US3068567A

US3068567A - Razor honing device

Info

Publication number: US3068567A
Application number: US208742A
Authority: US
Inventors: William C Pattiani
Original assignee: Individual
Current assignee: Individual
Priority date: 1962-07-10
Filing date: 1962-07-10
Publication date: 1962-12-18
Anticipated expiration: 1979-12-18

Description

Dec. 18, 1962 w. c. PATTIANI RAZOR'HONING DEVICE Filed July 10, 1962 FIE- INVENTOR. WILLIAM C. PATT/AN/ 4;, ATTORNEYS VIII/476mg United States Patent 3,068,567 RAZOR HONING DEVICE William C. Pattiani, 6225 Antioch St., Oakland 11, Calif. Filed July 10, 1962, Ser. No. 208,742 3 Claims. (Cl. 30-35) This invention relates to the sharpening of a razor blade as used in a so-called safety razor.

It is pointed out in Patent 2,562,115 that it is extremely desirable to transfer a fresh, sharp razor blade from the package or magazine in which it is packed by the manufacturer and distributed to the customer without impairing the keenness of the shaving edge of the blade by contact with the wrapper or other object. It is known that the shaving edge of a safety razor which has been brought to a high degree of keenness by the manufacturer is very fragile and its shaving qualities are seriously impaired by the slightest contact. Use of the blade in shaving results in the shaving edge being rendered uneven so that the shaving ability of the blade is substantially diminished and the blade may have to be discarded and replaced by a new one.

The present invention relates to a razor in which a blade positioned in the razor can be honed in the razor so that the shaving edges of the blade are restored to a high degree of keenness. By honing the blade in the razor in which it is to be used, no opportunity is provided for impairment of the fragile edge of the blade as when a separate honing device is employed.

These and other features of the invention will be best understood and appreciated from the following description of a razor construction enabling a blade to be honed in place in the razor.

In the drawing accompanying and forming a part hereof:

FIGURE 1 is a perspective view showing a razor in position to receive the honing device.

FIGURE 2 is a plan view showing the honing device in place.

FIGURES 3 and 4 respectively are sections taken along the lines 3-3 and 44 of FIGURE 2.

The safety razor shown is in its general construction similar to that of U. S. Letters Patent Nos. 2,009,272,

2,562,115 and 3,056,199. This razor has been chosen because it is typical of one which is quite popular and which is used extensively. The invention is not limited, however, to employment with a razor of the detailed construction shown.

Referring to the drawing, the razor includes a handle carrying a substantially fiat guard member which provides the blade seat 11 of the safety razor. Rising through a slot in the blade seat is the elongated bladelocating bar 12, this being carried by longitudinally movable spindle -13 mounted in the tubular handle 10 and having a tapering upper end shown in FIGURE 1. Bar 12 is provided at each end with an overhanging shoulder 24 giving it a hooked formation. Preferably and as herein shown the hooked formation is eifected by an indentation in the end wall of the bar 12, the upper edge or wall of the indentation being comparatively short and extending inwardly, and the lower edge or wall comparatively long and gradually inclined outwardly, thus providing a guide edge or surface for directing the blade downwardly into position on the blade support or seat. The cap of the razor comprises

sections

14 and 15 pivotally mounted on a spider 23 which is carried by and moved by the spindle 13. A nut 26 is rotatably mounted on an end of handle 10 and has a screw thread 27 engaged with a matching thread on the spindle 13 so that rotation of the nut is eifective to move the spindle axially ice of the handle 10 and so open and close the

cap sections

14 and 15.

The blade sharpening member is indicated generally at 31 and includes opposite planar blade-

engaging sections

32 and 33 joined together by central U-shaped portion 34. The ends of the

sections

32 and 33 are such that they approach the edges of a blade positioned on the bar 12 as can be seen in FIGURE 2.

To use the sharpening device, the razor is opened and the sharpening member 31 is placed on top of the blade in the razor with the U-shaped portion fitting on the bar 12 in which position it appears in FIGURE 2. The cap sections are then closed by rotating the nut 26 relative to the handle 10- to move the spindle 13 axially downwardly in the handle. This movement causes the cap sections to force the ends of the sharpening member outwardly over the cutting edges of the blade as appears in FIG- URE 4. If this movement is repeated several times, the edges of the blade will be honed and any irregularities in the blade edge will quickly disappear. The cap sections are then opened and the sharpening member removed. Upon closing of the cap sections, the razor is ready for use. If desired, the blade can be reversed by grasping opposite ends between the fingers of one hand and reversing its position and then repeating the sharpening operation.

Having thus disclosed my invention and described in detail a structure embodying the present embodiment, I claim as new and desire to secure by 'Letters Patent:

1. A device for sharpening a double edge razor blade while being supported on a holder having a guard member providing a blade-engaging face, a blade-locating bar projecting above said face for locating a blade on said blade-engaging face, opposite cap members mounted pivotally on opposite sides of said guard member and movable to engage a blade on said blade-engaging face to retain the blade in position on said bar and away from said blade to an open position to permit removal of the blade from said bar, and means for moving said cap members; the improvement comprising a honing member adapted to be mounted on said bar and having a planar portion on each side thereof in an overlying engagement with a blade on said blade-engaging face, said honing member being adapted to be brought into engagement with said blade by movement of said cap members to engage said blade to hone the shaving edges on said blade.

2. A device for sharpening a double edge razor blade while being supported in a holder having a guard member providing a blade-engaging face, a blade-locating bar projecting above said face for locating a blade on said blade-engaging face, opposite cap members mounted pivotally on opposite sides of said guard member and movable to engage a blade on said blade-engaging face to retain the blade in position on said bar and away from said blade to an open position to permit removal of the blade from said bar, and means for moving said cap members; the improvement comprising a honing member having a U-shaped section extending centrally thereof to fit on said bar and having a planar portion on each side thereof in an overlying engagement with a blade on said blade-engaging face, said honing member being adapted to be brought into engagement with said blade by movement of said cap members to engage said blade to hone the shaving edges on said blade.

3. A honing device for sharpening a double edge razor blade while the blade is supported in a holder having a guard member providing a blade-engaging face, a bladelocating bar projecting above said face for locating a blade on said blade-engaging face, opposite cap members mounted pivotally on opposite sides of said guard mem- 3 her and movable to engage a blade on said blade-engaging face to retain the blade in position on said bar and away from said blade to an open position to permit removal of the blade from said bar, a honing device comprising an elongated member in the form of an inverted V the legs of which are joined togther by a U-shaped portion adapted to extend along said bar with the outer edges of the member extending beyond and in contact with the cutting edges on said blade, said member having a flexibility such that movement of the cap members toward 4 blade-engaging position is sufiicient to flex said honing member and move it laterally across the cutting edges of the blade to hone said cutting edges, and means for moving said cap members.

Wood Aug. 8, 1916 Menken Oct. 2, 1956