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Publication numberUS3167823 A
Publication typeGrant
Publication dateFeb 2, 1965
Filing dateNov 20, 1961
Priority dateNov 20, 1961
Publication numberUS 3167823 A, US 3167823A, US-A-3167823, US3167823 A, US3167823A
InventorsAlbert J Palfey
Original AssigneeDow Chemical Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Panel mounting structure
US 3167823 A
Abstract  available in
Images(3)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Feb. 2, 1965 A. J. PALFEY PANEL. MOUNTING STRUCTURE 3 Sheets-Sheet 1 Filed Nov. 20, 1961 Ulerz If P BY 511%.. J

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PANEL MOUNTING STRUCTURE Filed Nov. 20, 1961 3 Sheets-Sheet 2 VEN TOR.

Qleri rlfi a {fey BY J Feb. 2, 1965 A. J. PALFEY PANEL MOUNTING STRUCTURE 3 Sheets-Sheet 6 Filed Nov. 20, 1961 COMPRESSIVE STRESS-STRAIN DIAGRAM warn HYSTERESLS AT VARIOUS Z COMPRESSIONS COMPRESSIV STRESS, ps1

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United States Patent 3,167,823 PANEL MOUNTING STRUCTURE Albert J. Palfey, Midland, Mich., assignor to The Dow Chemical Company, Midland, Mich., a corporation of Delaware Filed Nov. 20, 1961, Ser. No. 153,411 6 Claims. (Cl. 20-565) This invention relates to an improvement in panel mounting structures of the window-like type.

The conventional method of installing glazing is to retain the glass in a window sash groove. The four sash sides frame the glass sash; corners are fastened together to complete the assembly. In the alternative, sash grooves may be formed with retaining strips, or stops. The window sash, which may be wood, metal, plastic, or other rigid or semi-rigid material, requires a resilient caulking, or other resilient retainer to separate the sash from the glass to prevent glass breakage due to. sash dimensional change, or vibration.

When glazing is installed in a sash, good practice requires allowance of a space, say Ms, between the peripheral dimensions of the glass, and the sash. Such an arrangement allows the panel, on glazing, to move freely when subject to thermal changes, or structural movement which contacts the sash. This spacing may be filled with A more specific object is to provide a panel mounting structure in which a window assembly is protected against vibration, expansion, shock and frame shifting.

A'further object is to provide a panel mounting having a sealant which allows a certain degree of movement of the window assembly within the supporting sash, or frame, without distortion of the gasket.

Still another object is to provide a panel assembly which will Withstand the elements, and will not deteriorate because of ozone ladened air, ultra-violet light, solvents used in glazing cleaning compounds, and other causes.

A further object is to provide a window assembly including a frame, or sash support, made of wood, metal or other materials, having an improved final appearance.

These and further objects and features of the invention will become more apparent from the following description and accompanying drawings wherein:

FIG. 1 is a fragmentary perspective View of a panel assembly illustrative of an embodiment of the invention;

FIG. 2 is a section view of a modified panel assembly incorporating the principles of the invention;

FIG. 3 is a section view of a window assembly embodying'the principles of the invention;

a flexible type caulking compound, or an extruded rub- I ber, vinyl, etc. channel gasket.

The present commercially available caulking compounds generally are not entirely satisfactory because the oils, or other components thereof, are often absorbed in wood sash and wood retainers. This presents an undesirable appearance and often causes the wood finishes to fail. Other caulking compounds deficient of oils, or other fluids, may become rigid within a few months after application, thus losing the desired flexibility. Many caulking compounds are extruded from the sash because of glazing expansion. This is not only unsightly, but often the caulking does not return to original position after the glazing has contracted, resulting in cracks and subsequent leakage. Flexible strips used in place of caulking compounds do not generally provide for a permanent tight seal, and foreign material eventually finds its way into the seal and leaks occur. Practically all such seals made of organic materials eventually fail when exposed to the elements, deterioration occurring because of ozone laden air, ultraviolet light rays, solvents used in glazing cleaning compounds, etc.

The panel mounting structures of the present invention represent a distinct improvement over those of the known prior art, and avoid many shortcomings thereof. Briefly, the inventive concept embraces the use of a polyethylene foam gasket which is placed about the periphery of a window assembly, and which cushions the latter when supported in the window sash, or frame. The compressive properties of the gasket are such as to provide full support to the window assembly along the entire load bearing edge, and eliminates the need for lead quarter point supports. In addition, the gasket may be re-used if necessary, or desired. A sealant is used to protect the gasket from the atmosphere, moisture, dirt, dust or other undesired foreign matter. The sealant has excellent adhesion properties relative to wood, glass, metal and most other materials. However, when applied to polyethylene foam there is no bonding effect, thus allowing a certain degree of movement of the window assembly within the supporting sash, or framewithout distortion of the gasket. The main object of the invention is to provide an improvement in panel mounting structures of the windowlike type.

FIG. 4 is a section View of another window assembly embodying the principles of the invention;

FIG. 5 is a fragmentary side view of the window assembly of FIG. 4;

FIG. 6 is an enlarged exploded perspective-like view illustrating details of construction as used in the FIG. 4 assembly;

FIG. 7 is a section view of a further modification embodying the principles of the invention;

FIG. 8 is a graph showing typical stress-strain curves, and showing also recovery from initial compression, of a gasket material used in window assemblies embodying the principles of the invention; and

FIG. 9 to FIGv 14, inclusive, illustrate cross-section views of various gasket forms used in window assemblies embodying the principles of the invention.

Referring now to the drawings and more particularly to FIG. 1, a panel, or window-like assembly 20 is illustrated which includes a pane of glass 22 supported in parallel relation to a similar size sheet of wood, or hard board 24, on which written matter 26, or other information may be carried. If desired, a pane of glass, or other material, may be substituted for the board 24. The elements 22 and 24 are maintained in spaced relation by a metal tubing 28 having openings 29, which tubing commonly is made of aluminum, and which has a silica gel filling 30. The latter absorbs any water vapor trapped between the elements 22 and 24. A space is provided between the outer edge of the tubing 28 and the peripheral edge of the elements 22 and 24-, which space is filled with a sealant 32. While various types of sealant may be used, the inventive concept embraces the preferred use of a sealant identified as No. 780, made by the Dow Corning Corporation. The specified sealant is an uncured silicon rubber with an acid hardener, such as acetic acid, the combination of which, when brought into contact with moisture in the surrounding atmosphere, results in a curing of the rubber. The advantages of the specified sealant are: it provides a single component system, and is available in caulking cartridges ready for use; it has superior adhesive properties relative to glass, wood and metal; and, it has excellent resistance to climatic conditions, i.e., temperature and ultra-violet light. The peel strength of the No. 780 sealant is approximately 20 lbs. per sq. in. upon glass, metals or wood. The panel assembly thus formed, is surrounded by a compressible U-shaped gasket 34, which is adapted to support the panel assembly in a frame mately means consisting of a sill, or sash 36 and a pair of preferred use of an extruded polyethylene foam produced-1 by the Dow Chemical Company, and identified by their;

registered trademark Ethafoam. Thephysical properties of the specified gasket'rnaterial are fully set forth in the Company Bulletin 171-125A. The graph of FIG. 8 illustrates a typical stress-strain curve (compression ratev of 20inches per minute) of Ethafoam; the area en closed by thehysteresis loop gives the percent work energy loss at a particular degree of compression. The advantages of the specified gasket material are: it is relatively low in cost; has a closed cell structure, hence does not absorb, nor is wetted by water; easy to handle; non-toxic and odorless; low density (1.8 to 2.2 lbs. per cu. ft.); low thermal conductivity (K factor=0.35 B.t.u.s./hr. ft. in P); good ozone resistanceygoodsolvent resistance; and can be extruded in continuous strips, and be wound on a reel; I

Two similar spaces, defined by an outer edge of the gasket 34, an outer side of the pane 22. and the board 24, and an inner side of a strip 38, are filledwith the seal-ant 32. A further char-actertistioof the sealant 32, i.e., No;

applied in the peripheral spaces member 50. a i The embodiments shown in FIGS. 3.:to 7, utilize'the same type of compressible foam and sealant arrangements as described in connection with the embodiments'illustrated in FIGS. '1' and 2. vF-or the purpose of brevity, these will be briefly described using the'same numerals for like 1 parts as used in the FIGS. 1 land 2 embodiments.

ThBarr-angement shown in FIG. 3 illustrates the manner in which a do-uble pane wind ow assembly 52*.is arranged on an outside sill member 54, with a removable inside sill member; 56-oompressing the gasket 34, and holdingthe assembly 52 position upon thesill member 54; I

In 1 16.4 a double pane insulating window assembly .58 is supported in a wooden "frame or sash-assembly 60,hav,-

ing a groove 62 for receipt of the assembly 58.; V The vele-- merits forming the sash assembly oflmay be mitered" at each endQas best seen in FIG. 5. A maskingtapeMrm-ay be employed at each cornerto hold the-gaskets in positionupon the assembly 58. prior to installation inthe frame assembly 60, as illustrated in FIG. 6.

.. sembly 66 whereinthe side extensions, or legs of the 780, whichv makes it especially suitable for the presentv purposes, is that it does not bond to polyethylene,-thus degreeor' movement without distortion. p

In fixing the strips. 38 in position, the gasket 34 is compressed between thestrips 38 to athickness of approxi Glass in window assembliesis convention: ally supported at base quarter.- points to assure support, espediallyin installations of large size. The A thick lead blocks customarily usedto support insulating glass, may be eliminatediwhen using the teachings of the invention An irregular .base support may cause the glass to bear at a single point, which may result in glass failure when subject to forces such as building movement, moisture expansion of wood, etc; The gasket 34 will provide for continuous glass support along the entire length, thus eliminating the danger of glass failure as associated with conventi-onal installation methods. 7 The gasket 34 can readily carry loads generallyencountered in large window installations. For example, a

double glazed window 48" wide by '72" high by 1 thick 7 weighs about 157 pounds. Such a window will produce a unit pressure of 3.28' lbs. per sq. in. on the supporting that such a load will cause less than 5% compression of' the gasket. 7 n V The modified forms shown in FIGS. 2 to 7 inclusive,

. the roof portion byf-astening means, or Welding, as the case may be. The panels 44 are maintained in spaced rela tion within the peripheral opening define'd by the skirt 48 and member 56, by means of the metal tubing 28 containing a silica gel filling StiQand having openings 29. The gasket 34', of extruded polyethylene foam, surrounds the peripheral edge ofthe panelassembly and maintains the panels 44 in spaced relation to the skirt 43, the member I .50, and the inner surface of the roof portion 46. Sealant .32, preferably thatpreviously identified as No.- 780, is

base.- Referring to the curve in FIGJS, it will be seen V gasket Sagare unevenly compressed by application of retaining strips osha'ving tapered inner wall portions The strips'68 are: secured to a sill, 'orframe member 72;

by fastening means such as SCI6WS74-g V p r The material from which -the gaskets :are,made,'-preferably FEthafo'am, may be compressed 50% with-about 15 lbs per sq. in; load. This force may beg-reater than desired to compress a window ga'sket to: such a degree in position against the sides of the gasket.

In FIGS. 12 and 1 3, the dashed lines indicate the side legs of the gasket. 1 p

The ioregoing description hasbeen given in det-iilwithout thought of limitation since the. inventive principles involved are capable of assuming totherforms without de-' the? invention or the scope of the parting from the spirit of foliowingclaims.

What is claimed is:

1. In a panel mounting. structure 'havingafsheet-like element supported in a groove meansofla frame,ra'resilient. gasket.extendingaround the periphery of the sheet like element tor support Within the" groove means of the m'ent'with a wall of the gro'ove means, thegasket, and'the" sheet-like element, said sealant being noneadhering to said gasketbut being; adhesively bonded to thsheet-like element and the groove means of the framel'i 2. In a panel mounting struoture'having a window assemblysuppo rted in ;a groove means of frame which extends, abontthe window assembly, a U sha ped polymeric foam gasket extending around the periphery of the window assembly -for suppontwithinthe groove means of the frame,qtanda sealant extending about the window'assemw bly and "inwardly spaoed. fromiits periphery in engage meiitwith a wan of the groove means," the gasket, and the. window assembly, said sealant being non-adhering to said'gasket but being'adhesively bonded .to the Window assembly .andthe groove means of theframe', 7

3. In a. panel mounting structure havinga window assemblysupported in a groovemeans of'a frame which-exapplied in the peripheralspace defined between the inner,

surfaces of panels '44,-the gasket 34, and an exterior sur face oif'the' tubing 28, 1 The same type of; sealant 32 is tends about the window assembly; a Ushapedpolyethylen-e foam gasket positioned about the periphery; of the window assembly for support within the groove means of the frame, saidwindowlassembly being arranged insaid gnoove means to iorm {aspacebetween theedges of-the gasket legs and thesides of the window assembly vas well 'defined by the exterior surfaces-of the panels 44, the gasket 34, ski-rt 48, and

relatively small'lo-ad to place the retainerstrip' V V the cross section shape after installation, whilethe form shown in" FIG14 is fior use where there is to be no compression on' as the walls of the groove, and a sealant Within said space which sealant is non-adhering to the gasket but which forms a bond with the Window assembly and a Wall of the groove.

4. In a panel mounting structure including a pair of panel elements positioned in parallel spaced relation and a sash means formed to provide a peripheral groove for receipt of said panel elements, a spacer means positioned between the panel elements, a U shaped polyethylene foam gasket arranged in said groove for support of the panel elements, and a sealant arranged between the spacer means and the panel elements, said sealant also being am'anged between the edges of said gasket and the sides of said groove, said sealant being non-adhering to said gasket.

5. In a panel mounting structure including a pair of panel elements positioned in panallel spaced relation and a sash mean-s formed to provide a peripheral groove for receipt of said panel elements, a metal tubing positioned between the panel elements and about the periphery thereof, said tubing being open to the volume between the panel elements, a U-shaped polyethylene foam gasket arranged b in said groove for support of the panel elements, and a sealant between the tubing and the panel elements, said sealant also being arranged between the edges of said gasket and the sides of said groove, said sealant being non-adhering to said gasket.

6. A tubing according to claim 5, wherein said tubing is filled with silica gel.

References ited in the file of this patent UNITED STATES PATENTS 1,272,309 Loebel Aug. 16, 1932 2,597,097 Haven May 20, 1952 2,838,809 Zeolla et al lune 17, 1958 2,934,801 Blaszleowski May 3, 1966 2,974,377 Kunkle Mar. 4, 1951 2,979,788 Richardson Apr. 18, 1961 3,061,895 Kleinhans Nov. 6, 1962 FOREIGN PATENTS 1,142,650 France Apr. 1, 1957

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1872309 *Jan 16, 1931Aug 16, 1932Smith Corp A OWindow construction
US2597097 *Mar 15, 1947May 20, 1952Libbey Owens Ford Glass CoMultiple glazing unit
US2838809 *Jan 29, 1954Jun 17, 1958Pittsburgh Plate Glass CoMultiple glazed units
US2934801 *Jun 16, 1958May 3, 1960Henry BlaszkowskiInsulating window
US2974377 *Mar 10, 1959Mar 14, 1961Pittsburgh Plate Glass CoPolybutene sealing compound for glazing purposes
US2979788 *Jun 10, 1959Apr 18, 1961Dap IncWindow blocks
US3061895 *Aug 5, 1960Nov 6, 1962Pawling Rubber CorpResilient caulking seal
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3323267 *Jun 1, 1965Jun 6, 1967Dow Chemical CoFoam resin insulated joint
US3393896 *Jan 28, 1966Jul 23, 1968Harold M. PolandConcrete fence
US3456408 *Sep 14, 1967Jul 22, 1969Uniseal IncSealing assembly for panels
US3783567 *Feb 5, 1971Jan 8, 1974Timber Res And Dev AssGlazing strip
US4000593 *Oct 10, 1972Jan 4, 1977Ppg Industries, Inc.Insulating spandrel glazing unit
US4158278 *Apr 29, 1977Jun 19, 1979Raffaele CardinaleInsulating glass pane assembly
US4601144 *Oct 9, 1984Jul 22, 1986Jerome TintiBuilding insulating and trimming system
US5075059 *Jul 30, 1990Dec 24, 1991Pease Industries, Inc.Compression molding fiber reinfored polyester; rubbing with oil and mineral spirits
US5175970 *Jun 22, 1990Jan 5, 1993Pease Industries, Inc.Molded panel door with integral raised trim
US6123169 *Feb 26, 1999Sep 26, 2000Hoover Treated Wood ProductsPre-engineered vertical wall structure constructed entirely or prefabricated wood
US6971948Feb 8, 2002Dec 6, 2005Cardinal Cg CompanyMethod and apparatus for removing coatings applied to surfaces of a substrate
US6988938Oct 7, 2004Jan 24, 2006Cardinal Cg CompanyMethod and apparatus for removing coatings applied to surfaces of a substrate
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US7541083May 23, 2008Jun 2, 2009The Boeing CompanyJoining structures
US7625623Apr 17, 2009Dec 1, 2009The Boeing CompanyJoints formed by joining structures
US8695309 *Oct 18, 2012Apr 15, 2014Iso-Chemie GmbhMethod for sealing of replacement windows
EP0397981A1 *Mar 14, 1990Nov 22, 1990Schott GlaswerkeInsulated glazing unit with edge strips
Classifications
U.S. Classification52/172, 52/204.593, D25/60, 52/309.4, 264/263, 264/261, 52/309.3
International ClassificationE06B3/66, E06B3/58, E06B3/62
Cooperative ClassificationE06B2003/6244, E06B3/6621, E06B2003/6258, E06B3/62, E06B2003/6282
European ClassificationE06B3/66J, E06B3/62