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Publication numberUS2488436 A
Publication typeGrant
Publication dateNov 15, 1949
Filing dateNov 23, 1948
Priority dateNov 23, 1948
Publication numberUS 2488436 A, US 2488436A, US-A-2488436, US2488436 A, US2488436A
InventorsSantoro Sr Antonio
Original AssigneeSantoro Sr Antonio
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Combination hair trimmer and razor
US 2488436 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Nov. 15, 1949 A. SANTORO, sR 2,488,436


Application November 23, 1948, Serial No. 61,696

2 Claims. (Cl. 30-30) This invention relates to tonsorial equipment and more particularly to hair cutting devices whether for use as razors or hair planers.

The principal object of the invention is to provide a novel and improved implement of the class described which is efficient in operation, com`- paratively simple in construction, requiring a minimum number of parts, and easy to assemble, manipulate, and dismantle for cleaning or sharpening.

The invention in its preferred embodiment contemplates the provision of a folding combination implement comprising a hair planer and a razor, each of such instrumentalities having a handle extending therefrom and pivotally or hingedly connected at their respective ends, whereby the instrumentalities may be folded together, one upon the other, when not in use.

One feature of novelty of the invention resides in the provision of novel locking means for securing the blades and guards to the body portions of the respective implements.

Another important feature of the invention is the provision, in the hair trimmer or planer, of a blade having a notched or serrated edge, and the clamping of such blade edge by novel means which not only attains a better angular shearing cut but serves to reinforce or back up the serrations or teeth during the cutting operation.

Other objects and features of novelty will be apparent from the following specification when read in connection with the accompanying drawings in which one embodiment of the invention is illustrated by way of example.

In the drawings:

Figure 1 is a plan view of a combination implement embodying the principles of the invention,

Figure 2 is a greatly enlarged fragmentary plan view of the hair planer portion of the device, showing the novel arrangement of blade teeth or serrations and the guard tines or projections,

Figure 3 is a transverse sectional view taken on line 3--3 of Figure 1, with the complementary portion of the implement indicated in broken lines in the position it occupies when the device is folded together,

Figure 4 is a transverse sectional view taken on line 4 4 of Figure 1,

Figure 5 is an exploded perspective view of a hair trimmer blade and one of the removable guard members; and

Figure 6 is a fragmentary transverse sectional view taken on line 6-6 of Figure 1.

The device as a whole is designated by the reference numeral I0 and will be seen to comprise two very similar instrumentalities hinged together for alternative use and for convenient disposal when not in use. The hair trimmer or planer portion'of the device is designated by the numeral II while the razor portion is denominated I2. Each of the two instrumentalities may be provided with suitable handle portions I3, the ends of which are pivotally connected as at I5. Any suitable riveted or bolted hinge joint may be provided at this point, a. most suitable one being a spring joint by means of which the two implements would be urged together when in closed position as Suggested in Figure 3.

The body portion of each of the instrumentalities II and l2 are very similar in construction, each comprising a substantially rectangular plate of arched cross section, these plate-like body members being designated I'I in the case of the razor part I2 and I6 in the case of the hair planer II. The arched or concavo-convex cross-sectional conflguration of the members is clearly shown in Figures 3 and 4.

Along both longitudinal' margins of the body portions I6 and II'there'are provided a number of tines, projections, or teeth I8 separated by the gaps or spaces I9.

Now referring more particularly to the lower right hand portion of Figure 1 and to Figure 4 of the drawings, it will be seen that the razor portion I2 of the device is further provided with a. somewhat curved or arched guard or clamping member 20 which has a straight rectilinear edge along both lateral margins as indicated at 2|. The guard plate or clamp 20 serves to iirmly grip the razor blade 22 between its concave inner face and the convex face of the body member I1, the cutting edges 24 of the razor blade extending across the gaps I9 between the teeth I8 of the body plate I1 in the conventional way.

The clamping guard member 20 is provided centrally thereof upon its concave side with a post 25 which may be secured in any suitable manner as by a forced fit within an opening in the member20, by Welding, or by means of the threaded stud connection 26. The periphery of the post 25 near its outer end is provided with a groove 21 which rotatably receives the margins of acentral opening in the swivelled locking bar 28. Conveniently, this connection may be made by forming an attenuated end upon post 25 which will readily t within theopening in the bar 28 and then heading or peening over the end of the post 25.

Both the razor blade 22 and the frame member I1 are provided centrally with a longitudinally of 90 tothe transverse position indicated in the Figures 1 and 4; The pressure of the curved ends 29 of the bar 28 against the concave undersurface of the frame member I1 ofthe razor I2 will serve to draw the guard member into iirm clamping relationship with the blade, and bend the normally fiat blade into a curved configuration conforming to the surface of a cylinder of great radius.

Forv the purpose of, properly positioning the blade and clamp upon the frame I1, guide pins or studs 30 are provided on the convex side ofthe frame plate I1. These-pins pass through openings in the razor blade 22 and may be received in openings or recesses in the inner face of the guard member 20.

.The fastening 'means for the hair trimmer or planer blade 36 is very similar to the means which f has just been described in connection with the razor I2 and the same reference numerals will be 'applied to many of these parts. .The clamping guard corresponding to the guard 20 of the razor, is designated and is provided with the post'25 having the swivelled locking barv 28 thereon, which passes through the opening 4I) in theblade 36 andthence through the similar opening 42 in the frame I6, whereupon it is swung to a transverse position and clamping pressure applied to the blade.` The positioning studs 30 carried by the frame member I6 pass throughthe small, preferably oiset, openings in the blade 36 and thence through openings 48 in the guard member 20. This positioning or centering feature will be clearly understood by inspection of Figures 1, 5, and 6.

When the two instruments are swung around the pivot I5 to parallel positions they appear as the individual cutting teeth of the blade and keep them firmly in position with'relation to the tines I8, thus insuring close contact at the angles or notches 55, and preventing pinching or pulling of the hair.

' Various changes and modifications may be made in the embodiments illustrated and described herein without` departing from the scope of the invention as defined by the following claims.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. A tonsorial implement of the class described comprising, in combination, a pair of clamping guard plate's, each of said plates being relatively iiat, substantially rectangular, segmental section of cylinders of large radius, the plates being slightly concavo-convex in transverse section, at least one of said plates having guard teeth along at least one edge thereof, a cutting .blade interposed between said plates and having a cutting edge disposed adjacent the teeth on said plate, a stud on one of said plates having a locking bar mounted on the end thereof for swivelling movement in a plane substantially parallelwith the general approximate planes of said plates, elongated registering openings'in said blade and the other of said plates through which said stud and 'said lbar may be passed when the stud is in one position, said bar adapted to be swung through suggested in Figure 3, and the folded device may be conveniently laid away or disposed in a suitable receptacle until ready for use.

One of the most important features of the invention relates to the configuration and arrangement of the hair trimmer bladeA 36, and this will now be' described with particular reference to Figures 1 and 2 of the drawings. The blade 36 has its two edges provided with serrations orteeth such as shown at 50, these serrations preferably being rounded at theirouter edges as at 5I and .merging to form V-shaped notches 52 between each of the teeth or serrations. The blade teeth 50 are staggered with relation tothe teeth or tines Iii of the base plate I6, the arcuate cutting edges 5I of the teeth extending across the gaps I9 between the tines I8 this arcuate cutting edge making an arcuate angle, as at 55, with the edges of the guard teeth I8, this provision affording a shearing arrangement whereby the strands of hair which are not cut by the intermediate portion 5I of the teeth will be cut when they are wedged into the angles or notches 55.

` Unlike the razor guard member 20, the guard or clamp 35 for the hair trimmer I I is provided along both its longitudinal edges with the serrations or teeth 51, which coincide with the teeth 50 of the cutting blade 36, but are set back slightly from the edges of the teeth as clearly indicated in Figure 2. Thus the guard teeth 51 serve to reinforce an angle of substantially exerting increasing clamping pressure upon the blade as the ends of` the bar move along the curved outer concave sur. face of said other plate to a iinal chordwise position.

2. A-t0nsoria1 implement of the class described comprising, in combination, a pair of clampingguard plates, one of said plates having guard teeth along at least one edge thereof, a cutting blade interposed between said plates and having a cutting edge disposed adjacent the teeth on said plate, and means for causing said plates to exert clampingpressure upon said blade, the cutting edge of the blade being provided with arcuate teeth, said teeth alternating with the teeth of the first guard plate, and the side edges of said respective adjacent teeth of the blade and guard platel converging to provide a substantially V- shaped notch, .wherein hair may be cut by a.

shearing action, said guard plate teeth projectingv outwardly beyond the teeth of said blade, the other of said plates also being provided with teeth along its edge adjacent the cutting edge of the blade, the last named teeth being staggered with respect to the teeth of the iirst named plate but registering with the teeth of said blade and bearing respectively against the blade teeth to apply clamping pressure close to the cutting edges thereof.


REFERENCES CITED The following references are of record in the le of `this patent:

UNITED STATES PATENTS Number Name Date 1,823,808 Thompson Sept. 15, 1931 2,043,998 Hadjopoulos June 16, 1936 2,211,200 Dodge Aug. 13, 1940

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1823808 *Nov 17, 1930Sep 15, 1931Gillette Safety Razor CoSafety razor
US2043998 *Mar 28, 1933Jun 16, 1936Hadjopoulos Demosthenes BSafety razor and razor blade
US2211200 *Jul 5, 1938Aug 13, 1940Dodge Verne OSafety razor
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2596079 *Aug 23, 1950May 6, 1952Swift & CoSkinning knife
US2972187 *Dec 23, 1957Feb 21, 1961Gore Thomas JDevice for thinning hair
US3165831 *Mar 4, 1963Jan 19, 1965Carrol Dorothy AMultiple comb and blade hair trimming device
US3180026 *Aug 21, 1963Apr 27, 1965John D AmicoHair thinner attachment having certain teeth spaced from the cutting edge of a blade
US4354312 *Oct 6, 1980Oct 19, 1982The Gillette CompanyShaving implement, housing therefor, and razor
US4614032 *Jun 27, 1983Sep 30, 1986Szabo Stephan LHair-cutting apparatus and razor
US4769913 *Dec 18, 1986Sep 13, 1988Shigeaki KuramochiFuzz remover
US5568688 *Jun 7, 1995Oct 29, 1996Andrews; Edward A.Hair shaving device with curved razor blade strip
US5983499 *Oct 28, 1996Nov 16, 1999Andrews; Edward A.Cavity shaving device with curved razor blade strip
US6505403Oct 28, 1997Jan 14, 2003Edward A. AndrewsHair shaving device with u-shaped razor blade strip
US7536787Jul 6, 2004May 26, 2009Ridgewood Industries LlcWet razor and electric trimmer assembly
US7761998Mar 9, 2009Jul 27, 2010Ridgewood Industries LlcWet razor and electric trimmer assembly
US8474142Mar 21, 2012Jul 2, 2013Eveready Battery Company, Inc.Wet razor and electric trimmer assembly
US8739411 *Sep 22, 2008Jun 3, 2014Matt DryfhoutBack hair removal using comb and integrated blade
US9375855May 15, 2013Jun 28, 2016Edgewell Personal Care Brands, LlcWet razor and electric trimmer assembly
US9381655 *Jul 16, 2013Jul 5, 2016Specialife (Zhuhai) Co., Ltd.Double-blade hair trimming device
US20060169120 *Jan 30, 2006Aug 3, 2006Donald SmithSerrated utility knife blade
US20100071214 *Sep 22, 2008Mar 25, 2010Iain KinghornBack hair removal using comb and integrated blade
US20130126575 *Apr 18, 2011May 23, 2013Benoit MalletBlade for cutting a piece of plasterboard, method for implementing said blade, and use thereof
US20140026422 *Jul 16, 2013Jan 30, 2014Tung Yan LauDouble-blade hair trimming device
US20160059428 *Nov 6, 2015Mar 3, 2016Tung Yan LauDouble-blade hair trimming device
WO1985002809A1 *Dec 18, 1984Jul 4, 1985The Gillette CompanyRazor blades
U.S. Classification30/30, D28/52, 30/346.61, 30/346.56, 30/55, 30/84, 30/53
International ClassificationB26B21/12, B26B21/08
Cooperative ClassificationB26B21/12
European ClassificationB26B21/12