US 2100234 A
Description (OCR text may contain errors)
G. A. BELKNAP MASSAGING DEVICE 7 Nov. 23, 1937.
Filed May 21, 1936 n mvw ATTORNEt-S Patented Nov. 23, 1937 PATENT OFFICE MASSAGING DEVICE Gardner A. Belknap, Conneautville, Pa.
Application May 21, 1936, Serial No. 81,116
Thisinvention relates to massaging devices and has for an object to provide a device of this character which will be extremely efllcient in subjecting the parts under treatment to the action of an electric current.
A further object is to provide a device of this character which will include a battery or coil casing of the general shape of a flashlight casing, the same having on one side thereof the massaging tool whereby the device will be portable and may be easily manipulated during treatment of the parts to be massaged.
A further object is to provide a device of this character having a massaging tool comprising an elongated casing which is provided centrally of its upper side with a projection, the projection gradually increasing in length from its upper to its lower end and having slightly convex upper end and front and rear edges whereby to adapt it to affect the massaging of the prostate gland through the vibration of the adjacent parts with which the projection contacts while the device is in use.
A further object is to provide the projection, in a device of this character, with an electrode, which may be applied direct to the parts under treatment for stimulating the tissues by action of the electric current.
With the above and other objects in view the invention consists of certain novel details of construction and combinations of parts hereinafter fully described and claimed it being understood that various modifications may be resorted to within the scope of the appended claims Without departing from the spirit or sacrificing any of the advantages of the invention.
In the accompanying drawings forming part of this specification,
Figure 1 is a longitudinal sectional view through a massaging device constructed in accordance with the invention.
Figure 2 is a cross sectional view taken on the line 2-2 of Figure 1.
Figure 3 is a detail longitudinal sectional view taken on the line 3-3 of Figure 1, with parts in elevation.
Figure e is a diagrammatic View of the electrical connections of the apparatus.
Figure 5 is an end elevation of the induction coil looking toward the vibrator.
Referring now to the drawings in which like characters of reference designate similar parts in the various views, I!) designates a tubular casing formed of insualting material and adapted to house a pair of batteries I l of the flashlight type,
and an induction coil l2 having a vibrator [3 adapted to make and break the primary circuit [4 of the coil to induce a high frequency oscillating current in the secondary l5 of the coil. A condenser I6 is connected across the armature ll 5 and the adjusting screw l8 of the vibrator to eliminate sparking.
The casing II] is provided on one side with a massaging'tool which is integral with the casing and comprises an elongated base I9 which is of hollow formation and which gradually increases in length from its upper to its lower end and has a slightly convex upper end and slightly convex front and rear edges 2! as shown in Figures 1 and 2. This specific shape of the tool adapts it most effectively to massage the prostate gland through the vibration of the adjacent parts with which the tool contacts while the device is in use.
The tool or projection I9 is provided at its upper end with an electrode 22 which is in the nature of a pin 23 having a rivet head 24 forming a continuation of the upper end of the projection. The electrode is connected to one end of the secondary winding of the induction coil l2 by means of a wire 25 as best shown in Figure 4. A wire 26 connects the other end of the secondary winding of the induction coil to a switch designated in general by the numeral 21.
The switch 2'! comprises a handle 28 having a longitudinal bore to receive the wire 26 which latter terminates in a resilient switch contact 29 that is movable toward and away from an electrode 30 by means of a push button 3|. The electrode is provided with a rivet head 32 which in use is placed upon the patient contiguous to the electrode 22 of the tool [9 so that a circuit will be closed through the body of the patient between both electrodes for stimulating activity of the tissues. For controlling the battery circuit a switch is provided including a threaded cap 33 formed of insulating material for closing one end of the casing I0, as shown in Figure 1. The cap is provided with a spring metal tongue 34 which terminally engages one pole of the terminal battery cell and is provided with a fiat portion 35 which has wiping contact with a metal ring 36 mounted in the bore of the casing 10. The ring is connected by a wire 31 to one terminal of the primary winding of the induction coil. A wire 38 connects the companion battery cell with the other terminal of the primary winding. When the cap 33 is screwed up tight the spring tongue 34 holds the battery assembled and closes the primary circuit through the induction coil. When the cap is unscrewed the spring tongue 34 is disengaged from the terminal battery cell and breaks the primary circuit at this point.
In operation, when the cap 33 is screwed up tight into the casing II] the primary circuit to the induction coil will be closed in the spring tongue switch contact 34 whereupon the coil will operate in the well known manner to generate an alternating high frequency current in the secondary winding. The tool I9 may be placed in contact with the part to be treated and the switch handle 28 may be moved to locate the electrode 32 there of against the body of the patient in close proximity to the electrode. The push button 3| may now be closed to close the secondary circuit of the induction coil, the high frequency alternating current passing through the tissues of the patient between the electrodes 24 and 32, and stimulating these tissues.
From the above description it is thought that the construction and operation of the invention will be fully understood without further explanation.
What is claimed is:
1. A massaging device comprising an elongated casing, means in the casing for supplying an oscillating current, a hollow projection interrupter therefor in the casing, a battery cell in the casing for energizing the coil, a projection of insulating material on one side of the casing graduallyincreasing in length from its upper to its lower end and having slightly convex upper end and front and rear edges, an electrode carried .by the projection and exposed exteriorly at the top of the projection, a wire connecting the electrode with one end of the secondary winding of the coil, a second electrode, a handle for the second electrode, and a wire connecting the second electrode with the other terminal of the secondary winding of the coil.
GARDNER A. BELKNAP.