CA2090984C - Improved heat bond seaming tape - Google Patents

Improved heat bond seaming tape Download PDF

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Publication number
CA2090984C
CA2090984C CA002090984A CA2090984A CA2090984C CA 2090984 C CA2090984 C CA 2090984C CA 002090984 A CA002090984 A CA 002090984A CA 2090984 A CA2090984 A CA 2090984A CA 2090984 C CA2090984 C CA 2090984C
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CA
Canada
Prior art keywords
seam
brace members
strip
mesh material
inches
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.)
Expired - Fee Related
Application number
CA002090984A
Other languages
French (fr)
Other versions
CA2090984A1 (en
Inventor
James A. Matthews
Nicholas H. Shaheen, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NICHOLAS H SHAHEEN JR
Original Assignee
NICHOLAS H SHAHEEN JR
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.)
Filing date
Publication date
Priority to US07/742,400 priority Critical patent/US5198300A/en
Application filed by NICHOLAS H SHAHEEN JR filed Critical NICHOLAS H SHAHEEN JR
Priority to CA002090984A priority patent/CA2090984C/en
Publication of CA2090984A1 publication Critical patent/CA2090984A1/en
Application granted granted Critical
Publication of CA2090984C publication Critical patent/CA2090984C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47GHOUSEHOLD OR TABLE EQUIPMENT
    • A47G27/00Floor fabrics; Fastenings therefor
    • A47G27/04Carpet fasteners; Carpet-expanding devices ; Laying carpeting; Tools therefor
    • A47G27/0437Laying carpeting, e.g. wall-to-wall carpeting
    • A47G27/0443Laying carpeting, e.g. wall-to-wall carpeting using hot-melt adhesives; Irons therefor
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/30Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/35Heat-activated
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/19Sheets or webs edge spliced or joined
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/19Sheets or webs edge spliced or joined
    • Y10T428/192Sheets or webs coplanar
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/19Sheets or webs edge spliced or joined
    • Y10T428/192Sheets or webs coplanar
    • Y10T428/197Sheets or webs coplanar with noncoplanar reinforcement
    • Y10T428/198Pile or nap surface sheets connected
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848Three or more layers

Abstract

A heat bond seaming tape has a base formed of a strip of paper or paper-like material. A strip of an open mesh material is adhered to the base strip and is disposed in substantially symmetriacal, overlying relation thereto.
A plurality of spaced, transversely disposed, rigid bracing members are sandwiched between the mesh strip and base strip or in the alternative are secured on top of the mesh strip, A thermoplastic adhesive overlies they open mesh strip and the bracing members for adhering the strip and bracing members to the backs of adjacent carpet edges, so that a seam defined by said adjacent carpet edges, will lie flat in response to the provision of said seam tape, due to the rigid bracing members extending generally transversely across the carpet seam.

Description

IMPROVED HEAT BOND SEAMING TAPE
BACKGROUND OF THE INVENTION
Technical Field This invention relates generally to seam tape, and more specifically relates to a seam tape having rigid brace members disposed transversely to the longitudinal axis of the tape to thereby reinforce the tape, and hence carpet seams, against buckling.
Background Information A longstanding problem in the carpet laying service is the tendency of adjoining carpets to rise along the length of their common seam. This unsightly buckling is caused by the stresses appearing at the seam, and is a source of frequent consumer complaints.
The most widely used means for attempting to retain the abutting carpet edges in a flat disposition is the well known heat bond seam tape. The tape is a composite structure of three primary elements.
Essentially, an open mesh reinforcing means, or webbing, is held in sandwiched relation between a strip of paper and a strip of thermoplastic adhesive. The purpose of the tape is to secure the seam, i.e., to prevent the seam from separating responsive to oppositely directed stretching forces imparted to the abutting carpets. It is the weakness of the open mesh, or webbing, which allows the carpets to buckle, or lift, at the seam.
Another drawback of prior art hot melt seaming tape is the tendency for the webbing to separate from the paper upon which it is adhesively mounted when the heat seaming iron is used to melt the layer of thermoplastic adhesive. This phenomenon, known in the trade as web drag, severely weakens the tape and contributes to the lifting of the adjoining carpets at the seam.
A further seaming tape of the prior art is known as pin tape, and includes a plurality of metallic bracing members disposed in sandwiched relation to the paper base and the webbing. The braces have upstanding teeth with which to grab the carpet backing.
U. S. Patent No. 4, 935, 280 issued on June 19, 1990 discloses a prior art seaming tape having reinforcing filaments of high-strength yarn such as fiberglass, synthetic fibers or metal wire woven into the mesh backing of the tape. U.S. Patent No. 4,565,728 issued on January 21, 1986 also discloses another type of seaming tape having metal wires embedded therein for heating in order to melt the adjacent adhesive, as well as reinforcing cords of fiberglass or the like. U.S. Patent No. 4,416,713 issued on November 22, 1983 shows another prior art carpet seaming tape which includes reinforcing filaments formed of rayon or glass fibers which extend transversely across the width of the tapes.
Although prior art carpet seaming tapes such as those discussed above all contain reinforcements, they are in fiber form. Although such fibers may provide reinforcing to the mesh, it does not provide the required reinforcement to prevent buckling or uplifting of the carpet edges at a seam.
There is a need in the carpet laying service for a seaming tape that provides lift-free seams and that is ,2~~~,~~~r~.
a:ree al wen crag protayem~, i~u~ one prior art c~txvws n~ ~4v1~
tape.
6>?MMTIR7f l~Yt ~CIiF's ~N'~Nq~'.,'~(7N
The longstanding but heretofore unfulfilled rxeed for such a seaming tape is now grovid~:d in the form of a tape having a plurality of preferably metallic, toothless bracing members disposed traneverse~.y of amd in overlying so ~ar urada~lyfav~ rPaation. tn the ~rehbix~ aaf thp tape. Suoh Jaraviau~ mosn~ore prcavido ,csea~s'ia34ss~ ac3cyiecii:~ytn r~.~r 1 r9 t?taat cc~am sagainat 3a~a~3c11ng aaad, 3.x5 raxn7,incati.nn mittr an r~r~h~ra i vas, grevent separation of the webbing from the base paper.
It is therefore seen to be the primary objcot of ~.5 thig 3.nvent~.on to provfda a seaming tape that el~.m~.na~.es the lifting of abutting carpets at the s~sam that occurs when prior art seaming tapes axe used.
~. ~lras~,llr rr~.l.~.lwad. ahj.er4: 3~ t;ca ~xrrxv~ldc~ r~uch a a~ciaxulax~ ~a~re ~lxal.. axleolx~aL.a~ w~lr vlln~
20 7Ct is another ob;~eat og the invention to provide a seaming tape having a removably mQUnted base shoot so as i:a roctur_~a the tkxs~cknrr~a nF fi,n ~s.ptndn~t 1-.a~a a~9~c~r la~i.1'f~
~?UI].(lCtl l.V axe E~auxitxc3 v~ ct~1)as:dtx4 s~agø.m~m saimay 6.ixv a.~wa..
thereat by providing an adhesive re~.easr~ coating on the 25 base sheet.
The invention acaoxd~.ngiy comprisea tho features of oonstruotiun, csombinatimn of elements, and arrang$ment of parts that will ba m~camplified in the construction he~reinaftar sat forth, and the scope of the invention w3.~.1.
39 be indicated in the a~.aims.
rheas objecetives and advantages obtained by the improved seaming tape of the invention which is used for ~canneat3.ng and joining edges of aarpei~ at a seam, the general nature of which may be stated as including a base strip of flexible sheet materials a strip o~ open mesh material having a longitudinal axis and secured in an overlying relationship to the base sheet: a plurality of longitudinally spaced rigid flat base members sandwiched between the mesh material and base strip and extending across the longitudinal axis o~° said mesh materials: and a thermoplastic adhesive material overlying the mash material and braces members For banding said mesh material to a banking o~ the oarpet with the lox~gitudir~al axis of they mesh material generally aligning with the seam o~ the carpet whereby the braes membcrr~ oxtend across said seam tai reduce buckling at the seam.
S~tT~,'~' l9~gClt~CF'~~OIN 4F T~ 11R~SP
For a fuller understanding off' the nature and ab~eats o~ the inve~ntian, xeferenae should be made to the following detailed description taken in canneGtion with the aooompanying drawings, in whioh:
~~~ls ~ ~s an exploded, perspective view of an embodiment which illustrates tlx~s invent~.ons F7~G. 2 is an en~.axged fragmentary Sectional vi~~r of the seaming tape placed along the seam on the booking of two adjaeen~ sevtians a~ varpeting before boring heat sealed ~5 thereto:
Fzc~. 3 is~ an exploded perspective view of another embodiment a~ the seaming tape a~ 'the invention; and Flt3. 4 iss a enlarged fragmentary sectiana7~ view simi~.ar to FTG. 2, showing the seaming tape embodiment of Fro. 3 placed along the seam of two adjacent, seatians of carpet.
similar numerals reger to similar parts thr~ughout the drawings.
D$BCR~PTTCrN A~' THE ~Rn7~aRR3~D ~IMmOD~Mk~NT
Rsperring now to FxC. ~., it will there ba seven that a composite structure that is iiluFatrative of the invention is generally designated 9Ø
As in convan~tional heat bond seaming tapes, the base means 12 ~or the tape is an elongate, ~lexi.b7.e~
materxa~. such as steps paper Qx various types of lightweight paper, or could be Formed o~ other anateria?.s 30 such as cloths, p~.astic oz- they like Currently used For many seaming tape constructions. In the pre~az~red embodiment, the tape will have a width oil approximately ~ 9./2 inahe:~.
A thin layer of ther~mosetti.~ng thermop~.astic adhesive 14 of the tape readily used in the carpet,sea~mi.ng 9.5 art, an example of which is set ~az-th in t9. s . patent No.
4, 416, 79.3, is applied to the operatives surface 16 of the base means 12 to seaure~ the webbing 3.8 thereto. Apt olt~arly shown, the webbing 18 is an op$n mesh material ~ax"xned of fiberglass, ny7.o~n, polyester or other types off' s~rnth~xtic 20 fibers well known for the csonsctruat~.on of su~sh mesh mataria~.s ~.n the r~arpet saaraing art. ~'ust as in conventional s~e~aming tapes, it is the Lunation a~ the webbing 18 to keep the carpet seam 9.~ (T~~G. 2) from separating when the aarpet is stretched. ~lthouc~h such 2s webbing, in .aanventional types, usually provides its intended funati.on, it do~a so at the cost ~s~ the paakiaag, ar li~ting, at the seams that is a~tesn apparent when canventiona7. tapes are used. Such buQk~.~.ng occurs laec~ause the webbing is flexible and responds to laterally da.reated 30 Farces - such ~'oraes being generated by carpet stretcshing by buckling along its ~.ong5.tudinal axis a~ syanmetrY~
The peak~.nc~ problem, and the web drag probl~sm as well, are overcome by providing a plurality g~ brace members, collectively designated 20, disposed in overlying relation to the webloirzg 18, transversely trnereof in the embodiment shown in FT~.':a;~ . 1 ane:~ 2 .. The bracer 20 are shown in substantially parallel., ec:~ui.distaritl ~% ~~~aced relation to one another, as sl.mh arran~.~emen.t is k:~el ieved to be optimal. . However, the brace memlaers 20 ccsuld be disposed -Ln mutually: oblique, non-equidistantly spaced re'~ation to one another and still provide a tape having anti-pea~;ing p:roperti.es s~upe:ruor r_o the tapes of the prior art.
Braces 20 preferably are t:ormed of a ri~:~id metal such as strap steel having a Gauge range of from 0.0%'0 to 0.040 inches with the preferred range being between O.U25 and 0.031 inches.
The braces may be ov,~il-shaped as shown in FIG. 1 or may be rectangular-sr~aped as :-,h~owr~ in FI:G. 3, and have a length within the range of between l l /4 in~~rne~~ arid 21/.'? inches with the preferred size being approximately ~.3~'4 inches. The brace members have a width within the range of between 1%2 inch and 11/4 inches with the preferred ~;~~idtln being _'~i 8 inch. However, these dimensions can vary s::mewlnat: wi.tholat eLfecti.ng the invention.
Although metal_, such ~::v the strap ste~eu, as ;:yet forth above is the preferred material c~~f x:>races 20, other types of suffi.c:iently thin and rigid materia_s, such as zrarious types of high-strength plastics or t:r~e like, ~:ould be used although metal has proved to be most satisi=actory.
Suitable fastenirug means, such as staples 22 or various types of contact or 1.::~t,. F-ex adhes i.vcf, ar e: employeca to secure the brace members 20 to tt,.t= base means 2 ? . t'~s shown, the webbing 18 is disposed i.:z sandwir::hec~ relat=.ion between the bracing members 20 and the base means 12 in the embodiment of FIGS. 1 and 2. As set forth above, the individual brad members 20 preferably are metallic in c:ompositic;n and have r~o teeth. Ar;cordingly, members 20 do not serve the .:a:ne funct:ioru as t~ie tooth-carrying brace members (not shown) of the prior a;rt, which tooth-carrying brace members are themselves-> disposed in sandwiched relation between the webbing and the base means. However, these prior brace members do not: serve t:o ~>r.event web c:lrag, nor do they contain thermoplastic adhesive:,. Likewise, these prior art braces are used on a tape which _rs.es a water based liquid latex which is poured onto the backin:~ papers arid web~;ing and require a curing time of approximately ~'4 hours a~ld c~oE:~. nr~~ use a seaming iron.
These prior brace memb~er~:~ are designec:3 c nly t:o ruold the carpet together until, the latex adhesive has dr:i_ed and not to prevent buckling.
A layer ~~f conveni~ion<~1 thexm.>pla~>tic: adtnesive means 24 of the tape well known in t.rw~ ,carpet seami.n<.~ art and presently used in other carpet seamir~cx tapes, i:; appl._i_ed in overlying relation to the webbing 18 and tc~~ t:he braces 2(n, to complete the novel seaming tape. As in conventional tapes, tine novel tape is placed in underlying relation to the seam to be formed, with the longitudinal axis of symmetry 2f~ of the rape 10 lying in substantial registrati~~>n with the seam t_c be formed so that the stresses appearirng a'_ t:he seam wi 1.1. tie evenly distributed throughout the tape 10..R usual heat seaming iron, not shown, is employed to melt t:he tinE:n:woplast:i.c adhesive '~~1 in a conventional 2U manner so that. a bond ::a..~ be est:,ub:li;~hed between the adhesive 24 and the respective bac;:k .ng,a 28 ~of ~:he abuttinc; carpets 30 and 32 so that when t=he adhes~.vF:~ 24 rehar.dens, the abutting carpet edges will bond with the ad:~e5:ive 24 and hence with each other. Web drag is prevented by t:he braces 20 whi~~ii prevent the webbing 18 from lifting as the iran travel:: the leriath of the tape.
The steel brace members 2c~~ successfully resist peaking at the seams, even when the seam is subjected to substantial stressing. Also, by preventing separati~~n of the webbing 18 and the base means 12, thc: brace mem.:bers .'~?C~

maintaih the structural 9.ntegr3.ty of the novel taps l0.
Tn a sl~.ghtly 'modified farm of the invention (F7LG.
3), surface 16 of base sheet 12 pFeferably is coated with a si.lieorie coeai;i,rig 3A wha7coby ~lioo'N 17 i sx r~»isi 7.y remaVc.'iblE.
from the .remaining components of the seaming tape and in particular from adhesive z~, a>eter >~E~e tapes k~«~ b~~ ~~~d to the Carpet backings al.dng seam 19. The si>Licone eaata,ng is of a type ca= adhesive release material we7.1 known in the art, and will. enable base sheet 12 to be easily peeled from 1p the bonded adhesive 14 and webbing ~.8 afte:r webbing ~.s and brace members 2o area heat sealed to the carpet basking by adlxesivQ Z4. ~t~Inis ~tactt,~Jt~d s~.rea~tzsx~ ~il~ ~ '~~.
primarily when seaming tape 10 is used with designer.a~'ea rugs which wi3.1 reduce the thickness o~ the tape after :19 being bondt~cY Lu i.lae~ aarxnts lay aliminwtioxu of baas~ okaoot 7 ~
in tlse final aasemble~d ~oinad carpet.
,'t~ ~ux~thar ~nodi~ivairier~ of i=9.a~ar ., im~rnvAr3 R6ai3minG?
tape is shown in F7CaS . 3c arid 4 and is indicated genera7lly aC db, 9CapE~ JO lx; ~laul~.a~. In mariir rr.~a~ood:.o dso t.l~~w i=apc~
2o embodiment shown in 1~7~as. 1 asad 2 in that it inaxudc~s a bases sheet or strLp 12 which may have a sillicane costing 34 thereon to which is appliQd adhesive layer 24. ~ pl~axality o~ brace members 38 axe sandwi.ohed between strip 12 and mesh web 718 and are secured therebetween by adhesive layer 25 14 eliminating the need far any staples or other types a~
att~tahment mearig. Membesrs 38 serve the same function as members 20 discussed above, oxaept they preferably have the rectangular con~igurati.on and Gharacstex~.stics set ~axth above. ,~ layer of thermoplastic adh~sive 24 is then 3(3 applied over web 18 in order to bond it to the oa~'pet backing 28 as shown in F$G. 4.
~~,y this, s.P~,.~pr,~. Pv~tacsr7_i~npt,,t: the location of members 38 between web 18 and base sheet 12 e~,im~.nates tlqe need of any additional securing means, and thermap7.astic adhesive .,, - 2,~~9~,~UC~
24, when melted, will band into the bottom ax saaondary backing 40 of the adjoining carpet sections 30 and 32. In tapes ~6, base sheet ~.2 preferably has a width of appxoximately s 1/2 inches with the adhesives and mesh havi.z~g a width of approximately 2 ijz inches leaving an unaoated boxder 42 of approximately 1/2 inch along each longitudinal edge. preferably, brace membeirs 3$ era spaoc~d aqualXy apart throughout the longitudinal length,of the tape generally within the range oil between 1 intsh and 5 inches, and preferably between the range of between 2 inch's and ~ iriahes. Bxaae members 2o preferably havo a similar spacing.
It will thus be seen that the ob~eots set faith above, and thane made apparent by the px'eaeding description, era efficiently attained, and since cs~ertu3.n ahangea may be made in the above canstruati.on w:Lthout departing from the saopa a~ thc~ invention, it i~c i~xtanded that a7.1 matte~r~t c~antained in the foregoing c~ascxiption a~x shown in thca aoaampanying drawings shall he interpreted ag 2A illustrative and not in a lim;Lting sense.
Tt is also to be understood that the following claims axe intended to saver all of the generi~x and speGifia features of the invention hero~.r~ describQd, and all stateanents of the scope of the invention whioh as a matter of languas~e might be said to fall. thereb~tween.
Accordingly, the improved carpet seaming tape is si.mplifisd, provides an effecti.~re, safe, inexpensive, and effiGie~nt tape wrhiah achieves all the enumerated ob~eativas, provides for eXiminating digficulties encountered with prior tapes, and salves problems and obtains new results in the art.
7Cn the foregoing description, certain terms have been used for brevity, clearness and understandings but no unnecessary limitations are to be implied there~~rom beyond w~~~~~~.
the regui:xement of the prier art, because such terms ar~
used far descriptive purposes and are intended to be broadly Qon$trued.
T~toreover, the description and illust.xation of the invention is by way o~ exempla, and the scope of the invention is not limited to the exact t'ietails Vhflwn ox dagcri.bed .
Having now described the features, discove~°ies and principles of the invention, the manner in which thQ
improved carpet seaming tape is constructed and used, the characteristics of the aonstructi.on, and the advantageous, new and useful. results obtained: the new. and useful structures, devices, elements , arrangements, party and combinatians, are sat forth in the appended claims.
2a

Claims (13)

1. A seam tape for connecting adjoining edges of carpet at a seam thereof including:
a base strip a~ flexible sheet material;
a strip of open mesh material having a longitudinal axis and secured in an overlying relationship to the base strip;
a plurality a~ longitudinally spaced rigid flat brace members secured to the mesh material and extending across the longitudinal axis of said mesh material; and a thermoplastic adhesive material overlying the mesh material and brace members for bonding said, mesh material and the brace members to a backing of the carpet with the longitudinal axis o~ the mesh material generally aligning with the seam of the carpet whereby the brace members extend across said seam to reduce buckling at the seam.
2. The seam tape defined in Claim 1 in which than base strip is removably mounted on the open mesh material.
3. The seam tape defined in Claim 2 in which the base strip has a release coating on one surface thereof for removably mounting said base strip on the open mesh material.
4. The seam tape defined in Claim 3 in which the releases coating is silicone.
5. The seam tape defined in Claim 1 in which the brace members are secured to the mesh material by staples.
6. The seam tape defined in Claim a in which the brace members are metal.
7. The seam tape defined in Claim 6 in which the brace members have a gauge thickness of between 0.20 inches and 0.40 inches.
8. The seam tape defined in Claim 7 in which the preferred thickness of the brace members is between .028 inches and .031 inches.
9. The seam tape defined in Claim 1 in which the brace members extend transversely across the mesh material perpendicular to the longitudinal axis thereof.
10. The seam tape defined in Claim 1 in which the brace members are spaced longitudinally apart, between 1 inch and 5 inches.
11. The seam tape defined in Claim 1 in which the brace members are metal having a rectangular configuration with a width of between 1/2 inch and 1 1/4 inches, and a length of between 1 1/4 inches and 2 1/2 inches.
12. The seam tape defined in Claim 1 in which the brace members are sandwiched between the base strip and mesh material.
13. An article of manufacture for permanently interconnecting the edges of adjoining carpets to provide a seam that lies substantially flat, comprising:
a base strip comprising an elongated, flat strip of flexible sheet material;
a first reinforcing means comprising an elongate, flat strip of open mesh material disposed in overlying relation to said base strip, in substantially longitudinal alignment therewith;
a first adhesive means for fixedly securing said first reinforcing means to said base strip;
a second reinforcing means comprising a plurality of substantially flat, rigid brace members disposed generally transversely to a longitudinal axis of said base strip, said second reinforcing means being spaced along a common length of said base strip and said first reinforcing means;
means for fixedly securing said brace members in overlying relation to said first reinforcing means;
a second adhesive means overlying said first and second reinforcing means;
said second adhesive means being a thermoplastic adhesive so that heating said second adhesive means causes the backing of the respective edges of said adjoining carpets to be adhered to said second adhesive means upon cooling thereof; and whereby said second reinforcing means prevents peaking of said carpets at said seams and further prevents separation of said fist reinforcing means and said base means during the process of melting said second adhesive means.
CA002090984A 1990-11-13 1993-03-04 Improved heat bond seaming tape Expired - Fee Related CA2090984C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US07/742,400 US5198300A (en) 1990-11-13 1991-08-08 Heat bond seaming tape
CA002090984A CA2090984C (en) 1990-11-13 1993-03-04 Improved heat bond seaming tape

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US61198590A 1990-11-13 1990-11-13
US07/742,400 US5198300A (en) 1990-11-13 1991-08-08 Heat bond seaming tape
CA002090984A CA2090984C (en) 1990-11-13 1993-03-04 Improved heat bond seaming tape

Publications (2)

Publication Number Publication Date
CA2090984A1 CA2090984A1 (en) 1994-09-05
CA2090984C true CA2090984C (en) 2003-10-28

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Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5693171A (en) * 1990-05-11 1997-12-02 Orcon Corporation Method and apparatus for seaming carpets
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US5198300A (en) 1993-03-30

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