Trestle Patents (Class 182/153)
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Patent number: 6830129Abstract: A bench step to aid in mounting a bench platform provided by the common drywall bench is provided having a support portion adapted to be fit over a step rail provided by the drywall bench, the support portion being held in place on the step rail by a flange that extends from the support portion. A spacer portion extends from the support portion to distance the support portion from a step portion that extends out from the spacer portion. The step portion is provided with structural support by a step support portion that angles downwardly from the step portion to contact the drywall bench and thereby support the step portion.Type: GrantFiled: July 15, 1999Date of Patent: December 14, 2004Inventor: Mack Rose
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Publication number: 20040238280Abstract: A scaffold includes a platform, a pivotable leg unit, and a leg lock. The leg lock is used to lock the leg unit in an extended position for use of the scaffold.Type: ApplicationFiled: August 7, 2003Publication date: December 2, 2004Inventors: William R. Gibson, Paul K. Meeker, Luke Hillebrecht
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Patent number: 6817445Abstract: An adjustable sawhorse that functions as two sawhorses by providing two support members positioned several feet apart. The device is comprised of two rectangular framed leg assemblies that are pivotally attached and operate with a scissor-like motion. Each rectangular framed leg assembly is comprised of a first and second “U” shaped tubular member with the first “U” shaped tubular member having a smaller diameter than that of the second, and with the sides of the first “U” shaped tubular member being slidably mounted inside the sides of the second. The second “U” shaped tubular member of each leg assembly includes two locking knobs to lock the first and second “U” shaped tubular members into place with respect to each other. The device includes two chains interlinking the two rectangular framed leg assemblies and a support member pivotally attached to the uppermost cross bar of each leg assembly.Type: GrantFiled: March 25, 2003Date of Patent: November 16, 2004Inventor: Robert K. Slemmer
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Publication number: 20040222042Abstract: A self-stabilizing trestle includes independently pivoting leg assemblies, which allow a substantially horizontal support surface defined by the trestle to be maintained stable when the trestle is placed on uneven terrain.Type: ApplicationFiled: May 8, 2003Publication date: November 11, 2004Inventor: Paul van der Pol
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Patent number: 6810996Abstract: A bracket is provided for a sawhorse or other multiple piece stand, which stand includes a plurality of elongate legs and an elongate beam supported substantially horizontally by the legs. The bracket includes a generally U-shaped channel for receiving the beam. The channel includes a base and pair of side walls attached unitarily to and extending upwardly from the base. There are a pair of leg accommodating receptacles fixedly joined to the channel and including a first receptacle that has a first recess for fixedly interengaging the base and a first one of the side walls of the channel and a second receptacle that has a second recess for fixedly interengaging the base and a second one of the side walls of the channel. The receptacles are juxtaposed along and extend divergently from the channel. Each receptacle is capable of receiving a respective leg, which legs are engaged with a substantially horizontal surface to support the beam above the substantially horizontal surface.Type: GrantFiled: May 4, 2001Date of Patent: November 2, 2004Inventor: Brian D. Rump
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Patent number: 6761249Abstract: A support includes at least a vertical member and at least two pivoting legs, each leg being bent in its upper part. At least one of the pivoting legs has a circular cross-section at its bent upper part, and the vertical member has on its surface facing the bent upper part, a piece with U-shaped cross-section; and at least another of the pivoting legs has, at its bent upper part, a screw perpendicular to the longitudinal axis of the bent upper part.Type: GrantFiled: December 4, 2002Date of Patent: July 13, 2004Inventor: Raymond Garcia
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Patent number: 6758307Abstract: A heavy duty sawhorse brace comprising an elongated top horizontal channel, two elongated side leg channels and a brace plate. The channels are U-shaped and configured to receive the members used to construct the sawhorse. The channels further include at least one aperture configured to receive at least one fastener for removably attaching the sawhorse members to the brace. The brace plate extends from the top horizontal channel to each side leg channel, providing increased stability. The side leg channels are oriented such that, when the sawhorse is assembled, the leg members angle away from the center of the sawhorse. The leg members at each end also angle out from each other.Type: GrantFiled: March 7, 2002Date of Patent: July 6, 2004Inventor: Allen Ols
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Publication number: 20040124036Abstract: A work stand assembly for supporting the mounting unit of a contemporary portable power tool, which assembly has a pair of elongated members attached in a parallel manner to bracket units at each set of ends of the members, with the bracket units supported above a ground surface by collapsible legs, and with the portions of the members intermediate the bracket units exposed for directly receiving and clampingly supporting the mounting unit.Type: ApplicationFiled: December 31, 2002Publication date: July 1, 2004Inventor: Carl Ulshafter
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Patent number: 6712182Abstract: A collapsible scaffolding apparatus (10) for inclined or angled surfaces such as roof lines (100) wherein the apparatus (10) includes a pair of adjustable length support leg members (30) each having an upper leg segment (31) and a lower leg segment (32) provided with a pivoted foot element (39) wherein the upper leg segments (31) are connected both to one another and to one end (21) of an elongated horizontal support arm member (20) wherein the other end 22 of the horizontal support arm member (20) is optionally provided with a vertical (70) or horizontal (80) connector element to operatively engage the scaffolding apparatus (10) either to a vertical wall surface (101) or to the other end (22′) of a mirror image scaffolding apparatus (10′).Type: GrantFiled: January 10, 2002Date of Patent: March 30, 2004Inventor: George M. Baker
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Patent number: 6712180Abstract: A sawhorse includes an elongated workpiece supporting structure and a pair of leg assemblies joined to the workpiece supporting structure, which enables the leg assemblies to be moved between a folded position for storage and transportation purposes and an operative position. Connecting structure connects the leg assemblies to retain the leg assemblies in the operative position thereof and to allow movement of the leg assemblies between the operative and folded positions thereof. Each leg assembly includes a pair of separate lower leg members and is mounted for independent movement in a generally vertical direction and adjusted to a plurality of different positions with respect to the associated leg assembly and the connecting structure while the pair of the leg assemblies are retained in the operative position thereof by the connecting structure. A releasable locking member for each leg member is mounted in the connecting structure for movement between a releasing position and a locking position.Type: GrantFiled: March 1, 2002Date of Patent: March 30, 2004Assignee: Zag Industries Ltd.Inventor: Roni Levy
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Patent number: 6681895Abstract: A pivoting leg assembly (10) for a sawhorse, the leg assembly comprising: a pair of pivotally movable leg members (40), the leg members movable between a storage position and operative position; a mounting body (50) for mounting the pair of leg members, the mounting body including a bridging member (70), a first support portion (80) having two first arms (82), and a second support portion (90) having two second arms (92); the bridging member extending between the two first arms; the second arms located within the first arms to form a gap between each respective first arm and second arm; wherein each leg member is pivotally mounted to at least one of the arms and sandwiched between a respective first arm and second arm within the gap.Type: GrantFiled: July 26, 2002Date of Patent: January 27, 2004Inventor: Keith David Virtue
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Patent number: 6640930Abstract: A lockable, tubular steel saw horse scaffold support consisting of four legs, each pair of legs being joined together with a crossbar and rotatably connected to a top bar. A chain attached across the crossbars for holding the legs in an open position and an arm having a looped end moveably connected to a link on a first crossbar and a hooked end having a kinked protrusion for selectively locking the arm to a first link on the second crossbar or for locking the arm in a storage position to a second link on the first crossbar.Type: GrantFiled: May 21, 2002Date of Patent: November 4, 2003Inventors: Larry W. Peters, Larry W. Peters, Jr., James A. Peters
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Patent number: 6612401Abstract: A sawhorse is disclosed that provides stability, easy assembly and disassembly, and ability to handle heavy loads and is inexpensive to manufacture. Brackets that have a C-shaped collar for holding the ends of a cross member and leg receptacles for holding standard dimension lumber used for legs of the sawhorse. All pieces are designed to spread the forces of the load. An optional elevation bar helps facilitate the cutting of material without cutting through the sawhorse.Type: GrantFiled: July 3, 2001Date of Patent: September 2, 2003Inventors: Tommy Price, Charles W. Nolen, Jr.
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Patent number: 6601675Abstract: A folding and self-locking sawhorse comprised of two frames connected by the tops (20) and the middle horizontal brace (24) to create a combination of two opposing forces which product a rigid sawhorse in the open position, but remains collapsible and folds for storage when the two forces are not in opposition. The sawhorse has a clamping top (20) top which can hold items with a compression force created by the expansion force induced by a folding hinged lever (26) against the two side frames. The clamping top (20) accepts tabletops (42) and other items (46) and the locking divergence of the legs (22) can be used to mate the sawhorse with a base (34) for better stability. An alternative embodiment of the locking foldable sawhorse (58) includes one or more beams (57) set upon a beam support structure (57a).Type: GrantFiled: September 20, 2001Date of Patent: August 5, 2003Inventor: Donald P. Gulledge
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Publication number: 20030132061Abstract: The invention concerns a support (1) comprising at least a vertical member (4) and at least two pivoting legs (3), each leg (3) being bent in its upper part (3b). The invention is characterized in that at least one of the pivoting legs (3) has a circular cross-section at its bent upper part (3b), and said vertical member (4) has on its surface facing said bent upper part (3b), a piece (7) with U-shaped cross-section; and at least another of the pivoting legs (3) has, at its bent upper part (3b), a screw (9) perpendicular to the longitudinal axis of said bent upper part (3b).Type: ApplicationFiled: December 4, 2002Publication date: July 17, 2003Inventor: Raymond Garcia
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Patent number: 6564903Abstract: A sawhorse is constructed with brackets allowing the legs of the sawhorse to fold into a compact unit by having the legs interleave when folded. The legs pivot about a plane that is canted to allow each leg to rotate without interfering with any other leg. The length of the legs are not restricted in any fashion. The legs may also be locked in both the extended, or service position as well as the closed position. The bracket may be constructed of as few as two unique parts, and a pair may be nested together for compact shipping, storage, and display on a store shelf.Type: GrantFiled: August 2, 2001Date of Patent: May 20, 2003Inventor: Russell S. Krajec
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Publication number: 20030047384Abstract: A work piece support assembly can be assembled in either an operating configuration or in a flattened coplanar configuration for storage. The support assembly includes a pair of leg assemblies, one each for the proximal and distal end portions of an elongated rail support member. Each end of the rail support member has a portion having two leg socket assemblies. Each socket assembly has a first and second socket with respective first and second centerlines that may be non parallel and intersect at a predetermined point. Each leg assembly has a stem assembly comprised of a first and second stem portion, which are both pivotally coupled to the rail support member through the first and second sockets of each socket assembly. In its operational configuration, the first and second leg of each leg assembly is transverse to the rail support member. In the flattened storage configuration, the leg assemblies counter rotate resulting in each leg assembly being coplanar to the rail support member.Type: ApplicationFiled: September 10, 2001Publication date: March 13, 2003Inventor: James P. Blackwell
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Patent number: 6488119Abstract: A folding sawhorse of the type comprising two trestle like frames that are hingedly connected at their tops. The shelf is hingedly attached to a lower strut of one frame and slidably attached to the legs of the opposite frame. The slidable attachment is by means of pairs of pins that are secured to one end of the pivoting shelf and are also yoked to longitudinal ridges that are in the legs of the opposite frame. To open the sawhorse from its closed, storage position, the frames are spread apart slightly, thereby allowing gravity to pull the shelf downwardly and concurrently causing the frames to spread outwardly to their open, working position. The sawhorse will stay in this locked open position without any additional latching mechanisms until the close procedure is initiated.Type: GrantFiled: August 8, 2000Date of Patent: December 3, 2002Assignee: Lehigh Consumer Products Corp.Inventors: Rick DuRapau, Joe Dvoracek
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Publication number: 20020166725Abstract: A folding and self-locking sawhorse comprised of two frames connected by the tops 20 and the middle horizontal brace 24 to create a combination of two opposing forces which produce a rigid sawhorse in the open position, but remains collapsible and folds for storage when the two forces are not in opposition. The sawhorse has a clamping top 20 top which can hold items with a compression force created by the expansion force induced by a folding hinged lever 26 against the two side frames. The clamping top 20 accepts tabletops 42 and other items 46 and the locking divergence of the legs 22 can be used to mate the sawhorse with a base 34 for better stability.Type: ApplicationFiled: September 20, 2001Publication date: November 14, 2002Inventor: Donald P. Gulledge
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Publication number: 20020153203Abstract: A storage container having a unique hinge arrangement is provided. The container includes a cover and base portion having hinge portions extending therefrom. The hinge portions are molded from a die configuration that creates adjacent cavities formed vertically and laterally. The hinge portions are arranged such that the cover and base interfit to reveal a continuous passage. A pin is inserted through the continuous passage completing a workable hinge. The storage container includes internal lateral wall sections on the cover and base having tabs extending therefrom. The tabs are configured to accept removable spacers. The spacers include side walls that are contoured such that an object may be easily removed without becoming caught in an angled corner. Transparent lids are releasably latched to the inside of the cover and base. The latches for the lids are located in a position that requires each lid to be locked prior to closing the case.Type: ApplicationFiled: April 23, 2001Publication date: October 24, 2002Inventors: James Pangerc, Gregory Scott Snider
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Publication number: 20020125072Abstract: A sawhorse includes an elongated workpiece supporting structure and a pair of leg assemblies joined to the workpiece supporting structure, which enables the leg assemblies to be moved between a folded position for storage and transportation purposes and an operative position. Connecting structure connects the leg assemblies to retain the leg assemblies in the operative position thereof and to allow movement of the leg assemblies between the operative and folded positions thereof. Each leg assembly includes a pair of separate lower leg members and is mounted for independent movement in a generally vertical direction and adjusted to a plurality of different positions with respect to the associated leg assembly and the connecting structure while the pair of the leg assemblies are retained in the operative position thereof by the connecting structure. A releasable locking member for each leg member is mounted in the connecting structure for movement between a releasing position and a locking position.Type: ApplicationFiled: March 1, 2002Publication date: September 12, 2002Inventor: Roni Levy
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Patent number: 6427804Abstract: A step-up stool comprising a platform and at least three legs extending downwardly from the platform, wherein the length of each leg is individually and/or separately adjustable, and wherein the stool is collapsible to a substantially flat state. The step-up stool, therefore, provides a safe platform on which a tradesman can stand particularly on uneven ground, whilst also being easily collapsible, thereby being easy to carry around and to store.Type: GrantFiled: August 15, 2000Date of Patent: August 6, 2002Assignee: Innovations for Trade and TechnologyInventor: Mark James Lazarus
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Patent number: 6422343Abstract: This collapsible sawhorse is comprised of two substantially identical side panels, a utility tray and links, and a top rail. The side panels, oriented back-to-back, are hinged together near their tops by laterally spaced mutually complementary structures thereon. The top rail fits with limited clearances over the hinging structures for maintaining them together and for distributing top rail loads to the underlying side panels. Loops underlying the top rail are snapped over hidden detent pins on the side panels for holding the top rail and side panels together. The utility tray is hinged to one side panel, and is aligned therewith with the sawhorse closed, and is extended transversely to both side panels and overlies the other side panel with the sawhorse opened; and the links connect the tray midpoint to the other side panel to limit side panel separation of the opened sawhorse.Type: GrantFiled: May 14, 2001Date of Patent: July 23, 2002Assignee: Berg Manufacturing & Sales Corp.Inventors: Joel J. Berg, Stanislau Kuciemba, Stanley H. Berg
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Patent number: 6401865Abstract: A sawhorse with the horizontal rail having an inner chamber housing a plurality of linearly aligned, upwardly projecting work support elements above a laterally moveable skid. The skid has a plurality of linearly aligned upwardly projecting ramps. The ramps elevate the work support members above the rail for supporting workpieces above the rail when the skid is moved in one direction and allow the work support elements to retract into the chamber when the skid is moved in the opposite direction.Type: GrantFiled: March 5, 2001Date of Patent: June 11, 2002Inventor: Gary K. Elwick
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Publication number: 20020038741Abstract: The present invention is a bracket for constructing a sawhorse. The sawhorse constructed with the brackets allows the legs of the sawhorse to fold into a compact unit by having the legs interleave when folded. The legs pivot about a plane that is canted to allow each leg to rotate without interfering with any other leg. The length of the legs are not restricted in any fashion. The legs may also be locked in both the extended, or service position as well as the closed position. The bracket may be constructed of as few as two unique parts, and a pair may be nested together for compact shipping, storage, and display on a store shelf.Type: ApplicationFiled: August 2, 2001Publication date: April 4, 2002Inventor: Russell S. Krajec
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Publication number: 20020011381Abstract: Embodiments of a foldable sawhorse are shown and described, which may be collapsed to a very flat shape, with one of the leg frames fitting inside the central open area of the other so that the two leg frames are co-planar. This way, the two leg frames preferably do not contact each other except at their mutual pivot point(s), and they do not interfere with each other. Preferably, the bottom surfaces of all portions of the sawhorse that touch the ground are broad, smooth, substantially continuous across the whole width of the sawhorse. The bottom surfaces preferably have no protrusions, such as feet, that might promote sinking into the ground or catching excessively on the ground/floor. The preferred sawhorse has one or more platforms that are fixedly attached to their respective parts of the sawhorse in such ways and in such angles that their top platform surfaces are level with the ground or other supporting surface when the sawhorse is unfolded.Type: ApplicationFiled: April 23, 2001Publication date: January 31, 2002Inventor: Destre Wilkerson
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Patent number: 6305498Abstract: A sawhorse includes a base assembly, a workpiece support structure mounted on the base assembly and an attachment for the base assembly in the form of a tool carrier assembly comprising a flexible carrier sheet, a plurality of tool holding elements affixed to the carrier sheet and a plurality of fasteners fixedly affixing the carrier sheet a support member of the base assembly in a configuration providing access to tools held by the tool holding elements. The tool carrier assembly is positioned such that the assembly is below the support surface to allow the surface to support a workpiece without interference from the assembly and such that the tool carrier assembly does not impede movement of the base assembly between closed and open positions.Type: GrantFiled: July 5, 2000Date of Patent: October 23, 2001Assignee: Zag Industries Ltd.Inventor: Guy Itzkovitch
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Patent number: 6298946Abstract: A sawhorse comprises a base assembly including a first base member and a second base member. The first base member has a first top end, and the second base member has a second top end. The second base member is pivotally connected at the second top end to the first top end of the first base member. The first and second bases members are pivotally movable between a folded storage position and an extended operative position. A vertically extendible top member is constructed and arranged to be adjustably mounted in varying vertical positions with respect to the base assembly. The extendible top member includes an elongated, laterally extending top element constructed and arranged to support a workpiece, and a pair of elongated extension elements that are constructed and arranged to be adjustably engaged at varying vertical positions relative to the base assembly so as to adjust the height of the top element.Type: GrantFiled: August 12, 1999Date of Patent: October 9, 2001Assignee: Zag Industries Ltd.Inventors: Zvi Yemini, Eran Noiman
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Patent number: 6283250Abstract: A workbench for use with a workpiece includes a work surface having multiple slots therethrough for securing the workpiece thereto; a pair of spaced apart frames attached to the work surface, wherein each frame includes a pair of legs and a brace structure; wherein the legs each have a groove extending along the length thereof, and which further includes a leg extension adjustably received in the groove for individually and infinitely adjusting the length of each leg.Type: GrantFiled: October 21, 1999Date of Patent: September 4, 2001Inventor: Samuel M. Asher
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Patent number: 6209683Abstract: A sawhorse includes an upper cross member having two ends. A pair of legs is hingedly connected to each end of the upper cross member. Each leg has an upper portion and a lower portion slidingly received by the upper portion. Each leg is therefore independently adjustable in length. There is a latch mechanism on each leg for releasibly latching the upper and lower portion of each leg together. A plurality of spaced-apart steps extend between the legs on each side of the sawhorse. The steps are parallel to the upper cross member. At least one of the steps is removable. Preferably at least one of the steps is removably connected to the lower portions of the legs.Type: GrantFiled: July 22, 1999Date of Patent: April 3, 2001Inventor: Dale Roy Holtz
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Patent number: 6164413Abstract: A sawhorse for supporting workpieces while being worked is provided. The sawhorse includes a pair of sides which are joined at their upper ends for supporting the workpiece and which diverge at their lower ends for stable support of the sawhorse and the workpiece thereon on a horizontal supporting surface, characterized in that the lower end of each of the sides includes vertically-adjustable extension for adjusting the height of the sawhorse.Type: GrantFiled: May 26, 1999Date of Patent: December 26, 2000Assignee: Keter Plastic Ltd.Inventor: Sami Sagol
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Patent number: 6142256Abstract: A folding sawhorse is formed from a pair of substantially identical rectangular frames. The frames are constructed from four substantially identical wooden members via lap joints to make a smooth construction. The frames are also pivotally joined together by a pair of hinges fixedly coupled to top portions thereof. A flexible member or chain extends between the frames, but is displaced from the hinges. The hinges allow for pivotal movement of the frames, while the chain limits the range of pivotal movement.Type: GrantFiled: November 9, 1998Date of Patent: November 7, 2000Assignee: Henry E. Dirk, IIInventor: Henry E. Dirk, II
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Patent number: 6092627Abstract: A stowable knockdown sawhorse can be assembled in two configurations: an operating configuration and a storage configuration. The sawhorse includes a pair of inverted-V-shaped leg members and a saddle having four mounting assemblies--two at each end, one per side. Each leg member has a notched apex that envelops one end of the saddle and is in turn enveloped within an inclined channel formed within each mounting assembly, thereby forming the sawhorse into its operating configuration. Each mounting assembly further defines an exterior bearing surface, the bearing surfaces on like sides of the saddle facing and opposing each other and lying on planes that intersect beyond the saddle working surface to form an angle equal to the apex angle of the leg members. The bearing surfaces are thereby oriented to accept and retain therebetween the leg assemblies when disengaged from the ends of the saddle and inverted between the bearing surfaces to form the sawhorse into its storage configuration.Type: GrantFiled: September 16, 1998Date of Patent: July 25, 2000Inventor: Richard Burger
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Patent number: 6021866Abstract: Disclosed herein is a trestle-type, dual-frame sawhorse including first and second generally rectangular, identical frame members, hinged together along their horizontal top beams, each having depending legs with horizontal leg braces parallel to the top beams. Each leg has a longitudinal slot with a transverse pin which passes through a bound space defined within a rigid, rectangular-framed strut. Each strut has a pair of longer side members and a pair of shorter side members, and is bound by the pins into the slots of both legs of a leg pair. The strut can be moved to a vertical position whereby the legs of the sawhorse are held together, or the strut can be allowed to drop into a horizontal position where it keeps the legs from splaying farther when the sawhorse is under load. Detent notches in the inner surfaces of the strut permit the sawhorse to resist being collapsed back into its folded orientation.Type: GrantFiled: March 21, 1997Date of Patent: February 8, 2000Inventor: Millard Meeks
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Patent number: 6019192Abstract: Glass-carrying trestle made up of a base structure with means to be mounted on the load platform of a vehicle. It is formed by a number of crossbars arranged in two sets withmeans to support/hold the glass to be transported in an upright position and also has means to fold the crossbars at least as regards height (in one set they rise/descend maintaining their horizontality from a lower position--folded--to a higher position--unfolded--and in the other, where the crossbars are joined to the first ones, they tilt with respect to the former between two extreme positions, horizontal folded--and upright--unfolded, respectively.Type: GrantFiled: September 25, 1998Date of Patent: February 1, 2000Assignee: Industrias Laneko, S.A.L.Inventor: Angel Estaun Solano
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Patent number: 6019193Abstract: A sawhorse system that constructed from readily available, rigid plastic tubing and rigid plastic tubing connecters including L-shaped elbows and T-shaped connectors to provide a lightweight sturdy sawhorse that is not subject to damage from the elements and which is collapsible for easy storage.Type: GrantFiled: July 13, 1999Date of Patent: February 1, 2000Inventor: Barbara M. Brown
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Patent number: 5984047Abstract: An erectable horizontal work surface apparatus having a work surface pivotally connected to two sets of legs and removably connected to brace members for the sets of legs. The brace members are removably connected to the legs. When in the assembled position, the legs are extended at an angle somewhat perpendicular to the work surface and one end of the brace members are placed in brace member reception notches so as to connect the brace members to the legs. The opposite end of the brace members are connected to the work surface by use of a removable dowel member. To place the apparatus in a disassembled position, such as for transporting or storage, the dowel member is removed from its reception notch thus allowing the brace members to fall free. The legs are then pivoted toward the work surface until they are placed in a position that is parallel or horizontal with the work surface.Type: GrantFiled: August 18, 1998Date of Patent: November 16, 1999Inventor: William R. Rogers
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Patent number: 5954156Abstract: The adjustable saw horse according to the present invention has a wooden cross beam securely attached within a U-shaped aluminum channel which extends for substantially the length of the wooden cross beam. The cross beam has two supports, one at each longitudinal end of the cross beam, each support having an A-frame shape as the saw horse beam is viewed from an end. Each support consists of a pair of telescoping legs pivotally mounted to brackets on the sides of the aluminum channel, and a brace which is adjustable in length between the pair of legs. Each leg is hollow, tubular, and square in cross section. Each leg has a foot pivotally mounted thereon, the foot having a serrated edge adapted for penetrating the ground in order to firmly anchor the saw horse on sloping ground. The height of the saw horse may be adjusted between thirty-six and seventy-two inches. The saw horse is appropriate for use as a small scaffolding as well as a trestle for general carpentry work.Type: GrantFiled: August 17, 1998Date of Patent: September 21, 1999Inventor: John E. Cooke
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Patent number: 5927436Abstract: A foldable sawhorse/worktable (10) comprising a work platform (12), a pair of scissor side support assemblies (14) and a pair of cross braces (16) horizontally extending between the scissor side support assemblies (14) for stabilization purposes. Structures (18) are for pivotally mounting top ends of each scissor side support assembly (14) to the underside (20) of the work platform (12). It can be placed into a folded position with the work platform (12) vertical to be conveniently stored and can be placed into an unfolded working position with the work platform (12) horizontal to support various types of power tools and all kinds of construction materials.Type: GrantFiled: November 24, 1997Date of Patent: July 27, 1999Inventor: Stephen J Schutz
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Patent number: 5921347Abstract: A new Folding Saw Horse System for facilitating a portable lightweight work aide which allows the user to adjust the work area height, and for providing a compact storage design which is sturdy and stable when expanded. The inventive device includes an elongated support beam, a secured pair of legs secured to one side of the elongated support beam and a folding pair of legs pivotally attached to the secured pair of legs and engaging the elongated support beam on the side opposite of the secured pair of legs when in the expanded position.Type: GrantFiled: August 21, 1997Date of Patent: July 13, 1999Inventors: Oswaldo Rodriguez, Joseph H. Davis
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Patent number: 5878839Abstract: A support device includes a bracket secured on a base for rotatably supporting a roller and for engaging with and for supporting a work piece. A stick is secured in the base and has an orifice for slidably engaging with a rod which is extended downward from the bracket for allowing the bracket to be adjusted to a suitable height. The bracket includes a pair of blocks for slidably receiving a pair of poles. The poles each includes an extension extended upward for engaging with the work piece and for preventing the work piece from moving laterally.Type: GrantFiled: May 1, 1997Date of Patent: March 9, 1999Inventor: Huang Lung Lin
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Patent number: 5865269Abstract: A work support device with adjustable length legs used to stabilize the work support on an uneven bearing surface, that is height adjustable, allowing the user to raise a supported work piece to a desired height, and that is levelable in that the user can adjust the work support to level the work piece being supported. Both the adjustable length legs and the height adjustable upper beam are self locking. Unlocking the height adjustable upper beam to allow downward movement is accomplished with finger pressure on a rod. Unlocking the adjustable length leg is accomplished with finger pressure on a lever. The self locking action occurs immediately upon releasing pressure on either the rod or the lever.Type: GrantFiled: August 20, 1996Date of Patent: February 2, 1999Assignee: Joe D. HillInventor: Byron H. Eskesen
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Patent number: 5839540Abstract: A foldable sawhorse that can be shipped and stored in a small volume. The sawhorse comprises first and second leg assemblies and a plurality of spacing members. The leg assemblies are preassembled at the factory. The spacing members are bolted onto the leg assemblies by the end user. Hinges are formed by tubular hinge members attached to the upper ends of the leg members; the hinge members are either nested one within the other to form the hinge assembly, or separate pin members can be provided that extend through two hinge members. The sawhorse is inexpensive to manufacture and ship but sturdy and flexible in use.Type: GrantFiled: March 7, 1997Date of Patent: November 24, 1998Inventor: Douglass L. Russell
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Patent number: 5803205Abstract: A folding sawhorse including a rigid planar center panel and a pair of hinged rigid planar end panels which can be folded flat against the rigid planar center panel when the sawhorse is not in use and swung into position and locked in place when the sawhorse is in use.Type: GrantFiled: November 8, 1996Date of Patent: September 8, 1998Inventor: Robert C. Kochem
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Patent number: 5794923Abstract: A dressage arena fence module comprising at least two component brackets and at least one component rail. Each bracket comprises a slot to couple the rail to the bracket. Integral with the slot and integral with the rail are cooperating appertures and tabs to releasably lock the rail to the brackets. The fence is an easy to assemble and disassemble modular arena fence system from components which fence may be stacked in sections when assembled. The fence may be anchored to the ground.Type: GrantFiled: March 10, 1997Date of Patent: August 18, 1998Inventor: Michelle Bartlett
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Patent number: 5729215Abstract: A battery operated safety strobe barricade, particularly suited for school crossings. The use of a battery pack that is rechargeable and can be separated from the barricade enables the apparatus to be particularly well suited to safety situations where high visibility and weight are considerations. The A-frame stand section is fabricated from low weight aluminum so that it can be carried by even the smallest crossing guard. The rechargeable battery pack features a dual rate charger so that the unit can be left to charge continuously. The battery pack has a low voltage disconnect feature so that catastrophic battery discharge is avoided thus prolonging the life of the battery. A high visibility strobe light mounted on a telescoping pipe enables the unit, despite its light weight construction, to provide a warning beacon that can be easily seen at great distances, even in the daylight.Type: GrantFiled: August 15, 1996Date of Patent: March 17, 1998Inventor: Richard A. Jutras
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Patent number: 5704450Abstract: A portable and foldable workhorse. A pair of parallel rails includes an open space between the rails, the rails providing a flat top support surface and a bottom support surface. A pair of leg assemblies each includes a top surface. A center beam is attached to each leg assembly so that each center beam is moveable in the open space between said pair of rails. A shaft passes through and perpendicular to the parallel rails and through and perpendicular to the center beam. The shaft pivotally connects each center beam to the rails to allow movement of each leg assembly between a usage position wherein the rail bottom support surface rests on the top surface of the leg assemblies and a storage position wherein the leg assemblies will move radially about a pivot point on the top rails.Type: GrantFiled: September 18, 1995Date of Patent: January 6, 1998Inventor: Harvey Lunceford
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Patent number: 5647455Abstract: A foldable sawhorse comprising first and second leg structures each having a hinge member integrally formed therewith. One of these hinge members is an outer hinge member having a passageway extending therethrough. The other hinge member is an inner hinge member adapted to extend through the passageway in a way that allows the leg structures to rotate relative to each other about a pivot axis. An engaging member is attached to the outer hinge member such that, when the sawhorse is in use, the engaging member is appropriate for engaging a workpiece or other surface to be supported. The hinge members as described above engage each other in a manner that creates a very strong and durable pivot or hinge mechanism. Locking assemblies are employed to fix the sawhorse in an open configuration and allow it to be closed into a closed configuration for storage.Type: GrantFiled: April 28, 1995Date of Patent: July 15, 1997Inventor: Douglas L. Russell
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Patent number: 5628382Abstract: A collapsible sawhorse is provided. The sawhorse includes a plurality of brackets, each bracket including a pair of bracket members and each member having a jaw region and a base region. A pair of crossbars are transversely mounted between the jaw regions of the brackets such that the crossbars are supported by the brackets in generally parallel position. At least one leg is mounted to each base region for supporting the brackets above a surface. The bracket members are each pivotally interconnected for movement between a deployed position, wherein the crossbars are held in relatively close spatial proximity and the legs are relatively spaced apart, and a collapsed position wherein the legs are held in relatively close spatial proximity and the crossbars are relatively spaced apart.Type: GrantFiled: September 29, 1995Date of Patent: May 13, 1997Inventor: Dennis R. Hill
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Patent number: 5626205Abstract: A portable work platform for use in the construction trade which includes a pair of side rails interconnected by a plurality of crossbars and supported by pivotal legs connected to the rails. Disposable edge runners are attached along the upper surface of each rail to protect the rails and crossbars from damage caused by cutting and machining material on the platform surface. In addition, the cross-bars are of a square cross-section to enable workpieces and tools to be clamped to the bars for support.Type: GrantFiled: November 18, 1994Date of Patent: May 6, 1997Inventor: Richard C. Martin