Bi-directional razor structures and systems

A bi-directional razor for manual shaving comprising:

• a single elongated razor head having a working face with first and second elongated hair cutting zones, each zone being arranged in a generally planar configuration and respectively defining first and second working planes where contact with the skin of a user is to be made for cutting hair while shaving, the head having an overall generally rectangular shape with first and second ends, first and second generally parallel longitudinal edges extending between the ends, and a longitudinal axis generally running parallel to and located substantially equidistant between the first and second longitudinal edges, with the first cutting zone being generally located between the first and second ends end between the first longitudinal edge and the longitudinal axis, and with the second cutting zone being generally located between the first and second ends and between the second longitudinal edge and on a side of the longitudinal axis opposite the first cutting zone;
• an elongated hand grip having a principal axis and a first end portion connected to and supporting the head for movement, with the principal axis being substantially equidistant from the first and second ends of the head;
• a first elongated narrow razor blade strip extending along substantially the length of the head and having an inner portion connected to and supported by the head and an integral sharpened outer blade edge portion in the first cutting zone of the head which extends outwardly at an acute angle relative to the first working plane and projects generally toward the first longitudinal edge and away from the longitudinal axis;
• a second, elongated narrow razor blade strip extending along substantially the length of the head and having an inner portion connected to and supported by the head and an integral, sharpened outer blade edge portion in the second cutting zone of the head which extends outwardly at an acute angle relative to the second working plane and projects generally toward the second longitudinal edge and away from the longitudinal axis, so that the first and second outer blade portions extend in generally opposite directions from one another,
• the first and second blade edge portions having their blade edges arranged so as to define a single flat blade edge plane that is generally parallel to longitudinal axis of the razor head,
• the hand grip being adapted for manually grasping and for moving the hand grip and the head in a first direction along a user's skin for cutting hair extending therefrom and then for reversing the direction of movement of the hand grip for moving the head in a second direction opposite from the first direction along the user's skin for cutting hair extending therefrom without lifting the head from the user's skin during movements in the two opposite directions,
• whereby the user of the razor may slide the razor head back and forth upon his skin during shaving hair without changing his manner of holding the hand grip during the back and forth sliding movement upon his skin.

A single-head bi-directional razor, comprising:

• a single elongated razor head having first and second longitudinal edges, and a face and a longitudinal axis both generally located between the edges;
• a hand grip supporting the head for manual movement by a user of the razor;
• a first razor blade strip supported by the head and having a sharpened blade edge portion extending outwardly at an acute angle relative to the face and projecting generally toward the first longitudinal edge and away from the longitudinal axis;
• and
• a second razor blade strip supported by the head and having a sharpened blade edge portion extending outwardly at an acute angle relative to the face and projecting generally toward the second longitudinal edge and away from the longitudinal axis.

An elongated cartridge for a single-based bi-directional razor, comprising:

• a razor head structure having first and second longitudinal edges, and a face and a longitudinal axis generally located between the edges;
• a first razor blade strip supported by the head structure and having a sharpened blade edge portion extending outwardly at an acute angle from the face toward the first longitudinal edge and away from the longitudinal axis;
• and
• a second razor blade strip supported by the head structure and having a sharpened blade edge portion extending outwardly at an acute angle from the face and projecting toward the second longitudinal edge and away from the longitudinal axis.

A disposable bi-directional razor with handle and head substantially formed of molded plastic material, comprising:

• a single unitary elongated razor head substantially formed from molded plastic material and having a longitudinal axis and first and second longitudinal edges on opposite sides of the longitudinal axis, the razor head having a generally elongated narrow exposed working face with first and second hair cutting zones on opposite sides of the longitudinal axis;
• an elongated hand grip substantially formed from molded plastic material having a first end integrally connected to and supporting the head so that the hand grip extends transversely from the head;
• a first, elongated, razor blade strip set with a first blade edge and a second blade edge extending along the length of the head, the first blade strip set having inner portions supported by the head and integral, sharpened outer, elongated blade edge portions extending outwardly of the face at an acute angle relative to the first hair cutting zone, and projecting toward the first longitudinal edge away from the longitudinal axis;
• a second, elongated, razor blade strip set, with a third blade edge and a fourth blade edge, substantially identical in size and shape to the first razor blade strip set and extending along the length of the head and spaced apart therefrom and having elongated inner portions supported by the head and integral, sharpened outer, elongated blade edge portions extending outwardly of the face at an acute angle to the second hair cutting zone, and projecting toward the second longitudinal edge away from the longitudinal axis, so that the first and third blade edge portions extend in generally opposite directions towards their respective first and second longitudinal edges;
• the hand grip being adapted for manually grasping and for moving the hand grip and the head in one direction along a user's skin for cutting hair extending therefrom and then for reversing the direction of movement of the hand grip for moving the head in the opposite direction along the user's skin for cutting hair extending therefrom without lifting, tilting or repositioning the head from the user's skin during movements in the opposite directions,
• whereby the user of the razor may slide the razor back and forth in his own normal manner of moving a conventional razor upon his skin without changing his manner of holding the hand grip during the back and forth sliding movement upon his skin.

A single-head bi-directional razor, comprising:

• a single elongated razor head having a top and a bottom, first and second longitudinal edges, a longitudinal axis generally located between the edges, and a face located on the top of the razor head generally between the edges;
• an elongated hand grip supporting the razor head for manual movement and connected to the bottom of the razor head;
• a first razor blade strip supported by the head and having a sharpened blade edge portion extending outwardly at an acute angle relative to the face and projecting generally toward the first longitudinal edge and away from the longitudinal axis, and arranged to be movable relative to the razor head in response to pressure applied to that blade strip;
• a second razor blade strip supported by the head and having a sharpened blade edge portion extending outwardly at an acute angle relative to the face and projecting generally toward the second longitudinal edge and away from the longitudinal axis, and arranged to be movable relative to the razor head in response to pressure applied to that blade strip;
• a third razor blade strip supported by the head and provided with a sharpened blade edge portion substantially identical in length to and closely adjacent to and spaced a short distance from the sharpened blade edge portion of the first razor blade strip, the third blade strip being arranged to be movable relative to the razor head in response to pressure applied to that blade strip;
• and
• a fourth razor blade strip supported by the head and provided with a sharpened blade edge portion substantially identical in length to and closely adjacent to and spaced a short distance from the sharpened blade edge portion of the second razor blade strip, the fourth blade strip being arranged to be movable relative to the razor head in response to pressure applied to that blade strip,
• whereby each of the blade strips is movable while being pushed against a user's skin during use of the razor.

A bi-directional razor, comprising:

• an elongated razor head structure having first and second longitudinal edges, a working face and a longitudinal axis generally located between the edges, and connection means;
• a re-usable handle with connector means for releasably fastening to the connection means of the head structure;
• the razor head structure including first and a second narrow razor blade strips extending along the working face, each strip having an integral inner portion captivated in the head structure and an integral outer portion which extends outwardly of a respective one of the working face at an acute angle relative thereto, with the outer portions being sharpened to provide blade shaving edges and angularly extending in generally opposite directions away from each other so that the sharpened outer portion of the first blade strip angularly extends at an acute angle generally toward the first longitudinal edge of the head structure, and so that the sharpened outer portion of the second blade strip extends at an acute angle generally toward the second longitudinal edge of the head structure,
• whereby the handle is manually releasable from the head structure so that the head structure can be replaced by a duplicate head structure when desired, and
• whereby the head structure may be manually moved by the handle in first and second opposite directions along a user's skin in order to effect cutting of hair by the first and second blade strips respectively without lifting the head structure from the user's skin and without altering the inclination of the handle relative to the user's skin while reversing directions, so that the user may slide the razor back-and-forth upon his skin without changing his normal manner of holding the handle during such back-and-forth movement of the razor.

A single-head bi-directional razor, comprising:

• a single elongated razor head having a generally rectangular top and a bottom, first and second longitudinal edges, a longitudinal axis generally located between the edges, and a face located on the top of the razor head and between the edges;
• an elongated hand grip supporting and connected to the bottom of the razor head;
• first, second, third and fourth razor blade strips, each strip supported by the head, each strip being substantially identical in length to the other blade strips, each strip having a sharpened edge portion extending outwardly at an acute angle relative to the face and projecting away from the longitudinal axis, and each strip being arranged so that it is individually movable relative to the razor heed in response to pressure applied to that blade strip while it is being pushed against a user's skin during shaving,
• the first and third razor blade ships projecting generally toward the first longitudinal edge, and generally being arranged such that their respective sharpened edge portions are parallel to and spaced closely to one another, and
• the second and fourth razor blade strips projecting generally toward the second longitudinal edge, and generally being arranged such that their respective sharpened edge portions are parallel to end spaced closely to one another.