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Publication numberUS2512499 A
Publication typeGrant
Publication dateJun 20, 1950
Filing dateApr 5, 1948
Priority dateApr 5, 1948
Publication numberUS 2512499 A, US 2512499A, US-A-2512499, US2512499 A, US2512499A
InventorsLoosen Donald G
Original AssigneeLoosen Donald G
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Vibrating applicator
US 2512499 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

June 1950 D. G. LOOSEN VIBRATING APPLICATOR Filed April 5, 1948 Mil EN TOR. flan 410 a. [005m BY Patented June 20, 1950 UNITED STATES PATENT OFFICE VIBRATING APPLICATOR Donald G. Loosen, Los Angeles, Calif.

Application April 5, 1948, Serial No. 19,100

2 Claims.

My invention relates to a hand held device provided With means for receiving and clamping a variety of instruments such as massaging tools or an ordinary safety razor, and provided with electrical operating means imparting an oscillatory movement to the head of the tool such as a safety razor clamped in the device.

A wide variety of facial and other massage tools are in use which require the tool to be rapidly moved over the surface of the skin, as for instance rubber pads with projecting fingers which are used to stimulate blood circulation in the scalp, or small pads used to work facial cream into the skin of the face and to tone up the skin, or'safety razors. The manipulation of such applicators involves considerable effort if properly carried out and it is the general object of my invention to provide a device to which a variety of tools of the kind referred to may be attached and which merely requires to be pressed against and guided over the skin, the tool being activated by the electrical mechanism arranged in the device.

An object of my invention is to provide an applicator device adaptable to a wide variety of purposes by the use of tools usually used manually as well as those designed for machine operation, yet of simple andsturdy construction. Another object of my invention is to provide an applicator device providing a greater amplitude of the applicator tool than has previously been attained. V

A preferred embodiment of my invention is shown in the accompanying drawings but it is to be understood that various changes in and modification of parts may be made by those skilled in the art without departing from the scope of the invention as intended to be defined by the appended claims.

In the drawings:

Fig. 1 is a perspective view of the device of my invention showing a widely used form of safety razor mounted therein;

Fig. 2 is a vertical longitudinal section through the device shown in Fig. 1;

Fig. 3 is a cross section taken on the line 33 of Fig. 2;

Fig. 4 is a side elevation with a part in section showing a facial massage tool mounted in the handle;

Fig. 5 is a schematic wiring diagram showing the arrangement of electrical elements adapting the device to either A. C. or D. C. current; and

Fig. 6 is a perspective view of a clutch Jaw member.

In the drawings, the numeral I0 indicates the main section of the body of the device which may be molded from plastic material, and is preferably formed by two sections I 2a and l2b secured together by screws M to form a case considerably wider in one direction than the other and of a length such that it may be comfortably held in the hand.

Preferably but not necessarily one end of the body is closed by a plug l6 of resilient and insulating material secured in place by a flange l8 fitting in an annular groove 20 formed in the two halves of the body. The opposite end of the body is provided with a relatively large bore 24.

A tubular tool mounting 28 is arranged in the forward end of the handle and is supported therein by a heavy ring 30 of resilient material fitting tightly on the tubular mount 28. A pair of pins 32 are set in the tubular mount 28 and extend into bores 34 drilled at diametrically opposite points into the wall of the bore perpendicular to the plane of oscillation of the tubular member. The pins 32 serve to hold the tubular member in position in the body I0 and also act as trunnion bearings therefor.

The forward end of tubular mount 28 is threaded and a knurled round nut 36 is screwed onto the threaded portion and acts to tighten jaws 38 arranged within the tubular mount and retained therein in any suitable manner. In the form of the invention illustrated the jaws are formed by slotting one end of a tube 40 fitting easily in tubular member 28, and providing tapered shoulders at the forward ends of the jaws by bending up the edges. Th end of the tube is closed by an end plug 42 fitting in the inner end of the tubular mount. The tapered forward ends of the jaws are engaged by a tapered inner surface on nut 36 in the usual manner.

The tubular mount is oscillated about its trunnion bearing pins 32 by an electromagnetic operating element 44 of any suitable kind. As shown in the drawings the operating element comprises pole pieces 46 and winding 48 with an armature 50 free to vibrate on a fiat spring mount 52 acting to normally hold the armature spaced from the poles. A bracket 50a is riveted at one end to armature 50 and at the other end to plug 42. Electric leads 54a, 54b are led through plug l6, which forms a watertight seal around them and one lead 55a is connected to a. terminal 55 of the winding 48. In order to adapt the device to use with either A. C. or D. C. current, I provide a make and break or vibrator contact 58 operated by movement of the armature 50. The contact comprises a fixed element Gilmounted on the body I and a movable element 62 mounted on the armature 50 but insulated therefrom by a block of material 65. A lead 66 connects fixed contact element 60 to the other end of windin 48. Lead 54b is connected to the movable contact element 62. It will be evident that as armature is attracted toward the pole pieces of the electromagnet the circuit of the electromagnet is broken and the armature will spring away from the pole pieces thus again completing the electric circuit through winding 48 again attracting the armature and again breaking the circuit. The vibrating movement of the armature 50 is .transmitted to the tool mount 28 by the bracket 5011. In order to prevent radio interference caused by sparking at the contact points 58a, a small capacitor'fita is connected across the contact points in parallel with leads 54a, 54b by leads:-;-68. Preferably a switch Vii-,isprovided: on, the body I 0 by whichthedevicemay be switchedzon and oif. A suitable formis shown in; Fig. 2 consisting of axsmallpermanent magnet: mounted to slide on the outer surface of theibody and-cooperating with apiece of softiron "lflmfastened to" the upper. arm of the contact. When .the magnet H! is slid into position over ltd-the latter will be attracted andthe contacts IEBaheld: open but when magnet is :slid out of this. position the contacts are free-to function normally. No opening'in the body is required by the described switch construction.

Operation When it is desired to use-the device a tool having. a stem or handle 12 such as a razor or applicator for facialcream is inserted in thetool mount 28-and clamped therein byascrewing up nut 36 to'tighten the jaws against'the handle 12. The device may thenbe brought into" operation by switching on theelectric current-whereupon the head' ofthe tool will be oscillated with great rapidity about the axis of the .pins32. ,If asafety razor of the usual elongated head'type-is to be used'the razor is clamped with its head extending in line with the wide face of the device resulting in a rapid oscillation of the cutting'edgein the direction of its length whichvwhen the razor is moved across the :skin in a line perpendicular to the cutting edge results in the-oblique cutting tion adapted to be held in the hand, and having an 'opening extending through one end thereof;

an elongated tool holder adapted to securely hold a variety-of tools and extending through said opening; trunnion bearing pins extending from said elongated tool holder into bores in the wall of the'opening; and electrical means mounted in said hollow body portion and effective to oscillate the-inward end. of the-tool holder.

2. .An oscillator comprising: a hollow body portion adapted to be held in the hand, andhaving an opening extendin through one end thereof anelongated tool I holderextending through said opening; a chuck mounted on said tool holder whereby a variety of tools may be interchangeably fitted to. the outer end thereof; a pair ofprojections extending from opposite sides of saidtool holder-and fitting in bores formed :in the: wall of the opening to form trunnion-bearingsfor the tool holder; a ring of resilient material under compressionbetweenthe outer surface ofythe toolholder and the wall ofv the opening and effective to seal said opening while permit- 1 ting'oscillatory motion of the tool holder about its bearings; and electrical means mounted within'the hollow body and effective to oscillate-the inward end of'sa-id tool holder.


REFERENCES CITED The following references are of record in the file aofthis patent:


Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US649642 *Jun 27, 1898May 15, 1900Roscoe F LudwigShaft-coupling for dental-engine handpieces.
US1788547 *Apr 27, 1929Jan 13, 1931Electric Razor Corp Of AmericaVibratory safety razor
US1813630 *Jul 23, 1929Jul 7, 1931B L LairdElectromagnetic oscillator
US1958482 *Jul 28, 1932May 15, 1934Milwaukee Gas Specialty CoMagnetic switch
US2343237 *Sep 16, 1943Mar 7, 1944Kalkhuis Fred WElectric eraser
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2709227 *Feb 20, 1952May 24, 1955Davis John WElectric tooth brush
US3010036 *Oct 6, 1958Nov 21, 1961Wahl Clipper CorpArmature assembly
US3079687 *Jul 9, 1959Mar 5, 1963Sunbeam CorpHair clipper
US3157804 *Sep 12, 1961Nov 17, 1964Goodwin Mfg & Dev Company IncRazor motor and casing therefor
US3846603 *Nov 13, 1972Nov 5, 1974Oster CorpHair clipper with improved on/off switch
US5732470 *Feb 8, 1996Mar 31, 1998Good Marketing, Inc.Oscillating razor
US5933962 *Aug 26, 1997Aug 10, 1999Good Marketing, Inc.Oscillating razor
DE3635663A1 *Oct 21, 1986May 5, 1988Metronic Elektronic GmbhManual massaging device having a massaging head
U.S. Classification310/29, 335/205, 335/87, 310/68.00A, 30/45, 310/47
International ClassificationA61H23/02, B26B21/38, B26B21/08, H02K33/04, H02K33/00
Cooperative ClassificationH02K33/04, B26B21/38, A61H23/0218
European ClassificationB26B21/38, H02K33/04, A61H23/02F