Razors, razor blades and razor blade dispensers

Details Razors, razor blades and razor blade dispensers Razors, razor blades and razor blade dispensers

1981-11-25

1984-11-20

Kazenske, E. R.

Cutlery

Razors

Curved edge

30 64, 3034661, B26B 2114

Patent

active

044830688

DESCRIPTION:

BRIEF SUMMARY
This invention relates to razors, razor blades, and razor blade dispensers.
More particularly the invention relates to razors for use with razor blades which are in the form of a metal foil which has a number of holes therein, the periphery of each hole constituting a cutting edge. The invention also relates to dispensers in which replacement blades of the kind described are stored prior to use and to which used blades may be returned.
The invention will be better understood from the following description of one construction of razor, razor blade and dispenser in accordance with the invention, which will be described, by way of example only, with reference to the accompanying drawings in which:
FIG. 1 is a plan view of a razor blade in accordance with the invention,
FIG. 2 is a sectional view taken on the line II--II in FIG. 1, on an enlarged scale,
FIG. 3 is a rear perspective view of the razor,
FIG. 4 is a similar view to FIG. 3 but of the head and upper end of the handle only and on an enlarged scale, showing the razor in the shaving position,
FIG. 5 is a similar view to FIG. 4 but showing the razor in the blade changing position,
FIG. 6 is a plan view of a moulding which forms a part of the head of the razor,
FIG. 7 is a front perspective view of a part only of the moulding shown in FIG. 6,
FIG. 8 is a sectional side elevation of the head of the razor taken on the line VIII--VIII in FIG. 4 but with a sub-assembly of an operating button and the blade carrier shown separately above the rest of the head,
FIG. 9 is a plan view of the dispenser showing one used blade in the left hand end of one compartment and an unused blade in the right hand end of the other compartment,
FIG. 10 is a similar view to FIG. 9, but with the additional of the head of the razor in a position in which a left handed person, holding the dispenser in their right hand, and the razor in their left hand, has returned a used blade to the left hand end of one compartment and is in process of picking up an unused blade from the right hand end of the same compartment, and
FIG. 11 is an end elevational view of the dispenser in the direction of the arrow XI in FIG. 9.
Referring first to FIGS. 1 and 2 it will be seen that the foil blade 10 of the present embodiment is of generally rectangular form with cut-away corners 10a, and that it has five lines of holes 10b of elongated shape with rounded ends, each line consisting of eight holes 10b. The periphery region of each hole 10b is deformed out of the plane of the blade, as can be seen in FIG. 2, and the periphery is sharpened to form a cutting edge 10c, the tip of which has chord widths comparable to those of conventional razor blades. Preferably the blades 10 are of a stainless steel alloy and the holes 10b are formed by an initial pierce and form operation followed by hardening and grinding to form a rough cutting edge which is finished by an electrolytic reducing process. The facets of the cutting edges 10c are given a coating of polytetrafluoroethylene.
Referring now to FIGS. 3, 4 and 5, in particular, these show the razor which comprises a handle 11 which at its upper end has a head 12 designed to carry the blades. In use, a blade 10 is held by engagement of its two longer edges in a track formed by opposing inwardly-directed flanges 13a (FIGS. 5 and 8) of a metal carrier 13. The distance between the flanges 13a is such that the blade 10 is arched with the cutting edges 10c directed outwardly. In use, the razor will normally be moved to and fro across the skin in a direction parallel to the shorter edge of the blade. However, the blade 10 will also shave whilst being moved in any other direction across the skin, due to the fact that the complete periphery of each hole 10b is in the form of the cutting edge 10c.
The displacement of the centres of the holes 10b relative to one another in alternate lines, serves to ensure that when the blade 10 is moved across the skin in a direction parallel to its shorter edge hairs not cut because of the land between holes 10b in one row will be cut by

REFERENCES:
patent: 2342161 (1944-02-01), Muros et al.
patent: 2439909 (1948-04-01), Rusican
patent: 2686966 (1934-08-01), Landwehr
patent: 2989804 (1961-06-01), Yellon
patent: 3130609 (1964-04-01), Wahl
patent: 3494032 (1970-02-01), Welsh
patent: 3702026 (1972-11-01), Scholin
patent: 3835532 (1974-09-01), Petrillo
patent: 3900636 (1973-08-01), Curry et al.
Canadian Pat. Off. Record, vol. LXIV, No. 15, Apr. 14, 1936, pp. 715-716.

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