Relatively Movable Patents (Class 182/225)
  • Patent number: 11104554
    Abstract: A foldable gantry comprising a beam and a first leg assembly, the first leg assembly being pivotally mounted at a first end of the beam such that the first leg assembly can move between a first, stowed, position and a second, deployed, position.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: August 31, 2021
    Assignee: REID LIFTING LIMITED
    Inventor: Peter Italiano
  • Patent number: 8439165
    Abstract: A saw horse combination includes two saw horses. Each saw horse has a beam, first and second brackets disposed respectively at the ends of the beam, and legs pivotably attached to the brackets for supporting the beam. A locking mechanism is also provided for connecting the first and second horses. The locking mechanism includes a first latch movably connected to a bracket of the first saw horse, and a second latch movably connected to a bracket of the second saw horse. These latches are movable between a first position where the latches do not engage and a second position where the latches engage.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: May 14, 2013
    Assignee: Black & Decker Inc.
    Inventors: Jason F. Busschaert, James A. Downing, Torrey R. Lambert
  • Patent number: 8439164
    Abstract: A knock-down sawhorse has a support beam supported above a surface by at least two pairs of legs, each pair of legs supporting opposing ends of the beam. The beam has at least four connectors, at least a first pair of connectors arranged on opposing lateral side walls at one end and at least a second pair of connectors arranged on opposing lateral side walls at the other opposing end. Each connector has a tab downwardly depending from a top wall of the beam for engaging an axially-extending recess in an upper end of each leg. Each pair of legs is interconnected by an adjuster for adjusting a lateral spacing therebetween. Manipulation of the lateral spacing between each pair of legs allows a working height of the sawhorse to be manipulated, allowing the sawhorse to be leveled.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: May 14, 2013
    Inventor: Peter Esposito
  • Publication number: 20090288914
    Abstract: A sawhorse includes a pair of identical support members and a connector structure. Each support member includes a pair of spaced apart legs, and an upper work surface for supporting a work-piece. The upper work surface is integrally formed with the legs. Each support member includes an integrally formed hinge portion directly connectable with the hinge portion of the other support member. The connector structure is arranged to connect an intermediate portion of the support members to one another.
    Type: Application
    Filed: May 22, 2008
    Publication date: November 26, 2009
    Applicant: ZAG Industries, Ltd.
    Inventor: Eitan LANDAU
  • Publication number: 20090107767
    Abstract: A support apparatus having a first support element with at least one slot defined therein and a second support element with at least one slot defined therein; and one or more connective structures, wherein the first and second support elements are adapted to be secured together by the one or more connective structures by the disposition of the one or more connective structures within the respective slots of the first and second support elements.
    Type: Application
    Filed: October 29, 2008
    Publication date: April 30, 2009
    Inventor: Kenneth C. Long
  • Publication number: 20090026013
    Abstract: An adjustable and transportable scaffolding (10) is described. It comprises an adjustable leg support mechanism (20) for a scaffolding having vertical corner frame members (11) connected to horizontal frame members (12) and cross-braces (13). The mechanism (20) comprises an open-ended sleeve (21) adapted to receive a support rod (22) therethrough and wherein the support rod has at least a horizontal toothed edge section (23) adapted to secure to a bottom support foot (24). A tooth engaging member (25) is pivotally secured to the sleeve (21) and has a tooth engaging head (26) biased against the toothed edge (23) inside the sleeve (21) for supporting the sleeve about the support rod (22) while permitting upward displacement of the sleeve about the rod. The tooth engaging member (25) can be unbiased from the toothed edge (23) of the support rod (22) to permit downward displacement of the sleeve (21) about the rod (22).
    Type: Application
    Filed: June 7, 2005
    Publication date: January 29, 2009
    Inventors: Daniel Grenon, Marco Robidoux, Richard Boucher
  • Patent number: 7469771
    Abstract: Various embodiments for high directionals and kits for high directionals are disclosed. A high directional having an articulated, separable head is disclosed. A high directional having a height adjustable both by altering the length of the legs and by adjusting the leg connection to the head is disclosed. A kit for a high directional including a head, legs, and multiple sets of feet for the high directional is disclosed. The feet of each set are configured for different surfaces. Another kit for a high directional includes a first head component, a second head component, and a plurality of legs.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: December 30, 2008
    Assignee: Techxotic LC
    Inventors: Rocke P. Thompson, Reed B. Thorne
  • Patent number: 7185738
    Abstract: A work piece support assembly having a primary section and two wing sections that can be arranged in a variety of modular configurations. The sections are hinged to collapse, stack and mount into a compact package for storage or transport. A portion of one set of collapsed legs project to provide a handhold for transport. Bi-axial leg hinge brackets secure the legs to primary and wing rail members. The legs fold between parallel and splayed, ?-shaped alignments relative to each other along a first axis. The legs independently fold along a second axis between orthogonal and parallel alignments to the adjoining rail member. Retainers at the primary leg brackets interlock and contain the wing sections. Fittings at the wing and primary support rail members interlock to provide different geometric support configurations that accommodate tool movement without the necessity of re-orienting a work piece or the primary or wing support sections.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: March 6, 2007
    Inventor: Jerry Clepper
  • Patent number: 6935462
    Abstract: A lightweight and portable, yet strong and stable support device formed from a horizontal support member, a set of leg members, and a collapsible attachment mechanism. The present device is easily modified between its collapsed and support position, thereby providing for efficient and use. In its collapsed position, the device may be easily moved from place to place. In its extended position, the device provides for excellent stability in withstanding sheer and lateral forces with respect to its support frame.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: August 30, 2005
    Inventor: Dennis Remmers
  • Patent number: 6892859
    Abstract: 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: Grant
    Filed: May 8, 2003
    Date of Patent: May 17, 2005
    Inventor: Paul van der Pol
  • Patent number: 6827181
    Abstract: A collapsible and adjustable scaffold unit includes a base frame structure and an upper frame structure. Leg members on the base frame structure are independently adjustable in length and include pivoting feet to compensate for grade change and uneven terrain. The upper frame structure includes a vertical post which removably attaches to the base frame structure to accommodate adjustably positionable brace arms. The brace arms support planks spanning between two or more of the scaffold units to provide an uninterrupted walkway and a continuous workbench above the walkway. Adjusted movement of the brace arms along the vertical post, throughout a range of locked positions, allows the height of the walkway and workbench to be selectively varied according to the needs of the user.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: December 7, 2004
    Inventors: Jack S. Austin, Paul N. Remillard
  • Patent number: 6761249
    Abstract: 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: Grant
    Filed: December 4, 2002
    Date of Patent: July 13, 2004
    Inventor: Raymond Garcia
  • Patent number: 6758307
    Abstract: 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: Grant
    Filed: March 7, 2002
    Date of Patent: July 6, 2004
    Inventor: Allen Ols
  • Patent number: 6712180
    Abstract: 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: Grant
    Filed: March 1, 2002
    Date of Patent: March 30, 2004
    Assignee: Zag Industries Ltd.
    Inventor: Roni Levy
  • Patent number: 6712182
    Abstract: 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: Grant
    Filed: January 10, 2002
    Date of Patent: March 30, 2004
    Inventor: George M. Baker
  • Patent number: 6681895
    Abstract: 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: Grant
    Filed: July 26, 2002
    Date of Patent: January 27, 2004
    Inventor: Keith David Virtue
  • Patent number: 6640930
    Abstract: 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: Grant
    Filed: May 21, 2002
    Date of Patent: November 4, 2003
    Inventors: Larry W. Peters, Larry W. Peters, Jr., James A. Peters
  • Patent number: 6601675
    Abstract: 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: Grant
    Filed: September 20, 2001
    Date of Patent: August 5, 2003
    Inventor: Donald P. Gulledge
  • Patent number: 6488119
    Abstract: 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: Grant
    Filed: August 8, 2000
    Date of Patent: December 3, 2002
    Assignee: Lehigh Consumer Products Corp.
    Inventors: Rick DuRapau, Joe Dvoracek
  • Publication number: 20020166725
    Abstract: 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: Application
    Filed: September 20, 2001
    Publication date: November 14, 2002
    Inventor: Donald P. Gulledge
  • Publication number: 20020153203
    Abstract: 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: Application
    Filed: April 23, 2001
    Publication date: October 24, 2002
    Inventors: James Pangerc, Gregory Scott Snider
  • Publication number: 20020011381
    Abstract: 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: Application
    Filed: April 23, 2001
    Publication date: January 31, 2002
    Inventor: Destre Wilkerson
  • Patent number: 6283250
    Abstract: 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: Grant
    Filed: October 21, 1999
    Date of Patent: September 4, 2001
    Inventor: Samuel M. Asher
  • Patent number: 6209683
    Abstract: 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: Grant
    Filed: July 22, 1999
    Date of Patent: April 3, 2001
    Inventor: Dale Roy Holtz
  • Patent number: 6142256
    Abstract: 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: Grant
    Filed: November 9, 1998
    Date of Patent: November 7, 2000
    Assignee: Henry E. Dirk, II
    Inventor: Henry E. Dirk, II
  • Patent number: 6129180
    Abstract: A sawhorse provided with a pair of supports supporting a horizontal member wherein the supports are angled toward the respective ends of the horizontal member and where the ends of the supports are within the space of the ends of the horizontal member and the supports themselves are made of leg portions and portions which support the underside of the horizontal member and are connected therethrough, the latter section being flat and being at an obtuse angle with said legs.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: October 10, 2000
    Inventor: Troy S. Brady
  • Patent number: 6092627
    Abstract: 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: Grant
    Filed: September 16, 1998
    Date of Patent: July 25, 2000
    Inventor: Richard Burger
  • Patent number: 6070696
    Abstract: An adjustable leg support assembly that includes a cross brace slidably mounted on a center support and projecting laterally therefrom to opposed ends spaced from the center support. An upper clevis is slidably mounted on the center support above the cross brace. A pair of legs each have one end affixed to the upper clevis, a lower end and a center portion affixed to associated ends of the cross brace. An attachment arrangement is selectively mountable at the upper end of the center support for attachment of structure to be supported. The upper clevis may be adjustably affixed to the center support such that the attachment structure on the center support is adjustably positionable with respect to the lower ends of the legs.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: June 6, 2000
    Assignee: Tapco International Corporation
    Inventors: Arthur B. Chubb, Douglas G. Break, Daniel J. Spencer, James E. Suyak
  • Patent number: 6021866
    Abstract: 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: Grant
    Filed: March 21, 1997
    Date of Patent: February 8, 2000
    Inventor: Millard Meeks
  • Patent number: 5954156
    Abstract: 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: Grant
    Filed: August 17, 1998
    Date of Patent: September 21, 1999
    Inventor: John E. Cooke
  • Patent number: 5927436
    Abstract: 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: Grant
    Filed: November 24, 1997
    Date of Patent: July 27, 1999
    Inventor: Stephen J Schutz
  • Patent number: 5839540
    Abstract: 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: Grant
    Filed: March 7, 1997
    Date of Patent: November 24, 1998
    Inventor: Douglass L. Russell
  • Patent number: 5803205
    Abstract: 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: Grant
    Filed: November 8, 1996
    Date of Patent: September 8, 1998
    Inventor: Robert C. Kochem
  • Patent number: 5779003
    Abstract: A work support or sawhorse having a pair of identical but reversed in arrangement brackets at each end of a horizontal rail for supporting legs and each end of the horizontal rail. Each bracket comprises rotatable leg sections for holding the legs and hinges to enable each pair of legs to collapse against the underside of the horizontal rail. The leg sections are outwardly angled providing increased sawhorse stability. Tabs at the top of the leg sections insert into tab slots on the bottom of a hinged top plate for providing a stable sawhorse.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: July 14, 1998
    Inventor: Walter F. Carty
  • Patent number: 5704450
    Abstract: 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: Grant
    Filed: September 18, 1995
    Date of Patent: January 6, 1998
    Inventor: Harvey Lunceford
  • Patent number: 5647455
    Abstract: 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: Grant
    Filed: April 28, 1995
    Date of Patent: July 15, 1997
    Inventor: Douglas L. Russell
  • Patent number: 5626205
    Abstract: 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: Grant
    Filed: November 18, 1994
    Date of Patent: May 6, 1997
    Inventor: Richard C. Martin
  • Patent number: 5560449
    Abstract: An adjustable sawhorse for contemporaneously adjusting both the height and angle of inclination of the support member. The sawhorse utilizes a disk-jaw slip clutch composed of a shaft carrying a pair of inner and outer disks in slideable and rotational relationship. The shaft extends through a transverse cavity in the support member and the support member is interposed intermediately of the disks. A plurality of radially extending jaws extend from the transverse cavity openings in the support member sidewall surfaces for engagement with corresponding radially extending jaws on the inner disks' engagement surface with the support member. Similarly, the outer disks have radially extending jaws which couple with like constructed jaws on the engagement faces of the outer disks. By exertion of a lateral compressive force, the disks and support member may be releasably locked in fixed rotational relationship.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: October 1, 1996
    Inventor: Brian S. Smith
  • Patent number: 5560448
    Abstract: A folding sawhorse including two bases, each of the two bases having a top and at least one leg, a first plurality of spaced U-shaped coupling elements connected to or formed with the top of the first base, a second plurality of spaced U-shaped coupling elements connected to or formed with the top of the second base, complementary to and staggered relative to the first plurality of coupling elements, the tops of the two bases adjoining one another, with the first and second pluralities of U-shaped coupling elements in interlocking relationship, a rod engaged by the first and second pluralities of U-shaped coupling elements, and cover member extending over the first and second pluralities of U-shaped coupling elements and engaged by the rod to retain the tops of the two bases adjoining one another.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: October 1, 1996
    Assignee: Zag Ltd.
    Inventor: Zvi Yemini
  • Patent number: 5538102
    Abstract: An easily storable sawhorse which includes a cross beam and a pair of bases which are rotatable relative to the cross beam. Each of the bases includes a triangular frame and a rotatable member which is connected at its upper end to the cross beam and which has an externally threaded lower end which fits into a recess formed in the top portion of the frame. A nut mounted on the frame engages the externally threaded portion of the rotatable member and connects the rotatable member to the frame while rotation of the nut causes the rotatable member to be raised, permitting the rotation of the bases relative to the cross beam, or lowered to tightly hold the rotatable member and the frame of the base together to provide a steady working surface.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: July 23, 1996
    Assignee: Zag Ltd.
    Inventor: Zvi Yemini
  • Patent number: 5427200
    Abstract: An easily storable sawhorse which includes a cross beam and a pair of bases which are rotatable relative to the cross beam. Each of the bases includes a triangular frame and a rotatable member which is connected at its upper end to the cross beam and which has an externally threaded lower end which fits into a recess formed in the top portion of the frame. A nut mounted on the frame engages the externally threaded portion of the rotatable member and connects the rotatable member to the frame while rotation of the nut causes the rotatable member to be raised, permitting the rotation of the bases relative to the cross beam, or lowered to tightly hold the rotatable member and the frame of the base together to provide a steady working surface.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: June 27, 1995
    Assignee: Zag Ltd.
    Inventor: Zvi Yemini
  • Patent number: 5404962
    Abstract: A collapsible support includes a cross member and a pair of collapsible support brackets having pairs of generally tubular legs extending therefrom. Each support bracket includes a generally planar base member secured to the cross member and a pivotally attached leg carrier. The leg pairs are secured to the leg carrier and are pivotable therewith from extended load bearing positions to collapsed storage or transport positions. A spring lock mechanism is provided which engages a portion of the leg carrier in the extended load bearing position and secures it in a releasable attachment in the load bearing position.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: April 11, 1995
    Inventor: John T. Carter
  • Patent number: 5402860
    Abstract: Configured to resemble a classic sawhorse the invention is formed of rectangular metal tubes and "I" beams that are attached to and contained within a main beam. Side mounted tubes swing out and extend tubular members contained within them. "I" beams extend from the main beam and extend channel beams transverse to the longitudinal axis. Through a series of holes and pins the beam extensions and the supporting legs are adjustable over a wide range.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: April 4, 1995
    Inventor: Daniel L. Fry
  • Patent number: 5372218
    Abstract: A mini portable scaffolding frame having a structure and design such that it can receive and hold a removable extension member. When two scaffolding frames and its extensions are positioned in a spaced apart relation to receive the placement of wooden planks thereon, a scaffolding system is provided which can be used in small indoor areas which normally could not receive standard scaffolding structures. Each of the frame members includes a pair of rectangular sections pivotally mounted to each other. A base member is fixed to each of the rectangular sections for receiving and holding a detachable extension member.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: December 13, 1994
    Inventor: Glen H. Kesler
  • Patent number: 5351785
    Abstract: A folding sawhorse of the type comprising two trestle like frames that are hingedly connected at their tops. Wherein the improvement makes use of a pivoting shelf member for the purpose of controlling the open and close movements of these frames. 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 pins that are secured to one end of the pivoting shelf and are also engaged in longitudinal slots 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 downward 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: Grant
    Filed: November 16, 1992
    Date of Patent: October 4, 1994
    Assignee: Storehorse, Inc.
    Inventor: Kenrick J. DuRapau
  • Patent number: 5215162
    Abstract: A foldable work support apparatus includes an elongated cross beam and first and second leg units each hingedly attached to the cross beam with the upper portion of the leg unit being located beneath the cross beam, the hinged connections permitting the leg units to pivot beneath the cross beam between a use position in which the leg units extend at right angles to the axis of the cross beam and a storage position in which the leg units are coplanar with the cross beam, and latching mechanisms for latching each of the leg units in the use position.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: June 1, 1993
    Inventors: Roby A. Parks, W. Allan Shears
  • Patent number: 5184697
    Abstract: A sawhorse comprising an elongated cross beam for supporting a workpiece, and two leg assemblies each attached to the cross beam by a swivel assembly providing pivotal movement of the corresponding leg assembly between a support position with the leg assembly transverse to the beam and a folded position with the leg assembly aligned with the beam. The swivel assembly includes a foot member nested in a shoe member and these members have cooperating detents and recesses for locking the leg assembly in its respective positions. The nested members are biased toward each other into their locking relationship and are retractable relative to each other for pivotal movement of the leg assembly.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: February 9, 1993
    Assignee: F. Coates Crewe
    Inventors: F. Coates Crewe, James E. Thomas
  • Patent number: 5170861
    Abstract: A quickly foldable and substantially braced sawhorse bracket, to which, in conjunction with a second, like, sawhorse bracket, are attached an elongated top beam 34 and four elongated leg members 36 to create a single, foldable sawhorse; utilizing a flat top beam attachment plate 14 and L-shaped leg attachment angle plates 22 for variety in cross-sectional dimensions of top beam 34 and leg members 36; two almost identical bracket sides 46 of bracket being pivotally joined at two points on top and hingedly joined and braced by a pivotally operating spreader brace 24 attached to lower leg plates 22.
    Type: Grant
    Filed: July 25, 1991
    Date of Patent: December 15, 1992
    Inventor: William D. Turner
  • Patent number: 5119903
    Abstract: A collapsible sawhorse assembly including a cross member having first and second ends, opposing side surfaces, a lower surface and an upper surface for supporting articles. A first and second pair of support legs are adapted to horizontally elevate the first and second ends of the cross member. The support legs each further include attachment ends and ground engagement ends. Means are provided for pivotally securing the attachment ends of the first and second pair of support legs in a generally side-by-side spaced apart relation adjacent the first and second ends, respectively, of the cross member so that the first and second pair of support legs may be moved from an upstanding cross member support position. The legs are generally perpendicular to the cross member while in an erect position, and are generally parallel to the cross member while in a collapsed storage position.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: June 9, 1992
    Inventor: Carl Ulshafer, Jr.
  • Patent number: 5096019
    Abstract: A folding trestle having a movable horizontal work surface spring biased into engagement with the top edges of a skirt. A pair of legs are mounted at each end of the skirt which force the work surface of the trestle away from the top edge of the skirt when the legs are movable to and from their extended and folded positions.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: March 17, 1992
    Inventor: Daniel G. Kelsay