Angle Patents (Class 256/60)
  • Patent number: 10870956
    Abstract: A modular system for separating traffic into discrete zones includes a plurality of rail segments pivotally secured to rail mounts. The mounts are configured for rapid and straightforward coupling of rail segments thereto. Moreover, the mounts may be quickly installed and de-installed from a road surface. The overall system therefore provides a physical barrier system that is easily installed and easily modifiable into desired arrangements. Its modular construction of any number of a plurality of distinct rail segments further facilitates customized channelizing design.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: December 22, 2020
    Assignee: Studio5051, LLC
    Inventor: Howard Marshall Merriam
  • Publication number: 20120326108
    Abstract: A handrail system comprising a top rail (50) and one r more support posts (25). The rail and post/s may be formed from a synthetic material such as a fibre reinforced plastics material.
    Type: Application
    Filed: February 2, 2011
    Publication date: December 27, 2012
    Applicant: PIPEX STRUCTURAL COMPOSITES LIMITED
    Inventors: Simon Eves, Matthew John Hewstone
  • Patent number: 8302937
    Abstract: Pedestrian barricade assembly includes a plurality of uprights and associated guide rails. Each upright includes a front section having one or more transversely extending channels. Each of the channels has a pair of laterally spaced semi-circular flanges in upper and lower side walls of the channels that are slidably engageable by upper and lower open notches adjacent end portions of the guide rails to provide hinge connections therebetween.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: November 6, 2012
    Assignee: Plastic Safety Systems, Inc.
    Inventors: Charles M. Mettler, Gregory H. Brown
  • Patent number: 8074969
    Abstract: A reconfigurable gate includes a first fence section, a section fence section and third fence section. The first fence section includes a plurality of first cross members. The second fence section includes a plurality of second cross members. The third fence section includes a plurality of third cross members. The first fence section and the second fence section are rotatably attached to the third fence section such that when the gate or fence is in a fully collapsed configuration, the plurality of first cross members and the plurality of second cross members are substantially interleaved with the plurality of third cross members.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: December 13, 2011
    Assignee: Merry Products Corporation
    Inventors: Melody Lee, Kevin Xin, Lawrence Chun Hei Chu
  • Patent number: 8056885
    Abstract: A railing system includes a set of vertically disposed baluster assemblies and a plurality of railing members. The baluster assemblies include a lower base member receiving a pair of opposing vertical plates. Each of the pairs of plates have opposing aligned pairs of throughbores, each pair movably holding therein one of a set of insert members. Railing members each slide through adjacent pairs of insert members to form a wall of spaced apart railing members. Each railing member passes through the insert members in each of the baluster assemblies and the insert members holding the railing member pivot to align member throughbores at an angle from horizontal that is dependent upon a vertical difference of adjacent ones of the fixed base members.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: November 15, 2011
    Inventor: Frederick J. Sandor, Sr.
  • Publication number: 20110101296
    Abstract: Pedestrian barricade assembly includes a plurality of uprights and associated guide rails. Each upright includes a front section having one or more transversely extending channels. Each of the channels has a pair of laterally spaced semi-circular flanges in upper and lower side walls of the channels that are slidably engageable by upper and lower open notches adjacent end portions of the guide rails to provide hinge connections therebetween.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 5, 2011
    Inventors: Charles M. Mettler, Gregory H. Brown
  • Patent number: 7913983
    Abstract: In a preferred embodiment, an apparatus, including: a plurality of members disposed inside generally vertical balusters; each of the members having formed therethrough a hole; a plurality of wires, cables, rods, pipes, tubes (round, oval, or multi-sided) or the like, each one disposed through one of the holes; and the members being rotatable to position the wires, cables, rods, pipes, tubes (round, oval, or multi-sided), or the like at a selected angle from horizontal.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: March 29, 2011
    Inventor: Frederick J. Sandor, Sr.
  • Patent number: 7530549
    Abstract: A curved railing system that does not use curved infill panels and has a continuous curved top rail. It uses a series of posts that follow the desired curve. The posts have a bottom rail and space to hold infill panels that may be glass, solid panels, perforated panels, vertical pickets, or cables. All of these infill panels are straight panels that are not curved. A special post cap is installed on the posts. The post cap has pivoting articulating brackets that are used to support and align glass channels. The top rail is a continuous length of railing that matches the desired curve. The top rail is placed over the posts and glass channels. In this way, the entire assembly produces a curved rail design at a lower cost and with less labor than a conventional curved rail.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: May 12, 2009
    Inventors: Tracy C. Hansen, Lucas Gregg
  • Patent number: 7500655
    Abstract: An adjustable gate bracket apparatus and system. The apparatus typically includes a front bracket portion and a rear bracket portion. The front bracket portion includes a generally first rectangular planar body pivotally connected to a second rectangular planar body integrally connected to a curved planar body. The rear bracket portion typically includes two rectangular planar bodies pivotally connected to each other at respective corners. The ends of uprights and rails are connected between the front and rear bracket portions and secured together with rivets, bolts or other suitable. An adjustable gate bracket is secured at each corner of the gate panel. The gate panel is then adjusted to a desired angular orientation on a hill or other contour. Once the desired configuration is attained, the front and rear portions are fixed so that they do not pivot and the gate retains its angular orientation.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: March 10, 2009
    Inventors: Frederick L. Smith, Jimmy H. Smith
  • Patent number: 7475870
    Abstract: A mounting attachment for connecting a picket to an angled rail. The mounting attachment comprises a base having an aperture therethrough and into which the picket is inserted. A spring-biased retaining member is provided on the base and is adapted to engage an outer surface of the picket when it is inserted into the aperture. The retaining member urges the picket into contact with the wall of the base which defines the aperture, thus preventing the picket from moving within the aperture and substantially parallel to the longitudinal axis of the rail.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: January 13, 2009
    Inventor: Robert E. Platt
  • Patent number: 7267324
    Abstract: An interlocking steel fencing system having posts and rails made from tubular steel, the posts and rails being either round or rectangular in shape, the posts having openings therein which correspond with the shape of a rail designed to be inserted therein, the end posts being provided with openings only on one side thereof, while in-line posts are provided with openings parallel to one another and corner posts are provided with openings in ninety-degree relation to one another, the end posts and corner posts being provided with spacer bars therein with which the rails are firmly abutted during assembly, and these posts being further provided with a locking cap to prevent removal of the spacer bars, the fencing system designed to be assembled such that each rail abuts the adjacent rail at a central location within the post or, on an end or corner post, abuts a spacer bar within the post and wherein the post openings are slightly larger than the rails to allow the fencing system to traverse uneven topography.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: September 11, 2007
    Inventor: Warren F. Young
  • Patent number: 7128308
    Abstract: Components and a system for limiting access and egress. A properly scaled barrier of the present invention meets varied requirements for applications that include: security, safety, order, privacy, and discipline. In one embodiment, pre-manufactured panels and connectors are delivered to a site that has been prepared for installation of the system. Local materials may be used for the panels in some cases. The panels and connectors can be assembled quickly by unskilled labor and, in some embodiments, the barrier just as quickly dismantled or repaired as necessary. One embodiment may be used as a temporary or emergency solution to access control while another may employ in-fill material to provide a permanent barrier. Another embodiment may be used in a residential setting, providing storage in some installations. In all embodiments, accessories for enhancing effectiveness may be installed on or within the barrier.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: October 31, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Charles P. Marsh, Charles C. Lozar, Brian Temple
  • Patent number: 7086642
    Abstract: A rackable gate having a gate panel with spaced-apart rails connected to a plurality of first pickets and a second picket. The second picket attaches to the respective rails on a side edge opposing the attachment of the first pickets to the rail. Distal opposing ends of the rails are received and pivotally secured in openings defined in opposing gate posts. The gate racks or moves so that the rails are disposed at an oblique angle relative to the pickets. The opposing fastening of the second picket and the opposing distal end of the rail received in the post restrict the rail from pivoting away from the pickets when the panel is racked to track the contour of the terrain. A method of making a rackable gate is disclosed.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: August 8, 2006
    Assignee: XFM, Inc.
    Inventor: James R. O'Brien
  • Patent number: 6905110
    Abstract: A modular railing system supports a plurality of rails in vertically-spaced configuration. The railing system includes a plurality of baluster units arranged between rail sets to support the rails. The baluster units include a plurality of rail supports grouped into double barrel support pairs or single barrel support pairs. The baluster units may include a short section of kick rail, and longer sections of kick rail may extend between adjacent baluster units. Also, additional rails may be joined to the modular railing system using baluster extensions or extender bars. A stair rail adjuster may be used, particularly when railing staircases, to permit adjustment of the relative vertical height of one end of a rail. To attach rails and balusters to stair treads, a finished-stair-tread adapter may be used.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: June 14, 2005
    Inventor: Alexander Brown
  • Publication number: 20040211952
    Abstract: A handrail assembly 1 for a staircase or the like comprises a base rail R and a handrail 2 each preferably having at least one substantially flat surface (2a, FIG. 18), at least one upright post 3 and a bracket 4 to connect one rail 2 to the upright post 3, the post-to-rail bracket 4 having a base 40 for engagement with the substantially flat surface (2a, FIG. 18) of the rail 2 and a deformable portion 45 to accommodate different inclinations of the rail 2 relative to the post 3. An assembly 1 may further comprise a connector 5 to interconnect the handrail 2 with a rail 6, the connector 5 preferably having a first hollow portion with an internal cross-sectional shape to match the cross-section of the handrail 2, the handrail 2 extending at least partially into the first hollow portion.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 28, 2004
    Applicant: Richard Burbidge Limited
    Inventors: Lloyd Paul Barnes, Paul Hughes, Anthony Trevor Jones
  • Patent number: 6698725
    Abstract: A slotted cap for a corner or support post of a fence, particularly a chain link or “Cyclone” (trademark) or “Hurricane” (trademark) fence. In a preferred embodiment, the slotted fence post cap includes a cylindrical cap wall which is mounted on the upper end of the vertical fence post, and a horizontal adjusting slot is fitted on one side and a fixed nipple is fitted on the opposite side of the cap wall. The fixed nipple receives the horizontal top rail of a fixed fence segment or run, and the adjusting slot is fitted with an adjustable nipple which receives the top rail of an adjustable fence segment or run in construction of the fence. The adjustable nipple is typically bolted to the cap wall at the adjusting slot, and the bolt can be loosened to facilitate adjustment of the adjustable nipple and attached adjustable fence segment into a selected angular relationship with respect to the fixed fence segment.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: March 2, 2004
    Inventor: Tracy L. Berry
  • Patent number: 6612551
    Abstract: An extruded plastic sheath product is provided to cover studded steel T-posts and hence give fence lines or sign posts and improved, even aesthetic appearances. The plastic sheath product is formed with a series of internal projections which abut against features of the internal T-post and hence prevent the sheath from spinning about the T-post. For the fence line filed of use, the plastic sheath product is further given an external spine which has formations or else studs formed in it to prevent fence wire strapped to the sheath from slipping. For the sign post field of use, the sheath is further provided with a series of coupling accessories in order to construct frames and the like. Such coupling accessories optionally include Ell's, Tee's, crosses, or y-shaped splitters. The shape and arrangement of the extruded tubular sheath is especially designed to accommodate certain shape anomalies which result from the extrusion process.
    Type: Grant
    Filed: October 20, 2001
    Date of Patent: September 2, 2003
    Assignee: Outdoor Technologies, L.L.C.
    Inventor: Christopher H. W. Roy
  • Patent number: 6494438
    Abstract: Plastic railing systems include extruded hollow fiberglass reinforced top and bottom rail sections and newel posts, and hollow plastic balusters having locking tabs on one end adapted to be snap locked into mounting holes in a bottom wall of the top rail section. The locking tabs are retained within the mounting holes by retaining lips protruding from a front edge of the locking tabs into overlying relation with an inner surface of the bottom wall of the top rail section surrounding the holes. At the bottoms of the balusters are dowels that are adapted to be received in predrilled holes in a top wall of the bottom rail section and secured in place as by driving fasteners through predrilled pilot holes in a bottom wall of the bottom rail section into the dowels. Rake balusters are made by filling the balusters with a rigid high density plastic foam material and cutting off the ends of the balusters at the desired rake angle for attachment to the top and bottom rail sections using suitable fasteners.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: December 17, 2002
    Assignee: CW Ohio, Inc.
    Inventors: Nicholas N. Noirot, John S. Schatz
  • Patent number: 6345475
    Abstract: Pivotably mounted barriers extending across a portion of and staggered in an alternating manner from opposite sides and spaced apart as to permit directed travel up or down stairs or staircase. Barriers extend across staircase to the extent that in addition to acting as an aid in ascending or descending, should a person stumble or lose their footing, their fall would be interupted within a few feet instead of tumbling all the way to the bottom suffering certain injury and possible death.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: February 12, 2002
    Inventor: Kevin Darnell Flory
  • Patent number: 6330998
    Abstract: An extruded plastic sheath product is provided to cover studded steel T-posts and hence give fence lines or sign posts and improved, even aesthetic appearances. The plastic sheath product is formed with a series of internal projections which abut against features of the internal T-post and hence prevent the sheath from spinning about the T-post. For the fence line filed of use, the plastic sheath product is further given an external spine which has formations or else studs formed in it to prevent fence wire strapped to the sheath from slipping. For the sign post field of use, the sheath is further provided with a series of coupling accessories in order to construct frames and the like. Such coupling accessories optionally include Ell's, Tee's, crosses, or y-shaped splitters. The shape and arrangement of the extruded tubular sheath is especially designed to accommodate certain shape anomalies which result from the extrusion process.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: December 18, 2001
    Assignee: Outdoor Technologies, L.L.C.
    Inventor: Christopher H. W. Roy
  • Patent number: 6231031
    Abstract: Top and bottom rails for an outdoor railing system, include a plurality of equally spaced recesses defined in a side of the rails into which spindle ends are fitted. Each of the recesses comprises a multi-sided configuration having an open side defined through an inward edge of the rails so that spindles having a complimentary shaped end can be pressed into the recesses from the sides of the rail.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: May 15, 2001
    Assignee: Spartanburg Forest Products, Inc.
    Inventors: Stephen W. Michael, John M. Pastore, James R. Hall, Jr.
  • Patent number: 6145814
    Abstract: A device for mounting a handrail element on a post for producing a stair railing and the like has bearing surfaces provided on the handrail elements, spaced in a longitudinal direction, and forming a gap, a rotary part provided on an end on the post and rotatably supported with a cylindrical part of a peripheral surface in a side of the bearing surfaces which faces the handrail element, the rotary part having a portion connected with the post by the gap, the bearing surfaces being formed on a separate structural part which is releasably connectable with the handrail element, the rotary part being formed as a separate structural part which is releasably connectable with the post.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: November 14, 2000
    Assignee: Hewi Heinrich Wilke GmbH
    Inventor: Phillipe Perrot
  • Patent number: 6017019
    Abstract: A modular railing including a plurality of upright posts and a plurality of composite hand rails extending between adjacent ones of the upright posts. The composite handrails each include a plastic outer shell and an internal metal reinforcing element extending longitudinally within the plastic shell. A plurality of lower rails extend between adjacent ones of the upright posts and a plurality of composite spindles extend between the lower rails and the handrails. A plurality of brackets couple the handrails and the lower rails with the upright posts. The brackets are adapted to be slipped over end portions of the handrails and over end portions of the lower rails and to be fastened to the upright posts. Preferably the brackets are made of metal and have a shaped opening matching a cross-sectional profile of the handrails to allow the brackets to be slipped over the end portions of the handrails. The brackets include flanges to allow the brackets to be fastened to the upright composite posts with fasteners.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: January 25, 2000
    Assignee: Erwin Industries, Inc.
    Inventor: Ronald D. Erwin
  • Patent number: 5964452
    Abstract: A combined mounting and blanking spigot for providing fixing between a rectangular cross-section tubular rail and a post, comprising a solid member having a height and width slightly less than that of the interior dimensions of the rail and a length sufficient to blank a gap between the rail and post. One end surface is planar for attachment to the post and one side surface is planar, the other end and other side surfaces being formed to be arcuate or cut away at their adjacent corner. An aperture is formed vertically through the spigot at substantially the midpoint of the upper surface area thereof. A railing unit having at least two rails attached to a post by the spigots is also disclosed.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: October 12, 1999
    Inventor: Dennis Arthur Summers
  • Patent number: 5699997
    Abstract: A connection device for a playyard consists of a handle and two connectors. The handle is provided integrally with a block and a plurality of protrusions having a hole therein. A pair of connectors is each provided with a plurality of spaces for receiving supports and a projecting portion having a pin stably secured therein or pivotally connected with the protrusion. When the handle is connected with the connectors by a fastener, and a holding portion is in horizontal position, the connectors are not able to be folded because of the restriction of the block within two stops of the connectors, and when the holding portion is in vertical position, two connectors are able to be folded together.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: December 23, 1997
    Inventor: Li-chu Chen Huang
  • Patent number: 5507473
    Abstract: A guard rail post is molded from a plastic recycled material which is reinforced with a vertical and a horizontal reinforcing member embedded within an L-shaped plastic body.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: April 16, 1996
    Assignee: Hammer's Inc.
    Inventors: Floyd V. Hammer, Brian Harper
  • Patent number: 5452880
    Abstract: The present invention relates to a coupling (10) for connecting railing members (170, 171) to post (14, 15). The coupling (10) has a mounting portion having two parts (16, 117) pivotally movable relative to one another and capable of being locked against pivotal movement by a fastener (35, 113). Railing connection members (22, 25) are pivotally coupled to parts (16, 17) about axes (24, 26) extending transversely of the members and to an axis (20) about which the parts (16, 17) may pivot relative to one another.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: September 26, 1995
    Inventor: William Bailey
  • Patent number: 5277408
    Abstract: A fence frame is disclosed that preferably comprises galvanized steel posts that provide an accessible flat surface or surfaces parallel with the surface of the transverse railings and through which are applied holding bolts for securing the post to adjoining ends of railing sections. The posts include at least one strengthening vertical bend. One post structure employs a tubular post support joined to the fence railing sections using a tubing-clamp-and-rail-hanger combination that allows the tubing surface to be firmly held by a piece that integrally has suitable flat-sided structures for attaching to the adjacent railing sections. Corner posts employing the same basic structure as the in-line posts or specifically designed posts are provided. The fence frame comprised of posts and railings are suitable for receiving a fence covering made up of aluminum sheet panels, plastic panels, wood pickets, plastic pickets, metal rods or other coverings of choice.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: January 11, 1994
    Inventor: Alton B. Parker
  • Patent number: 5230500
    Abstract: A balustrade including a handrail supported on a row of balusters, each of which is attached with two cross bars at different heights, and a plurality of vertical axles respectively connected to the cross bars between each two adjacent balusters by connectors, wherein each connector has a transverse rod on one end respectively and movably inserted into an axial hole on the respective cross bar, and an axle hole on an opposite end at right angle to the axial hole and through which a respective vertical axle is inserted and secured in place by a tapping screw.
    Type: Grant
    Filed: June 20, 1992
    Date of Patent: July 27, 1993
    Inventor: Ta-Chin Lin
  • Patent number: 5136770
    Abstract: Corner modules have recessed, handrail-receiving mounting pockets bounded top and laterally by non-recessed boundary edge portions, but open at their bottom ends, and vertically taller than the end face of the handrail interval of steepest incline. The mounting pockets of the corner modules are factory-produced with very neatly made edges, whereas the end faces of handrail intervals are cut on-site for a particular installation, and tend to have cutting imperfections at the end face edges, such as chips, splinters, burring, edge waviness, etc. The handrail intervals, having underfaces with longitudinal slots, are mounted on baluster tops provided with articulate flanged connectors having tabs fitting firmly but slidably into the underface slots; thus the handrail intervals can be adjusted until they assume their needed relative positions, whereupon screws passing through holes in the flanged connectors penetrate the handrail underface deep within an underface slot.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: August 11, 1992
    Inventor: Hans Kenngott
  • Patent number: 4989689
    Abstract: A yard guard is disclosed which may be attached to a gable roof just above the eaves on a house that is to be re-shingled. The yard guard is a frame L-shaped in cross section with a guard rail to prevent old roofing material from falling from the roof onto shrubbery, grass and flowers to prevent damage and to save time in cleaning up.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: February 5, 1991
    Inventor: Evan H. Berlin
  • Patent number: 4979725
    Abstract: A triangular frame assembly is disclosed for supporting a safety barrier of boards above the edge of a roof during construction. The triangular assembly employs pivotal connections between a base and a lower stanchion member, between the base and a diagonal brace, and between the diagonal brace and an upper stanchion member telescopically connected to the lower stanchion member. The angle between the stanchion and the base can be adjusted to accommodate a wide range of roof pitches by varying the telescopic engagement of the upper and lower stanchion members. The range of roof pitch angles for which the frame assembly can be used is increased by making the upper stanchion member invertable, adapting both ends thereof to alternatively telescopically engage the lower stanchion member, and by providing for an off-center brace connection to the upper stanchion member.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: December 25, 1990
    Assignees: Michael J. Quigley, James R. Bartlett
    Inventors: Robert L. Hutchings, II, James R. Bartlett
  • Patent number: 4733851
    Abstract: A foldable fence including a plurality of fence sections pivoted of posts therebetween, each section comprising spaced apart rails that interfit at their ends with the ends of adjacent sections.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: March 29, 1988
    Inventor: Paul J. Weiss
  • Patent number: 4508320
    Abstract: A total fence system for wire mesh fences is disclosed. An angle iron post which may serve as a gate, terminal or corner post is utilized. The post includes staples, preferably stamped out lancings which accommodate a slide-in tension bar. The tension bar is inserted intermittently in the wire mesh lancings where it is held fast. A post cap, preferably with slots to accommodate the tension bar ends and which also includes apertures for a top rail, is also disclosed. A unique channeled slug connector is utilized to connect top rail and line post by sliding part of the slug into a slotted top rail and allowing the other part to drop into the hollow line post. Further embodiments adapt the fence system to industrial applications where, for example, barbed wire is an included feature.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: April 2, 1985
    Inventor: Bernard L. Hegarty
  • Patent number: 4408749
    Abstract: Balusters and rails are angularly adjustable after their assembly to fit the different pitches of stairways.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: October 11, 1983
    Assignee: Mansion Industries, Inc.
    Inventor: Steven A. Zieg
  • Patent number: 4240615
    Abstract: A fence post comprising male and female members. Each member has a circumferential transverse shape of a portion of a plane geometric figure. A key on the male member is slidingly interlocked with a keyway on the female member to connect the members together. Fence rails are attached together via the fence post, and one of the fence post members can be inverted to alter the orientation of fence rails with respect to each other. Zig-zag fence configurations can thus be defined as easily as straight line fence configurations.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: December 23, 1980
    Assignee: Dura-Bilt Products, Inc.
    Inventor: Raymond W. Sickler