US20040055245A1 - Wall cap corner aid - Google Patents

Wall cap corner aid Download PDF

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Publication number
US20040055245A1
US20040055245A1 US10252478 US25247802A US2004055245A1 US 20040055245 A1 US20040055245 A1 US 20040055245A1 US 10252478 US10252478 US 10252478 US 25247802 A US25247802 A US 25247802A US 2004055245 A1 US2004055245 A1 US 2004055245A1
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US
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Patent type
Prior art keywords
aid
leg
metal
corner
wall cap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10252478
Inventor
Kent Fitch
Original Assignee
Fitch Kent C.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04Bases for plaster
    • E04F13/047Plaster carrying meshes
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04Bases for plaster
    • E04F13/06Edge-protecting borders
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/18Balustrades; Handrails
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00Other details of constructional parts for finishing work on buildings
    • E04F19/02Borders; Finishing strips, e.g. beadings; Light coves
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04Bases for plaster
    • E04F13/06Edge-protecting borders
    • E04F2013/063Edge-protecting borders for corners

Abstract

The present invention is a wall cap corner aid, in particular for use with stucco and/or plaster. The preferred embodiment of the invention is made from a metal lattice structure, preferably metal lath. The wall cap corner aid has a first leg joined to a concave center span at a metal edge corner. The corner is a discontinuity in the metal lattice structure made of smooth metal. A second leg is joined to the concave center span at a second smooth metal edge corner. Furthermore, the legs are preferably flexibly biased towards one another for mounting onto a base such as wall cap or a railing.

Description

    TECHNICAL FIELD
  • The present invention is a wall cap corner aid, in particular for use with stucco and/or plaster. [0001]
  • BACKGROUND ART
  • Generally, a person installing lath for plaster or stucco application on a wall or railing cap must install wire mesh on top of the cap and two separate welded wire corner aids or expanded metal corner beads to form the shape and provide grounds for the plaster or stucco. The wire and metal “u” shaped corners must be nailed on the top and sides of the opposing corner edges of the top of the wall or railing, generally a 2×4. This prior art wall cap creates a corner and top surface for plaster or stucco to be placed on the side and top of the wall. [0002]
  • Several common problems can occur with the prior art method and devices. For example, nails must be driven into the top of the wall and penetrate any waterproof membrane on the top of the wall. This can allow water to infiltrate through the membrane to the underlying wood framing. In turn, the wood framing can buckle, twist, warp and wrought causing cracking and de-lamination of the stucco/plaster system. Water protrusion can also cause discoloration of the stucco/plaster. [0003]
  • Another common problem associated with the prior art method and devices describe above is that the wire mesh can become flattened thereby eliminating the mechanical key needed for plaster/stucco to bond to lath or wire mesh. This can also cause de-lamination of the system. [0004]
  • Prior installations could also be problematic. For example, it is desirable for one screed edge to remain perpendicular to the other screed edge and for the depth or plaster ground to be consistent. The prior art mesh corner aids require significant time and effort to install and level with regard to these issues. Accordingly, an improved wall cap corner air that is easy to install, reduces cracking in the plaster or stucco, and does not need to be nailed on the top of the wall or railing is desired. [0005]
  • SUMMARY OF THE INVENTION
  • The present invention is a wall cap corner aid, in particular for use with stucco and/or plaster. The preferred embodiment of the invention is made from a metal lattice structure, preferably metal lath. The wall cap corner aid has a first leg joined to a concave center span at a metal edge corner. The corner is a discontinuity in the metal lattice structure made of smooth metal. A second leg is joined to the concave center span at a second smooth metal edge corner. Furthermore, the legs are preferably flexibly biased towards one another for mounting onto a base such as wall cap or a railing.[0006]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The objects and features of the present invention, which are believed to be novel, are set forth with particularity in the appended claims. The present invention, both as to its organization and manner of operation, together with further objects and advantages, may best be understood by reference to the following description, taken in connection with the accompanying drawings. [0007]
  • FIG. 1 is a side view of a preferred embodiment of the invention as installed. [0008]
  • FIG. 2 is a perspective view of a preferred embodiment of the invention. [0009]
  • FIG. 3 is a side view of a preferred alternate embodiment of the invention for a plaster relief aid. [0010]
  • FIG. 4 is a side cross-sectional view of a preferred embodiment of the invention installed on a railing. [0011]
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • The following description is provided to enable any person skilled in the art to make and use the invention and sets forth the best modes contemplated by the inventor of carrying out his invention. Various modifications, however, will remain readily apparent to those skilled in the art, since the general principles of the present invention have been defined herein specifically to provide an improved wall cap corner aid. [0012]
  • Referring now to FIG. 1, a preferred embodiment of a wall cap corner aid [0013] 10 is shown. The aid 10 is installed on a 2×4 cap 50 at the top of a wall 55 (or railing) to aid in the application of plaster or stucco to the wall. The aid 10 preferably has an M-shaped cross section as shown. In general, the aid 10 should have two legs 15, 20 joined by a concave central span 30.
  • Preferably, the legs [0014] 15, 20 are flexibly biased towards one another so that the legs 15, 20 can cling to the wall 55 to which the aid 10 is mounted. Alternately, or additionally, the legs 15, 20 of the aid 10 can be nailed to the cap 50. The aid 10 does not need to be nailed to the top of the cap 50. Furthermore, the inward slope of the legs 15, 20 creates a clearance 60, or “ground”, for application of plaster or stucco. The clearance 60 is typically ⅞th of an inch.
  • FIG. 4 shows an example of the aid [0015] 10 mounted to a railing 90 of a balcony at a house 100. The aid 10 can be used, inter alia, to cap walls, railings and other plaster or stucco structures.
  • Referring to FIG. 2, a perspective view of a preferred embodiment of the invention [0016] 10 is shown. The aid 10 is preferably of unitary construction and made from a metal lattice structure such as metal lath. The metal lath is generally made from galvanized expanded metal that has been bent to the desired shape. Alternatively, the aid 10 can be constructed from, inter alia, plastic, woven wire and/or welded wire. The legs 15, 20 are joined to the concave central span 30 at edge corners 17 and 22, respectively. Preferably, the corners are smooth (e.g. non-expanded) metal edge corners, each forming a discontinuity in the lattice. The non-expanded metal portions are set apart a predetermined distance so that they will form the smooth edge corners when the metal is bent to form the desired shape. The smooth corners are for screeding and reduce the potential for cracking in the plaster or stucco.
  • Referring to FIG. 3, a side view of an alternate embodiment is shown. Often, decorative features are applied to plaster or stucco walls. The designs are typically in relief from the wall's surface. The features are often referred to as “pop-outs” in the trade. Accordingly, the present invention can be used as an aid for forming relief surfaces or “pop-outs.” FIG. 3 depicts an aid [0017] 110 mounted to a base 140. Preferably, the aid 110 is similar in construction to the wall cap corner aid 10 described above. However, the aid 110 preferably further comprises a mesh grip 145 at the end of each leg 115, 120. The legs 115, 120 and mesh grips 145 grip the base 140 by the flexible bias of the expanded metal lath. The base 140 is preferably made of a light material that is easy to manipulate such as polystyrene, e.g. Styrofoam®, or some other light plastic. The aid 110 and base 140 can then be mounted to a wall to aid in forming a relief design.
  • The aid [0018] 110 and base 140 allow for more durable “pop-outs” via the complete covering of the “pop-out” with plaster or stucco, generally ⅞″. The improved “pop-out” also reduces the likelihood of water intrusion associated with prior art wood or foam-mesh pop-outs.
  • Thus, a wall cap corner aid, in particular for use with stucco and/or plaster is described above that reduces or eliminates common problems associated with plaster and stucco structures such as cracking and installation difficulties. The aid is relatively easy to install and level and it reduces the chance of cracking in plaster and/or stucco. In each of the above embodiments, the different positions and structures of the present invention are described separately in each of the embodiments. However, it is the full intention of the inventor of the present invention that the separate aspects of each embodiment described herein may be combined with the other embodiments described herein. Those skilled in the art will appreciate that adaptations and modifications of the just-described preferred embodiment can be configured without departing from the scope and spirit of the invention. Therefore, it is to be understood that, within the scope of the appended claims, the invention may be practiced other than as specifically described herein. [0019]

Claims (15)

    What is claimed is:
  1. 1. A wall cap corner aid for stucco and plaster comprising an M-shaped lattice having two legs where each leg is flexibly biased toward the other leg.
  2. 2. The wall cap corner aid of claim 1 where the M-shaped lattice further comprises two edge corners and an interior corner; the two edge corners each having a smooth surface and comprising a discontinuity in the lattice.
  3. 3. The wall cap corner aid of claim 1 where the lattice is metal lath.
  4. 4. The wall cap corner aid of claim 2 where the lattice is metal lathe and the two edge corners are made of smooth metal.
  5. 5. The wall cap corner aid of claim 4 where the wall cap corner aid has a unitary construction.
  6. 6. A wall cap corner aid comprising two legs joined by a concave center span having a lattice structure; where each leg has a lattice structure and is flexibly biased toward the other leg.
  7. 7. The wall cap corner aid of claim 6 where the two legs and the concave center span are made from metal lath.
  8. 8. The wall cap corner aid of claim 7 where each leg is connected to the concave center span at a smooth edge corner.
  9. 9. The wall cap corner aid of claim 8 where each smooth edge corner is metal and represents a discontinuity in the lattice structures of the leg and the concave center span.
  10. 10. A wall cap corner aid having a metal lattice structure with a first leg joined to a concave center span at a first smooth metal edge corner comprising a first discontinuity in the metal lattice structure; and a second leg joined to the concave center span at a second smooth metal edge corner comprising a second discontinuity in the metal lattice structure.
  11. 11. The wall cap corner aid of claim 10 where the first leg is flexibly biased toward the second leg and the second leg is flexibly biased toward the first leg.
  12. 12. A relief structure comprising:
    a relief aid having a metal lattice structure with a first leg joined to a concave center span at a first smooth metal edge corner comprising a first discontinuity in the metal lattice structure; and a second leg joined to the concave center span at a second smooth metal edge corner comprising a second discontinuity in the metal lattice structure;
    whereby the relief aid is mounted to a base.
  13. 13. The relief structure of claim 12 where the relief aid further comprises a first grip attached to the end of the first leg and a second grip attached to the end of the second leg; whereby the base is held between first and second legs by the first and second grips.
  14. 14. The relief structure of claim 12 where the base is made of polystyrene.
  15. 15. A house comprising a balcony with a railing capped by a wall cap corner aid; the wall cap corner aid comprising two legs joined by a concave center span having a lattice structure; where each leg has a lattice structure and is flexibly biased toward the other leg.
US10252478 2002-09-23 2002-09-23 Wall cap corner aid Abandoned US20040055245A1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060117687A1 (en) * 2004-11-23 2006-06-08 Benjamin Obdyke Incorporated Masonry cavity wall and method of assembly
US20070245654A1 (en) * 2006-04-10 2007-10-25 Seamless Abutment Solutions Abutment member
US20080256881A1 (en) * 2007-04-20 2008-10-23 Sonoco Development, Inc. Door frame edge protector
US20090277100A1 (en) * 2006-06-28 2009-11-12 Under-Cover Construction element for use in interior decoration

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1030044A (en) * 1910-04-20 1912-06-18 William A Wittbecker Inside-angle bead.
US1419232A (en) * 1921-10-31 1922-06-13 Milwaukee Corrugating Company Plaster terminal
US1608475A (en) * 1925-12-02 1926-11-23 Northwestern Expanded Metal Co Sheet-metal corner bead
US2353073A (en) * 1943-07-01 1944-07-04 Patent Scaffolding Co Inc Metallic sill member for frames in building constructions
US2465756A (en) * 1943-11-11 1949-03-29 Schepis Frank Clip for metal lath and beading
US3398494A (en) * 1967-01-03 1968-08-27 Elton H. Larson Wall joint
US3412512A (en) * 1967-07-06 1968-11-26 Harry W. Hollister Partition construction employing double corner bead
US3782057A (en) * 1971-07-12 1974-01-01 R Gross Decking structure with guard rail support
US3825229A (en) * 1972-12-07 1974-07-23 Specialties Const Combination handrail and wall protector
US4219978A (en) * 1978-08-03 1980-09-02 Brown Billy R Pre-cast reinforced concrete building panel wall structure
US5423154A (en) * 1993-01-25 1995-06-13 Alabama Metal Industries Corporation Banding Bead
US5625986A (en) * 1994-09-13 1997-05-06 Mansfield; Mike Skeletal reinforcing manufacture
US5661929A (en) * 1996-04-29 1997-09-02 Ross; Steve Parapet molding flashing installation system
US5685116A (en) * 1994-04-05 1997-11-11 John Cravens Plastering, Inc. Preshaped form
US5704176A (en) * 1994-08-19 1998-01-06 Crown Partnership Snap-on coping holddown
US5787664A (en) * 1997-02-24 1998-08-04 Hollander; Mark D. Handrail assembly
US6662513B2 (en) * 1994-04-05 2003-12-16 Daniel W. Rodlin Preshaped form

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1030044A (en) * 1910-04-20 1912-06-18 William A Wittbecker Inside-angle bead.
US1419232A (en) * 1921-10-31 1922-06-13 Milwaukee Corrugating Company Plaster terminal
US1608475A (en) * 1925-12-02 1926-11-23 Northwestern Expanded Metal Co Sheet-metal corner bead
US2353073A (en) * 1943-07-01 1944-07-04 Patent Scaffolding Co Inc Metallic sill member for frames in building constructions
US2465756A (en) * 1943-11-11 1949-03-29 Schepis Frank Clip for metal lath and beading
US3398494A (en) * 1967-01-03 1968-08-27 Elton H. Larson Wall joint
US3412512A (en) * 1967-07-06 1968-11-26 Harry W. Hollister Partition construction employing double corner bead
US3782057A (en) * 1971-07-12 1974-01-01 R Gross Decking structure with guard rail support
US3825229A (en) * 1972-12-07 1974-07-23 Specialties Const Combination handrail and wall protector
US4219978A (en) * 1978-08-03 1980-09-02 Brown Billy R Pre-cast reinforced concrete building panel wall structure
US5423154A (en) * 1993-01-25 1995-06-13 Alabama Metal Industries Corporation Banding Bead
US5685116A (en) * 1994-04-05 1997-11-11 John Cravens Plastering, Inc. Preshaped form
US6662513B2 (en) * 1994-04-05 2003-12-16 Daniel W. Rodlin Preshaped form
US5704176A (en) * 1994-08-19 1998-01-06 Crown Partnership Snap-on coping holddown
US5625986A (en) * 1994-09-13 1997-05-06 Mansfield; Mike Skeletal reinforcing manufacture
US5661929A (en) * 1996-04-29 1997-09-02 Ross; Steve Parapet molding flashing installation system
US5787664A (en) * 1997-02-24 1998-08-04 Hollander; Mark D. Handrail assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060117687A1 (en) * 2004-11-23 2006-06-08 Benjamin Obdyke Incorporated Masonry cavity wall and method of assembly
US7526900B2 (en) * 2004-11-23 2009-05-05 Benjamin Obdyke Incorporated Masonry cavity wall having a compressible, expandable debris blocker
US20090126290A1 (en) * 2004-11-23 2009-05-21 Benjamin Obdyke Incorporated Masonry Cavity Wall having a Compressible, Expandable Debris Blocker and Method of Assembly
US7810292B2 (en) 2004-11-23 2010-10-12 Benjamin Obdyke Incorporated Masonry cavity wall having a compressible, expandable debris blocker and method of assembly
US20070245654A1 (en) * 2006-04-10 2007-10-25 Seamless Abutment Solutions Abutment member
US8117791B2 (en) * 2006-04-10 2012-02-21 Tony Baccarini Abutment member
US8863457B2 (en) * 2006-06-28 2014-10-21 Under-Cover Construction element for use in interior decoration
US20090277100A1 (en) * 2006-06-28 2009-11-12 Under-Cover Construction element for use in interior decoration
US20080256881A1 (en) * 2007-04-20 2008-10-23 Sonoco Development, Inc. Door frame edge protector

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