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US4059936A Expired / Lapsed US ⏱️ 0.0 years remaining

Panel construction for roofs and the like

Assignee: INSULDECK CORP
•
Filing: 1976-09-27
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Granted: 1977-11-29
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Expires: 1996-09-27
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Abstract

Abstract A panel construction for roofs and the like is disclosed for use as an insulated structural roof deck and insulated structural wall which includes panels capable of being readily handled, the panels being attached to and supported by spaced long span bar joints or the like, or other structural steel framing, the panels each having a lower board preferably of gypsum to serve as a fire shield and to which at least one small structural steel stiffener or joist member preferably of I-shape and of sheet metal is secured. I-shaped joist members are also provided along one end margin and along one edge margin of each panel. The space between the internal joists and to the I-shaped margin members is filled with polyurethane foam formed along one side edge and one end edge as tongues for engagement in the I-shaped margin members. The lower board is preferably vented to permit the escape of gas generated by exposure of the foam to very high temperatures. The panel is held in place in several different ways, depending upon the desired resistance to fire. The panel has great strength and resistance to distributed load, low deflection, is light in weight, is effective for heat and sound insulation, can be readily sealed at its edges in engagement with edges of adjoining panels, and is suitable for use as roof or floor panels or as vertical wall members, and for the reception of various wall members, coatings or treatments.

Inventors

  • 👤 Edward E. Lukens

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 23:33
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/20; E04B7/22; E04D; E04D3/00; E04D3/35; E04D3/351; E04D3/352

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 209 words
A panel of generally rectangular shape for use in building construction and for attachment to a support comprising a first lower fire resistant gypsum board lamina, a second lamina superposed thereon in adherent relation thereto, said second lamina being of stabilized plastic foam and having embedded therein between the side edges a longitudinally extending steel I-beam with its lower flanges engaged with a face of the first lamina and held in engagement therewith by said second lamina, the upper flanges of said longitudinally extending I-beam being interiorly disposed below the face of said second lamina opposite to that engaged with the face of the first lamina, the second lamina being in covering relation to said upper flanges, said second lamina having a tongue along one longitudinal edge thereof, said second lamina having in secured engagement along an opposite edge face a steel I-beam having its lower flanges in the same plane as the lower flanges of the first mentioned I-beam and its upper flanges in the same plane as the upper flanges of the first mentioned I-beam and having a longitudinal edge providing a groove for the reception of an edge tongue of an adjoining panel, and members for securing said second mentioned I-beam in place on the support.
Claim 2
Dependent Claim 209 words
A panel of generally rectangular shape for use in building construction and for attachment to a support comprising a first lower fire resistant gypsum board lamina, a second lamina superposed thereon in adherent relation thereto, said second lamina being of stabilized plastic foam and having embedded therein between the side edges a longitudinally extending steel I-beam with its lower flanges engaged with a face of the first lamina and held in engagement therewith by said second lamina, the upper flanges of said longitudinally extending I-beam being interiorly disposed below the face of said second lamina opposite to that engaged with the face of the first lamina, the second lamina being in covering relation to said upper flanges, said second lamina having a tongue along one longitudinal edge thereof, said second lamina having in secured engagement along an opposite edge face a steel I-beam having its lower flanges in the same plane as the lower flanges of the first mentioned I-beam and its upper flanges in the same plane as the upper flanges of the first mentioned I-beam and having a longitudinal edge providing a groove for the reception of an edge tongue of an adjoining panel, and members for securing said second mentioned I-beam in place on the support.
Claim 3
Dependent Claim 15 words
A panel as defined in claim 1 in which said last mentioned members are clips.
Claim 4
Dependent Claim 22 words
A panel as defined in claim 2 in which said clips are in engagement with a flange of said second mentioned I-beam.
Claim 5
Dependent Claim 28 words
A panel as defined in claim 1 in which said last mentioned members have a flange portion in engagement with a flange portion of said second mentioned I-beam.
Claim 6
Dependent Claim 20 words
A panel as defined in claim 1 in which said last mentioned members are integral with said second mentioned I-beam.
Claim 7
Dependent Claim 23 words
A panel as defined in claim 1 in which end edges of said panel have complemental portions for engagement with an adjoining panel.
Claim 8
Dependent Claim 23 words
A panel as defined in claim 1 in which one end edge of said panel has an I-beam therealong with an exterior channel.
Claim 9
Dependent Claim 27 words
A panel as defined in claim 7 in which the other end edge of said panel has a tongue complemental to the channel of said one edge.
Claim 10
Dependent Claim 28 words
A panel as defined in claim 1 in which one end edge of said panel has a tongue for engagement with a complemental edge of an adjoining panel.
Claim 11
Dependent Claim 22 words
A panel as defined in claim 1 in which said last mentioned members include a horizontal flange portion for panel hold down.
Claim 12
Dependent Claim 15 words
A panel as defined in claim 1 in which said I-beams are of sheet metal.
Claim 13
Dependent Claim 30 words
A panel as defined in claim 1 in which an impact lamina is superposed on said second lamina, and said second lamina is in adherent engagement with said impact lamina.
Claim 14
Dependent Claim 18 words
A panel as defined in claim 1 in which said lower lamina has a plurality of vent openings.
Claim 15
Dependent Claim 17 words
A panel as defined in claim 1 in which said edge tongue has a liner strip therealong.

References Cited (Backward Citations)

US2014841A Cited
US2021922A Cited
US3203146A Cited
US3313073A Cited
US3357146A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-11-28 1981-05-30 1981-11-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-11-28 1985-05-30 1985-11-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-11-28 1989-05-30 1989-11-29 $7700.00 Window Closed / Lapsed

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