US2521885A - Magnetic retainer - Google Patents

Description

Sept. 12, 1950 J. G. VASQUEZ MAGNETIC RETAINER Filed Feb. 26, .1947

- INVENTOR. 4 J 61 Vasyz/ez AITaQ/Vz-V I Patented Sept. 12, 1950 .MAGNETIC RETAINER.

' :3 armicn o if awzs, 1947iS IN-T73 a'ol nns.l (chem- 70) i Thisinvention relates to magnetic holding devention may includemeans to 'moun a magnet, vices and particularly toa means for retaining havingqmaximumattractivepower on one mem a door, drawer or the like in'cl'osed or retracted berof doorand-frame construction or a drawer p q si' lq -r, v p an'dwirame,atheuother member -munting-;'a,n An 'ob'j'ect'of the invention is t'o provide an ggjarmature contacting the magnet when the 'door improved form of magnetic retainer adapted to or drawer is closed and being flexiblyimounted increase the" attraction of the magnet for its for a djustment into complete metal to metal armature, the magnet being mounted preferably contact ;;with the: polesu'rfa-ces of the 1' magnet.

on a door or, drawer and its;armature.on the Referrlhg--niorein detail to thesfig'uresof the frame softhat the armature willebe in contact drawing, and first to the form-of the invention with themagn'et when the .dooror drawer is shownin Figs.1',.-2 and 3-,-it1wi11 be seen; that in closed osition. N w o a;;,knob ll! lis'amounted adjacent the free edge nother. object of the invention is toprovide of-z a idoor-l2 andatta'ched thereto by suitable a'fle'xible'backing for the armature or the magscrews. Mn. .Themknob'. lUmCOVeIS' a hole '16 net so that there may be sufficient angular adthrough the door and within this hole or openjustment or movement of the armature or maging is mounted a small magnet 18 such as one net to assure complete contact between the of an alloy of nickel or other magnetic metal pole surfaces of the magnet and the surface having extremely. high attractive power. As of the armature. shown in this figure, the magnet 18 is secured With the above and other objects inview, 20 to the knob In by a screw 20 positioned centhe invention may include the features of contrally of the magnet l8 and threaded into the struction and operation set forth in the followknob l0. ing specification and illustrated in the accom- Mounted in the door frame 22 is an armature panying drawing. 24 in position so that as the door i2 is closed In the accompanying drawing annexed hereto 26 the armature 24 will enter the opening IS in and forming a part of this specification, I have the door I2 and permit the armature 24 to shown the invention embodied in various forms contact the end face of the magnet l8. The of retaining means but it will be understood armature 24 is of such size that it fits loosely that the invention can be otherwise embodied within the hole IB. and that the drawing is not to be construed 30 To secure the armature 24 in position on the as defining or limiting the scope of the invendoor frame 22 a screw 26 passes through the tion, the claims appended to this specification central part of the armature and enters the being relied upon forthat purpose. door frame 22. Between the armature 2t and In the drawing: the forward surface of the door frame 22 is Figure 1 is a view of one form of the invena soft pad or layer of compressible material such tion, the magnet and its armature being shown as felt 28. When the magnet I8 is brought into separated by a short distance. contact with the armature 24 by closing the Fig. 2 is a view taken from the left-hand side door [2, armature 24 may adjust itself into full of Fig. 1. metal to metal contact throughout its surface Fig. 3 is a view taken from the right-hand due to pressure of the magnet l8 against it and side of Fig. 1. by compression of material 28.

Fig. 4 i a view i ilar t Fig. 1 showing Referring to the form of the invention shown modified form of the magnet and mounting in Fig. 4 it will be seen that a movable memor support for the armature, and her 30 has a knob 32 on one surface and a cir- Figs. 5 and 6 are detail views showing difcula ma e 4 n t e other. e k ob and ferent methods of retaining the magnet or magnet being held in position by means of a armature in place. single screw 36. On a relatively fixed member In the above-mentioned drawing there have 38 is an angular member 40 forming the armabeen shown several embodiments of the inventure for magnet 34. This member 40 is set back tion which are now deemed preferable, but it 5Q from the edge of member 38 so that the outis to be understood that changes and modificastanding magnet 34 may contact its forward surtions may be made within the scope of the apface when the movable member is in closed popended claims without departing from the spirit sition. Between the lower surface of the angle of the invention. member 40 and the member 38 is a thickness or Briefly, and in its broadest aspect, the inpad of flexible compressive material 42 similarto the belt shown at 28. By means of this material 42 the member 40 may adjust itself angularly to contact the magnet 34 over its full area. To retain the member 40 in position on the fixed member 38 and permit the necessary angular movement, a central screw 44 is provided as shown.

In Fig. is shown another form of magnet in which the entire knob 46 is of magnetiaable metal attached=to the door "4! by means of a snap ring 5O. The inner endof the metal knob 46 extends far enough to contact a mating piece oi the magnet armature combination.

In Fig. 6 another form of retaining device-for? a magnet 52 for a door or other movable memher 54 is shown. In this form memgne'eur" extends partially within and: alsol-outsideethe'z armature mounted on the frame of the door for contact with said magnet when said door or the like isz'closed, a layer of flexible compressible material interposed between said armature supporting surface and the member to which the armatmerispattached, and a sleeve of non-maginner surface of the door 54. It is attached to its knob 56 by means of a central screw*58 protect the magnet 52,rwhich is somewhat exposed, against: contact; with: metals that! might cause: demagnificationya: sleeve? 60:01 plastic: or other non-magnetizazbl'ermateriah may. be fitted around? the; magnet "smthartsthe :magnet T will be enclosemby the sleeves i "'I-claimz I t 1: A retainer-"fort doorsrarrd; thelik'ei having a recessextending therethroug'hrconiprising a mag net disposed'zin :said2recesls1andihavirig'za V pole si1r face' afljanent therinn'er surrace -of the door, an armature mounted on; the door frame *for contaUt-w-ithsaid magnet: wliemsaid door is closed? flexible means betwe'enitlieiarmature' and the door: frame for supporting said armaturefo'r;

netic material surroundin said magnet and extending-beyond said pole face thereof to protect said magnet.

' "EEFEREN0ES'GITED1 I The. following references are of. recordfin;the

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