With Hook Or Grab Patents (Class 182/206)
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Patent number: 7131516Abstract: A safety and accessibility assembly (10) having a pair of substantially identical hook portions (20, 26) which are coupled to a support frame having several pillar portions (12, 14, 16, 18), wherein the pillar portions (12, 14, 16, 18) are coupled to a platform portion (30). Particularly, the hook portions (20, 26) are adapted to removably and frictionally couple to a sea wall (100), thereby suspending the pillar portions (12, 14, 16, 18) and the platform (30) above a body of water (200), effective to allow accessibility into and out of the body of water (200) despite the level of the water (202).Type: GrantFiled: March 29, 2004Date of Patent: November 7, 2006Inventor: Henry Krol
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Patent number: 7100740Abstract: The present invention teaches a boat trailer ladder which may be easily secured to and moved along the trailer rails. A hook is dimensioned and configured to engage standard boat trailer rails. An A-frame ladder provides steps from an approximately the level of the trailer rails, or in alternative embodiments from approximately ground level, up for a distance above the trailer rails. The extra elevation gained by a user of ordinary size standing on an upper step is sufficient to allow them to reach the top surfaces of the boat.Type: GrantFiled: April 20, 2004Date of Patent: September 5, 2006Inventor: Brian Robert Newton
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Patent number: 7044270Abstract: A hook attachment for a ladder is provided and includes a pair of curved members, each of the curved members being formed in a tapered shape having a base portion of a first cross-sectional area and a tip portion of a second cross-sectional area smaller than the first cross-sectional area. A cross-sectional area between the base portion and the tip portion decreases in a substantially continuous manner in a direction from the base portion to the tip portion.Type: GrantFiled: June 30, 2004Date of Patent: May 16, 2006Assignee: Werner Co.,Inventors: Kevin McIntire, Roy B. Bendickson
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Patent number: 6994186Abstract: A rigid, unitary ladder is provided having one end configured to be attached to a powerline support tower after the ladder is dropped by helicopter to a lineman previously offloaded onto the tower. The ladder includes a first section which extends outwardly from the tower and a second section which extends at an angle at least equal to ninety degrees from an end of the first section to a base which is configured to rest on the powerline, the angle being defined between the undersides of the first and second ladder sections. The first section is of a length sufficient to space the base a distance from the tower which is beyond the flashover area around the tower.Type: GrantFiled: June 15, 2004Date of Patent: February 7, 2006Assignee: Haverfield CorporationInventor: Darryl K. Ed
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Patent number: 6907957Abstract: A trench shield ladder that hangs on the wall of the trench shield to provide workmen safe access to a trench. The ladder is provided with a top platform and hand rails that extend over the platform. The ladder can be adjusted in length by employing an extension portion with hooks that hang the extension on the main rungs of the main ladder. The extension portion is not as wide as the main portion of the ladder so that the legs of the extension rest between the legs of the main portion of the ladder. The ladder and extension are provided with stand off arms that hold the main and extension rungs of the ladder away from the wall of the trench shield. The present invention is designed to fit on trench shields of varying thicknesses.Type: GrantFiled: December 1, 2003Date of Patent: June 21, 2005Inventor: Arthur Allen Couch
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Patent number: 6883464Abstract: A bird cage ladder equipped with a locking connection mechanism that is biased toward a closed position and is easy to install and remove from a bird cage is disclosed herein. Particular embodiments of the present invention have the flexibility to connect with various shaped bird cages. Other embodiments provide additional ladder stability by limiting the range of movement of the ladder from side-to-side. Utilization of a locking connection mechanism as disclosed makes it very difficult for the ladder to disengage from the bird cage due to rocking caused by a bird. The locking connection mechanisms are releasably connected to the bird cage and bird cage ladder, allowing the bird cage ladder to be easily installed and removed from the bird cage.Type: GrantFiled: August 4, 2003Date of Patent: April 26, 2005Assignee: Aspen Pet Products, Inc.Inventor: Robert J. Kirch
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Patent number: 6820722Abstract: A device for erecting roof comprises a portable platform of a size and weight easily lifted and manipulated by a single worker. The platform is configured to fit over the upper ends of the chords of a truss that has already been secured in place so that it can support a worker. By using a pair of the devices, the worker can move from truss to truss, from one end of the roof to the other. The worker moves the device that is not currently in use from one truss to the truss that he has just finished securing in place, and then steps from the device currently in use onto the other device so that the worker is supported on the newly secured truss, in position to guide a new truss into position so that it can be secured. This process is repeated until all trusses have been secured.Type: GrantFiled: January 22, 2003Date of Patent: November 23, 2004Inventor: Ricky Dean Severt
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Publication number: 20040216955Abstract: A multipurpose ladder standoff especially useful for house painters and utility field workers including a jaw coupled between first and second rungs of an extension ladder and including first and second rotatable arms extending forwardly from opposing left and right jaw sides to encircle utility poles and trees, or to rest against the exterior walls and/or around the corners of a dwelling—all in a very stable, solid position.Type: ApplicationFiled: April 29, 2003Publication date: November 4, 2004Inventor: Eugene Unger
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Patent number: 6769514Abstract: A rigid, unitary ladder is provided having one end which attaches to a powerline support tower after the ladder is dropped by helicopter to a lineman previously offloaded onto the tower. The ladder includes a first section which extends outwardly from the tower and a second section which extends angularly downward from the first section to a base which rests on the powerline. The first section is of a length sufficient to space the base a distance from the tower which is beyond the flashover area around the tower.Type: GrantFiled: January 7, 2002Date of Patent: August 3, 2004Assignee: Haverfield CorporationInventor: Darryl K. Ed
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Publication number: 20040129847Abstract: The present invention provides a roof scaffold bracket (12) having a roof fixing arm (14), a platform support arm (16) pivotally attached (28) at one end of roof fixing arm (14) and an adjustment arm (18) pivotally attached (20) at the other end of roof fixing arm (14). Platform support arm (16) is adapted to be connected to adjustment arm (18). At least one foot means (72) is provided on roof fixing arm (14) whereby the at least one foot means (72) is adapted to secure the roof scaffold bracket (12) to a frame element (81) of a roof (42).Type: ApplicationFiled: September 4, 2003Publication date: July 8, 2004Inventor: Peter Searle
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Patent number: 6729441Abstract: The present invention 10 discloses an extension ladder safety adapter that is fabricated from a single elongated strap 22 made of a sturdy, malleable material, preferably metal, wherein each distal end of the strap 22 forms a substantially rectangular side rail retention bracket 18 of a size and shape adequate to accommodate the insertion of an industry standard extension ladder side rail 12 therethrough. Separation of the side walls of the retention bracket 18 is prohibited by a fastening element 20 such as a pop rivet that fastens the foot 30 of each bracket 18 to the bearing strap 22. The retention brackets 18 are secured to the side rails 12 either by sheet metal screws that screw directly into the ladder side rails or by other appropriate non-penetrative pressure-securing means that may reduce damage perpetrated upon the ladder.Type: GrantFiled: April 3, 2002Date of Patent: May 4, 2004Inventor: Bernard F Nahlen
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Patent number: 6722307Abstract: A buoyant platform (10) for dogs that is adapted to be releasably connected to an above waterline structure (100) wherein, the buoyant platform (10) includes a pair of flotation arm members (21) (22) having a generally rigid platform member (40) connected across the spaced inboard ends of the flotation arm members (21)(22) and a ramp member (30) suspended between the flotation arm members (21) (22) wherein, the ramp member (30) has an outboard end that is provided with a generally U-shaped spacer bar (36) that defines an enlarged submerged ramp entrance and which is operatively connected to the spaced outboard ends of the flotation arm members (21) (22).Type: GrantFiled: February 24, 2003Date of Patent: April 20, 2004Inventor: Barry H. Rogers
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Publication number: 20040031646Abstract: A collapsible escape ladder is provided with a hook, two supporting straps, and a plurality of rungs which are connected in series by the two supporting straps passing through a first hole penetrating each rung. A standoff member is inserted through a second through hole in each rung which is communicated with the first through hole, and passes through an opening of each supporting strap which is aligned with the second through hole inside each rung, and a screw bole is screwed into the corresponding screw hole, thereby to fasten the plurality of rungs and the two supporting straps together.Type: ApplicationFiled: August 19, 2002Publication date: February 19, 2004Applicant: Likong Industrial Corp.Inventor: Francis Huang
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Publication number: 20040026172Abstract: A step apparatus (10) is provided for use on a vehicle tire and includes a first step assembly (12) which includes a first step portion and a pair of first struts extending upward from the first step portion. A second step assembly (18) includes a second step portion and a pair of end bracket members extending downward from the second step assembly. Each of the end bracket members includes a front bracket portion and a rear bracket portion. Hinge members (28) are connected between the first struts and the front bracket portions. A pair of pawl assemblies (30) are connected to the rear bracket portion. When the tire step apparatus is installed on a tire, a person can step up on the first step portion and the second step portion. Each of the first struts includes a stop member for contacting the tire when the apparatus is installed on the tire. Each of the pawl assemblies includes a pawl hinge connected to one of the rear bracket portions. A pawl plate is connected to the pawl hinge.Type: ApplicationFiled: September 22, 2003Publication date: February 12, 2004Inventor: Steve L. Ehnes
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Publication number: 20040016598Abstract: Scaffold ladder, that consists of a vertical support provided with rungs on the one hand, and with protruding parts or hook elements on the other hand which can co-operate with the erected scaffold elements.Type: ApplicationFiled: June 25, 2003Publication date: January 29, 2004Inventor: Mark Verdijk
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Publication number: 20030192742Abstract: A rigid, unitary ladder is provided having one end which attaches to a powerline support tower after the ladder is dropped by helicopter to a lineman previously offloaded onto the tower. The ladder includes a first section which extends outwardly from the tower and a second section which extends angularly downward from the first section to a base which rests on the powerline. The first section is of a length sufficient to space the base a distance from the tower which is beyond the flashover area around the tower.Type: ApplicationFiled: April 16, 2003Publication date: October 16, 2003Inventor: Darryl K. Ed
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Publication number: 20030127288Abstract: A rigid, unitary ladder is provided having one end which attaches to a powerline support tower after the ladder is dropped by helicopter to a lineman previously offloaded onto the tower. The ladder includes a first section which extends outwardly from the tower and a second section which extends angularly downward from the first section to a base which rests on the powerline. The first section is of a length sufficient to space the base a distance from the tower which is beyond the flashover area around the tower.Type: ApplicationFiled: January 7, 2002Publication date: July 10, 2003Inventor: Darryl K. Ed
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Patent number: 6578666Abstract: A portable ladder assembly for a truck trailer for users to climb on and off truck trailers. The portable ladder assembly for a truck trailer includes a support assembly including bracket members being adapted to mount upon side rails of a truck trailer; and also includes a ladder assembly being attached to the bracket members and including elongate side members being spaced apart, and also including rung members interconnecting the elongate side members and being spaced along the elongate side members; and further includes railing members being attached to the support assembly for aiding a user moving upon the ladder assembly.Type: GrantFiled: February 25, 2002Date of Patent: June 17, 2003Inventor: Ronald K. Miller
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Patent number: 6550578Abstract: A stepstool (20) configured for mounting on a tire (22) includes a support frame configured to rest against an outer surface (40) of the tire (22). An outside lower platform (34) and an outside upper platform (36) are attached to the support frame. A first retaining bar (114) is configured to rest against an inner surface (42) of the tire (22), and first linking members (104 and 106) link the first retaining bar (114) to the support frame. The stepstool (20) further includes an inside platform (38) configured to releasably couple to the first retaining bar (114) and reside proximate the inner surface (42) of the tire (22). A second retaining bar (132) is configured to rest against the outer surface (40) of the tire, and second linking members (128 and 130) link the second retaining bar (132) to the inside platform (38). The first and second linking members are directed over an upper circumferential surface (122) of the tire (22) to hold the stepstool (22) securely on the tire (22).Type: GrantFiled: January 22, 2002Date of Patent: April 22, 2003Inventors: Bruce Law, John E. Toner
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Patent number: 6530455Abstract: An escape ladder provides emergency egress from a dwelling and generally comprises a hook assembly connected to a ladder assembly. The hook assembly includes a pair of laterally spaced clamps and the ladder assembly includes a pair of straps attached to the clamps and a series of rungs extending between the straps. Each clamp comprises an upper hook and a lower hook connected via a hinge. The pair of clamps are connected via a collapsible stabilizer bar. The hinges and stabilizer bar permit the clamps of the hook assembly to be folded and compressed to form an un-deployed configuration of the hook assembly. The rungs are of common cross-sectional shape permitting them to be nested in an un-deployed configuration of the ladder assembly. The escape ladder of the present invention provides secure attachment to the dwelling, folds into an un-deployed package that small and compact for storage, yet is assembled to provide user-friendly deployment that can be reliably deployed in a high stress situation.Type: GrantFiled: August 11, 2000Date of Patent: March 11, 2003Assignee: Walter Kidde Portable Equipment, Inc.Inventors: Henry Arnette, Judd W. Staples, Woodrow G. Shaw
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Publication number: 20030037991Abstract: A collapsible ladder having rungs of a relatively strong and thin material with integral stand-off projections that allow the ladder to be safely descended and of a cross-section that allows the ladder rungs to nest to a high degree of compactness. The ladder is readily deployed by means of a cover having two sets of temporary fasteners. In an emergency, the ladder is deployed by partially unwrapping the cover to a first state which allows an attaching member to be removed and placed over a window sill. After insuring that narrow fabric supports, which attach the attaching member to the rungs, are not twisted between the attaching member and a top rung of the ladder, the multiple rungs (still wrapped by the cover and secured by a second set of temporary fasteners) are supported using a handle attached to the cover. The handle is then held outside the window and dropped.Type: ApplicationFiled: August 1, 2002Publication date: February 27, 2003Inventors: Aldo J. Dibelardino, Andrew D. Ive, Ezio C. Dibelardino
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Patent number: 6513625Abstract: A ladder support device for a roof for holding a ladder on a roof. The ladder support device for a roof includes a first plate and a second plate. The first plate has a bottom edge, a top edge and a pair of side edges. The second plate has a bottom edge, a top edge and a pair of side edges. The top edges of the first and second plates are attached to each other along their lengths such that the plates are in an angular relationship with respect to each other. The plates have a top surface and a bottom surface. A bracket is coupled to the bottom edge of the first plate for removably engaging a top rung of the ladder. A block member is attached to the bottom surface of the first plate. The block member is positioned adjacent to and extends along the width of the second plate. The plates are placed on opposite sides of a roof to hold the ladder on the roof.Type: GrantFiled: March 9, 2001Date of Patent: February 4, 2003Inventor: Bernard J. Gaskins
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Publication number: 20020189903Abstract: A removable truck bed ladder system for use with truck beds of trucks, including a ladder step system which includes a plurality of steps, an attachment hook secured to one end of the ladder step system, a rotational hinge pin assembly secured to the ladder step system and a hand rail assembly rotationally secured to the ladder step system by the rotational hinge pin assembly.Type: ApplicationFiled: March 31, 2000Publication date: December 19, 2002Inventor: Ted Krish
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Patent number: 6470646Abstract: A roof scaffolding system includes a support assembly disposed on one inclined surface of a roof extending to a peak of the roof and attached to an opposite inclined surface of the roof near the peak thereof, a roof jack resting on the one inclined surface of the roof astraddle and connected to the support assembly, a valley support assembly disposed on a valley of the roof along one side of the one inclined surface and extending to the peak of the roof and attached to the opposite inclined surface of the roof near the peak thereof, and a valley jack astraddle the valley of the roof and valley support assembly and anchored to the valley support assembly. The roof and valley jacks are spaced apart so as to support a flat board extending therebetween.Type: GrantFiled: April 24, 2001Date of Patent: October 29, 2002Inventor: Lyle W. Bryant
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Patent number: 6467234Abstract: A prefabricated stairway module (10, 11) comprises a first step and a second step, each step (14) having a tread member (13) and a riser member (15). The stairway module further has fixing means (31) for fixing the module to a sloping surface on which it is laid. The steps in a module may be connected to each other by a rigid or flexible bridging member (19), and the tread member (13) may be curved. Different designs and configurations of the prefabricated modules may be combined into a stairway assembly, the modules which can be chosen according to the gradient of the underlying surface on which the stairway is to be constructed.Type: GrantFiled: December 9, 1999Date of Patent: October 22, 2002Inventor: Nicholas James Marshall
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Patent number: 6460654Abstract: A collapsible ladder having rungs of a relatively strong and thin material with integral stand-off projections that allow the ladder to be safely descended and of a cross-section that allows the ladder rungs to nest to a high degree of compactness. The ladder is readily deployed by means of a cover having two sets of temporary fasteners. In an emergency, the ladder is deployed by partially unwrapping the cover to a first state which allows an attaching member to be removed and placed over a window sill. After insuring that narrow fabric supports, which attach the attaching member to the rungs, are not twisted between the attaching member and a top rung of the ladder, the multiple rungs (still wrapped by the cover and secured by a second set of temporary fasteners) are supported using a handle attached to the cover. The handle is then held outside the window and dropped.Type: GrantFiled: December 31, 2001Date of Patent: October 8, 2002Assignee: X-IT Products, LLCInventors: Aldo J. Dibelardino, Andrew D. Ive, Ezio C. Dibelardino
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Publication number: 20020108811Abstract: A ladder stabilization apparatus attaches to a ladder to provide safety and stability for the ladder's user when the ladder is supported by a tree, a post, a pole, or other non-flat surface. The stabilization apparatus attaches rigidly to the ladder and uses a concavely shaped device with a knife edge, multiple teeth, or rubber gasket to grip the tree, post, or pole, thereby securing the top of the ladder to the non-flat surface. When not in use, the concavely shaped gripper plate can be removed and attached to the ladder in a flat storage position, allowing the ladder to be used against typical flat surfaces.Type: ApplicationFiled: January 25, 2002Publication date: August 15, 2002Inventors: Robert L. Ulmschneider, Phillip A. Lee
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Publication number: 20020096398Abstract: 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: ApplicationFiled: January 22, 2001Publication date: July 25, 2002Inventor: Yates Westley Hayman
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Patent number: 6412600Abstract: A ladder for providing access to a building roof having a roof side edge includes first and second side rails which are substantially mutually parallel and laterally spaced apart from each other; and a longitudinal series of foot rungs extending perpendicularly between and interconnecting the first and second side rails; where the side rails have engaging notches directly opposite each other which are sized and shaped to receive and engaging a roof side edge to stabilize the ladder against pivoting and falling laterally.Type: GrantFiled: May 31, 2001Date of Patent: July 2, 2002Inventor: Henry Wolfman
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Patent number: 6401861Abstract: A free-floating step ladder which can hang on the rim of a trash dumpster has a stepless hook portion for hanging the ladder on the dumpster, a platform to stand on while loading the dumpster, and a stairway from the platform which extends adjustably toward the ground on which the dumpster rests without touching the ground.Type: GrantFiled: July 6, 2000Date of Patent: June 11, 2002Assignee: Great Lakes Construction ServicesInventor: Stephen James Marszalek
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Patent number: 6386318Abstract: A pivotable type ladder assembly intended primarily as a life saving device for persons who accidentally fall into the water adjacent to the marine structure of a yacht basin or small boat marina. The ladder having two parallel side rails, with upper and lower ends, joined at appropriate intervals by a plurality of perpendicular cross-members, or treads, the bottom most of which is ballasted. The ladder is connected, pivotably; to a mounting bracket suitable for attachment to a marina walkway or docking structure. The bracket having a pivot pin which articulates with a pivot hole positioned in the upper one-third of the ladder and having also at its lower extremity a cross-member to support the ladder while it is in the vertical, deployed position and to prevent side-to-side movement while the ladder is in use.Type: GrantFiled: December 18, 2000Date of Patent: May 14, 2002Inventor: Loren E. Smith
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Publication number: 20020040828Abstract: A ladder mounting mechanism is configured for mounting a ladder to a truck trailer. The truck trailer has at least one keeper member fixedly connected thereto. The ladder mounting mechanism includes a frame and at least one moveable locking member moveably connected to the frame. The frame is adapted to be fixedly connected to the ladder. The moveable locking member is adapted for movement relative to the frame between a ladder-secured position and a ladder-unsecured position. In the ladder-secured position, the locking member engages the keeper member in a manner for securing the ladder to the truck trailer. In the ladder-unsecured position, the locking member is disengaged from the keeper member.Type: ApplicationFiled: November 27, 2001Publication date: April 11, 2002Applicant: Tra-Lor-Mate, Inc.Inventor: Richard LaBrash
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Patent number: 6334510Abstract: A collapsible ladder having rungs of a relatively strong and thin material with integral stand-off projections that allow the ladder to be safely descended and of a cross-section that allows the ladder rungs to nest to a high degree of compactness. The ladder is readily deployed by means of a cover having two sets of temporary fasteners. In an emergency, the ladder is deployed by partially unwrapping the cover to a first state which allows an attaching member to be removed and placed over a window sill. After insuring that narrow fabric supports, which attach the attaching member to the rungs, are not twisted between the attaching member and a top rung of the ladder, the multiple rungs (still wrapped by the cover and secured by a second set of temporary fasteners) are supported using a handle attached to the cover. The handle is then held outside the window and dropped.Type: GrantFiled: June 8, 2001Date of Patent: January 1, 2002Assignee: X-It Products, LLCInventors: Aldo J. Dibelardino, Andrew D. Ive, Ezio C. Dibelardino
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Patent number: 6305141Abstract: A prefabricated staircase module (10, 11) comprises a first step and a second step, each step (14) having a tread member (13) and a riser member (15). The staircase module further has fixing means (31) for fixing the module to a sloping surface on which it is laid. The steps in a module may be connected to each other by a rigid or flexible bridging member (19), and the tread member (13) may be curved. Different designs and configurations of the prefabricated modules may be combined into a staircase assembly, the modules which can be chosen according to the gradient of the underlying surface on which the staircase is to be constructed.Type: GrantFiled: December 9, 1999Date of Patent: October 23, 2001Inventor: Nicholas James Marshall
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Publication number: 20010027898Abstract: A collapsible ladder having rungs of a relatively strong and thin material with integral stand-off projections that allow the ladder to be safely descended and of a cross-section that allows the ladder rungs to nest to a high degree of compactness. The ladder is readily deployed by means of a cover having two sets of temporary fasteners. In an emergency, the ladder is deployed by partially unwrapping the cover to a first state which allows an attaching member to be removed and placed over a window sill. After insuring that narrow fabric supports, which attach the attaching member to the rungs, are not twisted between the attaching member and a top rung of the ladder, the multiple rungs (still wrapped by the cover and secured by a second set of temporary fasteners) are supported using a handle attached to the cover. The handle is then held outside the window and dropped.Type: ApplicationFiled: June 8, 2001Publication date: October 11, 2001Inventors: Aldo J. Dibelardino, Andrew D. Ive, Ezio C. Dibelardino
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Patent number: 6167988Abstract: A horizontal support member in the form of rod, pipe or tube is disposed transverse to and displaced from a rigid or utility pole proximate a messenger cable supporting a cable. The support member is supported on and a part of a projecting arm extending outwardly from a bracket attached to the utility pole. The support member is further provided with flanges on the ends thereof to prevent hooks on the end of a lineman's ladder from slipping off the ends of the support member. The support member is long enough not only to provide engagement for both hooks of the lineman's ladder but also could be extended so that the ladder hooks cannot slide off the support member as long as the hooks of the lineman's ladder are astraddle the projecting arm. The projecting arm is of sufficient length to position the top of the ladder below the front face of an electrical equipment cabinet which may be hung on and bolted to a pole bracket.Type: GrantFiled: July 23, 1999Date of Patent: January 2, 2001Assignee: Moore Diversified ProductsInventors: David Bruce Frodge, James Vogt
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Patent number: 6158549Abstract: A peak hook includes a pair of spaced-apart, elongated, hook-shaped members in which each of the hook-shaped members has a rear downwardly-depending leg for extending over a rear surface of a roof and a front downwardly-depending leg for extending over a front surface of the roof. A roof-engaging member having a length substantially equal to a width of the ladder attaches to the rear downwardly-depending legs for engaging the rear surface of the roof. A rung-engaging member attaches to the front downwardly-depending legs for supporting portions of a rung adjacent to opposite sides of the ladder. A slidable rung-engaging member having apertures through which respective front downwardly-depending legs extend cooperates with the rung-engaging member to releasably attach the peak hook to the ladder.Type: GrantFiled: November 3, 1998Date of Patent: December 12, 2000Inventor: Charles N. Hartman, Jr.
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Patent number: 6138794Abstract: A portable ladder having stabilizer brackets slidably mounted on the ladder siderails to permit the ladder to be mounted to a flatbed trailer tiedown rail. The slidable stabilizer brackets are substantially self-adjusting in position, and adjust automatically, for example, when a load is removed from the trailer. The ladder may optionally include two sections pivotably interconnected to facilitate handling and storage. A lock to secure the two sections together in an extended position may also be provided. The advantage is a lightweight, portable ladder which can be used with practically any flatbed trailer. The ladder adjusts substantially automatically to the height of the trailer to provide stable access to the trailer bed.Type: GrantFiled: September 16, 1997Date of Patent: October 31, 2000Assignee: Transafety Inc.Inventor: Brian Staal
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Patent number: 6119811Abstract: A multiple functional, foldable, and portable ladder comprises a plurality of ladder units 5, wherein the ladder unit has a supporting rod on the two sides thereof. Each supporting rod is foldable so that the ladder is expandable for upstanding or foldable so as to be carried and stored and be used in emergency. Thus the ladder is convenient in application and storage. Two supporting rods between two adjacent ladder units 5 are pivotally connected by pivotal shafts, and two ends of each pedal are installed with respective control seats. A pivotal shaft and a movable buckling rod are installed within the control seat. Thereby, when the ladder is expanded, the supporting rod of the ladder unit is assembled by the control seat, during folding, the supporting rods are folded after the buckling rods has been displaced.Type: GrantFiled: April 7, 1999Date of Patent: September 19, 2000Inventor: Lin Tsung-Ping
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Patent number: 6119809Abstract: A collapsible retriever ladder generally includes a first platform, a second platform, supporting arms and a clamping mechanism. The first platform is pivotally attached to the supporting arms so that the first platform can be closed. The second platform is pivotally attached to the first platform so that the second platform can fold over the first platform so as to be sandwiched between the first platform and the supporting arms when the first platform is closed. The clamping mechanism secures the ladder to the upper edge of a side of a boat and is pivotally attached to the supporting arms so that the supporting arms having the first and second platforms secured thereto can rotate inwardly of the boat for storage and outwardly of the boat for use.Type: GrantFiled: August 30, 1999Date of Patent: September 19, 2000Assignee: SeaArk Boats, Inc.Inventor: Zach McClendon, Jr.
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Patent number: 6092624Abstract: A ladder for use on roofs, especially steep pitched roofs. The ladder includes a pair of spaced apart elongate rails with a plurality of spaced apart steps extending between the rails. A pair of hooks are coupled to the first ends of the rails. Each of the first sides of the rails has a plurality of skids coupled thereto. A pair of wheels are coupled to the second sides of the rails wheels. A plurality of elongate platform brackets are extended between the rails.Type: GrantFiled: October 22, 1999Date of Patent: July 25, 2000Inventor: Carl Slater
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Patent number: 6082491Abstract: An inflatable slide for attachment to a house window including an elongated self-inflating slide portion having an upper end, an enlarged lower end, and an intermediate extent therebetween. The slide portion further includes a pair of opposed raised side portions extending a length thereof with a generally planar central sliding portion disposed therebetween. The upper end is secured to an outside of a house immediately below a window of the house whereby an unobstructed space exists between the window and a ground surface therebelow. The slide portion has a length greater than a length between the window and the ground surface whereby the enlarged lower end rests on the ground surface creating an obtuse angle with respect to the slide portion. A safety system is coupled with respect to the slide portion. The safety system prevents a user from falling off the slide portion during use.Type: GrantFiled: December 23, 1998Date of Patent: July 4, 2000Inventor: Winsome Collier
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Patent number: 6044930Abstract: A stabilizing scaffold bracket for a ladder or the like. The preferred embodiment of the present invention configured to affix a ladder to a scaffold in a stable, yet removable fashion, the apparatus of the invention including first and second aligned plates spaced by a spacer bar, the plates having first and second ends, the first end of the plates having formed therein an upper hook member to engage a horizontal bar of the scaffold, the second end of the plates having formed therein a lower hook member configured to engage the horizontal rung of a ladder, the second end further including an upper engagement member to engage the lateral supports of the ladder. Further provided are first and second pivotal cams to removably, yet firmly, secure the unit to the scaffold, once installed.Type: GrantFiled: October 15, 1998Date of Patent: April 4, 2000Inventor: Rocky Hayman
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Patent number: 6044928Abstract: A stepstool (20) configured for mounting on a vehicular tire (22) includes a support frame configured to rest against an outer surface (38) of the tire (22). The support frame includes a first upright support (24), a second upright support (26), and a third support (28) coupled to each of the first and second upright supports (24, 26). A platform (30) is attached to the support frame. A retaining bar (36) is configured to rest against an inner surface (40) of the tire (22). Chains (32 and 34) link the retaining bar (36) to each of the first and second upright supports (24, 26). The chains (32 and 34) are directed over an upper circumferential surface (83) of the tire and wrap around the upper circumferential surface (83) to hold the platform (30) securely on the tire (22).Type: GrantFiled: October 2, 1998Date of Patent: April 4, 2000Inventors: Bruce Law, John E. Toner
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Patent number: 6012549Abstract: A fire escape ladder for attaching to a window for providing a means to escape a burning building. The fire escape ladder includes a pair of spaced apart arms adapted for engaging a generally vertically oriented wall such as a window sill. Each of the arms has a generally J-shaped upper portion adapted for hooking onto a sill, a main portion extending at an obtuse angle from the upper portion, and a spacing portion extending from the main portion and adapted for abutting an outer surface of a building. A stabilizer bar extends between the arms. A ladder portion extends from free ends of the main portions of the arms. The ladder portion has a pair of deformable lines and a plurality of rungs coupled to the lines at equally spaced intervals along a length of the lines.Type: GrantFiled: April 1, 1999Date of Patent: January 11, 2000Inventor: Jimmie Adams
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Patent number: 5971106Abstract: A step ladder for mounting on the side of a tub to provide a secure way to reach over a tub to clean the opposing regions and walls of the tub. The step ladder includes a top step having front and back edges, left and right sides, and upper and lower surfaces. A lip member is downwardly extended from the lower surface of the top step. The lip member is positioned adjacent the front edge of the top step. A pair of spaced apart elongate legs are downwardly depended from the lower surface of the top step. Each of the legs is pivotally coupled to the lower surface of the top step so that the legs are pivotable between an deployed position and a collapsed position. When the legs are in the collapsed position, the longitudinal axes of the legs are generally parallel with the lower surface of the top step. A step rung is extended between the legs and spaced apart from the top step.Type: GrantFiled: February 26, 1998Date of Patent: October 26, 1999Inventors: Kevin T. Brown, Randolfp Caravantes
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Patent number: 5908083Abstract: Improved roofworker support apparatus for placement on slanted roof structures with varying peak angles, and including a pair of peak-adjustable elongate assemblies independently deployable on the roof structure in spaced substantially parallel positions extending up the roof, each including and at least one elongate crosspiece removably supportable across the elongate assemblies. The elongate assemblies include an elongate roof-contact member, and overpeak member, an adjustment member between the overpeak member and the roof-contact member and adjustable to set the elongate roof-contact member and overpeak member at desired angle to accommodate roof peak angles, and at least one crosspiece-support member affixed to the elongate roof-contact member. Highly preferred embodiments include certain extension members.Type: GrantFiled: April 13, 1998Date of Patent: June 1, 1999Inventor: David L. Hamilton
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Patent number: 5890560Abstract: A ladder stabilizing device is adapted for attachment to a ladder and to a fixed structure for holding the ladder in a stable condition on a supporting surface adjacent to the structure. The ladder includes a base, a pair of laterally spaced side rails, and a plurality of vertically spaced and laterally extending rungs connected to the side rails. The ladder stabilizing device includes an elongate ladder locking member with a pair of spaced-apart locking grips for being releasibly locked in laterally spaced relation onto one of the rungs of the ladder. An elongate attachment member is rigidly coupled at its first end with the ladder locking member. The opposite second end of the attachment member is adapted for being secured to the fixed structure. A releasable fastener is located at the second end of the attachment member for releasibly attaching the stabilizing device to the fixed structure.Type: GrantFiled: April 3, 1997Date of Patent: April 6, 1999Inventor: Brian Michael Sloop
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Patent number: 5829380Abstract: A new Boat boarding system for dogs for ALLOWING PETS TO SAFELY AND EASILY EXIT AND ENTER A BOAT. The inventive device includes a folding platform comprising a pair of platform segments hingedly secured together in a linear arrangement. The pair of platform segments include an inner segment and an outer segment. A free end of the inner segment is secured to a boat. A pair of inflatable floatation bags are positioned on an underside of the outer segment disposed inwardly of a free end thereof.Type: GrantFiled: July 31, 1997Date of Patent: November 3, 1998Inventor: Donald H. Smith
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Patent number: 5816365Abstract: A new ladder stabilizing device for mounting to a rung of a ladder for helping keep a ladder resting against a pole stable. The inventive device includes a U-shaped stabilizing member that includes a pair of spaced apart elongate stabilizing arms. A proximal end of each stabilizing arm has a spaced apart upper and lower proximal end region which forms a rung slot between them that receives a rung of a ladder of the type which includes a pair of rails and a plurality of spaced apart rungs extending between the rails. The upper proximal end regions of the stabilizing arms are connected together by an upper lateral portion and the lower proximal end regions of the stabilizing arms are connected together by a lower lateral portion. Inner sides of the stabilizing arms face each other and define a post channel that receives an elongate post. An elongate mounting member that mounts to a rung of a ladder is positioned between proximal and distal ends of the stabilizing arms and extends across the post channel.Type: GrantFiled: November 19, 1997Date of Patent: October 6, 1998Inventor: Troy L. Ruth