CA1045365A - Double edge blade safety razor - Google Patents
Double edge blade safety razorInfo
- Publication number
- CA1045365A CA1045365A CA292,399A CA292399A CA1045365A CA 1045365 A CA1045365 A CA 1045365A CA 292399 A CA292399 A CA 292399A CA 1045365 A CA1045365 A CA 1045365A
- Authority
- CA
- Canada
- Prior art keywords
- razor
- blade
- safety
- razor blade
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/54—Razor-blades
- B26B21/56—Razor-blades characterised by the shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
- B26B21/14—Safety razors with one or more blades arranged transversely to the handle
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Shavers And Clippers (AREA)
Abstract
Abstract of the disclosure.
This safety razor, mainly, consists of a handle mem-ber shaped like an arc of a parabola, which acts, at one end, as the griping portion of the said safety razor.
Within the surface of the other end, a longitudinal base channel acts as fastening member of the handle member.
The exterior plate, assembled to the interior plate with the razor blade in between and in a flat position, is connected to the longitudinal base channel of the handle mem-ber by means of its fastening members.
The alternative use of both edges of the old fashion razor blade has been eliminated: the use of the traditional double edge razor blade is limited, always and only, to the use of one edge of the razor blade at a time, and, besides that, the blade edge makes an angle with the plane normal to the direction in which the safety razor is flowing.
The razor blade flows parallel to the face surface:
in this way the cut of the beard is done by the safety ra-zor's blade at a 90° angle with the beard.
This safety razor, mainly, consists of a handle mem-ber shaped like an arc of a parabola, which acts, at one end, as the griping portion of the said safety razor.
Within the surface of the other end, a longitudinal base channel acts as fastening member of the handle member.
The exterior plate, assembled to the interior plate with the razor blade in between and in a flat position, is connected to the longitudinal base channel of the handle mem-ber by means of its fastening members.
The alternative use of both edges of the old fashion razor blade has been eliminated: the use of the traditional double edge razor blade is limited, always and only, to the use of one edge of the razor blade at a time, and, besides that, the blade edge makes an angle with the plane normal to the direction in which the safety razor is flowing.
The razor blade flows parallel to the face surface:
in this way the cut of the beard is done by the safety ra-zor's blade at a 90° angle with the beard.
Description
rief description of the drawings.
~he present invention relates -to the wet shaving systems and more particularly to a shaving implement of the type that has a grip portion and a head portion that carries one or more b]ade elements. -Said invention will~ now~ be described merely by illustrations along with reference to the accompanying draw- ~
ings~ in which 8 .,~:
Figure 1 is a side view of the face's shave7 executed by an old fashion double edge blade safety razor.
The arrow shows the direction in which the safety j-razor is flowingO ;;~
Detail A is an enlargement of the above Figure 1 which empha-sized the small cutting angle of the razor blade with the beard and the wrong position of the razor blade with respect to the direction in which the safety razor flows. The arrow shows the direction in which the safety razor is flowing.
~igure 2 is a side view of the face's shave~ executed by the safety razor~ relative to the present invention.
~he drawing shows~ clearly~ the safety razor func-tionality. ~he arrow shows the direction in which the safety razor ~lows.
Detail B is an enlargement o~ the safety razor with the sur-face of the face of Figure 2~ in which is emphasized the rationality of the beard's cu-t and how the safety razor's blade flows easily and smoothly on the sur- ~ :
face of the face~ with respect to the direction in which the safety razor flows. The arrow shows the direction in which the safety razor is flowing.
~igure 3 is a side view of the safety razor relative to the present invention.
Detail D are enlargements~ where :
Drawing A is a side view of the exterior plate as-sembled to the interior plate with the razor blade ~, ''-, .
1- ~L
,~ ' `'':
in between and in a flat position.
~he drawing shows the fastening members emerging from the bottom of the interior plate;
Drawin~ ~ is a side view of both plates with the raæor blade in betvreen and in a flat position as- ;
sembled to the longitudinal base slot of the handle :~
member.
Figure 4 is a front view of the safety razor, in which is emphasized the angle between the blade's edge and the normal to the direction in which the safety -razor flows. The arrow shows the direction in whioh the safety razor is ~lowing.
Figure 5 shows the eYterior plate of said safety razor~ where.
Exterior Plan is the plan of its outer surface;
Interior Plan is the plan of its inner surface where are placed the reference mark members (male) to locate the interior plate, and the fastening members (male) which are to be connected to the ~ -longitudinal base slot of the handle member;
Fron shows the reference mark members (male) and the fastening members (male); -Side View shows the reference mark member (male) ;
.
and the fastening member (male).
Figure 6 shows the interior plate of said safe-ty razor, where:
Interior Plan is the plan of its inner surfaoe with the reference mark members (male) to locate the razor blade in a flat position and the reference mark ~ ~
member (female) to locate the exterior plate; ~ -Side View shows the reference mark members (male) to locate the razor blade in a flat position.
Figure 7 are enlargements~ where :
. .
Exterior Plan is the plan of the rectangular base, -with the longitudinal slot, of the handle member's top extremity;
Section A-A is the transversal section of the above
~he present invention relates -to the wet shaving systems and more particularly to a shaving implement of the type that has a grip portion and a head portion that carries one or more b]ade elements. -Said invention will~ now~ be described merely by illustrations along with reference to the accompanying draw- ~
ings~ in which 8 .,~:
Figure 1 is a side view of the face's shave7 executed by an old fashion double edge blade safety razor.
The arrow shows the direction in which the safety j-razor is flowingO ;;~
Detail A is an enlargement of the above Figure 1 which empha-sized the small cutting angle of the razor blade with the beard and the wrong position of the razor blade with respect to the direction in which the safety razor flows. The arrow shows the direction in which the safety razor is flowing.
~igure 2 is a side view of the face's shave~ executed by the safety razor~ relative to the present invention.
~he drawing shows~ clearly~ the safety razor func-tionality. ~he arrow shows the direction in which the safety razor ~lows.
Detail B is an enlargement o~ the safety razor with the sur-face of the face of Figure 2~ in which is emphasized the rationality of the beard's cu-t and how the safety razor's blade flows easily and smoothly on the sur- ~ :
face of the face~ with respect to the direction in which the safety razor flows. The arrow shows the direction in which the safety razor is flowing.
~igure 3 is a side view of the safety razor relative to the present invention.
Detail D are enlargements~ where :
Drawing A is a side view of the exterior plate as-sembled to the interior plate with the razor blade ~, ''-, .
1- ~L
,~ ' `'':
in between and in a flat position.
~he drawing shows the fastening members emerging from the bottom of the interior plate;
Drawin~ ~ is a side view of both plates with the raæor blade in betvreen and in a flat position as- ;
sembled to the longitudinal base slot of the handle :~
member.
Figure 4 is a front view of the safety razor, in which is emphasized the angle between the blade's edge and the normal to the direction in which the safety -razor flows. The arrow shows the direction in whioh the safety razor is ~lowing.
Figure 5 shows the eYterior plate of said safety razor~ where.
Exterior Plan is the plan of its outer surface;
Interior Plan is the plan of its inner surface where are placed the reference mark members (male) to locate the interior plate, and the fastening members (male) which are to be connected to the ~ -longitudinal base slot of the handle member;
Fron shows the reference mark members (male) and the fastening members (male); -Side View shows the reference mark member (male) ;
.
and the fastening member (male).
Figure 6 shows the interior plate of said safe-ty razor, where:
Interior Plan is the plan of its inner surfaoe with the reference mark members (male) to locate the razor blade in a flat position and the reference mark ~ ~
member (female) to locate the exterior plate; ~ -Side View shows the reference mark members (male) to locate the razor blade in a flat position.
Figure 7 are enlargements~ where :
. .
Exterior Plan is the plan of the rectangular base, -with the longitudinal slot, of the handle member's top extremity;
Section A-A is the transversal section of the above
- 2 - ;
plan; .`;
S0ction ~-B is the lo-ngi-tudinal section of the above plan.
ack~round of the invention.
~he present invention concerns the safety razors9 more `~
precisely~ a new type of safety ra~or, whose revolutionary design modifies and improves~ almos-t perfectly~ the cutting of the beard~ with respect to the traditional safe-ty razors9 and~ consequently~ allows for the best utilization of the razor blade (up -to and over two hundred fiPty shaves per blade) with the complete elimina-tion of the skin irritation.
Various types of safety razors have been proposed IA ' ' commercially in the past fifty years, but~ up to now9 none of these has confronted nor resolved~ completely9 the prob-lem of -the perfect shave without skin irritation and allow-ing the ma~imum possible use of the same blade. -~he attempt wa~always~ to turn the problem around:
in fact there has been a cons-tant improvemenb of the alloy steel of the raæor blades, as well as new hot and cold manufacturing processes.
Recently, a brand new twin blade razor has been created and the extensive use of teflon coated blades has been popularized.
Undoubtedly~ it has achieved excellent results~ but~ ;`
even S07 it has never faced or resolved the old fashion system of shaving~ which is the most illogical and irrational sy~tem thab could exis-t, nevertheless~ it has been accepted world wide by many generations, to the best advantage, naturally, ;
of the razor blade's manufacturers.
The main object of the present invention is to pre-sent a new and revolutionary safety razor with completely new characteristics of the shave~ in which all the defects of ~ -today's safety razors have been reduced or completely elimi-nated~ including~ mainly, the irrational cutting of the beard7 which is accompanied by the irritation of the skin, more or -.. : .:
plan; .`;
S0ction ~-B is the lo-ngi-tudinal section of the above plan.
ack~round of the invention.
~he present invention concerns the safety razors9 more `~
precisely~ a new type of safety ra~or, whose revolutionary design modifies and improves~ almos-t perfectly~ the cutting of the beard~ with respect to the traditional safe-ty razors9 and~ consequently~ allows for the best utilization of the razor blade (up -to and over two hundred fiPty shaves per blade) with the complete elimina-tion of the skin irritation.
Various types of safety razors have been proposed IA ' ' commercially in the past fifty years, but~ up to now9 none of these has confronted nor resolved~ completely9 the prob-lem of -the perfect shave without skin irritation and allow-ing the ma~imum possible use of the same blade. -~he attempt wa~always~ to turn the problem around:
in fact there has been a cons-tant improvemenb of the alloy steel of the raæor blades, as well as new hot and cold manufacturing processes.
Recently, a brand new twin blade razor has been created and the extensive use of teflon coated blades has been popularized.
Undoubtedly~ it has achieved excellent results~ but~ ;`
even S07 it has never faced or resolved the old fashion system of shaving~ which is the most illogical and irrational sy~tem thab could exis-t, nevertheless~ it has been accepted world wide by many generations, to the best advantage, naturally, ;
of the razor blade's manufacturers.
The main object of the present invention is to pre-sent a new and revolutionary safety razor with completely new characteristics of the shave~ in which all the defects of ~ -today's safety razors have been reduced or completely elimi-nated~ including~ mainly, the irrational cutting of the beard7 which is accompanied by the irritation of the skin, more or -.. : .:
- 3 -.: .
., 65i less pronounced.
In ~act, this safety razor, in accordance with the present invention~ is disting~ishable from similar safety razors~ presently on the market~ by :
1) the shaving of the beard is done by the safety razor's blade plaoed at a 90 angle Nith the beard;
2) the alternative use of both edges of the razor blade has been eliminated~ according to the safety razor's revolutionary shape. ~he use of the double edge razor blade, in this safety razor7 is limited always and only to the use of one edge of the razor blade at a time In fact~ in the old fashion safety razors~ presently on the market~ the cutting of the beard is done in an irra-tional manner~ due to the blade being placed in the worst conditions: a small cutting angle between the razor blade and the beard~ and wrong position of the razor blade with respec-t to the direction in which the razor is flowing.
~ecently~ it has been attempted to increase the cutting ;~
angle by bending the blade as much as possible between the two plates of the razor: in such cases~ the blade of the safety razor la¢erates and tears the hairs of the beard~ bu-t~ mainly~
quickly sel-f-des-troys the edge of the blade.
As a result of this cut, the user gets a more or less pronounced irritation of the facial skin. -~
The new safety razor, in accordance with the present invention~ is distinguishable among the number of the safety razors~ presently on the market~ from its exterior plate~ very thin~ that flows parallel to the face surface: thus the safety ra~or's blade works at its best by cutting the beard at a 90 angle~ As the blade of this safety razor is inclined like the !~ I ., blade oP the guillotine~ the for¢e required to cut the hairs of the beard is reduced to a minimurn~ therefore the cut is clean and precise without any irritation of the facial skin.
~he blade of this safety razor~ cutting under better conditions~ last~ much longer and is able to shave up to and
., 65i less pronounced.
In ~act, this safety razor, in accordance with the present invention~ is disting~ishable from similar safety razors~ presently on the market~ by :
1) the shaving of the beard is done by the safety razor's blade plaoed at a 90 angle Nith the beard;
2) the alternative use of both edges of the razor blade has been eliminated~ according to the safety razor's revolutionary shape. ~he use of the double edge razor blade, in this safety razor7 is limited always and only to the use of one edge of the razor blade at a time In fact~ in the old fashion safety razors~ presently on the market~ the cutting of the beard is done in an irra-tional manner~ due to the blade being placed in the worst conditions: a small cutting angle between the razor blade and the beard~ and wrong position of the razor blade with respec-t to the direction in which the razor is flowing.
~ecently~ it has been attempted to increase the cutting ;~
angle by bending the blade as much as possible between the two plates of the razor: in such cases~ the blade of the safety razor la¢erates and tears the hairs of the beard~ bu-t~ mainly~
quickly sel-f-des-troys the edge of the blade.
As a result of this cut, the user gets a more or less pronounced irritation of the facial skin. -~
The new safety razor, in accordance with the present invention~ is distinguishable among the number of the safety razors~ presently on the market~ from its exterior plate~ very thin~ that flows parallel to the face surface: thus the safety ra~or's blade works at its best by cutting the beard at a 90 angle~ As the blade of this safety razor is inclined like the !~ I ., blade oP the guillotine~ the for¢e required to cut the hairs of the beard is reduced to a minimurn~ therefore the cut is clean and precise without any irritation of the facial skin.
~he blade of this safety razor~ cutting under better conditions~ last~ much longer and is able to shave up to and
- 4 -.:
A `~
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3~
over two hundred fif-ty beards per traditional old fashion double edge razor blade.
It v~ also~ be underætood that the USG of the double edge raæor blade in this brand new safety razor~ in ;
accordance with its revolutionary shape~ is limited always and only to the use of one edge of the razor blade at a time~
~ he above mentioned reasons have demonstrated why the present invention differs from the other ones on the market and~ also~ the utility of this invention.
The described safety razor is composed exclusively `
of three parts~ plus~ of course~ the regular old fashion double edge razor blade~ which has been on the market for over half a century.
Summary of the invention. -:i;, :, ~roadly~ this safety razor, in accordance with the present invention~ consists of a handle member shaped like an arc of a circle or an arc of a parabola~ having~ at one ~ -end~ -the griping portion of the said safety ra~or. ~;
Within the sur-face of the other end, a longitudinal base slot acts as the fastening member (female) of the handle member and it is to be connected to the fastening members (male) of the exterior plate.
The exterior plate9 assembled to the interior plate -with the razor blade in between and in a flat position~ is connected to the fastening member of the longitudinal base slot o-f the handle member by means of its two fastening mem- ~;
bers (male).
~he al-ternative use of both edges of the old fashion razor blade has been eliminated: the use of the traditional double edge razor blade is limited~ always and only, to the `~
use of one edge of the razor blade at a time~ and~ besides ~`
that~ the blade edge makes an angle with the plane normal to the direction in which the safety razor is flowing.
The razor blade flows parallel to the face surface~
in this way the cu-t of the beard is done by the safety razor's .' " ". '
A `~
, - ,, ~, . ~, . i , , - .` .. ..
,. . .,.. ~. ,.. .... .. ,. . , . .;, . . . ., .. ~., .. ... . .. . .
3~
over two hundred fif-ty beards per traditional old fashion double edge razor blade.
It v~ also~ be underætood that the USG of the double edge raæor blade in this brand new safety razor~ in ;
accordance with its revolutionary shape~ is limited always and only to the use of one edge of the razor blade at a time~
~ he above mentioned reasons have demonstrated why the present invention differs from the other ones on the market and~ also~ the utility of this invention.
The described safety razor is composed exclusively `
of three parts~ plus~ of course~ the regular old fashion double edge razor blade~ which has been on the market for over half a century.
Summary of the invention. -:i;, :, ~roadly~ this safety razor, in accordance with the present invention~ consists of a handle member shaped like an arc of a circle or an arc of a parabola~ having~ at one ~ -end~ -the griping portion of the said safety ra~or. ~;
Within the sur-face of the other end, a longitudinal base slot acts as the fastening member (female) of the handle member and it is to be connected to the fastening members (male) of the exterior plate.
The exterior plate9 assembled to the interior plate -with the razor blade in between and in a flat position~ is connected to the fastening member of the longitudinal base slot o-f the handle member by means of its two fastening mem- ~;
bers (male).
~he al-ternative use of both edges of the old fashion razor blade has been eliminated: the use of the traditional double edge razor blade is limited~ always and only, to the `~
use of one edge of the razor blade at a time~ and~ besides ~`
that~ the blade edge makes an angle with the plane normal to the direction in which the safety razor is flowing.
The razor blade flows parallel to the face surface~
in this way the cu-t of the beard is done by the safety razor's .' " ". '
- 5 ~ ~ ~
blade at a 90 angle with the beard.
Other objectsg features and advantages of the pres-en-t invention will become apparent as the description herein proceeds.
Description of the preferred embodiment.
In the accompanying drawin~s, Fig. 3 and ~ig. 4 il-lustrate the preferred embodiment of said safet~ razor, in accordance with the present invention.
In fact, the parts that compose this safet~ ra~or are only threeg plus~ of course, the regular old fashion double edge razor blade on the market for over half a century.
'rhese parts, more specificallyg are ~
a) one interior plate~ as illustrated in Figo 6 and indicated at 15 Said interior plate 15 has three raised portions of its inner surface, which act as reference marks 30 (male) to lo cabe, among them, the ra~or blade in a flat position.
The three raised portions 30 (male) of this inner sur-face equal the raæor blade's thickness.
In the middle of said inner surface there is~ also~
one longitudinal slot with two holes at its extremities, which acts as reference mark 18 (female) to be connected to the exterior plate's 16 corresponding raised members 17 and l9s (male) of ~ig. 5. A longitudinal slo-t 25, loca-ted at the lower part of -this inner surface, serves to dispose of the cut beard, and the bottom edge 27 of this interior pla-te 15 acts as the -face's safety guard;
b) one exterior plate~ as illustrated in Fig. 5 and indicated at 16. Said exterior plate 16 has~ in the middle of its inner flat surface~ three longitudinal raised male members, indicated at 17 and l9æ. ~hese three raised male members, 17 and l9s, act as reference marks that are to be connected to the interior plate's corresponding slot member 18 (female) of ~ig. 6~ which has two holes at ibs extremities. The Drawing A of Detail D is a side ~iew of the exterior plate 16 assembled to -the interior plate 15 with -the raYor blade 28 in be-tween and in a flat po- `
sitionO It should be noticed -that the two raised reference mark members 19s (male) are emerging from the bottom of the interior plate 15: they are~ alsoa acting as fastening mem-bers l9s (male). ~hey are to be connected to the handle's corresponding longitudinal base slot member 20 (female) of Fig. 7. It should be pointed out that the top edge 26 of said -exterior plate 16~ as illustrated on Drawing A of Detail D
is always used -to remove the shaving cream from any crucial spots of the face to be shaved;
c) one square section handle member7 as illustrated in Fig 3 and indicated al 10. Said square section handle member 10~ `~
shaped like an arc of a parabola~ acts9 at one endg as the griping portion 11 of this safety razor.
~he square section of this handle member 10 reduces its section size proportionately from the bottom of the griping portion 11 as it approaches the top end. ~ear this top end of the said arc of parabola~ the square section handle me~ber 10 becomes shaped as a truncated pyramid 12, as illustrated in Fig. 3~ with the ou-twardly faced rectangular base, as illus-trated in details in Fig. 7~ and indicated at 14.
In this rectangular base~ a longitudinal slot 20 has ~-two opposed ribs 13~ located in its two inner side top portions of the divided rectangular base 1~ 9 that form~ more specifically~
a channel~ as illustrated in Fig. 7.
~his channel or slot~ as previousl~ described~ extends longitudinally within said rectangular base 14 and is adapted to receive the runner fastening members l9s (male) of the e~terior plate 16 assembled to the interior plate 15 with the razor blade 28 in between and in a flat position~ as illustrated in the Drawings A and ~ of the Detail D.
~he upper portions of the said fastening members l9s~
as illustrated in the Drawings A and B of the Detail D~ are de-signed in compliance with the above two rib inner shape that form -the said channel~ within which they are to be connected.
~wo fastening members (male)~ indicated at 2~ of '~ ' ``' 3i6~i ~ig. 7~ located on the inner sur-fac2 side of the lon~itudinal base ohannel 20, are to be connected to the corresponding fast- ;
ening members 9s (female) of the exterior plate 16 of ~ig 5~
to prevent any longitudinal movement of the assembled plates 15 and 16~ as in the Drawing A of the Detail D~ relative to the longitudinal base channel 20 of Figo 7~
In this way~ the said safety ra~or~ in accordance with the present invention~ is ready to work s see Fig. 3 and ~ig. 4. -It should be no-ticed that the alternative use of both ~ -edges of the old fashion razor blade has been eliminated o the use o~ the traditional double edge ra~or blade is limited~ al-wa~s and only9 to the use o~ one edge of the razor blade at a time3 and,besides that~ the blade edge makes an angle 23 of ~ig. 4 with the plane normal to the direction 22 in which the sa~ety ra~or is flowing. Additionally, the cut of the beard is done by the safety ra~or's blade being placed at a 90 angle with the beard~ as the safety razor~s e~terior plate, very thin, flows parallel to the face surfaoe~ as in ~ig. 2 and Detail ~
~lthough the invention has been specifically described ~ith reference to the particular embodiment -thereof, as shown in the accompanying drawings~ it should be understood that -numerous variations and modifications of the described safety ra~or are possible.
In fact~ the ~afety razor~s handle member 10~ illus-trated on Fig. 3, as described before and shaped as an arc of a parabola~ may be, indif-ferently, shaped as an arc of a circle~
either as an arc of an ellipse or as an arc o~ an hyperbola~
since all these geometric curves are curves of intersection of a plane and a right circular cone and they are called conic sections~ or conic for short.
Additionally~ the use of fastening members o-f a form di~erent to that previously described and illustrated in de-tails in ~ig. 5~ ~ig. 7 and in the Drawings A and B of Detail D
is possible~ wi-thout altering the spirit o~ this invention.
The whole sa:~ety razor~ in accordance with the present ~ ,.
, - . . ~. . . . .
5~65 ~
invention, willg normally~ be built of hi~h irnpact polys-tyrene, although~ its manufacture from other rnaterials is not precluded.
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blade at a 90 angle with the beard.
Other objectsg features and advantages of the pres-en-t invention will become apparent as the description herein proceeds.
Description of the preferred embodiment.
In the accompanying drawin~s, Fig. 3 and ~ig. 4 il-lustrate the preferred embodiment of said safet~ razor, in accordance with the present invention.
In fact, the parts that compose this safet~ ra~or are only threeg plus~ of course, the regular old fashion double edge razor blade on the market for over half a century.
'rhese parts, more specificallyg are ~
a) one interior plate~ as illustrated in Figo 6 and indicated at 15 Said interior plate 15 has three raised portions of its inner surface, which act as reference marks 30 (male) to lo cabe, among them, the ra~or blade in a flat position.
The three raised portions 30 (male) of this inner sur-face equal the raæor blade's thickness.
In the middle of said inner surface there is~ also~
one longitudinal slot with two holes at its extremities, which acts as reference mark 18 (female) to be connected to the exterior plate's 16 corresponding raised members 17 and l9s (male) of ~ig. 5. A longitudinal slo-t 25, loca-ted at the lower part of -this inner surface, serves to dispose of the cut beard, and the bottom edge 27 of this interior pla-te 15 acts as the -face's safety guard;
b) one exterior plate~ as illustrated in Fig. 5 and indicated at 16. Said exterior plate 16 has~ in the middle of its inner flat surface~ three longitudinal raised male members, indicated at 17 and l9æ. ~hese three raised male members, 17 and l9s, act as reference marks that are to be connected to the interior plate's corresponding slot member 18 (female) of ~ig. 6~ which has two holes at ibs extremities. The Drawing A of Detail D is a side ~iew of the exterior plate 16 assembled to -the interior plate 15 with -the raYor blade 28 in be-tween and in a flat po- `
sitionO It should be noticed -that the two raised reference mark members 19s (male) are emerging from the bottom of the interior plate 15: they are~ alsoa acting as fastening mem-bers l9s (male). ~hey are to be connected to the handle's corresponding longitudinal base slot member 20 (female) of Fig. 7. It should be pointed out that the top edge 26 of said -exterior plate 16~ as illustrated on Drawing A of Detail D
is always used -to remove the shaving cream from any crucial spots of the face to be shaved;
c) one square section handle member7 as illustrated in Fig 3 and indicated al 10. Said square section handle member 10~ `~
shaped like an arc of a parabola~ acts9 at one endg as the griping portion 11 of this safety razor.
~he square section of this handle member 10 reduces its section size proportionately from the bottom of the griping portion 11 as it approaches the top end. ~ear this top end of the said arc of parabola~ the square section handle me~ber 10 becomes shaped as a truncated pyramid 12, as illustrated in Fig. 3~ with the ou-twardly faced rectangular base, as illus-trated in details in Fig. 7~ and indicated at 14.
In this rectangular base~ a longitudinal slot 20 has ~-two opposed ribs 13~ located in its two inner side top portions of the divided rectangular base 1~ 9 that form~ more specifically~
a channel~ as illustrated in Fig. 7.
~his channel or slot~ as previousl~ described~ extends longitudinally within said rectangular base 14 and is adapted to receive the runner fastening members l9s (male) of the e~terior plate 16 assembled to the interior plate 15 with the razor blade 28 in between and in a flat position~ as illustrated in the Drawings A and ~ of the Detail D.
~he upper portions of the said fastening members l9s~
as illustrated in the Drawings A and B of the Detail D~ are de-signed in compliance with the above two rib inner shape that form -the said channel~ within which they are to be connected.
~wo fastening members (male)~ indicated at 2~ of '~ ' ``' 3i6~i ~ig. 7~ located on the inner sur-fac2 side of the lon~itudinal base ohannel 20, are to be connected to the corresponding fast- ;
ening members 9s (female) of the exterior plate 16 of ~ig 5~
to prevent any longitudinal movement of the assembled plates 15 and 16~ as in the Drawing A of the Detail D~ relative to the longitudinal base channel 20 of Figo 7~
In this way~ the said safety ra~or~ in accordance with the present invention~ is ready to work s see Fig. 3 and ~ig. 4. -It should be no-ticed that the alternative use of both ~ -edges of the old fashion razor blade has been eliminated o the use o~ the traditional double edge ra~or blade is limited~ al-wa~s and only9 to the use o~ one edge of the razor blade at a time3 and,besides that~ the blade edge makes an angle 23 of ~ig. 4 with the plane normal to the direction 22 in which the sa~ety ra~or is flowing. Additionally, the cut of the beard is done by the safety ra~or's blade being placed at a 90 angle with the beard~ as the safety razor~s e~terior plate, very thin, flows parallel to the face surfaoe~ as in ~ig. 2 and Detail ~
~lthough the invention has been specifically described ~ith reference to the particular embodiment -thereof, as shown in the accompanying drawings~ it should be understood that -numerous variations and modifications of the described safety ra~or are possible.
In fact~ the ~afety razor~s handle member 10~ illus-trated on Fig. 3, as described before and shaped as an arc of a parabola~ may be, indif-ferently, shaped as an arc of a circle~
either as an arc of an ellipse or as an arc o~ an hyperbola~
since all these geometric curves are curves of intersection of a plane and a right circular cone and they are called conic sections~ or conic for short.
Additionally~ the use of fastening members o-f a form di~erent to that previously described and illustrated in de-tails in ~ig. 5~ ~ig. 7 and in the Drawings A and B of Detail D
is possible~ wi-thout altering the spirit o~ this invention.
The whole sa:~ety razor~ in accordance with the present ~ ,.
, - . . ~. . . . .
5~65 ~
invention, willg normally~ be built of hi~h irnpact polys-tyrene, although~ its manufacture from other rnaterials is not precluded.
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Claims (2)
The embodiments of the invention, in which an exclusive property or privilege is claimed, are defined as follows :
1) A safety razor assembly which comprises :
a) an exterior plate having, on its inner flat surface, three raised reference portions to locate an interior plate, com-prising two outwardly extending flanged fastening members to connect the said exterior plate to a grooved, slide-in type, fastening member forming a longitudinal base channel of the handle member, and a longitudinal rib extending be-tween the flanged members;
b) an interior plate having, on its inner surface, three raised reference portions to locate the razor blade in a flat posi-tion, and having a slot with two holes at its extremities to locate the said raised reference portions of the exterior plate, and c) a handle member shaped like an arc of a parabola, having at one end, the gripping portion of the said safety razor; the other end having the said longitudinal base channel which acts as a slide-in type fastening member to be connected to the two outwardly extending flanged fastening members of the exterior plate when assembled to the interior plate; the razor, when assembled, being such that when used;
d) the razor blade edge makes an angle with the plane normal to the direction in which the safety razor is moved;
e) the razor blade lies in a flat position between the two plates;
f) the razor blade moves parallel to the surface of the face;
g) conventional double edge razor blades may be used;
h) the exterior plate's top edge may be used to remove the shav-ing cream from any crucial spots of the face to be shaved;
i) the use of the double edge razor blade is limited, always and only, to the use of one edge of the razor blade at a time;
j) the beard is cut by the safety razor's blade being moved at a 90° angle with the beard.
a) an exterior plate having, on its inner flat surface, three raised reference portions to locate an interior plate, com-prising two outwardly extending flanged fastening members to connect the said exterior plate to a grooved, slide-in type, fastening member forming a longitudinal base channel of the handle member, and a longitudinal rib extending be-tween the flanged members;
b) an interior plate having, on its inner surface, three raised reference portions to locate the razor blade in a flat posi-tion, and having a slot with two holes at its extremities to locate the said raised reference portions of the exterior plate, and c) a handle member shaped like an arc of a parabola, having at one end, the gripping portion of the said safety razor; the other end having the said longitudinal base channel which acts as a slide-in type fastening member to be connected to the two outwardly extending flanged fastening members of the exterior plate when assembled to the interior plate; the razor, when assembled, being such that when used;
d) the razor blade edge makes an angle with the plane normal to the direction in which the safety razor is moved;
e) the razor blade lies in a flat position between the two plates;
f) the razor blade moves parallel to the surface of the face;
g) conventional double edge razor blades may be used;
h) the exterior plate's top edge may be used to remove the shav-ing cream from any crucial spots of the face to be shaved;
i) the use of the double edge razor blade is limited, always and only, to the use of one edge of the razor blade at a time;
j) the beard is cut by the safety razor's blade being moved at a 90° angle with the beard.
2) Safety razor as claimed in claim 1, in which the handle member is shaped like an arc of an ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA292,399A CA1045365A (en) | 1977-12-05 | 1977-12-05 | Double edge blade safety razor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA292,399A CA1045365A (en) | 1977-12-05 | 1977-12-05 | Double edge blade safety razor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1045365A true CA1045365A (en) | 1979-01-02 |
Family
ID=4110211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA292,399A Expired CA1045365A (en) | 1977-12-05 | 1977-12-05 | Double edge blade safety razor |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1045365A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247982A (en) * | 1979-04-02 | 1981-02-03 | Warner-Lambert Company | Skin-flow control razor |
| EP2508309A1 (en) | 2011-04-05 | 2012-10-10 | The Gillette Company | Razor handle with a rotatable portion |
| WO2013050952A1 (en) | 2011-10-03 | 2013-04-11 | The Gillette Company | Razor handle with a rotatable portion |
| WO2013148480A1 (en) | 2012-03-28 | 2013-10-03 | The Gillette Company | Indicia for razor with a rotatable portion |
| US9889572B2 (en) | 2010-08-11 | 2018-02-13 | Thomas J. Bucco | Razor with cutting blade rotatable about multiple axes |
-
1977
- 1977-12-05 CA CA292,399A patent/CA1045365A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247982A (en) * | 1979-04-02 | 1981-02-03 | Warner-Lambert Company | Skin-flow control razor |
| US9889572B2 (en) | 2010-08-11 | 2018-02-13 | Thomas J. Bucco | Razor with cutting blade rotatable about multiple axes |
| US11235486B2 (en) | 2010-08-11 | 2022-02-01 | Sphere Usa, Llc | Razor with cutting blade rotatable about multiple axes |
| EP2508309A1 (en) | 2011-04-05 | 2012-10-10 | The Gillette Company | Razor handle with a rotatable portion |
| WO2013050952A1 (en) | 2011-10-03 | 2013-04-11 | The Gillette Company | Razor handle with a rotatable portion |
| WO2013148480A1 (en) | 2012-03-28 | 2013-10-03 | The Gillette Company | Indicia for razor with a rotatable portion |
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