The upper tube and the third tube have an attachment member positioned on its respective exterior end. The upper tube has an upstanding vertical stub, to which is attached the short vertical scaffold member. The short scaffold boards and the long scaffold boards are placed on the scaffold frame to define a scaffold deck with an access opening.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: July 18, 2006
    Assignee: Deltak Manufacturing, Inc.
    Inventors: Yates W. Hayman, Ken Hensley, Robert E. Lea
  • Patent number: 7032712
    Abstract: 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 oppositely disposed horizontal carriers another and preferably extending parallel to one another, preferably by means of hooks,.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: April 25, 2006
    Assignee: Peri GmbH
    Inventor: Artur Schwörer
  • Patent number: 7017710
    Abstract: 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, such that the connector members of adjacent scaffolding elements can interlock at right angles to one another, forming a structure of interlocking scaffolding elements. The connector members can be formed from a metal plate or can be a casting, for example.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: March 28, 2006
    Inventors: Pieter Wouter Booysen, Michael Walter Seitz
  • Patent number: 6994187
    Abstract: 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 shackle or other lifting gear.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: February 7, 2006
    Inventors: Ken Hensley, Yates W. Hayman
  • Patent number: 6953106
    Abstract: 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 telescopically collapsible ladder structures, which rest directly on the ground when the tower is in use.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: October 11, 2005
    Inventors: James Thomas Weston, Richard Weston
  • Patent number: 6938730
    Abstract: 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 height adjustment bars. The frame is positioned on a base board. A plurality of wheels is disposed underneath of the base board. The wheels allow the workhorse to be repositioned while the worker is on the platform. The height adjustment bars are mounted on either side of the frame. The bars are positioned at varying heights so that the worker may adjust the height of the platform. The platform is disposed across the frame and is supported by the height adjusting bars. The platform is of suitable size to support a worker and the worker's sheet rock material while providing enough room for the worker to operate.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: September 6, 2005
    Inventor: Nathaniel Hairston
  • Patent number: 6932195
    Abstract: 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 member, the clamp joining a horizontal scaffold member substantially perpendicular to a horizontal scaffold member positioned in the channel. Positioned on the top side is a vertical stub directed away from the channel, where the vertical stub is connectable to a vertical scaffold member.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: August 23, 2005
    Assignee: Deltak Manufacturing, Inc.
    Inventors: Yates Westley Hayman, Ken Hensley, Robert E. Lea
  • Publication number: 20040231922
    Abstract: 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 the other, are arranged at a distance from each other, and are preferably connected by means of platform bars at pre-determined vertical distances. Said supports carry perforated anchor plates at pre-determined vertical distances. Connecting railing elements can be applied to adjacent vertical supports. In order to apply at least one railing element above a platform, at least the highest rating elements of a level can be applied to the associated perforated anchor plate by means of a railing adapter element. When applied to the perforated anchor plate, said adapter carries a railing holding element above the anchor plate.
    Type: Application
    Filed: June 9, 2004
    Publication date: November 25, 2004
    Inventor: Arthur Schwoerer
  • Patent number: 6814184
    Abstract: 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 columns. A set of platforms may be supported by structure that resides in the space immediately below the platforms, thus access to the platforms is unobstructed by support structure for the platforms above. This arrangement allows the platform to be serviced by hoists from more than one side, and for access from the hoists to be unobstructed.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: November 9, 2004
    Inventor: Lawrence Blinn, Jr.
  • Publication number: 20040200668
    Abstract: A multi-level construction scaffold comprises a pair of H-shaped end frames spaced by horizontal guard rails. The guard rails are pivotally connected at opposed ends thereof to the end frame members, thereby allowing the guard rails to pivot in parallel when one of the frame member is lifted relative to the other. Each end frame includes a pair of uprights interconnected by a horizontal platform support located at a distance below the guard rails engaged with the end frames. In this way, the safety guard rails of a next level to be erected can be installed directly from the underlying level.
    Type: Application
    Filed: April 14, 2003
    Publication date: October 14, 2004
    Inventor: Benoit Duplessis
  • Patent number: 6779631
    Abstract: 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 shackle or other lifting gear.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 24, 2004
    Assignee: Deltak Manufacturing, Inc.
    Inventors: Ken Hensley, Yates Westley Hayman
  • Patent number: 6739429
    Abstract: 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 to and joining the vertical legs near the lower distal ends thereof. Because of the three-dimensional geometry of the corner scaffold structure, multiple hop irons can be secured to each side of the structure to provide additional support to scaffold planks, increasing their stability.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: May 25, 2004
    Inventor: Gregory Peals
  • Patent number: 6691828
    Abstract: 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 tread mount and projecting outwardly from the stringer, the scaffold stringer additionally has least one attachment member for attaching the stringer to a scaffold structure.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: February 17, 2004
    Assignee: Deltak Manufacturing, Inc.
    Inventors: Yates Westley Hayman, Kenneth Ray Hensley
  • Publication number: 20030230454
    Abstract: Provided herein is a stand useful by hunters to observe or hunt game in remote locations. A hunting stand according to the invention is readily assembled and disassembled by virtue of connective means disclosed. A hunting stand according to the invention is readily portable to locations inaccessible to hunting stands of the prior art, and has greater structural stability over prior hunting stands.
    Type: Application
    Filed: June 17, 2002
    Publication date: December 18, 2003
    Inventor: George Morgan
  • Publication number: 20030226714
    Abstract: 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 with the supports and platform assemblies to hold the platforms securely in place. The unitary structure of the scaffolding assembly with hold down members acts as a deterrent against pilferage of the platforms because the unitary structure does not allow the planks to be removed unless the platform assembly is substantially disassembled. It also reduces the steps required to assemble a secure platform assembly with hold down members thus saving time while still preventing slippage and pilferage. The hold down members have holes at one end, and these holes have a diameter slightly greater than the outer diameter (OD) of the guide pipes at the junctions between vertically extending pipes.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 11, 2003
    Inventor: Michael D. Masino
  • Patent number: 6585083
    Abstract: 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.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: July 1, 2003
    Inventor: Roland R. Santarlasci
  • Patent number: 6578667
    Abstract: 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 nonskid surface and perform the work needed at any required height. The ladder is radially curved to fit between the thrust reverser sleeve (deployed) and the inner fan duct wall. This radial diameter between the GE, Rolls Royce and Pratt Whitney engines varies within inches. The main access blocks of the access platform can be used on all three engines by using different foam wedges and wall blocks to secure the assembly tightly in place. Over 70% of the blocks are useable on all three engine types, thus reducing the number of overall parts required.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: June 17, 2003
    Assignee: The Boeing Company
    Inventors: Thomas R. Weneck, Mickey A. Williamson
  • Patent number: 6557666
    Abstract: 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-members. The wall panels are secured in abutting positions to form a modular wall structure. The cross-members and wall panels are secured to the posts and cross-members respectively so that the cross-members and panels may be detached after use. The cross-members may be secured at various selected positions along the vertical posts. Similarly, the wall panels may be secured to the cross-members at various selected positions relative to the cross-members.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: May 6, 2003
    Inventor: Jean Drouin
  • Publication number: 20030047382
    Abstract: A safety apparatus capable of installation around the top level of a scaffolding from one scaffolding level below includes a plurality of support posts and rails. The support posts each have a set of hooks for pivotably attaching rails, and are each capable of attachment to a scaffolding by workers at a lower level so that a portion of the support post extends above the scaffolding's top level work surface. Apparatus installation entails pivotably attaching rails to a first support post, which is raised to the edge of the scaffolding and attached. A second support post is then pivotably attached to the free ends of the rails and similarly raised and attached to form a barrier along one edge of the scaffolding. Auxiliary rails may be pivotably attached to an installed support post from the lower level, and the free ends of these auxiliary rails may be pivotably attached to a third support post, which may then be raised and attached to form an adjacent safety barrier.
    Type: Application
    Filed: September 7, 2001
    Publication date: March 13, 2003
    Inventor: Danny Panacci
  • Patent number: 6450291
    Abstract: 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 post. A lateral member is secured to a side portion of the support post in a fixed, removable or rotatable state. A connector is mounted at an outer end of the lateral member at a vertical position corresponding to the first or the second connector support member.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: September 17, 2002
    Assignee: Nisso Sangyo, Co., Ltd.
    Inventor: Tatsuo Ono
  • Patent number: 6443262
    Abstract: 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 guard rails and the toeboards act as safety devices to protect against accidental falls during the use of the tubular frame scaffolding system.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: September 3, 2002
    Assignee: Waco International Corporation
    Inventor: Rached N. Karanouh
  • Patent number: 6435305
    Abstract: 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 rounded corners. A raised ridge surrounds the top surface of the platform. The support frame consists of two inverted U-shaped legs. Each of the inverted U-shaped legs has a center portion with two obtusely angled leg portions extending from the center portion. The center portions of the inverted U-shaped legs attach to opposite sides of the platform. The obtusely angled legs are angled away from the platform such that the stackable step stools can be stacked on top of one another in an alternating manner. The stackable step stools are stacked on top of one another with the upper stackable step stool being displaced by at least the width of the legs. Additional stackable step stools can be stacked on top of the stack in an alternating manner.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: August 20, 2002
    Assignee: MECO Corporation
    Inventor: Eric A. Ward
  • Publication number: 20020096398
    Abstract: Top rails of a ladder, where the top rails include a left and right top rail, each attachable to or forming part of the left and right hand rails respectively of the ladder. The two top rails are designed to diverge, creating room for a climber to easily pass between the two top rails. Each top rail is attachable to either a scaffold horizontal or vertical member through an attachment member positioned at or near the end of each top rail.
    Type: Application
    Filed: January 22, 2001
    Publication date: July 25, 2002
    Inventor: Yates Westley Hayman
  • Patent number: 6415891
    Abstract: 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 tread mount and projecting outwardly from the stringer, the scaffold stringer additionally has least one attachment member for attaching the stringer to a scaffold structure.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: July 9, 2002
    Inventors: Yates Westley Hayman, Kenneth Ray Hensley
  • Patent number: 6408587
    Abstract: 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 longitudinally of the structural member has a formation extending lengthwise of it for engagement by an attachment member which is to be retained to the longitudinally extending element at any of a range of positions therealong. The attachment member may provide for connection of a safety element to the structural member, and be freely movable therealong in use.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: June 25, 2002
    Assignee: Total Fabrications Limited
    Inventors: Christopher Patrick Noel Cronin, Neil Howard Darracott
  • Patent number: 6405830
    Abstract: 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 each end having a clip section which is insertable into the sleeve slot, and a lock, where the lock is a second sleeve slidable with respect to the first sleeve and which engages with the clip section to prevent removal of the toeboard.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: June 18, 2002
    Assignee: Deltak Manufacturing, Inc.
    Inventor: Yates Westley Hayman
  • Publication number: 20020036118
    Abstract: It is intended to provide a frame having versatility, superior in assembling performance, easy to be assembled and disassembled, easy to handle and not restricted by the place for custody, as well as a prefabricated scaffolding, a shoring, or a support beam, which is very economical.
    Type: Application
    Filed: August 28, 1998
    Publication date: March 28, 2002
    Applicant: NISSO SANGYO, CO. LTD.
    Inventor: TATSUO ONO
  • Patent number: 6354402
    Abstract: 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 with the supports and platform assemblies to hold the platforms securely in place. The unitary structure of the scaffolding assembly with hold down members acts as a deterrent against pilferage of the platforms because the unitary structure does not allow the planks to be removed unless the platform assembly is substantially disassembled. It also reduces the steps required to assemble a secure platform assembly with hold down members thus saving time while still preventing slippage and pilferage. The hold down members have holes at each end, and these holes have a diameter slightly greater than the outer diameter (OD) of the guide pipes at the junctions between vertically extending pipes.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: March 12, 2002
    Inventor: Michael D. Masino
  • Publication number: 20010013446
    Abstract: A scaffolding frame comprising two parallel posts which are connected by two traverses arranged perpendicularly with respect to the posts. The lower traverse is removably suspended on suspension knobs on the posts. The suspension knobs have a connection which is essentially T-shaped in cross section, whereby the lower traverse has angled brackets at its ends, each of which has a recess therein, which in the upper region is the same as or insignificantly wider than the shank of the T-shaped connection, and in the lower region is the same as or insignificantly wider than the head of the T-shaped connection. The connections extend in the mounted state of the traverse through the recesses. The brackets each have on the outwardly facing surface above the recesses a flange which rests on the upper side of the free end of the suspension knob.
    Type: Application
    Filed: January 25, 2001
    Publication date: August 16, 2001
    Inventor: Guenther Krause
  • Patent number: 6223856
    Abstract: 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 such a way that vertical locking or unlocking can be selectably achieved by sliding the end fitting in the direction of the rail section. Horizontal antislip locking is achieved and cancelled by raising the end fitting, thereby preventing said fitting from sliding into an inactive vertical locking position when it is in an active vertical position.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: May 1, 2001
    Assignee: Peri GmbH
    Inventor: Artur Schwoerer
  • Patent number: 6220391
    Abstract: 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 forward column, a center column, and a rearward column. The forward and center columns are connected by a walk board support and the center and rearward columns are connected by a work board support. The end frames are interconnected by a walk board joined at one end with the walk board support of one end frame and joined at the other end with the walk board support of the other end frame. A work board also interconnects the end frames in similar fashion with one end of the work board joined with the work board support of one end frame and the other end of the work board joined with the work board support of the other end frame.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: April 24, 2001
    Assignee: WCM Development Company
    Inventor: Bethel Y. White