Blade unit retaining casings and storage tray

Claim 2

The combination of a plurality of individual protective safety razor head unit casings and a tray for storing said plurality of the said casings in side-by-side relationship, each said casing having a single safety razor head unit therein, eaCh said head unit incorporating at least one blade and a head member to which the blade is permanently secured and which provides a guard surface, said head unit being detachably engageable with a safety razor handle, each said casing defining a single chamber in which a single head unit is received, structure in said casing for retaining said head unit therein against accidental removal in such a manner that the cutting edge of said blade is protected against damage and wherein said head unit is engageable by the said handle while said head unit is still within said chamber, each said head unit when engaged with the handle being withdrawable from its casing by means of the handle, said tray including resilient securing structure constructed to secure each individual casing in said tray in aligned side-byside relationship with another casing secured in said tray.

Claim 3

A combination according to claim 1, wherein insertion of the head into said box and removal of the latter therefrom are permitted by resilient deformation of the material of which the box is made, the head member co-acting with the box to effect such deformation.

Claim 4

A combination according to claim 1 wherein said head unit has attachment means on a surface thereof opposite said guard surface, said attachment means being engageable by the said handle by transverse relative sliding movement of the said handle and said head unit in the longitudinal direction of said head unit (parallel with the blade edge) and said box has at least one of its said end walls formed with a notch to permit sliding insertion of the said handle in the said longitudinal direction.

Claim 5

A combination according to claim 3 and further including a flange outwardly projecting from each said end wall for facilitating manual gripping of said box during engagement of said head unit by the handle and withdrawal of said head unit from said box by means of the handle and during reinsertion of said head unit into said box for storage and subsequent disengagement of the handle from said head unit.

Claim 6

A combination according to claim 1 wherein each said casing comprises an open-topped rectangular box having two opposed side walls, two opposed end walls, and a base that defines a single chamber in which said head member is received, and internal projecting means in said box which make snap fitting engagement with said head unit to retain said head unit in said box against accidental displacement from said box.

Claim 7

The combination of a plurality of individual protective safety razor head unit casings, each said casing having a single safety razor head unit therein, each said head unit incorporating at least one blade and a head member to which the blade is permanently secured and which provides a guard surface, said head unit being detachably engageable with a safety razor handle, each said casing receiving a single head unit and retaining the latter therein against accidental removal in such a manner that the cutting edge of said blade is protected against damage and wherein said head unit is engageable by the said handle while said head unit is still within its casing, each said head unit when engaged with the handle being withdrawable from its casing by means of the handle, and a tray for storing said plurality of the said casings in side-by-side relationship, structure in said tray for guiding successive removal of individual casings therefrom and said casings being positioned on said tray such as to prevent access to the head unit in each said casing prior to removal of said casing from said tray.

Claim 8

The combination of a plurality of individual protective safety razor head unit casings, each said casing having a single safety razor head unit therein, each said head unit incorporating at least one blade and a head member to which the blade is permanently secured and which provides a guard surface, said head unit being detachably engageable with a safety razor handle, each said casing receiving a single head unit and retaining the latter therein against accidental removal in such a manner that the cutting edge of said blade is protected against damage and wherein said head unit is engageable by the said handle while said head unit is still within its casing, each said head unit when engaged with the handle being withdrawable from its casing by means of the handle, and a tray for storing said plurality of the said casings in side-by-side relationship, structure in said tray for guiding successive removal of individual casings therefrom and said casings being positioned on said tray such as to prevent access to the head unit in each said casing prior to removal of said casing from said tray.

Claim 9

A combination according to claim 6 wherein each said casing comprises an open-topped rectangular box having two opposed side walls, two opposed end walls, and a base that defines a single chamber in which said head member is received, internal abutment means in said box for engagement by parts of said head member to hold the cutting edge of said blade spaced from the interior surfaces of said box, and internal projectiNg means in said box which make snap fitting engagement with said head unit to retain said head unit in said box against accidental displacement from said box, said boxes being assembled in secured relation to said tray with their open tops against the floor of said tray, said boxes being provided with stop means which prevent their assembly to said tray in any other attitude.

Claim 10

The combination of a plurality of individual protective safety razor head unit casings, each said casing having a single safety razor head unit therein, each said head unit incorporating at least one blade and a head member to which the blade is permanently secured and which provides a guard surface, said head unit being detachably engageable with a safety razor handle, each said casing comprising an open-topped rectangular box having two opposed side walls, two opposed end walls, and a base that defines a single chamber in which said head member is received, internal abutment means in said box for engagement by parts of said head member to hold the cutting edge of said blade spaced from the interior surfaces of said box, and internal projecting means in said box which make snap fitting engagement with said head unit to retain said head unit in said box against accidental displacement from said box in such a manner that the cutting edge of said blade is protected against damage and wherein said head unit is engageable by the said handle while said head unit is still within its box, each said head unit when engaged with the handle being withdrawable from its casing by means of the handle, stop structure projecting externally from each said box, and a tray for storing said plurality of the said casings in side-by-side relationship, said tray having opposed side walls which are formed with longitudinally extending internal rails which cooperate with said stop structure of individual boxes to prevent the latter from being removed from said tray while said stop structures are in engagement with said rails, each said stop structure slidingly engaging said rail to guide the box towards one end of said tray, said rails being interrupted for passage of the stop structure from said tray therethrough.

Claim 11

The combination of a plurality of individual protective safety razor head unit casings, each said casing having a single safety razor head unit therein, each said head unit incorporating at least one blade and a head member to which the blade is permanently secured and which provides a guard surface, said head unit being detachably engageable with a safety razor handle, each said casing comprising an open-topped rectangular box having two opposed side walls, two opposed end walls, and a base that defines a single chamber in which said head member is received, internal abutment means in said box for engagement by parts of said head member to hold the cutting edge of said blade spaced from the interior surfaces of said box, and internal projecting means in said box which make snap fitting engagement with said head unit to retain said head unit in said box against accidental displacement from said box in such a manner that the cutting edge of said blade is protected against damage and wherein said head unit is engageable by the said handle while said head unit is still within its box, each said head unit when engaged with the handle being withdrawable from its casing by means of the handle, stop structure projecting externally from each said box, and a tray for storing said plurality of the said casings in side-by-side relationship, said tray having opposed side walls which are formed with longitudinally extending internal rails which cooperate with said stop structure of individual boxes to prevent the latter from being removed from said tray while said stop structures are in engagement with said rails, each said stop structure slidingly engaging said rail to guide the box towards one end of said tray, said rails being interrupted for passage of the stop structure from said tray therethrough.

Claim 12

A combination according to claim 8 wherein said tray is constructed of a resiliently flexible material and said rails and said stop structures are constructed to permit snap fitting insertion of said boxes into said tray between said rails.

Claim 13

A combination according to claim 9, wherein said rails have internal side faces sloping inwardly and downwardly towards said floor of the tray, said faces providing cam-surfaces facilitating outward deflection of said side walls of said tray upon insertion of the casings.

Claim 14

A combination according to claim 10 wherein the floor of said tray is provided with upstanding projections which permit movement of said boxes thereover towards the said one end of the tray, but which resist movement of said boxes thereover in the reverse direction.

Claim 15

The combination of a plurality of individual protective safety razor head unit casings, each said casing having a single safety razor head unit therein, each said head unit incorporating at least one blade and a head member to which the blade is permanently secured and which provides a guard surface, said head unit being detachably engageable with a safety razor handle, each said casing comprising an open-topped rectangular box having two opposed side walls, two opposed end walls, and a base that defines a single chamber in which said head member is received, and internal projecting means in said box which make snap fitting engagement with said head unit to retain said head unit in said box against accidental displacement from said box in such a manner that the cutting edge of said blade is protected against damage and wherein said head unit is engageable by the said handle while said head unit is still within its box, each said head unit when engaged with the handle being withdrawable from its casing by means of the handle, stop structure projecting externally from said box, and a tray for storing said plurality of the said casings in side-by-side relationship, said tray having opposed side walls which are formed with longitudinally extending internal rails which cooperate with said stop structure of individual boxes to prevent the latter from being removed from said tray while said stop structures are in engagement with said rails, each said stop structure slidingly engaging said rail to guide the box towards one end of said tray, said rails being interrupted for passage of the stop structure from said tray therethrough.

Claim 16

The combination of a plurality of individual protective safety razor head unit casings, each said casing having a single safety razor head unit therein, each said head unit incorporating at least one blade and a head member to which the blade is permanently secured and which provides a guard surface, said head unit being detachably engageable with a safety razor handle, each said casing comprising an open-topped rectangular box having two opposed side walls, two opposed end walls, and a base that defines a single chamber in which said head member is received, and internal projecting means in said box which make snap fitting engagement with said head unit to retain said head unit in said box against accidental displacement from said box in such a manner that the cutting edge of said blade is protected against damage and wherein said head unit is engageable by the said handle while said head unit is still within its box, each said head unit when engaged with the handle being withdrawable from its casing by means of the handle, stop structure projecting externally from said box, and a tray for storing said plurality of the said casings in side-by-side relationship, said tray having opposed side walls which are formed with longitudinally extending internal rails which cooperate with said stop structure of individual boxes to prevent the latter from being removed from said tray while said stop structures are in engagement with said rails, each said stop structure slidingly engaging said rail to guide the box towards one end of said tray, said rails being interrupted for passage of the stop structure from said tray therethrough.

Claim 17

A combination according to claim 12 wherein said tray is constructed of a resiliently flexible material and said rails and said stop structures are constructed to permit snap fitting insertion of said boxes into said tray between said rails.

Claim 18

A combination according to claim 13 wherein said rails have internal side faces sloping inwardly and downwardly towards the floor of said tray, said faces providing cam-surfaces facilitating outward deflection of said side walls of the tray upon insertion of said boxes.

Claim 19

The combination of a plurality of individual protective safety razor head unit casings, each said casing having a single safety razor head unit therein, each said head unit incorporating at least one blade and a head member to which the blade is permanently secured and which provides a guard surface, said head unit being detachably engageable with a safety razor handle, each said casing receiving a single head unit and retaining the latter therein against accidental removal in such a manner that the cutting edge of said blade is protected against damage and wherein said head unit is engageable by the said handle while said head unit is still within its casing, each said head unit when engaged with the handle being withdrawable from its casing by means of the handle, and a tray for storing said plurality of the said casings in side-by-side relationship, the floor of said tray being provided with an upstanding projection, the casings being movable across the projection towards one end of said tray, said projection resisting a movement of said casings thereover in the reverse direction.

Claim 20

The combination of a plurality of individual protective safety razor head unit casings, each said casing having a single safety razor head unit therein, each said head unit incorporating at least one blade and a head member to which the blade is permanently secured and which provides a guard surface, said head unit being detachably engageable with a safety razor handle, each said casing receiving a single head unit and retaining the latter therein against accidental removal in such a manner that the cutting edge of said blade is protected against damage and wherein said head unit is engageable by the said handle while said head unit is still within its casing, each said head unit when engaged with the handle being withdrawable from its casing by means of the handle, and a tray for storing said plurality of the said casings in side-by-side relationship, the floor of said tray being provided with an upstanding projection, the casings being movable across the projection towards one end of said tray, said projection resisting a movement of said casings thereover in the reverse direction.