US2646575A - Sink and drainboard assembly - Google Patents

Description

July 28, 1953 A. H. 'GALLE 2,646,575

SINK AND DRAINBOARD ASSEMBLY Filed May 18, 1949 2 Sheets-Sheet 2 'IIIIIIIIIII Patented July 28, 1953 SINK AND DRAINBOARD ASSEMBLY Andrew H. Galley, York Mills, Toronto, Ontario, Canada, assignor, by mesne assignments, to

Luxene, Inc., New York of Delaware N. Y., a corporation Application May 18, 1949, Serial No. 93,865

In Canada March 18, 1949 4 Claims. 1 The present invention relates to a sink structure and a sink bowl and drainboard assembly designed to facilitate the installation of the sink and to obtain important advantages and economies incident to the advanced design and structural features thereof. The advantages include an improved appearance with an uninterrupted or unbroken sink surface and added durability particularly at the junction of the sink with the drainboard deck surface or composition deck covering material when the latter is employed. It is importantly of a design which makes it practical for a small home owner to make his own installation thereby avoiding the cost of outside assistance, as the mode of installation is such as not to require the employment of a highly skilled artisan.

In the past most sink bowls have been made of enameled steel wherein the top flanges of the bowls have been of a thickness of from and heavier. As a result it was generally unsatisfactory to have the flange of the bowl rest on the sink deck due to the thickness of the flange edge and the general practice therefor has been to install the bowls below the sink deck with the use of separable moldings between the flange of the bowl and the surface of the deck. In such installations to obtain satisfactory appearance, with properly closed seams for sanitation and water tightness, it has required the employment of highly skilled workmen. Although many attempts were made to overcome the difficulties in producing satisfactory sink installations in an economical manner none, so far as I am aware, was entirely successful when carried into practice commercially on an industrial scale.

In accordance with the present invention the referred to diflicult-ies of installation and other disadvantages of prior art structures are overcome by the employment of a single piece sink bowl drawn or pressed from sheets of stainless alloy of relatively thin gauge, of approximately of an inch in thickness. formed with a marginal, horizontal flange at its upper edge and the extreme edge of the flange is ground or beveled to a degree suflicient to obtain a relatively smooth joining between the drainboard deck surface and the flange when installed with the flange bearing directly on the uppersurface of the deck. In further accordance with the invention the integral bowl flange is employed as the marginal molding and further as a clamping The bowl is means for the rigid attachment of the sink to the L 2 drainboard in conjunction and in cooperation with an improved and simplified securing means. The improvedsecuring means comprises metal straps secured, as by welding or brazing, to the outer vertical surfaces of the bowl and provided with apertures to receive the ends of special clamping bolts. The bolts are fitted .with threaded adjusting nuts adapted to apply a clamping pressure against the under side of the drainboard desirably through interposed washers so as to effectively secure'the sink assembly.

In the simplified arrangement of the invention the bowl or basin flange is of substantial width or projection thereby to eliminate the requirement of other and separable molding. The method of assembling permits the flange to function as a clamping means in the securing of the sink by the special boltingarrangement. Moreover, as afurther result of the substantialprojection of the flange, it permits of adesirable degree of tolerance in the cutting of the drainboard opening thus to permit of a satisfactory assembly by relativelyunskilled labor. I have discovered that these desirable results are obtainable in the manner as hereinafter more fully described by the employment of a unitary sink formed of stainless alloys of such characteristics as to be of adequate strength when made of the required relatively light gauge'sheet metal.

An object of the invention is to produce an improved sink structure particularly adapted to facilitate assembly of the bowl with a drainboard or deck to permit of obtaining an improved assembly without therequirement of highly skilled labor therefor.

A further object of the invention is to produce an improved single piece sink bowl structure adapted to facilitate its installation without the requirement of a separable molding to effect a satisfactory joining with a supporting deck ,sur-

face.

flange at its upper edge and'drawn from a sheet of relatively thin stainless alloy and provided with depending metal straps formed with apertures for securing bolts having threaded shanks for the reception of securing nuts positioned to exert a clamping pressure on the under side of the drainboard or supporting deck for securing of the bowl with the flange thereof overlying an upper surface of the supporting deck.

Other" iobjects ands advantages will becomeapparent fromthe following description taken in conjunction with the accompanying drawings in which:

Fig. 1 is a perspective view on thesink structure made in accordance withthe presehtinvention and inverted in positionmmithexdrain- 5 bowl is further formed at its upper edge with a continuous marginal horizontal flange It! in-- tegral with the side and end walls and desirably. ofiaithickness OffF'aibOut' g/Iflflllfilf an inch. This .fiange in as shown, is ofa width-*- or outward extension from the side and end walls to eiprovide for a substantial projection outwardly gimmtheiwallsso as to provide a continuous or finished molding of pleasing appearance. The i'ifiange liiibycover-lying engagement with the upboard or deck of a sink installations-as;aeprelim-iflsgzpenwuiliace .ofitheideck 2 at the framing of the inary step in the assembly pperation;

Fig. 2 is a similar view with the sink or bowl removed after the tracing of thefiutlinesofsithe bowl for location on the deck and havingidotted line indication for the cutting of an v,gil ning through the deck for the reception of the"bowl or sink;

'--Eig:'-3--is* a perspectivewiewiof the supporting cabinet with the 'fi'nished ripening in -the deck" for the -reeeptionof theebowl 'and with thedatter shown in posit-ionto"be-lowered intoits assembled relation;

Fig. 4" is a view -oi the sink structure =ofilthe presentinvention showing the bowli in'side elevatiom and" assembled within' ithe opening 1 of the sink deck' winches-shown irrbrokenxsection;

Figfifi isean 'explodedview. in side; elevation of the specialelamping-bolt andassociated nut: and washer elements Gis-a vertical sectional yiewrof aporti'on of the improved bowl astructurexassemhled with; the drainbo'a'rd for supp'ort and wvherein': the drainboa-rd has 1 a 21 de'ck coverings-of ilinoleum .1 .01. .the

"-l-ike,-'=arid -Fig. 7' 1$a detailed:.verticalusectionswiew pita portion 0f: am assembly employing). ancomposition deck covering-which is scarfed .or countersunlr. :to produce a flush joint -connectioniwith:theJfiange ofthe bowl or sihk.

i Generally -speakingithe presentsinventioncontemplatestheprovisionmi asiiiksonbowl offisinglc piececonstructiomiformedibwflirawinga orepressing-sheet m'etal ofnr'el'ati vely =iight sgaugex. and which may desirablybea corrosion resistant alloy such asithe alloy? known under. thettradeemark of Monel or other suitablazcorrosionrresistant metal alloysiich-as a inickel-echromium riron alloy. It further contemplates amrimprovedsfstructural design and arrangement whereini.thenmitary. sink bowl-vie i'ormed with-5a. horizontallya'emen'ding :upper margina1 -1iiange1adaptedtitrithexassembly to provide an integral molding xfinishnandtpto further function; iinucooperation cwithnarspecial -.clamping bolt.-arrangemenhnforirigidiy clamping eof. the sink to .a supporting. de'ckianchnvithinxan ."opening cut therethrmlgh.

A preferred 'embodimentofglthe' featuresof ..the invention is shown in the drawings wherein like reference. numeralserare a appliediato. .zcorresponding parts in the several: views. shown therein I" indicates: air-suitable: cabinet 'structure supporting the drainboardzor fdecki 2, which-may be of wood as customarily: madegand is provid- 1 ed with a out out opening 3 for the reception and positioning of the'sihk bo wl were assembled therewith.

ia-"she'et. of corrosion.resistantealloysmetal'i: oi a openingeprovides 'support for the bowl and affords a means-to contribute to the clamping of theibowlefonrigid installation. As a result of if its, substantial width or projection from the body of the bowl the arrangement permits of a wide tolerance in the formation of the deck opening without impairing lthe security of and appearancenf lth final assembly.

.i Aslbest ishownwin-Figsr i; 5;--.and16 a; simplified and -'effective .meansr: foresecuring: or? clamping thebOWli'iElBIIlEIltliOi the :drainyor deck board; is provided. 3 Thisvsecuring-meam; as showniis composed: ofzrmetalrstrapsi 12 secured, asgby weldin nri :brazing'. to (the .zside .1: and-"endwalls' of i. the

'sink.=member: and :provided' witmprojecting lower 40 nuts .2! 8. :iThet nuts =l 8:;are' vertically-;=adjustable lthereonzzto asp-reducer clamping ;;pressure against ithe underside :of :-.:the "deck by engagement therewithnthrcugh' interposed r-washers or beariing sielements :19 ;;having .centrally positioning rbosseswmfzfitted :-.to'..the: central\ opening of the 'nut.

iiAszbestshown imFigs. Mi and 6 the straps l2 ofithezclampingf means are formed of. relatively thinefsheetn metal which ermits. of their being 5 :passed-ithroughthe. drainboard'opening in the assembling 5025? the: bOWlrWlth the supporting deck :2. #AswillEbe-noted, 'theinwardextension. 15 of the clampingboltis projected inwardly through ithesaperture 4310f the-straps to -provide a beariingnthereon inssuchpmanner that the resulting .clamping pressures are applied to thestraps ver- .-'tically.--and-iengthwise of the. straps whereby the pressures are:-resisted by'the metal on edge. iThisvgivesraddedistrength and rigidity to the 'iastening. and: with reduceddanger of loosening .ot the strap elements.

.Thesimplioity and facility of installing theimprovedesinksbowl and 'drainboard assembly will .be-ibestiunderst-oodbyreference to Figs. 1; 2 and-3.

.-As:-.illustrated in.Eig.: 1: the sinkcbowl is placed iupside downaupon the sink. drainboard orideck 2 ins-the [30511111011201itSdESlIEdlOCECUOII and. a pencil .lineisdrawnon. the deck using the outer ,edgeicfithe flange IB as a guide. .Thebowl is then 7 removed and asillustrated .in Fig. 2. a cutting line .mawthen .be' drawnabout one-half inch-within theguidedrline andis-indioated as a-dotted line 22 :for the purpose of contact. The-opening 3 in the 'rdeck.=.isi.tthen1tcutimrthe'nline'22. The bowl axis 7 5 :themplacedrin thezdeckppeningthe elearancebeing such as to permitpassage ofthe strap elements l2 permitting the-bowl to be lowered substantially flush with the top surface of thedeck,

and with the flange H] of the .bowl providing-a rest hearing by overlying the marginal edge surface of the opening 3 as best shown in Fig. 4. The clamping means, composedfof the bolts 14, adjusting nuts l8 and washers I9 are then assembled with the straps l2 by inserting the horizontal bolt portions l5 within the apertures and in seating registration with the notches. After this, as will be understood, the nuts l8 are turned to a degree suiflcient to obtain the desired clamping pressure, through the interposed washer I9 against the under side of the deck, so as to rigidly clamp the bowl in its assembled position. As here shown the basin or bowl is generally rectangular in contour and is provided with two of the securing straps l2 on each side surface but it will be understood that the number of metal straps employed may be varied depending on the size of the bowl and the amount of pressure required to pull the flange of the bowl to a tight seal on the upper deck surface. Also, as will be appreciated a suitable cementing compound of a waterproof nature may be applied between the basin flange and the upper surface of the deck in the making of the assembly.

While in the Fig. 4 illustration the basin is shown supported and clamped in position by direct engagement with the upper surface of the drainboard it will be understood this may be modified by the employment as shown in Fig. 6 of a drainboard 2 having a composition surfacing material such as a linoleum deck layer 23 in which instance the flange ID of the sink will bear directly upon the deck composition surface.

While as described the relative thinness of the light gauge metal of the flange [0 provides a molding joint between the bowl and drainboard, which is substantially flush with the surface of the latter, a fully flush construction may be obtained as shown in Fig. 7 by scarfing or countersinking the composition deck material at the marginal edge of the opening 3 and of a depth to receive the flange In so that its upper surface coincides with and is in the plane of the upper surface of the composition.

It is to be observed that the present invention provides a unitary type of sink bowl of special design to simplify installation in a sink and drainboard assembly and adapted to permit its successful installation without the requirement of highly skilled labor. It is, moreover, of a structural arrangement which permits of effecting a very satisfactory joint between the bowl and the deck surface without the employment of separable molding and one wherein the integral flange of the bowl provides a molding connection of a desirable and pleasing appearance. The invention structure further provides simple and effective means operative in conjunction with the bowl flange, for rigidly clamping of the sink bowl in its assembled position and in a manner which permits of its being readily removed for replacement of the deck surface when desired.

Although the present invention has been described in conjunction with preferred embodiments, it is to be understood that modifications and variations may be resorted to without departing from the spirit and scope of the invention as those skilled in the art will readily understand. Such modifications and variations are considered to be within the purview and scope of the invention and appended claims.

I claim: Y

1. An sink bowlunit formed of a corrosionresistant alloy and provided with an integral marginal outwardly projecting flange of about ti oo" thickness at its upper edge adapted to overlie the marginal edge portion defining a sink deck opening and provided with metal straps secured to the bowl in position to pass through the opening and having portions projecting from the under side thereof and adjustable securing means engaging the projecting portions and an under surface of the sink deck adapted in cooperation with the flange rigidly to secure the bowl in position, said securing means comprising bolts having threaded upper end portions and inturned lower end portions having notched under sides and adjusting nuts threaded to the bolt upper ends.

v2. A sink and drainboard assembly comprising a unitary sink bowl formed of a pressed sheet of corrosion-resistant alloy, said drainboard bein provided with an opening conforming to and slightly larger than the body of the bowl to receive the bowl positioned within the opening, said bowl being formed with an integral, continuous, horizontal flange projecting outwardly from its upper edge in position to overlie the drainboard edge surface defining the opening and said bowl having vertically positioned metal straps secured to its outer surface to project from the under side thereof and positioned to pass through the drainboard opening and adjustable securing means engaging an under surface of the drainboard and comprising bolts extending inwardly to engage the strap projections for clamping of the bowl in position in cooperation with the overlying flange.

3. A sink and drainboard assembly comprising a unitary sink bowl formed of a corrosionresistant alloy, said drainboard being provided with an opening conforming to and slightly larger than the body of the bowl to receive the bowl positioned within the opening, said bowl being formed with an integral, continuous, horizontal flange projecting outwardly from its upper edge in position to overlie the margin edge surface deflning the drainboard opening and said bowl having vertically positioned metal straps secured to its outer surface and having apertured portions projecting from the under side thereof, said straps being positioned to pass through the drainboard opening and adjustable clamping bolts having threaded nuts positioned to apply pressure against the under surface of the drainboard and having inwardly extending notched end portions engaging the strap projections within the apertures for clamping of the bowl in position in cooperation with the overlying flange.

4. A sink and drainboard assembly comprising a unitary sink bowl formed of a corrosionresistant alloy, said drainboard being provided with an opening conforming to and slightly larger than the body of the bowl to receive the bowl positioned within the opening, said bowl being formed with an integral, continuous, horizontal flange projecting outwardly from its upper edge in position to overlie the margin edge surface defining the drainboard opening and said bowl having vertically positioned metal straps secured to its outer surface and having apertured portions projecting from the under side thereof, said straps being positioned to pass through the drainboard opening and adjustable clamping bolts having threaded nuts positioned to apply pressure against the undersurface of the drainboard and having inwardly extending notched

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