US1757404A - Radiator-filler cap - Google Patents

Description

May 6, 1930. J. F. WILSON RADIATOR FILLER on Filed March 2, 1929 Patented May 6, 1930 UNITED STATES PATENT OFFICE JOHN F. WILSON, OF DETROIT, MICHIGAN, ASSIGNOR TO GENERAL MOTORS CORPORA- TION, OF DETROIT, MICHIGAN, A CORPORATION OF DELAWARE RADIATOR-FILLER CAP Application filed March 2,

i The present invention in caps, although involvlng elements of artistlc mer1t,1s directed partlcularly to utilitarian features; and it aims particularly to provide a simple and attractive cap or closure organization which includes, (1.) an annular body, (2) a pivoted lid or top plate, and (3) rotative means, 111- volving no'use of-threads,.for easily but releasably securing said lid in a sufficiently tight relationship to said annular body,which may be threaded to a usual or special tubular element, such as a flanged filler pipe at the top of a radiator or the like.

It is an object of this invention to provide, in a filler cap, cam means, preferably comprising a peripheral ring provided with a projectinghandle, for normally securing a pivoted lid or top plate in engagement with an annular body within which said ring may be permanently but slidably seated in a man ner permitting a limited rotation thereof;

and, in preferred embodiments of this intat ve movement, for a locking and unlocking 0amobjects of thisinvention, in which said lid or plate may be provided with a notched downward projection engageable by a cam surface upon thementioned ring, and

in which said ringmay be so held in an annular depression by an outside collar as to permit and to limit the mentloned sliding romentioned latch, and which said latch may be provided with means obviating unintended release thereof,may be best appreciated from the following description of an illustrative embodiment of said invention, taken 1n con- 1929. Serial No. 344,008.

nection with the appended claims and the accompanying drawings.

Fig. l is a front elevational view, showing an embodiment of the invention as applied to a radiator filler pipe. 1

Fig. 2 is a vertical section taken substantially as indicated by the line 22 of Fig. 1.

Fig. 3 is a horizontal sectional view, taken substantially as indicated by the line 3-3 of Fig. 2.

Fig. 4 is a perspective view, taken substantially as indicated by arrows at of Figs. 2 and after referred to.

In that embodiment of my invention which has been selected for illustration, a filler pipe 11 is shown as provided with both an inturned flange 12 and an externally threaded portion l3,the latter being adapted to engage corresponding internal threads upon 1L5bOCly lei, shown as pivotally carrying a lid The body 14 is shown as annularin form, as provided with upstanding ears or an up standing lug 16 through which extends a pin 17 for the pivotal connection of said lid member, and as provided with a downwardly facing annular depression 18 within which a threadless locking ring 19 may be retained by means such as an outside collar 20. In preference to threading this collar upon the cap body, it may be retained by means such as a set screw 21, the later being shown as serving also to securethe entire cap against rotation upon the tubular member 11. i

The body member 14 isshown as comprising an inner cylindrical element 22 and a horizontal web s3 so formed and proportioned as to provide oppositely facing annular chan- 3, but showing only a locking ring, as hereinnels or depressions 24 and25, respectively adapted to receive annular gaskets 26 and 27; and said gaskets may be respectively advanced by resilient means such as annular plates 28, 29 respectively provided with series of integral and off-set spring tongues 30, 31,the lower gasket 27 being thereby pressed into engagement with the flange 12, or its equivalent, and the upper gasket 26 being shown as normally contacting with an annular projection 32, integral with the lid 15.

It is an incidental but important merit of the described construction that, upon the release of whatever latching meansmay be employed to hold the lid in itsclosed position, the mentioned annular spring means, or any equivalent resilient means disposed beneath the gasket 26, automatically elevates "the: said lidto a sufficient-angle to obviate-the necessity for providing any handle fihereon, although not necessarily to such anrangle .as is suggested by dot-and-dash lines at 15, Fig. 2.

In preference to mounting any peripheral locking ring thereon, itllfi lid 15 .011 its equivalent (whether ornamented or :merely "provided witha roundedxor substantially conical upperxsurfaee, as suggested at .33), include or carry'a doWnwardp-rojeotion 34,- shown .as so notched :at taste constitute the same a hook or latch inember, to provide an interlocking engagement with ,a cooperating part .36 of the mentioned rotatively slidable ring 19; and said ring is shown asp'rovifded with a cam surface 37', disposed between a notch .88, through "which theprojection .34 maybe depressed, and an ornamental handle 39. The projection 34 is shown'as provided withanoutwardly extending-lip 4:0, engage- .a-bleby the cams surface 37:; and the ring 19 is shown as ;provided,-directly beneath the i handle 89.,with a notch .il into which the lip may be-permitted to snap, fora releasable interlocking effect, upon therotation of said ring from the dotted line position shown in Fig. 3 to the full line position shown in Figs. :1, 2'an1d 3..

The mode .of operation having been --.fully ;indicated inf-connection with the foregoing description, it be noted theta notch in a flange 43., which constitutes an outer wall ofthe peripheral depression in which the ring 19 is rot atively slidable, may be of such length asto prevent movement of the ring-19 beyond the respective positionssuggested in Fig. .3 and-the clearances provided there y, .as at 4,4, Fig. 2, should be sliilicient to permit the front of said ring to be resiliently elevated, at will, to a degreesuiiicient for the release of the lip 40- froni the notch 11.

that numerous inodiiiations not suggested herein -might-easi ly be devised,without involvingthe slightest from the present inven- 'tion.

I claim: I

1. Aradiator filler cap comprising: a body member; a iClQSllIFe plate member pi-voted thereto; a th-readless locking ining member peripherally carried by one of: said members and provided with means toholdt-heother of said members thereto,-.said last mentioned member :being provided withca hook and said ring inember'being provided With :a notch "throughwhichsaid book may extend and also with a surface adjacent said notch.

2. A-radiator filler cap comprising :ianannul-ar body member; a closureplate member pivoted thereto; and "a tliieadless peripheral cam ring member 'rotativelyslidaable upon oi-reef said-members and constituting means to engageand-drawtheiother ofsaidmembers thereto.

3. A-radiator iillercap comprising: 2111x3111- nular body member; a-closureplate member movable relativelythereto; and a @threadless peripheral cam member which is irotatively slid-able upon one of said mbers constituting means to engage and-draw the other of said :members thereto-,-tiwo:of-ssaid members being respectively ;provi.ded 'W'llt/hfifi annula-r depression to receive agasketand with a corresponding annular projection tocompress sa i-d; gasket.

4%. .A- radiator filler carp comprising arrann-u'la-r body member; .a closure plate member pivoted thereto; :andga ltllI'QEtCll'BSS peripheral cainmember which isrotativelylslidabie upon one of said members and constitutes mean-s'to engage and draw the-.other'of said members ther.eto,said cam member being provided with a handle and said body member being provided with'both an-annularpassage to receive said cam and a notch .so shaped as to permit a limited relative movement between parts of said members. i

.5. A ,radiator'filler cap comprising: an annular body member; a closure plate member pivoted thereto; and ath-readless peripheral cam member-which'is rotatively slidab'le upon one of-said members and-constitutes means to engagea-nd draw the otherof said members -1'Cl161-6t0,''-Sa1fil cam member being integral with a ring, and said ringbeing retained, in a depression provided in said body-member; by means of anoutside collar.

6. A radiator filler .capcomprising v: an annular body member; a closure plate member pivoted thereto; and a threadless peripheral cam member which is rotatively slidable upon one of said members and constitutes means to engage and draw the other of said members thereto,said cam member being integral with a ring and being retained, in a depression provided in said body member, by means of an outside collar extending into said depression and secured by means which serve also to secure said body member upon a tubular element.

7. For use in a radiator filler cap of the general character described: a body member provided with oppositely facing depressions between cylindrical walls for the reception of gaskets, each of said depressions containing resilient means for yieldably supporting a gasket, and said depressions being defined in part by a web extendingbetween the cylindrical walls of said body.

8. A cap organization comprising: a body member provided with an upwardly-facing annular depression adapted to contain both an annular spring and a gasket disposed thereabove; a closure plate pivoted to said body member and provided with an annular projection to engage said gasket and also with a locking projection; and cam means movable peripherally of said body and adapted to engage said locking projection and thereby to depress said plate and to compress said gasket.

9. A cap organization comprising: a body member peripherally carrying a cam member having a handle; a lid member pivoted to said body member and provided with a projection engageable, for a locking effect, by said cam member; and means operative to lift said lid member upon the disengagement of said projection by said cam member.

10. A cap organization comprising: a lid member; a body member provided with a downwardly facing annular depression adapted to receive a gasket and with an internal threaded portion therebelow; and a tubular element provided with a flange opposite said depression and with an external thread therebelow,a gasket having an annular spring element thereabove being disposed in said depression.

In testimony whereof I aflix my signature.

JOHN F. WILSON.

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