Static structures (e.g. – buildings) – Exterior-type flashing
Reexamination Certificate
2000-04-21
2001-10-09
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Exterior-type flashing
C052S101000, C052S209000, C052S254000, C052S443000, C052S302300
Reexamination Certificate
active
06298609
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to construction accessories. In particular, the present invention relates to a panel support construction accessory utilized in a wall structure, wherein a panel support construction accessory partially encloses a construction panel and removes moisture from about the construction panel.
BACKGROUND OF THE INVENTION
Panel support construction accessories come in a variety of different configurations, shapes and sizes, and serve a variety of different functions in exterior construction applications. Panel support construction accessories generally include a plurality of flanges extending nonparallel relative to one another to form a channel sized to receive a construction panel. Panel support construction accessories have various uses, such as supporting panels, supporting coatings of construction fluid materials adjacent the panels, producing durable straight lines, smooth curves and arches, providing soffit ventilation, controlling expansion and contraction and protecting corners and edges. Panel support construction assemblies further protect and preserve edges of construction panels, such as wallboard, sheathing, and insulation boards from impact and condensation. Panel support construction accessories are commonly known by various names, including but not limited to, corner beads, casing beads, starter strip/casing beads, reinforced, drip casing beads, controlled joints and soffit vents. Panel support construction accessories are used in exterior finishing systems known as direct exterior finishing systems (DEFS) and exterior insulated finishing systems (EIFS).
Panel support construction accessories are typically supported adjacent a support structure lined with a moisture barrier. After a construction panel is inserted into the channel of the panel support construction accessory, the front of the accessory as well as the front of the construction panel are typically coated with a polymer based or polymer modified exterior construction fluid material, such as stucco, cement matrix material or gypsum matrix materials, including acrylic modifiers, or are lined with a preformed sheet of weatherproof material. As a result, the panel support construction accessory, moisture barrier and the outer coating, or sheet of weatherproof material, form an enclosure partially surrounding and encasing the construction panel. In addition to encasing the construction panel, the enclosure traps moisture adjacent to the construction panel. Unless perfectly sealed, additional moisture may enter the system through various cracks or openings. Moisture trapped within the enclosure and condenses to damage the construction panel. In addition, trapped moisture may change state from a liquid to a solid (ice) and expand in volume. This change in volume further damages the enclosure by causing the coating to crack or by causing deformation of the panel support construction accessory. As a result, it is critical that moisture within the enclosure be allowed to escape. At the same time, however, it is also critical that any methods used to vent moisture from the enclosure not enable wind-blown moisture to re-enter the enclosure or allow insects, such as flying termites, to enter the enclosure.
SUMMARY OF THE INVENTION
The present invention is directed to a construction system. The construction system includes at least one structural support member, a panel support construction accessory, a construction panel and a coating. The construction accessory includes a front flange having a first side and a second opposite side, a bottom flange extending from the front flange on the first side of the front flange, a back flange extending from the bottom flange opposite the front flange, and a forward flange extending from a junction of the front flange and the bottom flange on the second side of the front flange. The front flange, the bottom flange and the back flange form a channel in which the construction panel is positioned. The back flange is supported by the at least one structural support member. The coating extends from the forward flange adjacent to the second side of the front flange and adjacent to the construction panel.
The present invention is also directed to a panel support construction accessory. The accessory includes a front flange having a first side and a second opposite side, a bottom flange extending from the front flange on the first side of the front flange, a back flange extending from the bottom flange opposite the front flange, a plurality of perforations extending through the bottom flange, a lower flange facing the bottom flange and spaced from the bottom flange to form a cavity below the plurality of perforations, and a forward flange extending from above the cavity to below the cavity in front of the cavity to at least partially conceal the cavity. The front flange, the bottom flange and the back flange form a channel sized to receive a construction panel.
The present invention is also directed to a panel support construction accessory including a front flange having a first side and a second opposite side, a bottom flange extending from the front flange on the first side of the front flange, a back flange extending from the bottom flange opposite the front flange, a forward flange extending from a junction of the front flange and the bottom flange on the second side of the front flange and a rear flange extending from the front flange towards the back flange above the bottom flange. The front flange, the bottom flange and the back flange form a channel sized to receive a construction panel.
The present invention is also directed to a panel support construction accessory which includes a front flange having a first side and a second opposite side, a bottom flange extending from the front flange on the first side of the front flange, a back flange extending from the bottom flange opposite the front flange, a forward flange extending from a junction of the front flange and the bottom flange on the second side of the front flange, and a rear flange extending from the front flange towards the back flange above the bottom flange. The front flange, the bottom flange and the back flange form a channel sized to receive a construction panel.
The present invention is also directed to a panel support construction accessory including a bottom flange having a first side, a second side and a plurality of perforations extending therethrough from the first side to the second side; a lower flange extending below the bottom flange; at least one mounting flange coupled to at least one of the bottom flange and the lower flange and configured to mount the panel support construction accessory to a structure and at least one channel-forming flange extending above the bottom flange opposite the at least one mounting flange. At least a portion of the lower flange is spaced from the bottom flange to form a cavity therebetween. The accessory additionally includes at least one concealment flange extending from above the cavity to below the cavity to conceal the cavity.
The present invention also provides a panel support construction accessory which includes a bottom flange having a first side, a second side and a plurality of perforations extending therethrough from the first side to the second side; a back flange extending from the bottom flange on the first side of the bottom flange; a front flange extending from the bottom flange on the first side of the bottom flange; and a rear flange extending from the front flange towards the back flange. The front flange extends in a single plane. The rear flange is spaced from the bottom flange on the first side of the bottom flange.
REFERENCES:
patent: 1310331 (1919-07-01), Ficklen
patent: 2073185 (1937-03-01), Shafer
patent: 2483888 (1949-10-01), Danielson
patent: 2645824 (1953-07-01), Titsworth
patent: 2703002 (1955-03-01), Suskind
patent: 2822761 (1958-02-01), Herring
patent: 2905072 (1959-09-01), Oswald
patent: 3019866 (1962-02-01), Grabowski
patent: 3239977 (1966-03-01), Shore
patent: 3314201 (1967-04-01),
Bifano Gabriel F.
Reyes Erenio
Foley & Lardner
Friedman Carl D.
Glessner Brian E.
Vinyl Corp.
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