Shaving apparatus

A manual shaving apparatus comprising:

• a plurality of blade stacks, each said blade stack comprises a plurality of identical blades each blade including at least two cutting edges, the blades in each stack are orientated to be in register with each other, and each blade in a stack is arranged to allow rotation about a common axis and to present a cutting edge of each blade in each stack in a common plane.

A shaving apparatus comprising:

• a blade stack comprises a plurality of identical razor blades each including at least two cutting edges, wherein each razor blade in said stack is supported by a common axle that is rotatable about an axis of rotation to present a cutting edge of each razor blade in a common plane with a cutting edge of all the other razor blades in the blade stack.

A razor blade unit for use in a manual shaving apparatus comprising:

• a housing that holds a blade stack comprises a plurality of identical razor blades each including at least two cutting edges, each razor blade in said stack supported by a common axle that is rotatable about an axis of rotation relative to the housing to rotate the razor blades in the blade stack in unison to allow sequential presentation of each cutting edge of each razor blade for shaving, in a manner such that a cutting edge of all the other razor blades in the blade stack are presented in a common plane.

A disposable razor blade unit for engagement to a manual shaving apparatus handle said disposable razor blade unit comprising:

• a. housing,
• b. at least one array of planar razor blades arranged on a common axle wherein each razor blade is supported on said common axle parallel to each other and spaced apart from each other, each razor blade including at least at first cutting edge and a second cutting edge, the first cutting edge of each razor blade positioned such that is it located on a plane with which all first cutting edges f each razor blade are coincident, the second cutting edge of each razor blade positioned such that is it located on a plane with which all second cutting edges of each razor blade are coincident,
• c. a driver actuable by a digit of a user connected to said common axle whereby the user can rotate said common axle relative to said housing to rotate the array and selectively present one of the first cutting edge and second cutting edge of each razor blade of the array for use in shaving.